subject stringclasses 4
values | grade stringclasses 15
values | skill stringclasses 445
values | pic_choice bool 2
classes | pic_prob bool 2
classes | problem stringlengths 0 1.12k | problem_pic unknown | choices listlengths 2 4 ⌀ | choices_pic listlengths 2 4 ⌀ | answer_idx int64 0 3 |
|---|---|---|---|---|---|---|---|---|---|
math | grade-2 | greatest-and-least-word-problems-up-to-100 | false | true | The owner of an orchard kept records about how many apples were picked in the past 4 days. On which day were the most apples picked? | "iVBORw0KGgoAAAANSUhEUgAAAWUAAAC9CAYAAABrn2xNAABEM0lEQVR4nO3dd1QU19vA8e+ygHQQsWBDUawYsYbEHjWxlxhLwII1RoOKSSyJUWM0+qKxx6ho1CRi70aDPwsYDWhUEElsoIhGLKggHXZ33j9WBlaKC6iLej/n7Dkwc+fOMyzz7N07d+YqvEeESgiCIAgGt9TPDWOAQUPdDByKIAjCm+3XdWEAGBk2DEEQBCEnkZQFQRBKEJGUBUEQShCRlF8RiRqJXnGPGfggkUSNuDYrCK8rkZRLgMD0TPyS0wpMtmczVdxWa7iiUjP... | [
"Friday",
"Wednesday",
"Thursday",
"Saturday"
] | null | 1 |
science | grade-3 | identify-minerals-using-properties | true | false | Select the one substance that is not a mineral. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANcAAAEYCAYAAADPtGNgAABFS0lEQVR4nO19eZhcRbn+W3W6e3pmMlnIBtlMZElYQlZMEBBUIMoSooGwBRANBCH8UERlkav3QcV7NS4oOwZBvIACLiAJeHkuRBRjIAkQ4HJDTDAohkAWss1Mn1Pv74+qOlt3z/RkppNMT715Jt19Tp06dc6p93xffUuVWLqFHN0INHlwcHDYBWwNgNe3A2+3Av0ywNF99XbpiOXg0Dk0ecDoRv19WxBtl45YDg6dh+VRgdE2uWea4uBQ+3DkcnCoEhy5HByqBEc... | 0 |
math | grade-2 | match-analog-and-digital-clocks | true | true | Look at the analog clock: Which digital clock shows the same time? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABSKUlEQVR4nO3deViU57k/8C/rAAoMyirqDLiCRsZ9Z4mazajYJG2zgr+TpacnC7ZJ0542BU/S9LRpKybpOW2THMmepjFijFk0xhG3YIwOGkGMwKAosskMKMwwLL8/kAnLLM9szADfz3VxZZh53nfuIHNxzzP3e99eXV1dXSAiIiIiIqfwdncARERERETDCRNsIiIiIiInYoJNRERERORETLCJiIiIiJyICTYRERERkRP5ujsAcj9DWwcM+na06dvRpu9Am74dBn07vH2... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA5oAAAEJCAYAAAD1mFhPAABcnklEQVR4nO3de1zT970/8BfXAAoJytVbAl6QSyVe6gUtFy+9WStObderuNV2Z8euuHXr+ttasO22s3at2HbnbLOd9LbW1gu2tRcvFVGxWKtBBcQKBEGRi5KAQkK4/P5AUi4h+eZGAryejwcPIfl8P993Ndny4nNz6ejo6AAREREREdmEi4uLo0sgcjhXRxdAREREREREQwuDJhEREREREdkUgyYRERERERHZFIMmERERERER2RSDJhEREREREdmUu6MLIMfTtbR... | 0 |
math | grade-4 | points-lines-line-segments-rays-and-angles | false | true | What is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABhCAYAAADsidaRAAAH1UlEQVR4nO3dv2/UhR/H8Xd7n0II9jQoBr5cQiSEYIE29EzLQuLSDpp8pw6S7wS7YWFxkKGOOjCjgdGGtJs6lH+gDK00JiUYgjGp3ziRcEg00va+w+X6LXJXeu3nfnzuHo/x7qN9DwzPvHK99pXL5XIAAACp6G/3AQAA0E0ENgAApEhgAwBAigQ2AACkaEeBXSqVYnh4OKanp2u+d/Hixbh27VrqxwEAQNb07fRbRK5duxZ3796N5eXll17/6KOPIiLihx9+SP86AAD... | [
"a line segment",
"a point",
"a line",
"a ray"
] | null | 0 |
math | algebra-1 | perimeter-and-area-changes-in-scale | false | true | Look at this triangle: If the height is tripled, then which of the following statements about its area will be true? | "iVBORw0KGgoAAAANSUhEUgAAACQAAAAOCAYAAABHN77IAAABc0lEQVR4nO2VLYsCURSGX4eVMYiOOl0sik0UZoLJj6JRm0mMJkHEbDOIf8Civ2CCySAIgmA1OeUWk2UE0+DXaxNcWFeGhTHs0+7hvdwHzuEeD0nig5DcFviOBABCCJTLZQQCAcTjcYxGI/eMbNtmIpFgr9fj8XjkYrFgKBTidDqlG2C5XDIYDPJ6vT6K3W6X1Wr1x0uRSITtdpvJZJKKorDRaNAwDGqaRr/fz0KhQMuyHOUxm80YDoefHpxMJkylUi+FarUahRAUQlB... | [
"The ratio of the new area to the old area will be 3:1.",
"The ratio of the new area to the old area will be 1:2.",
"The ratio of the new area to the old area will be 2:1.",
"The ratio of the new area to the old area will be 4:1."
] | null | 0 |
math | grade-2 | identify-the-fraction | false | true | What fraction of the shape is pink? | "iVBORw0KGgoAAAANSUhEUgAAAQQAAABkCAYAAABgi07kAAAB5ElEQVR4nO3csW0UURSG0bsWFayLsETukITEGUXQBC24Coogc0JC5g6gCLuEIVj4tFvBPGnOqeBKI316muA/bdu2DcDMfJiZeX1+nfc/73vfcmjnh/M8fnvc+wwO7m5mxGABb7/f9j4BLi+E/z59+bzXHYf268fPvU+Amfn3QgCYEQTgiiAAEQQgggBEEIAIAhBBACIIQAQBiCAAEQQgggBEEIAIAhBBAHIZSNlm5mSoY1eWLVnA5YVw2vkKfAOWYEJtAV5mrMI/BCC... | [
"2/6",
"4/5",
"2/7",
"2/5"
] | null | 3 |
math | pre-k | what-comes-next | true | true | What shape comes next? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAD1CAYAAAAlI4EUAAAVQ0lEQVR4nO3dW4xk+X0X8N+pa1+nZya7PXuD3c0oL8Zr8xCy8QoTxWR5sqMlQiIWiYSCFSJAsRQbIYgtK/E6KEROsKUgTIAHtIh9AgmEQMFYchJlg+Fl157ESrTOxuwOc1n37Ex3dXfdzuGhd247tz5dVedU/+vzkSxbM93/85+vf1P1nX+fqsqKoigCAABIQqPuDQAAANOj4AMAQEIUfAAASIiCDwAACVHwAQAgIQo+AAAkRMEHAICEKPgAAJAQBR8AABKi4AMAQEI... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAz4AAAD1CAYAAACRDCAyAAAX1ElEQVR4nO3dW4xk+X0X8N85det7z052e/ZiWG9WfjFem4eQjS1MFJPlyY6cCAksEikKVogA2ZJthCC2rMR2UIicYEtBmAAPyBF+AgmEiIKxZGJlg4kU1vYkFtE6GzPbnsu651p9qcs5PPTObadnpk931TnV//p8JEve7p5//fs7P9Wcb51Tp7KyLMsAAACSkGVZ01uYSXnTGwAAAJg2xQcAAEie4gMAACRP8QEAAJKn+AAAAMlTfAAAgOQpPgAAQPIUHwAAIHm... | 1 |
science | grade-4 | predict-temperature-changes | true | true | Two identical blocks are heated to different temperatures. The blocks are placed so that they touch each other. Heat can flow from one block to another but cannot escape from the blocks. Later, the temperature of each block is measured again. Which pair of temperatures is possible? | "iVBORw0KGgoAAAANSUhEUgAAAQQAAACgCAYAAADq8hJGAAAXLklEQVR4nO3deXAkZ3nH8W93zz0jaUb3vYe96zW2wdwY1pjLYIrDHGUcSCgqVFKQSuWoHPyBSSqVECiSIgVJVQiVEHOF+/Caw2AWbDBgwwLlxcZmvYfukbSS5r6nu9/80VILWVpp5JXUI+n5/LO7o9HMu3pav+5++p1+NaWUQgghAN3rAQghmocEghDCJYEghHBJIAghXBIIQgiXBIIQwiWBIIRwSSAIIVwSCEIIlwSCEMIlgSCEcEkgCCFcEghCCJcEghDC5fN6AFv... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAiAAAAC4CAYAAADaI1cbAAAitklEQVR4nO3de5BcV30n8O+5t9+v6Z7peY9GI1mS5RcY4wQbbMzLYAqMCRQ4TpaioHYrUCmyW7uE1MZkd2sXksqmsgXZqmWpCoGQACY8ZQF+YIPBOBaWYS38wLJG0rwfmp5+v/vee/aP29Oj0Yw0PVL3vbd7vp8q11itnp6jOWd+8733/u5pAUCCiAiAlBJLVWCyCOR0QGN1IKIWcQkgrAIHA8CgBxBgACGiuqWKxDNZu0dBRN3udRHAZfcgiMg5ThXNj8Me4Oq... | 0 |
math | grade-4 | identify-rhombuses | false | true | Is this quadrilateral a rhombus? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEPCAYAAAB4ALMPAAAu7klEQVR4nO3da4xc9bnv+V+tWl33qq7qbt+2sYONTQBDjMHExFwMscFgTMJIyQzbW9EejZQ5I3KiIzR5NS8SAki8iZyMZt4cjY5AO+dIyYHokGAbJ9gxBhxzxwEc48QY2mB87a7qulf1qrXmRXnXqra72227umt11feztaW1uqq7/9hl5Vf/ep7/43McxxEAAACAljDavQAAAACgkxCwAQAAgBYiYAMAAAAtRMAGAAAAWoiADQAAALQQARsAAABoIQI2AAAA0EJmuxc... | [
"yes",
"no"
] | null | 1 |
math | kindergarten | represent-numbers-up-to-20 | true | false |
Which picture shows 2 dots? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAGAAAABICAYAAAAJZ/BjAAAEhUlEQVR4nO2dv08bZxyHH2NjdD4b2whIiBIWoMhyWiddLEXtXoaOhRWiImUrEmxlDBtIZWtFlbBCt3bwH4AUiQ5t3ZQSCiyQBgKo/m3XxtZ1cM4FIsFBXvv1kfdZjM/wfT/vPa/vuHtPeh2GYRj7JdjKQ6YCZQNFHXE5wOeEAQ/ccINjv2gYP6dlx3o/ibaDazNffdPjhkG9akdRPzIV2MjBXgn+ykNLulz9QO38xuBzVvc1QLYCLZUTHygag7mvjw1okRtFoQR... | 0 |
math | grade-1 | simple-fractions-what-fraction-does-the-shape-show | false | true | What fraction of the shape is green? | "iVBORw0KGgoAAAANSUhEUgAAAU8AAABkCAYAAAAG0bKzAAAB9ElEQVR4nO3UIW4VUBRF0fubTqJ0Ek1QFVShkEyhjgTPENAIXGeAxaFqCA4G0ZRZPCyyf3+Sl5K13HFH7cNaaw0ARzmfmXn79f38+P1r95cTrZk57D6RXV9czZc3n3bfAJ7obGb+g3DOPOdwzsx8f/y5+wJwhPO/x8Pt/a4fJ7m8u5mZmQ+v321+0nz89nn3BeBIZ7sPADxH4gkQiCdAIJ4AgXgCBOIJEIgnQCCeAIF4AgTiCRCIJ0AgngCBeAIE4gkQiCdAIJ4AgXg... | [
"1/4",
"1/3",
"1/2",
"1/5"
] | null | 2 |
technology | grade | icons | false | true | This is a(n old) logo of which famous app or program? | "iVBORw0KGgoAAAANSUhEUgAAAUIAAAEsCAYAAAC2U7q2AAA7h0lEQVR4nO2de5wkZXnvf1XVPd1z2bns7M4Ou8C6wLJxNR9MRF1CjCHBAzEJKCpHRSWQK0c8xnMOHkXAoFHygaPEBN3EYyDeDajHxURBTdbbhuViEmLcdblmFlhmL3Pp2bn0rarOH9VvdVV1Xd636q2umern+/ns5923u6equmb66V/9nvd5SvnxwwdAEATRyxSyPoA8UhlcMn82/xwA4OHjT2V8NIQMBibWZ30IBCcvMkextT6OycFxhfdnKBBK5MHGY+bDx5/C9xZ... | [
"Adobe Acrobat",
"Microsoft Office Excel",
"Blender",
"Telegram Messenger"
] | null | 1 |
math | grade-8 | identify-linear-and-nonlinear-functions-graphs-and-equations | false | true | The graph shows a function. Is the function linear or nonlinear? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABj/UlEQVR4nO39fXzU9Z3v/z8nM7lOSEKCCQQTRCQKJlEuVBAUxKpVyym0Htxua91bd7f2bLcXu9+e2956dvs9dV2/vf169Wu37bHd7al61u+tW7fWVTBSLFFoUJAIwQQLMUIghFxMLuf6Mxef7x9hUiIgiXzeTAYe99uNG5nJfJ7zyuc9857XvOczMy7btm0BAAAAcERGqgsAAAAALiU02AAAAICDaLABAAAAB9FgAxh322236fnnnx8//cILL+i6665TIpFIXVEAAKQ... | [
"linear",
"nonlinear"
] | null | 0 |
math | grade-7 | describe-a-sequence-of-transformations | false | true | What combination of transformations is shown below? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEyCAYAAADA5Kd8AABKt0lEQVR4nO3dd3yV5d3H8c/ZJzshCSGEEMLehIS9caE4ilrr8zhad9Uq7tVqtbX1aatWqz6Ox1Wr2LonIE5AUFZYYYSdSQiB7OTsc54/joDIyjhJSPJ9v168lMN137/rTg7kmyvX/bsNgUAggIiIiIiIhISxrScgIiIiItKRHBawS0pKWn0CnaVmW9VVzY5Vs63qdpaaIiIioWD48RaR7OzstpyLiMhhsrKy2noKIiIijWb+6Qut/QUtOzu7U9Rsq7qq2bFqtlXdtqo... | [
"reflection, then rotation",
"reflection, then translation",
"rotation, then reflection",
"rotation, then translation"
] | null | 2 |
math | kindergarten | compare-sides-and-corners | true | false | Which shape has more corners? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAALgAAAC4CAYAAABQMybHAAAH1ElEQVR4nO3dTXIbVRTF8St/pKiQBEZQLABYQhbBkAWxAooVsYHMEpyAlLjkgY2lxrItKfqI2+pm8OyKSrFiRW6p7zn3/EakQlXk7r+72/fJeo2yLMvOldm7sdlwZnZdmgisvYbZ012zHx+bff/IrNH5UJYvBnW/LJHqPX9mtvd2nP7wwyOzn79O9YugGs7MmiOz0yuz1thsZ3Cd/kJxC4Onu6llM7P3M7Od2dxfiDC4bTkvzXbqfSkim6XAhZoCF2oKXKgpcKG... | 0 |
science | grade-7 | compare-concentrations-of-solutions | false | true | The diagram below is a model of two solutions. Each yellow ball represents one particle of solute. Which solution has a higher concentration of yellow particles? | "iVBORw0KGgoAAAANSUhEUgAAAbAAAAEVCAYAAACBn7B3AAB4w0lEQVR4nO29eZwcdZ3///xUX9Nz9SSZ3JkkQyB3OFRuPACBcCmXsOqyAiIuP3W51NXFLyouXsgh7oqCKLLrxSGwCoZLFOWSUyCJXAm570zm7LPq8/uj6lP1qe6eZDLpnsz0fJ6PR9LT1UdVd9er3ufn8xFSSonBYDAYDCMMa28fgMFgMBgMg8EYMIPBYDCMSIwBMxgMBsOIxBgwg8FgMIxIjAEzGAwGw4jEGDCDwWAwjEiMATMYDAbDiMQYMIPBYDCMSIwBMxgMBsO... | [
"Solution B",
"neither; their concentrations are the same",
"Solution A"
] | null | 2 |
math | grade-5 | compare-decimals-using-grids | false | true | Which decimal is greater than the one shown in this diagram? | "iVBORw0KGgoAAAANSUhEUgAAAJwAAACcCAYAAACKuMJNAAACHklEQVR4nO3azUkDYRSG0RlJa27swg6E1CHYgV1kY3HjaiRkpzLP9eecncKVLB4/BN9127Ztgcjd9Afgfzldf7GeL1Ofgz9ue35YluXqhRMbhdPtN54e77/0g15e3751u/8GfNZ6vrj9wbe3D5m/4UgJjpTgSAmOlOBICY6U4EgJjpTgSAmOlOBICY6U4Eit++LXPIkj7UsT8yS3h96aJzFKcKQER0pwpARHSnCkBEdKcKQER0pwpARHSnCkBEfKPImEeZLb5NY8iVG... | [
"0.18",
"0.1",
"0.16",
"0.0"
] | null | 0 |
math | grade-5 | parallel-perpendicular-and-intersecting-lines | false | true | Are these lines parallel? | "iVBORw0KGgoAAAANSUhEUgAAAHQAAABKCAYAAABq6nD6AAAIlklEQVR4nO2df1CT9x3HX4DWk4pKrehUKhWVoFJRRH5488fpTcFacLauyjrwPC1Td+qp0+5QacUqtZtW57Z2uwOrddpOQddNOteiWxUQwQARjBoSwKmggiAGCOCzP9TUAIEIgecheV53uSN5vkne3Pu+n+/7+eaTJw6CIAjI2AyOYguQsS6yoTaGbKiVUGmUHDmdKLYMeogtoDvzz7Rkvvz356RmfUOtQc/xnaliS5INfR4qq++Tkn6CU2nJnEpLNjmm8PBhymvTRdH... | [
"no",
"yes"
] | null | 0 |
math | algebra-2 | outliers-in-scatter-plots | true | false | The two scatter plots below show the same data set. Choose the scatter plot in which the outlier is highlighted. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUYAAAFGCAYAAAAW1zbwAAApfElEQVR4nO3df1RTZ54/8HcSSFKFRKPCthTNtw2laikd0VCqOad2x0zrds9s59QWO22nA23HpYN1dk5n6h57ZNxZZzO6ntaqq57ZMj27w6h1tj92jlO3O9WyiwhpWRkFtcAYpdgCGgleNT+53z8it+QmiOjND+D9Oqen3CeXPE/AvPnc+9zcRyWKoviVH2i/DFwMAUERREQTSpoKyNQAeZOAbC2g+sonio39yR4WEVFqKDYAaW2Xwxu3aoH8yeHUJCKaSC6GgJO... | 0 |
math | pre-k | triangles | true | false | Which shape is a triangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACTCAYAAAB28ADfAAALH0lEQVR4nO2de4hcVx2Av3Pv7Mzu7CvJvvLcZJPmIS2YiKGpfWpRSmOFYEGpUETaP9RSVFoEpUWsFKRVwUrBByKiFq0RoVqr1mKjjbVvxMRuNskmm6RJNrOb3Z3dmZ3Ze+/xj5u1qdam6Zx777l3fh8MZHbC3bPnfPM7v3teV2mt9ak6HKxA2QdPIwgNk1PQ6cLGIgzkQZ2qaf3cTNLFErLM5V2QG6mEb1bkYXN7aKEgNErZh+E5OFmHAxVwZrzwA5FMMEmnGzo... | 1 |
technology | grade | logo | false | true | This is (part of) a (former) logo of which computer related brand? | "iVBORw0KGgoAAAANSUhEUgAAASwAAAEsCAYAAAB5fY51AAANhUlEQVR4nO3dzY9V533A8ecApYhgede59w7MnRnjRK3U1lL/h1byogoDjGtnF2WT2G4M2MbYTtyo3Vgq80Z4s7KqF/kHsoii5C+IsmiNcWwl2SZ47r1xnEURUE4Xw2XAhpn7ct6ecz6f9TA8ktHX9zy/+zwn+dUvrweAGOwpewEAoxIsIBqCBURDsIBoCBYQDcECoiFYQDQEC4jGvnH/QJqm6a8/vhY++9Mfw949e/NYE9BAzzzzD2H/XxxIdvqZsYOVJEly+/b/pW+... | [
"VIA Technologies",
"ATI Technologies",
"AMD",
"Belkin"
] | null | 2 |
math | grade-3 | is-it-a-polygon | false | true | Is this a polygon? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD7CAYAAABQdOO0AAAifElEQVR4nO3de9zX8+H/8cd16nxaZzUl4SvkOzmsmIpQ6LgNYWa+P/Y1Yc429bN0q8Y0jLCDndgwhkqbolBMOWUrZClWFB1ddXW4rq7D5/vHK7uwztfn83l9Do/7P15v1efzvMkfz+v1er1fr4JEIpFAkiRJUlIUxg4gSZIk5RILtiRJkpREFmxJkiQpiSzYkiRJUhJZsCVJkqQksmBLkiRJSWTBliRJkpLIgi1JkiQlkQU7W7wzA27vB9NviZ1EkiRJO1HgTY5Z4Pm... | [
"no",
"yes"
] | null | 1 |
math | grade-3 | is-it-a-polygon | false | true | Is this a polygon? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADgCAYAAAA5ZRHsAAAZ+klEQVR4nO3dPVRbd5rH8Z8kZKE3FIEAM56BnNnGuIXWpAy0drt2i8uddDuTbpKUmdluaMduTQspB7fQgqvdEbNebCSh6OVecX0jaQtxFcBgg5G4b9/POXPmHOITnsT2yc+Pnv/zRLrdblcAAAAABiLqdgEAAABAkBCwAQAAgAEiYAMAAAADRMAGAAAABoiADQAAAAwQARsAAAAYIAI2AAAAMEAEbAAAAGCARtwuAPiUjtGVtf9ebbMjq2hLkszd4/5fPy6+V8e8/F5... | [
"yes",
"no"
] | null | 1 |
science | grade-6 | identify-how-particle-motion-affects-temperature-and-pressure | false | true | The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles. Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature? | "iVBORw0KGgoAAAANSUhEUgAAAmwAAAGZCAYAAAA0Im0SAACbGklEQVR4nOzde1xb9f0/8FcI15AALZRLCr2T1NZehGhbb43tdF5I5+YV6m3fKVHn5gV0blObTjfdJNV9dVao33kHdU5dg5eft6Y6batJb9rak7b2BqE3KHC4k/D5/ZGe04RLueXGyfv5EIGTk8/5JIU37/O5yhhjDBGsvv449u8/gM7ODshkslBXhxAAQExMDNLTMzBp0qRQV4VIGMU/Eo4o/vUvOtQVCKWenh7U1dWBsR7ExsaGujqE+KivP46srCzExMSEuipEgij... | [
"sample A",
"neither; the samples have the same temperature",
"sample B"
] | null | 2 |
math | grade-1 | select-three-dimensional-shapes | true | false | Which shape is a cube? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAVPklEQVR4nO2de3hU5Z3HP5nMLZPLkGQCCcyQOxcFCXINCKhAFeVqferuPtunffbps6x9nt3ts7u23mi31lKrVmmFqhVXVBRBKFYoChhQCgQTIgm3JBACyaQhxIQkQxLGkJj9Y+ZMMoRLQmbmXOb9/KNz5sx5f46fvHPOe973eyK6u7u76zqgoh0udUFnNwKB4tBHQGwkZFtgmBEi6r7p7i5wyV2WQNB/psWB/nS750WKEUZHe6wWCJTGpS4ob4PzHXCqHXSuTs8... | 2 |
science | grade-3 | compare-properties-of-objects | false | true | Which property do these three objects have in common? Select the best answer. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADQCAYAAAByQhWRAAEAAElEQVR4nOz9ebSs2XnWCf723t8cc8SZz52HTOWkWZastDxPGFOAMbYLu2jXglUF3cu4GaqrCxrTUIBrQfeqhioKM4PNZAxlLAx4kG0NtpRKSanMVM4373juvWc+MX/z3rv/+OKeTOFJljN1b2Z+v7Vu3iHjRHwRsU+cd7/7eZ9HWGstQJqmbG9vM5lMKMuSmpq7jeM4tNtt1tfXCYLgdX2sev3X3GvU67/mrcxXcv3X1LwZEdZamyQJly9f5vTp0wRBgOu6d/u6amo... | [
"blue",
"slippery",
"scratchy"
] | null | 2 |
math | pre-k | one-less-with-pictures-up-to-10 | true | true | Count the dots in this group. Which group has one less than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFACAYAAACGDgu2AAAhKUlEQVR4nO3dfXBV9aHu8Ye8nuwQyAuSIDFsEOvlxYMHBEk8okVFdItwe8spZ+xM1TvVe64OvVAtPVoHdUCoxZaW6vHlzDjnUrWipwewDKb1nQBCxeAL1BgxkIKGCwkJMdEEk33/cJyR0WS//fb+rbV+38+/Wfu3nkeZ4WGxSIZEo9GoAAAAABiRZTsAAAAAECQMbAAAAMAgBjYAAABgEAMbAAAAMIiBDQAAABjEwAYAAAAMYmADAAAABjGwAQAAAIMY2AAAAIBBDGw... | null | [
"iVBORw0KGgoAAAANSUhEUgAABDAAAAFYCAYAAAClCwyGAAAyxklEQVR4nO3da3hV5Z338V/OJiEQApINxBAoliL0weFUiBVRUMGAMp1CcahV6RTspbVisTilfbStB+phZqr1gHpNnWKroFUOZWz6VKDlJDAYqoLGiIEImhRyIiaaYLKfFwxeIibZh7X3fe91fz9v8iJrr/X/qlcu13+fkiQFBQAAAMATwWBQ1W3S2y1SU7v0Mf+3DQARSU2SclKks7Ok/HQpSSwwAAAAAM9Utwa185jpKQDAX77SU0o1PQQAAADgJxUtJ372T5e... | 1 |
math | grade-4 | identify-trapezoids | false | true | Is this quadrilateral a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADGCAYAAADokPfHAAAXjUlEQVR4nO3de3SV1Z3G8efkAjFJE+4gAgIdHHXqiLJwLdoqteoqLVIVxqqNkgAz6gK0WseZDtPK2DW6Wluw1kItFkh0omIXilItrWgrU0uXtRRaoRUGuYPcQhIDOYQk7/xxgH3ewwk5l33OPpfv5x/33iZvfn8+Hs/77IDneZ4AAAAAWFHgegAAAAAglxCwAQAAAIsI2AAAAIBFBGwAAADAIgI2AAAAYBEBGwAAALCIgA0AAABYRMDOFm98T1pSJQUbXU8CAACAswh... | [
"no",
"yes"
] | null | 0 |
math | grade-6 | reflection-rotation-and-translation | false | true | How has this figure been transformed? It has been... | "iVBORw0KGgoAAAANSUhEUgAAAPoAAABkCAYAAACvgC0OAAAF0UlEQVR4nO3dT2wUZRjH8V9JaemWlq20FLGNQhMb4h/+GYixkemlGBMuxpsHuydOJpw8b69eejDx2sYDIcYDh17EpJVGEjxoFjTGqAQJNqBrZe0fWyzh9dCUrHS7M21fd2b2+X4SEg5vn3l3dn7MdGbeh4bTp0+7IAjkw5UrV+ScE/W2Xm9qaspLrbgFQZDo/WytXmMQBMrn814KjoyMyDlHvW3UqxccV8mqt8NLJQCJRtABAwg6YABBBwwg6IABBB0wgKADBhB0wAC... | [
"rotated",
"translated",
"reflected"
] | null | 1 |
math | grade-2 | read-a-thermometer | false | true | What is the temperature? | "iVBORw0KGgoAAAANSUhEUgAAALkAAAEOCAYAAADVFbYlAAAW3klEQVR4nO3de5QjVZ0H8G+aAQWZ7mr0LDqvrpaHMo9OhSMswzikehR5qamgKyiPJJx11xd0AkfBhTUJB5ZlEZOowCpHuwLqrMjSCeewjgqkwmt0cbdv0zM8xDHVM4NnFZepHlzdnUdq/0hXTfdMuiePyqNv/T7n9Ol0OlO50+fbt2/dur+6HtM0TRDCsSXtfLNcLodisQjGGDRNO+L7giBAkiT4/X4oigJJktrZPMIpT6t7cl3XkUwmkcvlYBgGAGDDeX6sGRrC23r... | [
"90°F",
"55°F",
"80°F",
"85°F"
] | null | 2 |
math | grade-2 | match-analog-and-digital-clocks | true | true | Look at the analog clock: Which digital clock shows the same time? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABaA0lEQVR4nO3de1yUZfo/8A+IAzKMB4aDQ6UDKmgybYUFeEQpbUuw0krpt0e13drdZHc7bLBbW7vYeRfqW9uuutseQtu0EuwgiYGaYEmnQQ3MYbQaHGQ8DYMwcvj9wc7EwBzuOTEcPu/Xy5fMzP08z53NvLjmfq77uoK6u7u7QUREREREPhEc6AkQEREREQ0nDLCJiIiIiHyIATYRERERkQ8xwCYiIiIi8iEG2EREREREPhQS6AlQ4F0wd6K1vQOmto6ev9t7/g4ZFQx... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA5oAAAEJCAYAAAD1mFhPAABkwElEQVR4nO3de1zUVf4/8BeIAzKMF4aLQ6kDKmTMtBUWYKUopW0JVpoX+u2l1HZrL9Bul13crbTVartBbX13V91tb6illWBbkhhoAZZ0G9DAGsa0wUFGhWFQhtvvD3YmBpmZz9wHeD0fDx7O5ZzzeYszNe8557xPUF9fXx+IiIiIiMgjgoKC/B0Ckd8F+zsAIiIiIiIiGlmYaBIREREREZFHMdEkIiIiIiIij2KiSURERERERB7FRJOIiIiIiIg8KsTfAZD/nTf... | 1 |
math | grade-8 | describe-a-sequence-of-transformations | false | true | What combination of transformations is shown below? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEyCAYAAADA5Kd8AAAoJUlEQVR4nO3deXiU9bn/8U8m+wqyJTMEA1GQJSwhhlXUWntaKVatWK1HcMVawKp1o9rW1qMe6lI34NCiVOVo7RH1h1WggCjIpjgsCgIiaCCZIWwmgYQkk5nn98dkUlEgmckz82Qm79d1ebE9z/e+I5Mrnzzc8/3GGYZhCAAAAIApbFY3AAAAAMSS4wK22+2OeAPUjK2aVtWlZmzVtLIuAACtFRcYEXG73XK5XFb3AwByOBxyuVwqKiqyuhUAAIKWEPiJ3W635Aua0+m... | [
"rotation, then reflection",
"translation, then rotation",
"translation, then reflection",
"rotation, then translation"
] | null | 0 |
math | grade-2 | names-and-values-of-all-coins | false | true | Which coin is this? | "iVBORw0KGgoAAAANSUhEUgAAAPYAAAD2CAYAAADlEnrIAACv4ElEQVR4nOz9XUybZ9Y2DB+9uWNkTGR+Igdi3sltiBUECnpwOiJ0UuSwUfLp/SI1ASqSjU6jyWwMtDOVlWwUlL76poJuJEKdJqYbk9Hc040EFUgqRY8eyAZBNFOCpphHREFEDvhJX36tgG0FY+EI5dtw12Jdpy8bk1/S6ZKQjX3Zvnz5XOf6O9ax3njy5Al+kV/kF/l5yX+86hP4RX6RX+T5y3++6hP4RZ6vRFcj7IIZ0o1v0P8LCwvYuXMnDOnGN/SOS/TYL/J6yhu... | [
"half-dollar",
"nickel",
"quarter",
"penny"
] | null | 0 |
math | grade-6 | model-and-solve-equations-using-algebra-tiles | true | false | Which equation does this set of algebra tiles represent? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJYAAAA2CAYAAAAlHWAMAAAE2klEQVR4nO3dTyh0axwH8O8xCPd9RxndaxY0yr3TW0qh3lmzku7CgtA0JWWUjRRZGBsjWSGymdVIlPwJKVb+LBDNYhbCdUtE952Y/BmDYY7fXYzR1Ws4wzzM1e9TTznnPPP8fpNv5zwpHYmI6McN8Pcl4JEBP4GxsMVKwFcV8HsS8Fs8IP3wEa2df3Rb7DP5rgZidy4DB9p4QP9LIHWMhcsjA9te4J8b4K9LIObcH7jAoWJv8VUVyBAAXMhAjPyfC4y9RTBDtwT... | 3 |
engineer | grade-6 | evaluate-tests-of-engineering-design-solutions | false | true | Which of the following could Bridget and Maria's test show? Bridget and Maria were making batches of concrete for a construction project. To make the concrete, they mixed together dry cement powder, gravel, and water. Then, they checked if each batch was firm enough using a test called a slump test.
They poured some of... | "iVBORw0KGgoAAAANSUhEUgAAAUwAAAE3CAYAAADBi3hdAAEAAElEQVR4nOz9WaxlWXrfif3WsKezz3jnG3NEZmRlVlZWZRWrWGSxSIpFkVWkRKlbVqsBw1PLsP1AD3rpNmwI9osfjAbcj4bdgGEI6EFqyVOLM7pFUqI4VVXWlJVzRkTGeOdzz7THNfhh7XMjIlmkKEFy0YA2cPMOcfPce/de61vf9//+//8nfvmXf9nzb69/e/3b699e/390/Sf/yX/yQ/m5GmD79lfJ8x6HB4+5dHmH7cmAxfwM7yre/N63Wc3OGPQzyuWKs9NjltM... | [
"if a new batch of concrete was firm enough to use",
"if the concrete from each batch took the same amount of time to dry"
] | null | 0 |
math | grade-1 | name-the-two-dimensional-shape | false | true | What shape is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD1CAYAAABqfoLEAAAFDElEQVR4nO3YsQ3CUBAFQX+EqIACaJBSqJECKOJogMDBIkvWTHzBC1e3ZmY2AAAgcTl6AAAAnInABgCAkMAGAICQwAYAgJDABgCAkMAGAICQwAYAgJDABgCAkMAGAIDQde/h+/X55w7Y7fG8b+u2jp4BAPCTDzYAAIQENgAAhAQ2AACEBDYAAIQENgAAhAQ2AACEBDYAAIQENgAAhAQ2AACEBDYAAIQENgAAhAQ2AACEBDYAAIQENgAAhAQ2AACEBDYAAIQENgAAhAQ... | [
"circle",
"triangle",
"rectangle"
] | null | 2 |
science | grade-4 | compare-properties-of-objects | false | true | Which property do these three objects have in common? Select the best answer. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADQCAYAAAByQhWRAACo8klEQVR4nOydeZxkV1n3v+dutfe+d89Mz2Qmk8meQEhCCEsIIIvsqyiKor6+6quiKIuoLC6ogBugooAgKKjsAoEEAiErISHrTGZfet+79qq7nPePc6u6qrp6prtnyUzP+X4+NVPLrVunqm/d+p3n/J7nEVJKCVAsFhkfHyedTuN5HhrNk41lWbS0tNDf3080Gj2tr6WPf83Zhj7+NeczZ/L412g2IkJKKQuFAgcOHGDLli1Eo1Fs236yx6XR4LouxWKRw4cPs2PHjtN... | [
"hard",
"soft",
"yellow"
] | null | 1 |
math | grade-4 | properties-of-three-dimensional-figures | true | false | Terrell saw a 3-dimensional figure that had a round shape, like a ball. Which figure could Terrell have seen? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAIcAAABSCAYAAAB+FMeWAAAV/klEQVR4nO2dfYxdVb33P2ut/XLOnHlppy845WXKpS1vj7QWERvhdrj3iSJFpoVL4ksMbfKEGI3aagpqUDARSRBD9Q9MjEmnxPiH8YkdHwm30eJgHrzgvWIRvN6hIlNBWhBoO9Pzsvd6u3+sfQ4dcS50ZkqN3Z9k95yes/c+a5/z3b/fb/3Wb60R3nt/KIffN2DKgvGUnKZEAnoUrOyCMxIQhzLvfzl5qptV8rfG5b0Q7W+E/wwkcH4tKKfk9GTKwngdDubwdAP... | 0 |
technology | grade | web | false | true | What meaning or function is usually associated with this web interface symbol? | "iVBORw0KGgoAAAANSUhEUgAAAV4AAAEsCAYAAACLwdvQAAAT0klEQVR4nO3dPW8bRxrA8SeHfAIpOMiF21FHQQZkIGlSxEHc2G6GrRsSkJDA6SwVdionBekuRgIJEBu3ZGO7kSCqSBMDFmBDW5nbuhARiPwKvEK3imzrhS8zz8zu/n8AgbtYplai9ddwdnb2i9FoNBIAgJr/hD4AACgbwgsAyggvACgjvACgjPACgDLCCwDKCC8AKCO8AKCM8AKAMsILAMoILwAoI7wAoIzwAoAywgsAyggvACgjvACgjPACgDLCCwDKCC8AKCO8AKC... | [
"Tools/Options",
"Zoom out",
"Image crop",
"Like something"
] | null | 0 |
math | grade-1 | compare-objects-length-and-height | true | false |
Which arrow is the shortest? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAASQAAABHCAYAAACu7jqsAAAWMElEQVR4nO2de3iU1Z3HP+87k5lMMpncL4ThInINUgKuJRLYyq6WqNgKQbslkihbtVIVfERbH2m7tepa3VbEelmsVLBUV4RttSpgXbXgvQKKBEwI1yRMLuQymWQmM5nM/vHOO5nJzOQ6yUz1fJ7nfZKc97xnTt4HvvndzjmSx+PxWJxwrAPa3NDlQSAQCEYFrQRJGpiSANk6kCydHs/H1mhPSyAQfN2ZZwJtZYfywxgdTEtU1EogEAhGgzY3fNkOZ51Q0QGytUu... | 1 |
math | algebra-2 | outliers-in-scatter-plots | true | false | The three scatter plots below show the same data set. Choose the scatter plot in which the outlier is highlighted. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAU4AAAFGCAYAAAAFAHYEAAArVElEQVR4nO3df1xUdb4/8NfMyDDAMMgsP24aP24NemEjSxQiobJysh97763VxG66BdUaXX9sPWr1fuvKmuveWc27mZr62I3bdi+lWe66ey23R6txFxGGdfWqQwVcR0hbGBwFBzjMAOf7BzExMIMenDPMwOu5j8fCec+Z8/kM4KvP+flRiKIo/tUJ1HcCl3uBHhFERDTIJAUQrQLSIoFENaD4a7coVrePdbeIiEJDjg6YVNfZv3CdGpge1Z+qRET0rcu9wBcdwNd... | 1 |
technology | grade | photo | false | true | What type of video game console do you see here? | "iVBORw0KGgoAAAANSUhEUgAAAV4AAACcCAYAAAA3fMMRAADN2UlEQVR4nOz9eZhs2VXeCf/2OSfmiIyc5+HOVbfq1jyXSqhUkpCYJDH4M9j9tAymwWZ228bu9vP4s93YrbbdnxuMDQIjGbUxDyBLCAvQBEioVFKVVKrp1nDHvDnPmZGRMcc5Z39/nFg7d5wbt6okBJYgdz23MjPizGfvd6/9rnetpbTWmqN21P4SNK01Sqnrfu/199dyzD/LcY7aUbObOgLeo/ZXpUlX/3oA8I0+O2pH7fU053/0BRy1o/b1agKscVvCBtyvFSjjVm/... | [
"Nintendo 3DS",
"Sony PlayStation 2",
"Nintendo Game Boy",
"Microsoft Xbox"
] | null | 3 |
math | pre-k | cubes | true | false | Which shape is a cube? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAUrUlEQVR4nO2d2XMc1X7Hv6f3nkWSLcsbxmKRMbZlbNlwCakKSdUND1TlVkilKuSFpyQv+R/ymrykKlV5u6m6D6mkErhsxmD7YhMgwA3YF2wwEGwTU8i5kWRp9ulZes/DmTOLNLK19Ewvcz5P8mjcczTznV+f7v6dTxPf9/0lC/ifOlB1AccHhxM5JAJkReBQCtijAGTJ9P0rlbCHxeFsnKfHAOn7Ov3HPgU4nKap5nCiRtUFbtaARQu4VQeEikN/wUPLiTJZkWY... | 2 |
math | algebra-2 | domain-and-range-of-exponential-and-logarithmic-functions | false | true | What is the domain of this logarithmic function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABl6ElEQVR4nO3de3Bc9Z3m/6dvukuWLNmSkZGMMTbIWDYGG2zsGMYEmJAhMdmsSSqTZH/MZpLNhclWzVZ2aiY7M0WxqZnJTIVNstnMZoFspSoJGyBDjAwmGOzI4IuwZVsGI4Sti21dWmpJfT/dfc7vD1nC8gVL5nzdlvv9qqJEt9SPPj6n+/TTR6f7eBzHcQQAAADAFd5sDwAAAABcTSjYAAAAgIso2AAAAICLKNgAJqmtrdWuXbsmLh87dkxz5sxRZ2dnFqcCAGDmoGA... | [
"$\\{x \\mid x \\geq-8\\}$",
"all real numbers",
"$\\{x \\mid x \\leq-8\\}$",
"$\\{x \\mid x>-8\\}$"
] | null | 3 |
math | grade-1 | estimate-to-the-nearest-ten | false | true | How many marbles are there? Estimate. | "iVBORw0KGgoAAAANSUhEUgAAAZYAAADECAYAAAC8yQfeAACadklEQVR4nO39eZhd1XnmDf/W2meoKlWVqqRCs2QkwCCh5GspgDFgx+0Y8dkmOMbQNulO2oF2+ko67jgxsfv198bEZOjEcV8v/dJJp+1A4rivAAm2gzN0jDFOmCzAMTaD0ABGQqUSQ02q4dQZ9lrr++NZa+99TpWkklRSlaR9X8a7zqlSnbP3PrWe9TzPfd+Pcs45cuTIkSNHjjlCYb7fwJmCsYph14EqDkdXe8TGNe3z/ZZy5MiRY16QB5bjxFO7J3joh2M8vrPCaMW... | [
"about 20",
"about 90"
] | null | 0 |
math | grade-1 | certain-probable-unlikely-and-impossible | false | true | If you select a marble without looking, how likely is it that you will pick a black one? | "iVBORw0KGgoAAAANSUhEUgAAASYAAADECAYAAAAyP4znAABeYUlEQVR4nO29eZhU1Z3//zq3tu6u7qYXWqBbaUCQRcQoGFzbr5oIxjgKzqCYkMXJBOM3E5/IN7/g9jgzP3B5TNTJ4pjJLzrRyWi+xiAmM2hGEwNBUehRI2ETZe0G7Kb3rqquuvec3x/n3lu3qruhl+qtqPfzaNW5devecy593vXZP0IppcghhxxyGEUwRnoCOeSQQw7pyBFTDjnkMOqQI6Yccshh1CFHTDnkkMOog3+kJzBa8bvf/Y433niDgwcPcvjwYerq6qirqyM... | [
"probable",
"unlikely",
"impossible",
"certain"
] | null | 0 |
math | grade-8 | identify-alternate-interior-and-alternate-exterior-angles | false | true | \line{JL} and \line{MO} are parallel lines. Which angles are alternate exterior angles? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADSCAYAAABw17dKAAAc2klEQVR4nO3dfWzV9f3+8euc0gIr9o4c5G6UnOLNCthTyl1F1x6NOucNxUy32Y02G4lsiD0w2WSZo47ELWqWQxujmUNOyeyG/NGjiREYyykzCrqe9pTSY5S0K4UOpdhTGu8otP39wa/9grRA23PO59w8H8lJ9HzK+1yanPjqy+tzjmlgYGBAAAAAAILCbHQAAAAAIJYwYAMAAABBxIANAAAABFHMDtjd3d1GRwAAAEAcitkB2+FwqLa2NmTnnz17VklJSXrllVdC9ho... | [
"\\angle{LKI} and \\angle{ONP}",
"\\angle{LKI} and \\angle{ONK}",
"\\angle{LKI} and \\angle{MNK}",
"\\angle{LKI} and \\angle{MNP}"
] | null | 3 |
math | pre-k | fewer-and-more-compare-by-matching | true | false | Which group has fewer? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAASYAAACGCAYAAABwryeAAAAKGUlEQVR4nO3dW2zW9R3H8c/T0tK1tEWstAK2KCJEyMI4lLYzIx4miKDOmLCTxmxoyOKNN8hMjEUxwxu3mF1ooriLjciFiggKIS4UD9CqHNxYwlFKBVp4JD1bSst/F4+Fyvnw/L6/35++X4lBgv5/P96QzwPlsSaiKIoau6U9nVJbr9QTCQBMDUpI+ZnS2FypOFtKNB6PorpW39cCgJTpBdKg3Z2pr9yYLY3LS60WAFhq65V2dkiHu6VdnVJGa0/qGxglAL7kZ6Y... | 0 |
math | algebra-1 | surface-area-and-volume-changes-in-scale | false | true | Look at this rectangular prism: If all three dimensions are quadrupled, then which of the following statements about its surface area will be true? | "iVBORw0KGgoAAAANSUhEUgAAAMoAAACnCAYAAABQD8MsAAAd9ElEQVR4nO3deVTU9f7H8ecwbLKIIO4UimIkFSU3qbj9qLDrrUzTrmaZK+WWC4KkiRsiioKoWaIsgrnvCmrmUpaaKAXusomoCCKbKOKwzff3xwiaaaDylQE+j3M8JzzwfX8O+ZoZ+L7m81FIkiQhCMI/0qntBQhCXVBng1JQUMC4ceNo164dK1asqO3lCPWcoi6+9AoODmbq1Knk5uZW/t1rr73G0qVLcXBwqMWVCfVVnXpG2b9/P/b29owaNYrc3Fw+GP0pXmvm8rz... | [
"The new surface area will be\n1\n4\nof the old surface area.",
"The new surface area will be 16 times the old surface area.",
"The new surface area will be 4 times the old surface area.",
"The new surface area will be 9 times the old surface area."
] | null | 1 |
math | grade-8 | parts-of-three-dimensional-figures | false | true | In the cube shown below, which lines are parallel? J | "iVBORw0KGgoAAAANSUhEUgAAANwAAADdCAYAAADQBhwkAAAemUlEQVR4nO3deVRTZ94H8C8EggiKCZEElcWBI6K1Mi1McaTjKFPxuIx6OIP1uIx4bK24dJnRcavQ1lasXaburaO4tlWrgwWnZU4dpiNYW7WCSy0uBcEFCARR1hB43j8k9yUQQtabm+T3OSen8RKe+1yab+5zn+e5T9wYYwyEEF6427sChLgSChwhPKLAEcIjChwhPKLAEcIjChwhPKLAEbNs27YNbm5uOHToEACgtLQU/v7+iIiIwKNHj+xcO+GiwBGLaTQaPP/882h... | [
"KL\n and \nNQ",
"KO\n and \nNQ",
"LP\n and \nNQ",
"NO\n and \nMQ"
] | null | 0 |
math | grade-3 | read-a-thermometer | false | true | What is the temperature? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEOCAYAAACzXGCqAAAbHUlEQVR4nO3db2wb+Z3f8Y9k2dnofNHgoMvFQE8en584xab+2SmaAHXAEQrsPui1Igv0UZCKLLAFiqIl2TwKigOHd2j3QXGg2KIoUAMnqmie9AlH/fMgAVoOL86DpDjtLJLDugVyO1baGkjV9qfEVbyWLfWBIMY0vbsm+RNJed6vR5rvDGe+fvbxF7/5zdzx8fGxAAAAADgxP+0GAAAAgNfJwjQemqap0jRVHMd9dd/35fu+giCYRlsAAADA2OYmtUQkSRJtbW0piiI... | [
"5°F",
"10°F",
"15°F",
"0°F"
] | null | 1 |
math | algebra-1 | write-compound-inequalities-from-graphs | false | true | What compound inequality describes this graph? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAALLElEQVR4nO3dbUyT5x4G8KtQYOAm4BCBydjYi9tQORHl5SAoH0Zc3BQwCM04k7hsmi3ZS9RglmUHDS5bpnMyYxiZWxcXs0GI7M0XEmbbDY6lgljhhExNkLJlnjJB5rQtZT0fSDtZW6BQe/cp1++L9oYP1z/QcnHzPHdlNpvNhgBy9OhRyGQyKBQK0VFmhHP4F87hXwJlDiIiCkxy0QG8zWAwiI7gFZzDv3AO/xIocxARUWCacsEeGRlBe3s7tFotYmNjuXNEE2rqVqK... | [
"$-5<x<-4$",
"$-5 \\leq x \\leq-4$",
"$-5 \\leq x<-4$",
"$-5<x \\leq-4$"
] | null | 3 |
math | grade-2 | am-or-pm | false | true | Patrick is taking his new puppy for an afternoon walk. Patrick's watch shows: What time is it? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABaCAYAAACCNCH/AAAGqklEQVR4nO3dz2/bdx3H8XdLUBpAtZGo2LShSoAQDMnfnShCa3dZGw4cOMHFzgGawU4INc4f0faAkHbJKiHFvlAOoGwXB4kfRWJsBzZHIDFABY8BqzYgDmgrtMUcSqpulZ3E/dhf++vHQ6rUxHH0Uk5PffX5+nuo1+v1AgAASOJw3gMAAKBIBDYAACQksAEAICGBDQAACQlsAABISGADAEBCAhsAABKa2/dP/umliFd+HHHrxgjnMNXeuxDxqSciHnwk7yUAALk5tOe... | [
"1:15 A.M.",
"1:15 P.M."
] | null | 1 |
science | grade-3 | identify-rocks-using-properties | true | false | Select the one substance that is not a rock. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANcAAAEYCAYAAADPtGNgAAEAAElEQVR4nOz9d5Ql93neiX/qVtXNOd/OeTpMzgkZIAFGWZRM7bEly7Jl7sq/XVmyZXt9vD4+9sryes+xLVuyFda0SAWKAkmRBEhkDAYYTJ6e6Zxzvjmnqrr1+6N6LgAGW6IEkgLnOafR3bd70Lf71lPf7/d9n/d5hFs5XT/gAJfIAzzAA3wPKGgwV4KdOvgkuOg1Hjc9INYDPMBfDC4RDjiMj4vaO4+bHhDrAR7gL477PFL0dx4z/WCeygM8wAcfD8j1AA/wPuE... | 2 |
math | grade-2 | correct-amount-of-change | false | true | You pay 50¢ to buy a cherry popsicle costing 43¢. You receive the following change:Is this the correct amount of change? | "iVBORw0KGgoAAAANSUhEUgAAAlcAAABECAYAAACs5hCYAABHoklEQVR4nO3dd3Dd533n+/evnt6Ac9ArAZAg2HsnRUlWsaTIjlxiZxWvI5fdm10n184mzvhOymySPzLZOOOJx5OsneK7cbdpNasXFrH3ikKi1wPg4OD0X79/gDgSY8kmKcrOjX+vGQzLAOB5fsTM+c7z/TzfR3Acx8HlcrlcLpfLdUeIv+wX4HK5XC6Xy/UfiVtcuVwul8vlct1BbnHlcrlcLpfLdQe5xZXL5XK5XC7XHST/ov4hy7LIZDLk83kymQyZTIZCoYBlWUx... | [
"yes",
"no"
] | null | 0 |
math | grade-5 | angles-of-90-180-270-and-360-degrees | false | true | What is the measurement of this angle? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAAaCAYAAACNbCuTAAAEU0lEQVR4nO3dT0gbZhjH8V/KDoqxh7QXjeth06CiuG7MbRQi25R10kGll+n+HCxls2UrXYtuw1hmSouxUGxxDmrtWobOiyvb2Cyxg+TkEEuLoiNKD8OoMBYhSUkva3ZI2iUziX/mNKnfzzG8eXhy++Xled/XEA6HwwIAAACwIXZsdQMAAADAk4SADQAAAGygp1ZaEPCH5B6ZlGfKq5lprzxTXuXuzFZRqVmWErOs1WWylJo3o1cAAAAg7RlSzWCPj87qTMuAFry+lEW... | [
"360°",
"180°",
"270°",
"90°"
] | null | 0 |
math | grade-3 | which-picture-shows-more | true | false | Which is more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAlYAAAFmCAYAAACvN9QvAAEAAElEQVR4nOz9PYwkS5bvif3e24eFBYklzAACdKNUJhCEp+ZBgchYqWK0aFDJWqmSUmdr2VoVpVsjTV2JdbWb2mRLkyWxUiBxQ3tR0kYAFMK1dPADsNLcARIwwy65blzuw1A45h+RVbd7eqbx5nUxDlAVGREe/mGf5/zP/5zzb/7xH//xH7v/Hv7v/x38t/8B/od/5CxnOctZznKWs5zlLP8E+Xf/Bv6L/wz+F/8j+J/95/Bvuv/PP/7j//m/+de+rbOc5SxnOct... | 1 |
science | grade-5 | identify-earths-land-features-using-satellite-images | true | false | A delta is a nearly flat area of land that forms where a river meets a larger body of water. A delta is made from rock and soil that is carried downstream by the river. Sometimes, deltas are shaped like triangles. Select the delta. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOEAAAC0CAYAAABi8Es+AAD4JklEQVR4nOz9ya8sW5beif3W7qxx99Pd7rUR8aLJiAwyGyabUqlAQCoCgjRQQYAmBWhcgEYaFKSJ/gRJUGkoaCRAmpYmKkiQCmJTRRZJkZEks1KZkcGM7nX3vtucxjsz260G293Pueede999L1qyagMHpzM3Mzffa6+9vvWtb0nXLgq/pUMpi6C/4KhCLoFS8p3/FRGUUq9+dSmH4+56rYhQSjkc9wV3jGDQ+vqeRRVECiJCzvUef//3fodvffBNnDnm6uqCf/G... | 1 |
math | grade-3 | identify-two-dimensional-shapes | false | true | What shape is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADUCAYAAACmjlRXAAAOzUlEQVR4nO3dXW8UV7aA4dW2G+hzhkwGNEgWg3EGMgoRCBRrRsrV/H6CrViyBW0cjIiRjEDYF8Zpd7vbdS4SzpAPGH9U1a5d/TxSbtJSspGw/Hp51a5OURRFAAAApZhJfQAAAGgTgQ0AACUS2AAAUCKBDQAAJRLYAABQIoENAAAlEtgAAFAigQ0AACUS2AAAUKK51AeAJiiKiKOjIo6OIkajIsbjIkaj4pd/V/z/Z0dHxUc+//Vn//73/8atW93UfywAIAGBTbbex/C... | [
"triangle",
"hexagon"
] | null | 1 |
math | grade-1 | which-table-is-correct | true | true | Pedro saw the following items in the garage:He wanted to know how many of each item there were, so he made a table of the items he saw. Which is his table? | "iVBORw0KGgoAAAANSUhEUgAAAOAAAACWCAYAAADHVoQ9AAAUg0lEQVR4nO3da4xc513H8e95zv3MfWd3vV7Pen2Nr7nZsd2UQAgUGlCpqARSJRBIgJC4CQQvikCQICEQIFDFC0Ag3iBeoJYiNUVNoDRViGmKU9sJjl3fL7trr/c6uzOzczs3Xkxsb51QNununJ3d/0eyZK9Wc57nxc/PmXP+/+fRXnzxxRghRCIMgBdeeCHpcQixKamkByDEZiYBFCJBEkAhEiQBFCJBEkCRmMCP8dth0sNIlJH0AMTm02wEfO1L85x8tUyrBbv2O3z... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAhcAAACdCAYAAAAHbVrfAAA5rUlEQVR4nO3deXiU9b3//+e9zj6TZLIREhLCvgkCgiAWFQS1ti7tae3p6Tm29qrtt7Zql8u21oO29tfLHree2lNr11Ntr1O1tWgVXAAVFGVHFtnCloSQdZKZZNb7nvv3x0iUgmI1MFnej+viAmaG+/58JuTOaz6fz/3+KICDECIvHMfhaBr2xSFmgyXfjUKIAUhXIKDBGC+UmaAg4UKIvDmaclgXzXcrhBCi78wOgp7vRggxlO2N534fZsI4Xy75CyHEQBOzYXc... | 1 |
math | grade-6 | classify-rational-numbers-using-a-diagram | false | true | Use the diagram to help you answer the question below. Which of the following is an integer but not a whole number? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEuCAYAAAC08GWcAACIM0lEQVR4nOzdd3xT9frA8U920r1bNh1syl4KCIiKIioIOMCJV68D97perxv159bruO4BqCiggKIiqOyN7F0oo0D3TJNmnt8fpw0gW9pm9Hm/Xn0lTdLkm7Q95znPeb7PV6MoioIQDUiezcvBSg/FVV4qXQo2txe7W8HmUrC5FfV69fe+6zW3u7zHuU2hwqX+G4XrNZj1Gsw6DWY9WHzXD1/+9TZL9W3RJi0xJg2xJi2xZi0xJi2xJvUyyqjx86cmhBBCiNOlkQBbhIr... | [
"25.6",
"176",
"–140",
"58"
] | null | 2 |
math | grade-5 | acute-obtuse-and-right-triangles | false | true | What kind of triangle is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACqCAYAAACXpjjmAAAVfElEQVR4nO3df1TUdb7H8Re/lN+oKCK4kfxsyHFpLQtKdFO7sntjW2mr7ZfreuyX5qZpqalp6XH7pW6t1bbVmmue7N44d/PcE6fiZlhoskVFRS3Gvdy75DAIISBOOMzcPwq0Yogf35nvAM/HOZ0zHZ35vr//Pf2e93wmwO12uwUAAADAEIFmDwAAAAAMJQQ2AAAAYCACGwAAADAQgQ0AAAAYiMAGAAAADERgAwAAAAYisAEAAAADEdgAAACAgQhsAAAAwEAENgAAAGA... | [
"right",
"obtuse",
"acute"
] | null | 2 |
math | grade-4 | what-decimal-number-is-illustrated | false | true | What decimal number is illustrated? | "iVBORw0KGgoAAAANSUhEUgAAAKQAAACkCAYAAAAZtYVBAAACb0lEQVR4nO3bsU0DURRFwQVRESVQASktUBAtkFIBJdCSSQlYLLRi/3liJrT1JAdHXwSXm8vlctkg4nb1D4CvBEmKIEkRJCmCJOXupy/vn9/P+h38Mx8vD99+vvtCipEVfnwht23bnh6/L/ma17d3t7+43Xsxrrl/nnV77aHzNyQpgiRFkKQIkhRBkiJIUgRJiiBJESQpgiRFkKQIkhRBknKz91+H5mf8pb2lkPlZ5HbShOzIrfkZowiSFEGSIkhSBEmKIEkRJCmCJEW... | [
"0.66",
"0.56",
"0.67",
"0.58"
] | null | 1 |
math | kindergarten | circles | true | false | Which shape is a circle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACbCAYAAACao4KyAAAMkElEQVR4nO2d+1MTVxvHv7vZ3BMICSgRjKIgiC2K4rWj805LtUpHO850Wqf/Xjt1/KVqrbWOrRbH2mpF7dQoAl6435IAIbfdTfb9IeLYztv6Zu+X5zPDICI5Z8yH55zznOecZSRJkmZ5YDQPZMuAKIEgFMMxQNgFdASA9R6AmS1J0p0Vo7tF2Jn9dQA3kq9+EfcAncGqhQShlGwZGM4BMzzwNA+wK2L1GyQZoSZhV9UpAFgtA2z5jW8QhJqsOSVIAGtsVwinQKI... | 0 |
math | grade-3 | identify-three-dimensional-shapes | false | true | What shape is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEbCAYAAADgR/OCAAAmFUlEQVR4nO3deZAkZ3nn8d+bmVV9TE/39DGjGc0IIYQGI6ELzYgRNkJICxIWAmFgAdmLjM3hXe86TGwQbDisdYRN2Nj+A4VjN7wYcQqwwkIYEAOIQwYJYkYjIdCNNEgaSXNPH9NzdHcdme/+Ud09VX1NVXZlv1WZ30+EoquzsjKfLk12P/nW+z6PsdZaAQAAAGgKz3UAAAAAQJqQYAMAAABNRIINAAAANBEJNgAAANBEJNgAAABAE5FgAwAAAE1Egg0AAAA0EQk2AAA... | [
"cube",
"pyramid"
] | null | 0 |
science | grade-2 | identify-mammals-birds-fish-reptiles-and-amphibians | true | true | Mammals have hair or fur and feed their young milk. A giraffe is an example of a mammal. Select the mammal below. | "iVBORw0KGgoAAAANSUhEUgAAAtMAAADMCAYAAACx6y9WAAEAAElEQVR4nOydd3wc1bm/nzMzu6veZclyt2XLvRsbV0xxw8Y0U01PICT0FEghhHAvubkhhISSUEMP4NBMdQPcjXvv3ZaLJKuX1e7MOb8/ZrtWsjEKzu9mHj7+WJo9c+bMmfHynXe+532FUkqZpomUEgcHBwcHBwcHBweHk6NpGoZhIPx+v3KEtIODg4ODg4ODg8M3Q9M0NEdIOzg4ODg4ODg4OHxzpJRoZ3oQDg4ODg4ODg4ODv+/4ohpBwcHBwcHBwcHh9PEEdMODg4... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA4IAAADMCAYAAAAmsx3gAAEAAElEQVR4nOy9d5glR3nv/3mrqrvPOZM2aqVVQAkJZAWCRBIIREaIKIEJMljCBpNssI3BAXMx/sG1CQ4EI5IJApO5JGMkY1uAZKGA4BJ0ESCEUFhtmnBSd1d4f3/0zuzM7MzuSiwI2+fzPPPsTHd1dVV1n7P97TeJqmoIgZQSI0aMGDFixIgRI0aM2DfGGJxzXD0Hx4/BhL2rRzRixMp0I/ygD7fVsNbBg9c0281IBI4YMWLEiBEjRowYccdIKRFCGInAEb/yTNj... | 1 |
science | grade-6 | use-scientific-names-to-classify-organisms | true | true | This organism is a blue jay. Its scientific name is Cyanocitta cristata. Select the organism in the same species as the blue jay. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADMCAYAAAAGVtdxAAEAAElEQVR4nOy9d5xkZZX//z7neW5V90SGGXKSnKMgCIoiYgBUFAyIAVB3TbtmRf36cxXXhOuuawSFxYQoZlwVBEyIMAiuBBEkZ4YhzUzPdNW9zzm/P87tkoEhiL26y963L3Znuqur7r11q+c85/mcz0fc3Zumwczo6Ojo6Ojo6OjoeLSiquSc/9aH8d+OdsV9R0dHR0dHR0fH/wXMjKZp/taH8d+OdsV9R0dHR0dHR0fH/xX+L9S++rc+gI6Ojo6Ojo6Ojo6O6aMr8Ds... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA6IAAADMCAYAAABp7h4wAAEAAElEQVR4nOy9eZwdVZ3+//6cU1X33t73Tjr7nkAgYQk7KAKCbILgwqIsyoyOjjuK+PWniOOG46ioI6jIOIg4gIooQgSUHQJhSVizJ53ubL1vd6k65/z+ONVXAgECMjrj3Of16le6761bdWq7qec8z+f5iHPOJUmCtZYKKqigggoqqKCCCir4e4VSiiAI/tbD+G+HiPyth1BBBa8IVSGhFVRQQQUVVFBBBRX8X4C1liRJ/tbDqKCCCoCgQkIrqKCCCiqooIIKKvi... | 0 |
math | grade-8 | identify-linear-and-nonlinear-functions-tables | false | true | The table shows a function. Is the function linear or nonlinear? | "iVBORw0KGgoAAAANSUhEUgAAAFQAAABeCAYAAAC98DOnAAAHRklEQVR4nO2cX0iT3x/H385vepFlWUEr0s10GdNiK5Vi9meTgoaY4K/oqgvpj2GGLkZ040UlaMaiP8NhrkzDKIqg+qWDLoYjRkFmVBcRLTMxhoVMqUTn+V7Ehvt+LfccP4/LL+cFXnie8zyfN2/PebbnOW8Pbj3sZHOBuaJTAQEpwlBihKHECEOJEYYSIwwlRhhKDLehwWAQDQ0NUKvVcDqdUx5vamqC0WhEVlYWjEYjGhsbEQwGZyRYqsZoNFy9ehVbt27FmjVrUFh... | [
"nonlinear",
"linear"
] | null | 1 |
math | grade-6 | front-side-and-top-view | true | true | If you look at this object from the front, what will you see? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADzCAYAAAC8J2HZAAAgtUlEQVR4nO3dfXTU5Z338c8kk+dAJhokCJJJhdtJt0gSFMECmeBdQO+6JHZraWtlqEcLtcckdT1HaC3Dioue3ZKJPW3pKUrU1iKn20S321Jqm1HwmC3VDMWWyFIzCDQgDw7k+Wnm/iNm1jQk5OE3mUzm/fqHOvObaz7afz5c5zvXZQoEAgEBAAAAMERMuAMAAAAAkwkFGwAAADAQBRsAAAAwEAUbAAAAMBAFG/14vV4VFhYqPT1dFRUV4Y4DAAAQcUycIgJJ8vl8qqi... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAygAAADzCAYAAABt5TKAAAAitUlEQVR4nO3df3TU9Z3v8dckk9+BTDRIECSTFtZht0CCVaEFMqG3Eb11CXavpa2VoR4t1J4m0W2P0FqGKy56emsGe9rSU5RoW4sc10S3Wym1zShYU6lmLLZBRDMgNKCAQ37/mB/3j5hZ05CQZGYyM5nn4xxP6mTmkxfRP3z18/5+PoZAIBAQAAAAgLAwGAzRjhDXkqIdAAAAAAAGUFAAAAAAxAwKCgAAAICYQUEBAAAAEDMoKBjE7XartLRUubm52r59e7TjAAA... | 0 |
math | grade-4 | nets-of-three-dimensional-figures | true | true | Which net will make this figure? | "iVBORw0KGgoAAAANSUhEUgAAAGQAAABkCAYAAABw4pVUAAAQcElEQVR4nO2dfVzNd//Hn93fUbnLCleJCqWuciUmcjN3c1dma2NDy8+uKxvH2NxzyEZMwsVlEg374XL1UxtyM5NtEdYcKY8S7Vhilep0r9vv9UdzfjLdnXPUKef5ePgj5/N5f96nV5/35+b9+Xy/WoIgCGhQG7Rb2gENtdEIomZoBFEzNIKoGRpB1AyNIGqGRhA1QyOICvj666957bXXOH36tPLGBA0Kk5iYKHh6egqAAAjdu3dX2qZGEAXIzc0VAgIC5ELoG5sJ+ka... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUkAAADlCAYAAADeIwWJAAAXvUlEQVR4nO3deVyVZd7H8c8BccMtF0zTUAQ0IddRcLQ0s9wXyrJyGuWF05PSIk6lZY34VJa2uJRMkxtjNuI0FmbuG85ogY6JCz4ogphb4YYiKOt5/sBDkngrcOA+wPf9z3l15Fz378TrfLnuc1/X77YAVsRhWK1Wfs6CoxmQlgs5+u2IlKtqFqjrDF61oWl1sKCQdCg/Z1rZddnsKkQEwK8eVDO7CCksISP/sVl1aOua/xdNRMpPWi4cToczWXAkA5zMLkgKu5y... | 1 |
math | grade-2 | estimate-to-the-nearest-ten | false | true | How many marbles are there? Estimate. | "iVBORw0KGgoAAAANSUhEUgAAAZ8AAAEVCAYAAAA/yegqAAD3gElEQVR4nOz9e5Acx3Xni3+yqmd6egYYzAsDEm9QAAniRUiQZL4kStQlLRvwrjd+pqUFtfJ1hO+SoHx/u3cjHCZtR1zF9UaQiti7oYi1RVgbsT+LMqnQa0P+/SBRurIoe0mToLQiiScBAiSEwQAk5gV0z0y/K/P3R2ZWZVX3vB8YAH0igJrq6emurMo853zPOfk9QimlaEhDGtKQhjRkESV1rS+gIQsj2VLAscECAO1pn10rM9f4ihrSkIY0JJKG8blB5JX+MX74bpb... | [
"about 80",
"about 40"
] | null | 1 |
math | grade-3 | choose-the-appropriate-measuring-tool | true | false | Which tool would you use to find out the length of a rug? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJYAAACnCAYAAADzJ6XqAAAYcElEQVR4nO2dfXATx93Hv5Ilg1+wTuAYCC+WiRNoSOojeWiB5sFyS1ueThJEHpLmybRjOZOmLU1qQSedZqYDog+d9CVPrDRJZ0hIOAc6QCiJDDQkkxCLPE/NhBCQa5qXxg5nIGDAsU9GEliWtM8f4o6TLJ1OwSfL1n5mGKzV73b37r7a3fv9dvd0hBDSEwI6g8DFCBAmoFAyxqADJhUANxYDUwsBXc8gIYcHRrtalPHE18sAw6fB2IfphcDckpjqKJRMuRgBPgk... | 1 |
science | grade-5 | compare-magnitudes-of-magnetic-forces | false | true | Think about the magnetic force between the magnets in each pair. Which of the following statements is true? The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different sizes. | "iVBORw0KGgoAAAANSUhEUgAAAksAAACtCAYAAACgPzu0AAAyg0lEQVR4nO3dd3gU1foH8O9sz+6mkl5IIIVA6KGLIFVAUC4QUEC9KIhelGtBrr1cvCrYrqIigqCIICKIqGBBQKr0hJ5CSU9ISM/22f39kR+5IMlmN5ndmdl9P8/Do9nsznk3e/bMO+ecOYex2Ww2EEIIIYSQJkn4DoAQQgghRMgoWRKx9PR0MAxzwz+FQoHk5GQ888wzqKurc+p4U6ZMwciRI1sVy6lTp5CcnIyAgIBWvZ4Q4hkmTpx4U7sUEhKCESNGYM+ePU4d6/T... | [
"The magnitude of the magnetic force is greater in Pair 2.",
"The magnitude of the magnetic force is greater in Pair 1.",
"The magnitude of the magnetic force is the same in both pairs."
] | null | 0 |
math | grade-2 | write-subtraction-sentences-to-describe-pictures-up-to-two-digits | false | true | Which subtraction sentence does the picture show? | "iVBORw0KGgoAAAANSUhEUgAAAfQAAAGQCAYAAABYs5LGAABGDElEQVR4nO3da3Ab553v+V+jceMNFEWLNH3RiSzLtmJb40viWHIm441jp0a5jTOpoXY0k1GSTZUq49QmsZNyuU6qtHFVzjo569SmaisX2efIOVYS5TiWFJ84WdmuODWJ6JE30rEoS7Z1SUTbIkGJF5AAGkB3P8++gEAAxK0b6Aabrd/njQiQ3Xi+QjX/BNEAFSmlBBERES1rgaVeABEREbWOA52IiMgHONCJiIh8gAOdiIjIBzjQiYiIfIADnYiIyAc40ImIiHyAA52... | [
"73 − 9 = 64",
"71 − 8 = 63",
"72 − 7 = 65",
"72 − 8 = 64"
] | null | 3 |
science | grade-2 | identify-mammals-birds-fish-reptiles-and-amphibians | true | true | Birds have feathers, two wings, and a beak. A barn owl is an example of a bird. Select the bird below. | "iVBORw0KGgoAAAANSUhEUgAAAtMAAADMCAYAAACx6y9WAAD4iUlEQVR4nOy9d5wlVZn//z6nqm7svp2ne3pyjszAwJAGkCACKggIEmQNuIqZIBgXd1n2q+6CoIIJ1BUJi7KLKIgSROKQZhiGSUyO3dM53Ns3VdU55/dH1b0zAwMMMC7uz3rzaqbvvRXPrap+6qnP83mEMcb4vo/WmoiIiIiIiIiIiIiIN0ZKiW3bCM/zTBRIR0RERERERERERLw5pJTIKJCOiIiIiIiIiIiIePNorZHv9EZERERERERERERE/F8lCqYjIiIiIiIiIiI... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA4IAAADMCAYAAAAmsx3gAAEAAElEQVR4nOz9d5hkR33vj7+qTu7cPXlmZ7N2FVarjCICiSQRhADJIIJBwuY6EG0wxr5gc2X7h026gLk2YLAxBoPxBRNMThJaSSitVmm1q82zk1PnPqmqfn/07CCBhBYjA9/vt1/PM88zffp0VZ3qOqfP+3ySMMaYNE3RWtOjR48ePXr06NGjR4/HR0qJbdvcUYetWchbv+oR9ejx6DQU7GnBdAxlGy4qdbfLngjs0aNHjx49evTo0ePnQ2tNmqY9Edjj15681X1... | 1 |
science | grade-4 | animal-adaptations-skins-and-body-coverings | true | true | Musk oxen live in the Canadian Arctic and Greenland. The musk ox's skin is adapted to help the animal survive in cold places. Which animal's skin is also adapted for survival in cold places? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEKCAYAAABnkCFsAAEAAElEQVR4nOz9d4BcVf34/z+n9z47OzPba7ItZdN7gRBCIAQIXUFBURGlWFA+NsSCYnkLggKCdClSAwESQnrPpu5utvc2Zaf3+vsjX/IhEjBggPfH3zz+2r1z7rl3zr137mvOfZ0zgmw2m02lUmQyGXJycnJycnJycnJy/t8kFAoRi8UIkslkNhfc5+Tk5OTk5OTk5Py/TygUIswF9zk5OTk5OTk5OTn/HTKZDMLPeydycnJycnJycnJycs6cXICfk5OTk5OTk5OT818... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA88AAAEKCAYAAAAsMWftAAEAAElEQVR4nOy9ebxeVX3v/15rT8/8nHmeck7mkQTCFGZEQBQRUATrRO/lVosVa6u19Wqp1tqLVq8UWutQVMAZpCrzTAgECEnIPCcnJznz8Mx7XPv3xz45EgGNGEtvf8/79eJFnn32Xnvttfd6nv1Z30mEYRj6vo9SiipVqlSpUqVKlSpVqvy/iZQSXdcRQrzRXalS5b8lsiqcq1SpUqVKlSpVqlT5fx+lFL7vv9HdqFLlvy2yKpyrVKlSpUqVKlWqVPnvQfXdvkq... | 0 |
math | grade-5 | identify-parallelograms | false | true | Is this quadrilateral a parallelogram? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADzCAYAAAC8J2HZAAAjJ0lEQVR4nO3deXyU9bn38e89c89MloEkYNiXIAJBRFSKYG1xoVp6ekTcsXv11FNtj4/HPtUKWpcKtrXbae1pH/tUbT2t+97FXXBDqqBIkQiybwJCQpgks9xz3+ePSeYOkcBMmMlsn/dfMzqR30tnXl5z5fpdX8NxHEcAAAAAMsKT6wMAAAAAxYQCGwAAAMggCmwAAAAggyiwAQAAgAyiwAYAAAAyiAIbAAAAyCAKbAAAACCDzFwfAPlt5RZbdzzbKsuRfndpMNfHAQA... | [
"no",
"yes"
] | null | 0 |
math | algebra-1 | write-compound-inequalities-from-graphs | false | true | What compound inequality describes this graph? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAPiUlEQVR4nO3de1DU9b/H8edyF1DQUIEUyDFRUklBgRBSO5XlFciUcoqjY9pF/XX76TSdjpl6umqpNQ7jhfr1czxwAH+amvHDACUlRERRQbogUkkSIAGHXVb2/AHsEbnIZX9897u+HzPNtp9lnNd74Lv7/n6+n/18NQaDwYAF2bNnDxqNhujoaKWj9IrUYV6kDvMidZgXqcO8WEodQqiZjdIBTO3KlStKRzAJqcO8SB3mReowL1KHebGUOoRQsy432A0NDeTk5FCc+nc... | [
"$-7 \\leq x \\leq-2$",
"$x \\leq-7$ or $x>-2$",
"$x \\leq-7$ or $x \\geq-2$",
"$-7 \\leq x<-2$"
] | null | 1 |
math | pre-k | fewer-more-and-same | false | true | Are there the same number of paint cups and paintbrushes? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEECAYAAAASx0PMAAA9mElEQVR4nO3dZ5xkV33m8d+5Fbs65zTTk3NQGgk0AuWABFgEiWQwEhgDxlgC1mEx9toseI3Xa8ALDmsw0V7AIC2KICEkIRQYSaPJOU9Pd0/nrq4c7tkX1d3TM5oZTajuqup5vv5Y0119695T9bw4f8499xxjrbWIiIiIiEheOIVugIiIiIjITKICW0REREQkj1Rgi4iIiIjkkQpsEREREZE8UoEtIiIiIpJHKrBFRERERPJIBbaIiIiISB6pwBYRERERySMV2CIiIiI... | [
"no",
"yes"
] | null | 0 |
science | grade-7 | compare-magnitudes-of-magnetic-forces | false | true | Think about the magnetic force between the magnets in each pair. Which of the following statements is true? The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different sizes and shapes. | "iVBORw0KGgoAAAANSUhEUgAAAksAAACtCAYAAACgPzu0AAAtfklEQVR4nO3deXhU5fn/8fcsSSYkEBIWkxASSoKEIIqyiVjZVMBqiyLYKi60WCkUbC21+BNb/Yqt2loFVLAoVARBLWLVWquIiuICIptssiUsCWsSICGTzPb74zQpCGSdmTPL53Vdc5VMZs65x55zcs/z3Od+LD6fz4eIiIiInJXV7ABEREREQpmSJRER8Zvhw4djsVhOe7Rp04bBgwezYsWKBm3rm2++wWKx8OmnnzbofR6Ph7/+9a907dqVhIQEcnNzefzxx/F4PA3... | [
"The magnitude of the magnetic force is smaller in Pair 1.",
"The magnitude of the magnetic force is smaller in Pair 2.",
"The magnitude of the magnetic force is the same in both pairs."
] | null | 0 |
math | pre-k | one-less-with-pictures-up-to-10 | true | true | Count the dots in this group. Which group has one less than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFACAYAAACGDgu2AAAfMklEQVR4nO3dbaxdZZk38GuffXbPOd2noS0ttZGXvtAighGpKaFWQG00AaMfDFWSxviQzGBi/KBO/DJGTRQDHzTayEScBCc2g3mUjAwkCh1LkDZ16gBGMhXaUmwLlAJ90fS8v+z9fJAzDzoFTtu1973u1d8vafrt7Gv9S1j/c69736vWbrfbAQAAFKIn9QAAAFAlCjYAABRIwQYAgAIp2AAAUCAFGwAACqRgAwBAgRRsAAAokIINAAAFUrABAKBACjYAABRIwQYAgAI... | null | [
"iVBORw0KGgoAAAANSUhEUgAABDAAAAFYCAYAAAClCwyGAAA12UlEQVR4nO3dW3Bc1Z3v8V93q9WSumXLsmzZXHyRbzg4BcEqG4S5JHGSSmwCecBMzogJYQoDIZByCHkZavIQnBwyqUnhgUzMcAuaY6YgNQmYU4VdmCG2RxkzY/tAxbEtY/ANX7AkA2pJfd/nQQhIkNuytbvXWru/nypXv1Ct//5JarR+e+29Q5I8AQAAAPCF53k6npHeHJD68lKOv7YB4JxUhaT6iDSnTmqulkKiwAAAAAB8czzt6bUPTE8BAMGyeJxUZXoIAAA... | 1 |
math | grade-1 | subtraction-sentences-using-number-lines-up-to-10 | false | true | Which subtraction sentence does this model show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABhCAYAAADsidaRAAAWUklEQVR4nO3de1BTZ94H8G+4SREIqKCyS4nYAaul4KUCul3UjtZuL2pbqXacQrvWrt2OW93XsbbdqbbsarfbVqfudGr7zlrb4qhYsLbr6IxK8F2uIugqo27FgDTgGjA03IRI3j+OJ+GikuCBc+H7mWGSnGTi76fB881znvMcncPhcICIiIiIiCThJXcBRERERERawoBNJKNmO/BDNbDsKOD7ObCxVO6K+od9EBERufjIXQDRUJZVCbz2f0AnALuKJ2uxDyIiIheOYBP... | [
"8–3=5",
"6–3=3",
"7–3=4",
"6–5=1"
] | null | 1 |
math | kindergarten | fewer-and-more-compare-in-a-mixed-group | false | true | Are there more squares or circles? | "iVBORw0KGgoAAAANSUhEUgAAAUQAAAA2CAYAAAC/d+C4AAAG+UlEQVR4nO3dz2/bZBwG8GfND2OnrluSLFurNlMrBcoEgm03tJ7hf2AcOIwLF7jyR+zChR04wK5w5tyJGxsHNCoqtcIdS5fFofWyOHXstBwSl61bRNY6ed/XeT7SVKlqs8d56q8c/zx3dHR0BCIiwpToAEREsuBAJCLqS4sOQDQO7kYTABB6IQAgbfT+9K1VU1gmGkxUXxyIlDh+3Ydzbw/uRhONe3tD/U7+6hysVROFq3PQitqIE9LzZOrrHA+qUFLU7jqwf/wbvtM... | [
" squares",
" circles"
] | null | 0 |
math | grade-3 | match-fractions-to-models-halves-thirds-and-fourths | true | false | Look at the colored part of each shape. Which shape shows one-half? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHwAAAB8CAYAAACrHtS+AAAY3UlEQVR4nO2deXxU1dnHv/feWTPJTPYFUBCQuAFVVHBHWVS0VqxWcKvWtQi1aK21rfatvn1b99pqVRAF60K1WpcWN5ClBBFUFBUMi7InmayzZPY75/3jTkISwSQz984MJt/PJ5+EzJ1znvCbc889z3me50hCCFEbgS0B8KkQE/TzHcIkQZ4Ch+ZAmQWk2rAQa7yZNqufdDDWCabNAe0fFRaodGifhn6+O/hUqG6FmghsCoDsjWkv9Iv93SRP0bQF8Ksgqx1e6Oe... | 1 |
science | grade-8 | use-punnett-squares-to-calculate-ratios-of-offspring-types | false | true | In a group of dogs, some individuals have short fur and others have long fur. In this group, the gene for the fur length trait has two alleles. The allele for long fur (f) is recessive to the allele for short fur (F). This Punnett square shows a cross between two dogs. What is the expected ratio of offspring with long ... | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAD6CAYAAADUdTPBAAALGUlEQVR4nO3dQYhc9R3A8d9sZtfJbpJNaNhsC1uyxTWFWou4IYcVF2OLoBVtoVLCkkNBClEx92IPbQ7iwXqoF/FoLAgiqRdtScSCqDCeUg09BEqs2qRJs12TMTG7eT0kzibEmMRM3pv5zedzmp283fnB7/Ld/76Z1IqiKAIAAEhhoOoBAACAzhH4AACQiMAHAIBEBD4AACQi8AEAIBGBDwAAiQh8AABIROADAEAi9aoH4OqdPXs29uzZE/v27YujR4/GwMBA3HvvvbF... | [
"3:1",
"0:4",
"1:3",
"2:2"
] | null | 3 |
math | grade-7 | perimeter-and-area-changes-in-scale | false | true | Look at this rectangle: If both dimensions are quadrupled, then which of the following statements about its perimeter will be true? | "iVBORw0KGgoAAAANSUhEUgAAABMAAAAOCAYAAADNGCeJAAABSklEQVR4nM2TLYgCcRBHn7OKsGARZYN2EWTNi9UgCsomq4LNtk22arMJNjGYtInRj243KhaDLBaDsGX5XzvuTlEQw700DMMb5gcTUkopPoR8SgQgSilc1yWVShGPx+l0Og8H+/0+rVbruW0ymahsNqvO57PyPE/lcjk1nU7VX263m7per3f9n8h6vabZbGIYBslkkna7zWw2u1s6HA5xHAcA27bpdrtUKhVM08S2bYIgICzyOzZd19nv90+v0TSN1WrFcrlERDBNk81... | [
"The new perimeter will be\n1\n2\nof the old perimeter.",
"The new perimeter will be 3 times the old perimeter.",
"The new perimeter will be 4 times the old perimeter.",
"The new perimeter will be 2 times the old perimeter."
] | null | 2 |
math | grade-2 | name-the-two-dimensional-shape | false | true | What shape is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAChCAYAAAD9YcglAAADYklEQVR4nO3YsQ3CUBAFQYyQi6EIiqcIiiE5SsDBWl+yZuILXri6bWbmBgAAJO6rBwAAwJUIbAAACAlsAAAICWwAAAgJbAAACAlsAAAICWwAAAgJbAAACAlsAAAIPY4efj+vM3cAf+zP9+oJAMABPtgAABAS2AAAEBLYAAAQEtgAABAS2AAAEBLYAAAQEtgAABAS2AAAEBLYAAAQEtgAABAS2AAAEBLYAAAQEtgAABAS2AAAEBLYAAAQEtgAABAS2AAAEBLYAAAQEtg... | [
"rectangle",
"circle",
"triangle"
] | null | 0 |
math | grade-6 | identify-polyhedra | false | true | Is this figure a polyhedron? | "iVBORw0KGgoAAAANSUhEUgAAAGQAAABkCAYAAABw4pVUAAAI4ElEQVR4nO2dX2wUxx2AP//3nX13CySQxCR36Z9gO4m9oSKmVcDXpKGtIpAfUCUewHbUvkSJ7Jf0palsGvqQthJ2I1mq1GI3qVSpiionUR8CJVrTNnagatYmHGco5OyAMRCcvb0Y+/Zuz31wbmMCuKTZtcd0Pmml897ub3b28+zM7qzuVzA3NzeHRBgKl/sAJNcihQiGFCIYxct9ADcjkUgwNjaGrusYhoFhGOi67nyvadqi+0ejUeezqqooioKiKKiqSjgcJhKJeHL... | [
"yes",
"no"
] | null | 1 |
math | algebra-2 | classify-variation | true | false | What does this equation show? Assume k is a non-zero constant. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAdsAAAA2CAYAAACP1zPcAAAQCElEQVR4nO3deVAT9/sH8PdCjIQrIKIYDrXqzwtFRMEiWkCxUqxaFa1jOzoV0aJOcVCklvE7HqBjtWOtw2ihtlVnisXaelCs2sEDqBE8qngiolWwgBdoAkHg+f1BSUEISZQVCs9rhhmz2Wc/zyc8u092N0GBiOjvCuCmGnhaBVQSGGOMMfYKJAJgZQr0MQe6SgHhbw3RmdKWTosxxhhrm7ysAUmOuuZBNynQ16KmEzPGGGPs5T2tAq6rgPsVwA01YFJaWfMEN1r... | 1 |
math | grade-1 | addition-sentences-up-to-10-which-model-matches | true | false | Which shows 6+1=7? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAXYAAABKCAYAAACvkX8HAAAMzUlEQVR4nO3dTYwcaX3H8e9TVV3VrzNtj9dre5CxlrUNLF521yS7LFGkSImBKHtagRQU7THkQCIZATcuSCgiicgFRVyTAyI5smSJyAVFiUBOHARrBPZaljHs+HXs6en36qrn4VAz9sy43dPVU093Te//I7X80t1P1a+f0b9qnqf6KWWMMbdCuNqBZgyRQQghxD7iKai5cLIMT/ugbvWNubA+690SQgiRhZcXwHunk/zjqA+nK0nVF0IIsX80Y7jchpshXOmAsx4... | 0 |
math | grade-8 | front-side-and-top-view | true | true | If you look at this object from the front, what will you see? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEDCAYAAAAPwnN0AAAu2klEQVR4nO3de3zMd9r/8ffkjJxKG1KHibaiLUJkaWWRZIutU5Hu1qJ1aG+U37al2N/am4oe7u5906LdLdH9EW3Rsogq21vb25RUi7VSiaXpYkIr0rvs5EAOMpnfH2lmpZHIYSaTmbye/6jJzGcuffjj7Xpc3+tjsNlsNgEAAABwCC9XFwAAAAB4EgI2AAAA4EAEbAAAAMCBCNgAAACAAxGw4VIWi0VLly6VwWDQtGnTZLFYXF0SAABAoxjYIgJX2bBhg5KSkmQ2m+2... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA1AAAAEDCAYAAAA7nuVBAAAy3ElEQVR4nO3de1jUdd7/8ddwVDmmhZKHgUpsU1AiNV0V2NTNUx7aO1ct07rV9N5KU/ute1dih7u9b81DtXmoWzFTS8so092f2TopWemaJHprlDpoifRLdzgpIMP8/iDm1hAcYIY58Hxc114EzHx4u7jX1Wvf7+/7Y7DZbDYBAAAAcAqDweDuEuBCfu4uAAAAAAC8BQEKAAAAABxEgAIAAAAABxGgAAAAAMBBBCi4lcVi0YIFC2QwGDR58mRZLBZ3lwQAAADUigA... | 0 |
math | grade-1 | compare-money-amounts | true | false |
Which is more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAlYAAACYCAYAAAAm2KfyAAC0Y0lEQVR4nOy9d2BdZ33//7p76+57tfe0LcuW94odx84iTgIkcRYZ7EIodFOgtAVayq/0Cy2FAg2QQIDEARI7y3HiJB7xXhqWJWtv6V5d3b3H+f1xpUNcaLHBTkJyXv8ktmX5PI/OfT6f5zPeH5kgCMJUCvpiEM5CRkBCQkJCQkJCQuIiUMrApIA6PbjVIJtKCsKx0Fv9WBISEhISEhISf9ysKgBlbyz/iyI1NBjyXpeEhISEhISEhMTvJpyFnihMpuB8DOShTP4... | 0 |
math | grade-7 | perimeter-and-area-changes-in-scale | false | true | Look at this rectangle: If both dimensions are doubled, then which of the following statements about its area will be true? | "iVBORw0KGgoAAAANSUhEUgAAABQAAAAOCAYAAAAvxDzwAAABYElEQVR4nNWTL6vCcBSGn02LGrQYhcEUwSEIfgHzb0kUBMGwpLjkRxCbX2LBZLQIC6JgNM/hJ5gIolX8c24QLlzuTcNyn3bK8x7Oy9FERPgg+idl38LL5UK73aZYLFIqlZhOp/GNIiKu68pgMBARkev1KoZhyHq9ljgkAfb7PcPhEIBsNku9XicMQxqNxo/wZrNJrVZjt9sRBAGO45BKpVgul0RRxHw+f284mUyk2+3K/X6X4/EohmFIEAS/0lutliil5PV6yeFwkGQ... | [
"The new area will be\n1\n4\nof the old area.",
"The new area will be 2 times the old area.",
"The new area will be 4 times the old area.",
"The new area will be 9 times the old area."
] | null | 2 |
math | pre-k | one-less-with-pictures-up-to-5 | true | true | Count the daisies in this group. Which group has one less than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABmCAYAAADxjOYpAABm/UlEQVR4nO39Z3BcWZqmCT5Xu3YA7tCaAqAAGJRBEYKMCIYWmZGRldVdXV091mM9tmtja7a2Ozv7Z3b3527bzo81mzUbs52una6u2qqsqAyRGVpSRASDDGqCCqCAIDTcAYfre939nv1xQScZOjMpwIjzWKYF6PLec/jivPzOd75PEUIIJBKJRCKRSCQSyW1BvdcXIJFIJBKJRCKR/JSQBlsikUgkEolEIrmNSIMtkUgkEolEIpHcRqTBlkgkEolEIpFIbiPSYEskEol... | null | [
"iVBORw0KGgoAAAANSUhEUgAABOwAAAB+CAYAAACXpI7eAADM9UlEQVR4nOz9Z5BcV5bvi/2OTZ9lMstkVaEMTBVcwZMgQBKg92zHnpmeuXPnPndfPEmhCD2FQqFQPEkfFC9uSKFQKPSeQgrF3NDcmXkzPd1N07RNT5AACO9twZT3mVXpM8/Jc87Wh1NVAEiwie4hgGpy/4IMAFmZlfvslf88a6+99loKIJBIJBKJRCKRSCTfCUIIpmy4WoaCC470tiUSiUQikfwedAViGqwJQ4vpP6YgA3YSiUQikUgkEsl3xpQlOJK/36OQSCQ... | 2 |
math | grade-8 | identify-linear-and-nonlinear-functions-tables | false | true | The table shows a function. Is the function linear or nonlinear? | "iVBORw0KGgoAAAANSUhEUgAAAFQAAABeCAYAAAC98DOnAAAIrElEQVR4nO2cfSyVfx/H3+f4RUKisjwfT42hdpROKySMJOvxnsySTRlLNVn+YGltVkioFkaUlIzZFDX8oaTaWdlik7IsKbKOh9nRA+Oc6/7jnrPbqONcfQ63e9/X5o/zPZfP57PXvtc5nOt9LlQ+auCWAktlTiEYpDChxDChxDChxDChxDChxDChxJAJ/fz5M6Kjo+Hq6gp3d3ecPHkSQ0NDVOV5o1AokJWVBTs7O5SUlMx5TGdnJ8LCwuDs7IwtW7YgLS0NU1NTvPq... | [
"nonlinear",
"linear"
] | null | 1 |
math | grade-2 | identify-repeated-addition-in-arrays-sums-to-10 | false | true | Which addition statement describes the array? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADcCAYAAABK3dY6AAAZC0lEQVR4nO3dP2xT1///8Rc/kSqopL4wUIUgXZcOqT4dYlpYa5exUom3jHigs8PQFbtjy4DNwp8lhqpLO+S6LJEKyY3o0AoaX4lWCkPpRSqp2gFfapArPHx/Q3odTBJSJyfOn/N8LMbB9/i8tpeu3j53T7FY/D9ZolAoLPvbZ599tgU72Ror5QcAAIBZ/2+rNwAAAADsJnvjf+zmu5v/5S617fkBAABgBnewAQAAAIMo2AAAAIBBFGwAAADAIAo2AAAAYBAFGwAAADC... | [
"3+3+3",
"4+4",
"5+5+5"
] | null | 1 |
math | grade-7 | interpret-graphs-of-proportional-relationships | false | true | While relaxing on his front porch, Devin notices a garden snail crawling on the sidewalk. Devin is amazed at how slowly the snail moves, so he starts timing it. The graph shows the proportional relationship between the amount of time (in minutes) that Devin spends timing the snail, x, and the distance (in feet) that th... | "iVBORw0KGgoAAAANSUhEUgAAAioAAAI0CAYAAAAz7AJYAABYkUlEQVR4nO3de3yU9Z3//ffMJJMzCZhwVE4qEQTCQY4SDmJYNIoNaJGVbln74652/Wl32+52XW/vXWt5dLdrPRTbXVsrde2RNagoqJwExUohBDABBClJAAkkktPkcM3puv8ICQkJkITMXHMlr+fj0cdurjnkk3EmvPK9rrnGYZqmKQAAgAjktHoAAACASyFUAABAxCJUAABAxOrxoTJ79my98cYbzV+/9dZbGj16tILBoHVDAQCADunxoTJ+/HgVFhY2f71q1Sr927/... | [
"In 12 minutes, the snail moves only 30 feet.",
"In 30 minutes, the snail moves only 12 feet."
] | null | 0 |
math | grade-4 | compare-fractions-using-models | false | true | Which fraction is less? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC0CAYAAACuelsNAAAuCElEQVR4nO3de1TUdf4/8CeSLikKZOGFBFHLK4raqikmSO7ijcv+MqW0wNzVav0JuanVriGu1+9XhV+56TczTF2hPF9QBO1rCq5oSZqjgtn5KsyoeKHSQTFdb/P7Y/oMn4EZ5vb5zGcuz8c5e04785nPvN3z2nNefXzO6+Wj0+l0ICIiIiIiSbRQ+gBERERERJ6EDTYRERERkYTYYBMRERERSYgNNhERERGRhLyuwd6xYwd8fHxM/mf27NlKH49cxLlz55CYmIigoCA... | [
"7/10",
"9/10"
] | null | 0 |
engineer | grade-6 | evaluate-tests-of-engineering-design-solutions | false | true | Which of the following could Valeria's test show? Valeria was taking part in her school's engineering competition. To win the competition, she needed to build the popsicle-stick bridge that would hold the most weight. She could use only 200 popsicle sticks. She had two different design ideas. She had to pick one of the... | "iVBORw0KGgoAAAANSUhEUgAAAUwAAAELCAYAAACyM7+LAAEAAElEQVR4nOz9V7NkWZbfB/62OMr11SFTV1ZldRWqu4AW6G70NEFiBiSIhzESMKMZwS+AxzF+CTzgAa94nBkzjM3AxgizIcixIQCCEOxGC1RXdVXqzNARV7r2I7aYh32OX78eN+6NyIjIiKzOlRbpft2PH7n32kv813+Jv//3/77nW/lWvpVv5Rsk//Af/sNXclwN8A/+wT94vr24i3Wu96ffCyHOvK5+v/rZ6ntr7cW/P3177j5WPztPnvf7VWmuZfWan1eklC9sX6/... | [
"which design could hold more weight",
"how much weight a bridge built with 300 popsicle sticks could hold"
] | null | 0 |
science | grade-5 | compare-properties-of-objects | false | true | Which property do these four objects have in common? Select the best answer. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADQCAYAAAByQhWRAAD0AElEQVR4nOy9d5gk1Xm2f5/K1WF6ctrZHIAFREYggRCKVpYl258tZ/tnf7Ys27I/y5YtK6CAhGRhyShY0QpWtIWEMiABIrOkZWFzTpNzp8rn98ep7p2FBZZlNrF1X9cQZnqqTs30dD/1nud9XiGllACe5zE0NMTs7CxRFJGRcbwxDIOWlhb6+vpwHOeonit7/mecaGTP/4xTmez5n3EqMx/PfyGllPV6ne3bt7N48WIcx8E0zXleakbGMycMQzzPY9euXaxcufKovch... | [
"translucent",
"soft",
"opaque"
] | null | 2 |
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