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-3 | reading-schedules | false | true | Look at the following schedule: Which activity begins at 3:10 P.M.? | "iVBORw0KGgoAAAANSUhEUgAAATYAAAD3CAYAAACXf3gMAACO2UlEQVR4nOydeVxN6R/HP7d9075oV5RKthIKpUJakKVEdmMd+85Ys459BiNjGcxQlIQskSSyFiFLIRVZ21Bp//7+aO75dbr31i2M0Zz363VenOf5Ps95zvfe+z3P1vnwnANCCRwcHBwNCCkAmOTT41u3g4ODg+OLsDXkLCS+dSM4ODg4vjRcYOPg4GhwcIGNg4OjwcEFNg4OjgYHF9g4ODgaHFxg4+DgaHBwge0LMMenK+b4dMW9axe/2jXiY85gjFNz7Fg2/atdQ1z... | [
"the figure skating show",
"the hockey game",
"the speed skate",
"the backward skate"
] | null | 1 |
math | grade-3 | match-clocks-and-times | false | true | What time does the clock show? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEJCAYAAADhBFPCAABQa0lEQVR4nO3de1zT970/8Fe4BVBIEBDBSwJaEWwlahW1lUvV3qyKvWzrFTyn7frbaTfc1p3L1oHb2XbO6TZx7c7pTttj7GXturai1l60asRbsYrBVhArEBRFBCUBhYRw+f2BpFyTT0JCLryejwePhuTz/X7fRfLg/f3k/Xl/JN3d3d0gIiIiIiKf4OfuAIiIiIiIyHmY4BMRERER+RAm+EREREREPoQJPhERERGRD2GCT0RERETkQwLcHQC5n7m9E2ZTB9pNHWg3daL... | [
"twelve o'clock",
"twelve thirty",
"one o'clock"
] | null | 0 |
math | grade-2 | equal-sides | true | false | Which shape has 3 equal sides? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAEvUlEQVR4nO3dP28cRRzG8efOf4oQQxUQLwB4CanydnghEYqQIgUpSCAhCtJAE2hCBaW7uHPlEGQaJz5jnS377HN8t7NDsVigJNhmbvc3OzPfT2XL8u4UX1nWI2s88N770Uz6fSpNnFR5AQtbHkhrS9JHN6QPVqXB6Nz7p8exj4Wc3X5XWn4+bT75cFX65J2mQmBREyc9O5V2Z9JvU2l4XDVfIDK0aW2paUqSTpw0dP/6AtCmi6bmXhrGPQpKQWgwQWgwQWgwQWg... | 1 |
science | grade-5 | match-chemical-formulas-to-ball-and-stick-models | false | true | Select the chemical formula for this molecule. | "iVBORw0KGgoAAAANSUhEUgAAAV4AAADPCAYAAAC9ZrlIAAA5HElEQVR4nO2daZAkx3Xf/5lVfc597OzsCWCxWBAkSPCmQJAAT0kUKVkiqcM0bYUpKeywrA+2+dkRkr5ZYUsOfXAowgrZpkQ7eIi2SClIk7RE8QApHgBBCQQBELvALrDHzO7OTE/fVZn+UJXd2dnV3VXV1TVVM++30Tvd1VWZWdVV/3r18uVLJqWUIAiCIFKDH3QDCIIgjhokvARBEClDwksQBJEyJLwEQRApQ8JLEASRMiS8BEEQKUPCSxAEkTIkvARBEClDwksQBJE... | [
"H2",
"HFN",
"HF",
"H2F"
] | null | 2 |
math | pre-k | fewer-more-and-same | false | true | Are there more squirrels than acorns? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEECAYAAAASx0PMAABTJklEQVR4nO3dd5xd533f+c8pt9fpBTODwWDQAYIUJYqUZFoSqULHipzEilucuCfrdUmc9WZjxU6yjldSdteyJXsTO4oVv+Ii27Esy5FtqlkmJZFiRW/TCzC93V7P2T/uYDCDGZQB7pQLft+vl0Ti3FOec78vvs4Pz33O8xiu67qIiIiIiEhVmDvdABERERGRB4kKbBERERGRKlKBLSIiIiJSRSqwRURERESqSAW2iIiIiEgVqcAWEREREakiFdgiIiIiIlWkAltERER... | [
"no",
"yes"
] | null | 1 |
math | grade-5 | mean-find-the-missing-number | false | true | Darnel has the following data: If the mean is 16, which number could u be? | "iVBORw0KGgoAAAANSUhEUgAAAVoAAAAkCAYAAADIDvJzAAAGUElEQVR4nO3de0yVdRzH8fd5ziE4N0wuAmJeCJRDkuAlUaK08lbOVdofrtxqrjWbbbX1j3O2tNvaXP1R/7S2nN1W2cXUrMg0SkVRIDEBNcVrwAFF5HLQ55zz9IdJntAG7jyXw76v//g9PPw++/2++z6cHwewaZqmAajhMF3BEGFNQ0MIIcTNsAGKzYbbYSdOUa6MaZqmdQdDBEIhc9MJIcQg47TbcTnsKGpYkyYrhBA6CIRCqGENJRAKmp1FCCEGrUAoiBIMy4msEEL... | [
"15",
"24"
] | null | 0 |
engineer | grade-8 | identify-laboratory-tools | true | false | Select the dropper pipette. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAPoAAAD6CAYAAACI7Fo9AABcpklEQVR4nO29ebQk2VXe++19TkRm3vnW1HP13JpnBEY8MG3gCQlkqdWtMhISy8IPZBAGzLKxeTzea4xttOy18LL8EBJ+WCAkdavoEhYYjGVwIxAgkNCAJCT1pB6qqmu+dcfMiDjn7PfHiZMxZOStW9XDvVk3vrXy5hSZNzIifvHtvc8QQKtWrVq1atWqVatWrVq1atWqVatWrVq1atWqVatWrVq1atWqVatWrVq1atWqVatWrVq1atWqVatWrVq1atWqVatWrVq... | 3 |
math | grade-1 | which-tally-chart-is-correct | true | true | Rob had a game. He shared some fruit with his team. Which tally chart shows the right number of each fruit? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEOCAYAAACzXGCqAABEyklEQVR4nO3deZxcV33n/c+5t9be1WotLVuSjSUTbAkDDsZsjw02jkdMEgPBGMcMCfvghCVPAhNgSOCZhBmeDI/hxRaPJwE8YQkmHhAxiw1kLMACbAOyhC3LtjarW1Kv1dXVVXW38/xRrb2r16q61d3f9+ull9R9b9363V7sb536nXOMtdYiIiIiIiI14cRdgIiIiIjIUqKALSIiIiJSQwrYIiIiIiI1pIAtIiIiIlJDCtgiIiIiIjWkgC0iIiIiUkMK2CIiIiIiNaS... | null | [
"iVBORw0KGgoAAAANSUhEUgAABDoAAAEOCAYAAABo/nelAAB5ZElEQVR4nO3deXydZZ3//9d932fN3rRN13SBlqULlEUoKgKyiqKgbCKMyqqIC8y4gaM443wZdQbQnwuyuKAjQuuggsgqDiAtCAilBQultE2btEma7SQ5233f1++Pk7RNs51s55wk7+fjkUeTc2+fk6RJ7ve5rs9lGWMMIiIiIiIyKizLyncJIiKTmp3vAkRERERERERERouCDhERERERERGZMBR0iIiIiIiIiMiEoaBDRERERERERCYMBR0iIiIiIiIiMmEo6BA... | 0 |
science | grade-4 | compare-temperatures-on-thermometers | true | false | Select the thermometer that shows the highest temperature. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJQAAAC8CAYAAACew4ePAAAT8UlEQVR4nO2dTWwbR5qG3/7hj0iRji3JjiWO4Xg9s+QEWMBYm7ossnAiATOeOBJ12MvGsYHdkw0BuYlI7oJ0ZqDbAiKsa8TYnmQWiJIMFnuh4ixmA8S0MwtMgKEUx3bkcesHFsnu2gNd7Wazu0lRlLq6WQ9AWOyuLha7X371dfXrKoEQQh5WgP/bATZVoEbA4bSNLAAxCfhlBDgRBISHu4SsKm43i+MHRuOA/Oed+puTQeDvo3W1cTjtsqkCD7aBHyvA9zuAqNT... | 1 |
science | grade-5 | identify-magnets-that-attract-or-repel | false | true | Two magnets are placed as shown. Will these magnets attract or repel each other? | "iVBORw0KGgoAAAANSUhEUgAAAFIAAAHDCAYAAAC3YU3JAAAWk0lEQVR4nO2de3Bc1X3Hv/ex0krClvUAG0uyMdhgQ8urOG55TppBNJOSxkyn0wkEZoohuMZOmIH8FZK0OE2n0IbYZiCMoQ/M0GkI0EybGXCa1gm0dbAJkIIfxOCHbCOwJGRHsrR7H/3jWra00p577zm/89DqfP4CLIu7nz33nu9+7zl3nTiOYxhMfxn48cchbpvv6T4UJq7uA0hjc0+Ahz8IYPS7DcNFBjHwxMEAu4divHIs0n04TIwW+UJviMOjyT9vPBDoPZgUjBa... | [
"attract",
"repel"
] | null | 0 |
math | grade-1 | compare-objects-length-and-height | true | false |
Which pencil is the longest? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAABECAYAAACYoDkZAAAMrElEQVR4nO2de3BU1R2Av01IJAsJEJIQQImgAaK0RQJGaEttfSQtUx2UFqswnaltR0erYjt2rLa2nbbWFqqAbUWtrfXZEW0r7TRYWhAogpCxohB5aFke8gjhscludu/ec07/uLmb3exuzG52czfZ883c2ey9uXfPZvbL73d+55y7LqWUOmbAfj+0CTAVGo0mQwxxQXE+VLthTCG4jgWVetPrdLM0mtyjrgSG7PNbT8YWwpRhlp0ajSYztAnY44OjBuz1Q57XtA5... | 1 |
math | grade-5 | parallel-sides-in-quadrilaterals | false | true | How many pairs of opposite sides are parallel? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABxCAYAAADvX9QKAAAWMElEQVR4nO3dW3Cc533f8d97PuwCBIgTCRAkSIKgeBR1oHrVGXtGk96kk4w1zTQ3zWjqceVMKstJPI5kO3aiRqlqt1YSZuK4bj3xTEe9cS4a3TjjGadXaUu5pA4cSuKZBEDiRIDAnt7dd983FwB3TVkUucQCuwC+n7sHQ2D/IMHBDy+e3/MYaZqmAgAAANAUZqsHAAAAADYTAjYAAADQRARsAAAAoIkI2AAAAEATEbABAACAJiJgAwAAAE1EwAYAAACayG71AM02+z/... | [
"1 pair",
"no pairs",
"2 pairs"
] | null | 2 |
science | grade-3 | identify-rocks-using-properties | true | false | Select the one substance that is not a rock. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANcAAAEGCAYAAAD2aACLAAClNklEQVR4nOz92ZNd2ZXmB/7OfM6dZx8xTxEMRgbJZCazMsWqrKG7Kq3UZjLT/6R/QLJ+k970ILNuU6klK6mquyZmFbM4BocYEAAC4XCHT3cez7ln7od99r7XwWAyiyTICNCXGQyAw3H9Dnvttda3vvUt7QezPH9UhqrBtV3btf0atkjhkxWcR9A04b9qiK/r1451bdf2m1nVgEdl8edluvm6fu1Y13Ztv7lJP4rzzdf0389TubZre/Pt2rmu7dpek10717Vd22u... | 2 |
math | grade-3 | identify-two-dimensional-shapes | false | true | What shape is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACuCAYAAAAMN3rwAAAOBklEQVR4nO3dW2/bZraA4TV7zwb2/dzPf5i/bwiyZTCpDY88ERJAgF0bhWXAB7iGT6IkiiL3haed3TZpfJBEkXyeu7Zp/aFxgNfU4rf+UpZlGQAAwFL8V9UHAACAJhHYAACwRAIbAACWSGADAMASCWwAAFgigQ0AAEsksAEAYIkENgAALJHABgCAJRLYxMVFHv/617TqYwAANMJfqz4A1Xp6KqLTGUeWlfH3v/9P/O1v/131kQAAas0T7BYrijK2tsYxnZZRFBE7O+N... | [
"triangle",
"hexagon"
] | null | 0 |
science | grade-4 | animal-adaptations-feet-and-limbs | true | true | Red-eyed tree frogs live in the rain forests of Central America. They spend most of their lives in trees. The feet of the tree frog are adapted to stick to the smooth surfaces of leaves. Which animal's feet are also adapted for sticking to smooth surfaces? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEKCAYAAABnkCFsAAEAAElEQVR4nOydd5wdVfn/3+ecmTu37L3bN9lN74EkECD0JlWaATSCgAVQUBELKIr6taKCoqAgIkWlK6IUqdJ7JyEhjSSk7mZ7u33aOb8/ZrNfggECBOXr777z2tcr9045z8ydM/PMcz7Pc4QxxgRBgNaaChUqVKhQoUKFChUq/N9ESollWQjf903Fua9QoUKFChUqVKhQ4f8+UkpkxbmvUKFChQoVKlSoUOG/A6018j9tRIUKFSpUqFChQoUKFbYdFQe/QoUKFSpUqFC... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA88AAAEKCAYAAAAsMWftAAEAAElEQVR4nOy9d7xlVXn//15r7XLqPbfPvXd6H6Yx9CoKKCIgoKKo2AsmaExii8k331gwkYSIUURjL4BiNAiCSAeR3gemMb3dOredfnZZa/3+2HduQEEGwfLN77xfr3nNPXvvs9fa5+y1zn7W8zyfR1hrbRzHGGNo0qRJkyZNmjRp0qTJ/5tIKXEcByHEn7orTZr8r0Q2DecmTZo0adKkSZMmTf7fxxhDHMd/6m40afK/Ftk0nJs0adKkSZMmTZo0+d9B89m+SZM... | 0 |
math | grade-8 | describe-a-sequence-of-transformations | false | true | What combination of transformations is shown below? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEyCAYAAADA5Kd8AABBrElEQVR4nO3dd3Tb5dn/8bdkeY843iPejp3EmTgBMiAQIOxRKFBGgQIdv1IKtLTQwfP0gZbSlpbuSWmh0BY6GAkjIYPsYSvLTuIsO7bjncR7W9LvD1lOnOnxtSXbn9c5nIM1vtctC44/vn3puk0Oh8OBiIiIiIgYwuzuBYiIiIiIjCa9AnZFRcWwL2Cs1HRXXdUcXTXdVXes1BQRETGC6eQWEavV6s61iIj0kp2d7e4liIiI9Jvl1BuG+wea1WodEzXdVVc1R1dNd9V... | [
"reflection, then rotation",
"reflection, then translation",
"rotation, then translation",
"rotation, then reflection"
] | null | 3 |
science | grade-6 | compare-concentrations-of-solutions | false | true | The diagram below is a model of two solutions. Each blue ball represents one particle of solute. Which solution has a higher concentration of blue particles? | "iVBORw0KGgoAAAANSUhEUgAAAbAAAAEVCAYAAACBn7B3AABuNUlEQVR4nO29eZwdVZk+/pyqu/aefSMhTUjCkoRt2BcFZZFVREFlGIFBHH6OjjrooDgqOIjICA7OVxTBYVBwRkFgFIQAoqAIshqWQFhC9j3pTm+3u2/V+f1Rdc55z6m6na27033v+/AJ1VW3qm5V3fOc932f9z2nhJRSgsFgMBiMUQZvd18Ag8FgMBg7AzZgDAaDwRiVYAPGYDAYjFEJNmAMBoPBGJVgA8ZgMBiMUQk2YAwGg8EYlWADxmAwGIxRCTZgDAaDwRiVYAP... | [
"Solution A",
"Solution B",
"neither; their concentrations are the same"
] | null | 2 |
math | grade-8 | make-predictions-with-scatter-plots | false | true | Based on the scatter plot below, which is a better prediction for x when y = 65? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFhCAYAAABK/t0lAAAiT0lEQVR4nO3df3DU1f3v8VcSArsbhUhDxAWTWBB2dZCkWwdQhIQRCpIMhP4QNQoYGdBihWvtUGtr2k6JVouEQaOFltDWXq3VYHFGCdeS6r0mWvfbRaRJwB/JkgSEWILikuDC3j8ctgZIIHJ2P5vN8/EXn3PWz/t9MiN5zYez55MQCoVCAgAAAGBEotUNAAAAAPGEgA0AAAAYRMAGAAAADCJgAwAAAAYRsAEAAACDCNgAAACAQQRsAAAAwKCYCtgdHR3q6Oiwug0AAAD... | [
"21",
"99"
] | null | 1 |
math | grade-7 | apply-multiplication-and-division-rules | false | true | The number line shows an unknown number, w. Is – 4w positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAGM0lEQVR4nO3dT2iTdxzH8c+TNknbVGuFdNZp9eg6mYg1tlJUGMxBkZHixYt4EhQv8+JlssNA8DIvepB5Eiw9jMgQZTsm3aBJW0UJZjts1jp1a1axrmnzr80OadJmtk2raZ487ft1evLkOXzgSeDDj+/ze4xMJpMRYGE9PT0yDEMnTpwwOwrKhHsOAKhk1WYHAN7Xs2fPzI6AMuOeAwAq2bILdiqV0tDQkILBoJqamlg5AkpkPBDTm0BM8adJSVLNDocaDrm08ZDL5GQ... | [
"negative",
"positive"
] | null | 0 |
math | grade-6 | front-side-and-top-view | true | true | If you look at this object from the front, what will you see? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEFCAYAAADZm5BpAAA2wUlEQVR4nO3dfXQU9Jn3/8/kgYQYkiiI4SFmoiCcos0E0RY2kom4FhFK8KaSW1QGhSr7Q5loqQ+LZmKpdaU1Q+XcUhfNcEQLLLcMPm1+PUJGpcJvURhWOQKmZtiIRAXPEAIJJJP5/TFkSgoJeZjJZJL36x/KPHznitBzPnzPNddl8Pv9fgEAAAAIiZhIFwAAAAD0JQRsAAAAIIQI2AAAAEAIEbABAACAECJgI6K8Xq9KSkpkMBg0f/58eb3eSJcEAADQLQamiCBS1q5... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA3gAAAEFCAYAAACxTUV4AAA8jklEQVR4nO3df3TU5Z33/9eQhIQQMoMgBiFmRlE4izYTQCtsaibiWqRQgl9WchdbBoUV9kaZaGnRRTNhqXWbbTNUzlfqRjMcsQVubomK3ZweIaOm4haFYZVTwLQZNiLRgt8hCSSQH/P9Y2AqBUJ+zOSThOfjnB5KMrnmFYjn8DrX+3NdplAoFBIAAACAqDCZTEZHwFVskNEBAAAAAADRQcEDAAAAgAGCggcAAAAAAwQFDwAAAAAGCAoeDBUMBlVUVCSTyaRFixY... | 0 |
math | grade-2 | identify-multiplication-sentences-for-equal-groups | false | true | Which expression describes the model? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADXCAYAAAAgGib5AAA07klEQVR4nO3dfXBjZ30v8K/eZcmWbVmWZcnedbIJ7Cxlks467E7oQEM2dJMhJU2nSwZoSgm5hc7QCcwdLpCWJtxkyKWXwhT6RgLTlmkg0EBaZjKBLKUJELLJhizhkm6yyW78Ilm2ZcnWu/Vyzv3D8VkdyZb1co7Oi76fmZ1YWr38lNVX+vk5z3keiyiKIoiIiIiISBFWrQsgIiIiIjITNthERERERApig01EREREpCA22ERERERECmKDTURERESkIDbYREREREQKsmt... | [
"2×5",
"2×3"
] | null | 1 |
math | grade-4 | acute-right-obtuse-and-straight-angles | false | true | Is this angle acute, right, obtuse, or straight? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABwCAYAAAAkAwevAAAHi0lEQVR4nO3dXWzddR3H8c/ZOhhlUOKmnQhbByoaWLeJGQ8XrkaBCciDxgs1ZvjIYJhghg/hhoo3emHYBHwINx0QjVeUER8ydlFiHAQCjOGiBDs6ZnCFLXZja8PacLwYLd1aHpR/++855/W66f+c/0n67d07/3zPr5VqtVoNAABQiFllDwAAAPVEYAMAQIHqOrAH+/vKHgEAgAZT14H93H2d2butu+wxAABoIE1lDzBVhg8N5N+PPpjBl3dn4cXXlD0OAAANom6fYO9... | [
"obtuse",
"acute",
"right",
"straight"
] | null | 0 |
math | pre-k | fewer-and-more-compare-by-counting | true | false | Which group has fewer? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAALZElEQVR4nO3d329UdRrH8c+ZaYexUtrQX24gxDUtS/SCHxsqaAKJRBBMIRETkl3/BC5M8MaECJrVq957oVfGRA1BA9xYDARiQqSCgon8sERiQGxpK7SlQKedOXsxdNPgIsXOfJ/zzLxfSYMEpE+fnvc58yudKI7juD8nXbotjeWlqVgAyqQmkurTUked1JaRov6JOO4dtR4LqD7PLpBq+m4Xf/O3jPSPx4t1AiiPsbx0cVz6LSf9dFtKjU4V/4D4gPKrTxdbk6R... | 1 |
math | grade-2 | which-picture-shows-more-up-to-5-dollars | true | false |
Which is more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAlgAAAC8CAYAAACkLNBhAACwoklEQVR4nOz9d5hcd3X4j7/u9D6zbbY37WqLei+rYkuucrdxA2M7fCBAElMC/BLyhCTfVEg+BPgQCMEkxjbGxjaucpVlWb331Urbe5vZ3el9bvn9MTsXKyEg25LshPt6Hj0qu5qde+ace8/7VEFRFGUyA70JiEogKmhoaGhoaGhoaLwHDAI49TDXBqUmECbTinI48mG/LQ0NDQ0NDQ2N/x2sdoGhJ5H7S7kJmu0570tDQ0NDQ0NDQ+PCiUrQFYeJDHQnQBcRc1/... | 0 |
science | grade-4 | use-evidence-to-classify-mammals-birds-fish-reptiles-and-amphibians | true | false | Amphibians are a group of animals with similar traits. The following traits can be used to identify amphibians: They spend part of their lives in water and part on land.
They have moist skin.
They make eggs with no shells. Observe the animals and read the descriptions. Select the one animal that has all of the amphibia... | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAp8AAACmCAYAAACcAuREAAEAAElEQVR4nOydd5wdVfn/3+fM3O09u5vNbja9h9DTCCU0IRCKIgSkCQoiioqAShFQEUJRmjRBpCMYQNCIgEgNEEJIJZBCEtKzm+313jtzzu+Pc2buvSlkg4jfH87HF2bvvVPOnJk79zPP83w+j5jTovXwfCh0iBAhQoQIESJEiBDhP4I2H5Z2gGj1tI6IZ4QIESJEiBAhQoT/NNp8EFpr/d8eSIQIESJEiBAhQoT/DbjpL374i+8BIJRGCI2QGq0VIEBLQAIKJSA... | 0 |
math | kindergarten | one-less-with-pictures-up-to-5 | true | true | Count the butterflies in this group. Which group has one less than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABmCAYAAADxjOYpAABKWElEQVR4nO3dd3xUVfrH8c+d9Mxk0kjvCSSQEFKo0hJCUXoVcSUgzRUFxLa2BQR01RVEwLKr2MBdXSlSxQIkFAEpaUBIAukJ6X3Smbm/P4ZciMFd/W1QcM/7ta81mXLnzD388b0nz32OJMuyjCAIgiAIgiAInUL1Ww9AEARBEARBEH5PRMAWBEEQBEEQhE4kArYgCIIgCIIgdCIRsAVBEARBEAShE4mALQiCIAiCIAidSARsQRAEQRAEQehEImALgiAIgiAIQicSAVs... | null | [
"iVBORw0KGgoAAAANSUhEUgAABCEAAAB+CAYAAAAa5QvPAACTWElEQVR4nOzdd3zURf748ddn07ObTe+9kwRIobeE0JReVfSkYxdUFMWCCNgFkaLeWUDAU1S6gCi9I0oSAklISCchvWfTdz+/P5YsiUHv7ncS8L7zfBwnZHc/O/uZzD5m3jPzHgmQEQRBEARBEAThTyHLMoVNkF4HNVpoEb1tQRD+jzKWwMoIAi3B2VT/MwkRhBAEQRAEQRCEP01ho8y56ttdCkEQhDtLHzU4mYLx7S6IIAiCIAiCIPwvuVKn/6+rKQQr9bOAgiA... | 2 |
math | grade-5 | interpret-bar-graphs | true | true | While looking through an almanac at the library, Mateo noticed some data showing the population density of various states. Which bar graph shows the same data? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACeCAYAAAAITX1dAAAy1klEQVR4nO3deVRV1f//8edlFEQBFVDAAXEIBSUHnBI1ES3H9OOncsihNG2w8JOaZvUxy/pqpn7STLM0M80pzZwyc9bUnKccAlRAEVARkBnu7w/j/rzhAHaFxNdjLVbr7v0++7z3PazVm+0+5xi6z6tuRETuu+X9wos7BRERESkCVsWdgIiIiIhISaICW0RERETEglRgi4iIiIhYkApsERERERELUoEtIiIiImJBKrBFRERERCxIBbaIiIiIiAWpwBYRERERsSAV2CI... | null | [
"iVBORw0KGgoAAAANSUhEUgAABRoAAAFsCAYAAACjEQXkAACT2klEQVR4nOzdd3hUZdrH8e9kkkkvlJDQQkIvoQqhNymiCAqKFQV1UVFXxbX3ir4q6O6CfRWxIhoUpYmCVOkQurRAQiCEhIT06e8f2cw6hpKQCZPA73NduWCec5/z3Gdm0Mk9TzEATkRERERExCOcTifpFthXCHl2sOnTtoiIiFygfA0QaoQWQRBlAgMqNIqIiIiIeEy62cm6XG9nISIiInJ+dQ8DX28nISIiIiJyIdlbWPJnfRO0Ci75ll9ERETkQpRnhz8K4Kg... | 0 |
math | grade-7 | identify-linear-and-nonlinear-functions | false | true | The graph shows a function. Is the function linear or nonlinear? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABmDUlEQVR4nO39e3Rc5Z3n/37qpvvVkiwZGcmYi0FgGQyG2NhgAg0EEiY2yUD3ym0mfSHT6aTTfXpOr5xM1nSGZvL7dZOc0CSdZCYTknSvk2l+ASaByI4JBjtywFjYMpYNGGPLkm1dSipJdd+7au/zhywhYRtLeD8ulfV+reVl1WV/9NXeVbu+9dRTe/tc13UFAAAAwBP+XBcAAAAAXEhosAEAAAAP0WADAAAAHqLBBjDplltu0TPPPDN5+Ze//KWuuuoqOY6Tu6IAAMg... | [
"linear",
"nonlinear"
] | null | 0 |
math | algebra-2 | match-exponential-functions-and-graphs | true | false | Which graph matches this equation?
\[ y=\left(\frac{1}{3}\right)^{x}+2 \] | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAVUAAAE1CAYAAABX+HN0AAAeR0lEQVR4nO3de3RU9b338c+eJCRhEhOVXI4uG8JFIhcF0wOhdcHBlnKprKcgSMuxLSD2aIXVP2StguvQ+JzVKrWUtU4flqKiyKn1Lo81VARa5dGuJiCRURMaUCBaMCEBGS4JmSQz+/kjzWRCAiSwZ/beM+/XP8zsy/y+mcuHffv9tmGaplnfKn3WLJ0JSu2mAAB9lGxImUnS8IFS3gDJqA+Y5u7TdpcFAO434Sop+dPmjif/MkAa4e1IXABA35wJSvubpLpW6UC... | 1 |
math | kindergarten | addition-sentences-up-to-10-which-model-matches | true | false | Which shows 4+5=9? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAagAAABKCAYAAADuScD9AAANdElEQVR4nO3dT4wcWWHH8d97VV3Vf2faHq/X9iBjLWsbWLzsrol2WRASEnhDxJ5WHFihPcJlE8lSlBs5RIoiFIlcUEKOcIiSHFmyROSCoiCQwUKwRsRey3IMO/47nunp/9VV7+VQ0+Pucbunq6de1Zvm95FGa7tnqvvb2nqvpqq6Smit9Z0AuN4BmhEQahAREWXOFUDNAU6Xgac9QNzpa31pK++XRURE9MjLS4D7fif+y3EPOFuJZy8iIqKsNSPgahu4HQDXOoD... | 1 |
engineer | grade-8 | identify-the-experimental-question | false | true | Identify the question that Joy's experiment can best answer. The passage below describes an experiment. Read the passage and then follow the instructions below. Joy glued lids onto 16 cardboard shoe boxes of equal size. She painted eight of the boxes black and eight of the boxes white. Joy made a small hole in the side... | "iVBORw0KGgoAAAANSUhEUgAAAUwAAAEICAYAAAA0p80lAACZtUlEQVR4nO39Z6wt13keAD9rZnbv5fRze2cTi0WJElUsx5bkIjuWJScO4oKoOLEkGBAQBMiPfPCfBAhgJI4AA0k+JAYSuMk2ZUuUP9mSbRkRSYmUKJG8JG8/7Z5+zu5t2vdj9rv2O+vMPntf3nPJew/nATZ2m7pmrWe9fYnf+q3fchEiRIgQ9xB+93d/9y05rwEAX/rSl96Sk4cIESLEreJzn/vcW3Zu7S07c4gQIULcYwgJM0SIECHGREiYIUKECDEmQsIMESJEiDE... | [
"Do the insides of white boxes get hotter than the insides of black boxes when the boxes are left in the sun?",
"Do the temperatures inside boxes depend on the sizes of the boxes?"
] | null | 0 |
math | grade-8 | identify-reflections-rotations-and-translations | false | true | Look at this shape: Which image shows a translation? | "iVBORw0KGgoAAAANSUhEUgAABbAAAAC3CAYAAADD5XikAAASw0lEQVR4nO3dT4xVZ/kH8Ac6LcIVqAah50g1gWSiEWrtNXVha7WttURdmFqtLrTGNDFqxOjCPywoS+OqC41xAdEYGxaAFdOmtmmqbVRiDyJmmkgEsZpzqWjTdDoUU5j5LYZ7OxTIr9D33Puemc8nIefe4eZ7n7x5Z4DvHN5ZFBEzAQAAJDEz46/XAACQyuJRDwAAAAAAAOejwAYAAAAAIEsKbAAAAAAAsqTABgAAAAAgSwpsAAAAAACypMAGAAAAACBLCmwAAAAAALK... | [
"C",
"B",
"A"
] | null | 1 |
math | grade-1 | compare-objects-length-and-height | true | false |
Which caterpillar is the shortest? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAXEAAABuCAYAAADRcCNeAAA3C0lEQVR4nO2deZgcVbn/P1177zOTSSbLTPYdwr4kIgFEkAQUUWRREAGJcjWiPsp6vXIfFdCfC4peEA0qi8gaQYhhJwESSEhC9mUySSaTZCaZvaf3qur+/VFdNd0zk2gmwSTkfJ6nn+6prqo+36oz73nPe95zypfP5/NNWdichC4brDwCgUAgOExRfBCWYVwAqjTwNWXy+SWxQ10sgUAgEOwvp0dAqU06fwzRYELQsfACgUAgODzpsmFjAhqzsCkJUsxyvhAGXCA... | 2 |
math | kindergarten | are-there-enough | false | true | Are there enough saddles for every horse? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACgCAYAAAA2PRuAAAAlwElEQVR4nO3daZgcB33n8W9V9X333IdmNLolS5aRTwI2cnDACVfwBghJCAk5dgNk2SUPsHn2STbZkN3nYcnuPuySkD2ALDk4HgIJkEBCYjtgO9jG4EOyDusazX319H1WV+2LAdmypTm7pZ6e3+elp7u6vl3V7X+3qqsM13VdRERERESkIczrvQIiIiIiIu1EA7aIiIiISANpwBYRERERaSAN2CIiIiIiDaQBW0RERESkgTRgi4iIiIg0kAZsEREREZEG0oAtIiIiItJ... | [
"yes",
"no"
] | null | 0 |
math | grade-2 | purchases-do-you-have-enough-money-up-to-5-dollars | false | true |
A piggy bank costs 2 dollars and 27 cents. Do you have enough money to buy it? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAFgCAYAAADO/w1QAAEAAElEQVR4nOy9eXwkdZ3//xzOahjgU8jRJQrz4dIKKNMtKmkVmFZXbTzYBJVNYIUJru5mvl7JrugM66oz/lhN1muyXgSVZeKZKFcjCj3oascDu1ndnXIV/IxntWd9QKCLs35/fKqquzPJTEZQRrZej0fS3Z/61Of+VL3f78/7WBFFUUSGDBkyZMiQIUOGDBkeE9jr0W5AhgwZMmTIkCFDhgwZHjlkBH6GDBkyZMiQIUOGDI8hPOIEvr4/Qt5wJ4XaH9D3Z9o/GTJkyJA... | [
"yes",
"no"
] | null | 1 |
math | grade-2 | select-figures-with-a-given-area | true | false | Which shape has an area of 11 square units? The shapes are made of unit squares. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMIAAADCCAYAAAAb4R0xAAADpklEQVR4nO3cPW5dVRSA0fX8V4QEdyAGgCOFIqKKRMGwoKKBKoNgCEyDIg2iAMkOPabETizF2LoUT09CSKbjnaPcb1W2XOwj+X7a3d4sy7Jc3vLbDdf33C2S997RhieHfPqIj0/YXL5blldXo5+VjPPiQ45e32x/+eSEpx9sK0ned9f3nL/l91subji4utv+oQiyJk8Ot988vLnn4P4ff0jWZPfN/7VwMPYpyRwKIVEICQohQSEkKIQEhZCgEBIUQoJCSFAICQo... | 0 |
math | algebra-1 | identify-direct-variation-and-inverse-variation | true | false | Which equation shows inverse variation? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAEsAAAAWCAYAAACIXmHDAAAFPElEQVR4nO1YXUiTbRi+Zg1t/uQ0Zpq2zL8gFlGIWduQAqlApJnWQeAED4RlogUSFGRgeBCVZ0ZC2EmgjCVBCdGaTcoT51KzTUIJcyrsNVdpmubVQZ8vvG2T/Bz0fbALHni57ut57pvrfnbv5ZWRJML4I0T87QL+TwibtQ6EzVoHwmatA2Gz1gHRrO7ubuj1eiiVShQWFuLt27chTbS4uIj6+nqo1WqkpKTg3LlzEARBounr64PBYEBycjJUKhVKSkowMjIS0jo... | 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? | "iVBORw0KGgoAAAANSUhEUgAAAQQAAACgCAYAAADq8hJGAAAWyElEQVR4nO3de3hcdZ3H8ffvXCaTe5rm0nsptKXaSimUctEHLyA+C4srivooyioKqPu4i4+IorvAqiiLC97w8gjFXVbBx2eVxUe8sLuKLkVaaEtLS1NoC+m9uTTXySRzLr/94zc5SUiaTNpJziT5vv5J5sy5/Ca/yWfO+Z7fnKO01hohhACsuBsghCgcEghCiIgEghAiIoEghIhIIAghIhIIQoiIBIIQIiKBIISISCAIISISCEKIiASCECIigSCEiEggCCEiEghCiIg... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAiAAAAC4CAYAAADaI1cbAAAgr0lEQVR4nO3deZwcZ33n8c9TVd1za0ajYyRZsnxItsHC94EJLy5zLHacYI5kwcQhhDshwGKMiV9rcy6sWTtLwpEAJruOOZZXsqwxkMXZJFwyWMaHbNmSLMmyZJ2jGc1o7umuqmf/eHoOaUajHqmnqrrn+3699Gp1dR1Pz1Pzm19V/eopA1hERABrLQcKsH0I+iMIFR1EpEICAy0+rG2EjjwYlICISMmBUcuGvrRbISK17soFEKTdCBHJjm1D7nV5Hs5tckcrIiK... | 0 |
math | kindergarten | count-corners | true | false | Which shape has 3 corners? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAACi0lEQVR4nO3cO27cZhiG0W9Gl8K3dAlcukjiFcS78eK8HK0gjgO4tNJKlgArGtAFYSBlMB48g0zOqUgQP/AWD8iOm2VZluuHmT/vZ253M4/LwHc738w8P5v5+cnMT5czm+svy3J1c+xZnLI3L2bOP9yvNy8vZ359ulYI3+t2N/P+bubTw8wf9zPbm8f1gcg4pOdna1MzM593M9vdPx7AIX1r6u9lZnvcKfxfCI2E0EgIjYTQSAiNhNBICI2E0EgIjYTQSAiNhNB... | 1 |
math | grade-5 | parts-of-a-circle | false | true | What is \line{GH}? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADICAYAAACdx5VnAAAueUlEQVR4nO3deVxVdeL/8de9XBYRVAzFFVFBBdwlNyD3rdwtc6qpWcxmvtMvbbHFsZwap2UabcyamcqmprLSFrdMzQUNcV9RcVfEDRQF5Srbhfv7A71yE1yRcy+8n48HD892z3kD9483x8/5XJPdbrcjIiIiIiIVgsXoAOXBZDLd0fPrbyQRERERcRWVouCrgIuIiIhIZWE2OoCIiIiIiJQds8lkYuXKlVft6Nq1K3Xr1r1qe3JyMiaTif/85z/MmDEDk8mEzWa740H... | [
"center",
"radius",
"diameter"
] | null | 2 |
science | grade-3 | identify-minerals-using-properties | true | false | Select the one substance that is not a mineral. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANcAAAEYCAYAAADPtGNgAADDIUlEQVR4nOz915NtSZbeif18672PDnlFyhJdVWigAUyjQdA4HNAwMPLfBR9IGmnDhzEbAwk1GEx1oUSKm+KKkEdv7YIPvt3PiVuZXVmVmdNVxXCzsLg3xImz9/bla61vfetb4j9sjPnJCCYhj+txPa4/YO0U/LqENx0sIvhv5/brwaNhPa7H9e3WJISfjOy/9+rw9eDRsB7X4/r2y9lRbw5fC/5+3srjelx//uvRuB7X4/qe1qNxPa7H9T2tR+N6XI/re1qPxvW... | 1 |
math | grade-2 | match-analog-clocks-and-times | false | true | What time does the clock show? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEJCAYAAADhBFPCAABf60lEQVR4nO3de1yUZfo/8A+IAwLjgeEgqDmggibTCQtQS5TS2gQrrZRqt10Pu9VusLtlBVttbVC5uYH96tuuurW7NVhJpdimJAZqgCVZDR5AHUbTwUHG0zAIA8rvD3YmRubwzDDDDPB5v16+ZGbu55lLnXl5Pfdz3dft09nZ2QkiIiIiIhoQfD0dABERERERuQ4TfCIiIiKiAYQJPhERERHRAMIEn4iIiIhoAGGCT0REREQ0gPh5OgDyvIuGS2hp64C+taPr97au3/2... | [
"2:20",
"4:10"
] | null | 1 |
science | grade-5 | compare-properties-of-objects | false | true | Which property do these four objects have in common? Select the best answer. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADQCAYAAAByQhWRAAEAAElEQVR4nOy9d5gc13Wn/d5bsXNPnkEaZIAgwZwpSlSmkhUsybLl1VqyvZaTnHe9tuWodV5LnyxrbVmWbeVASVakKCow5wQSAAEip8m5U8V7vz+qe2YAIhOZ9T5PYzA9VdVV3VVdv3vuOb8jtNYawPM8BgcHmZmZIYoiUlLONqZpUiwW6evrw3Xd0/pa6fmfcq6Rnv8pL2bS8z/lxcypOP+F1lo3Gg127NhBf38/rutiWdYp3tWUlBMnDEM8z2P37t2sWrXqtH3Jp+d... | [
"hard",
"opaque",
"slippery"
] | null | 0 |
math | grade-7 | classify-quadrilaterals | false | true | What name best describes this shape? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADqCAYAAACY/jKKAAAevUlEQVR4nO3dW2yc553f8d8MORoehhJFydHJlkhLlmJJNmnzIFLWrqTswgnqIDY2B6C7m5WczU2SAlayRXtVWClQ9CqpUqz30HprepMg7aZp4iJZwN01JLVySJMai5QpOrTNkLJkynJImeQcOae3Fy9fciTPy+Mc3/l+bnjADPmY8sXvefC8/5/LMAxDAAAAALLCXegFAAAAAE5CwAYAAACyiIANAAAAZBEBGwAAAMgiAjYAAACQRQRsAAAAIIsI2AAAAEAWEbABAAC... | [
"parallelogram",
"trapezoid",
"rectangle",
"rhombus"
] | null | 2 |
math | grade-2 | which-picture-shows-more-up-to-5-dollars | true | false |
Which is more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAlYAAAFmCAYAAACvN9QvAAEAAElEQVR4nOz9PWwkybbnCf5uo2dgLixgBswA7lqa1k7NYyVG7wgZT4urkS2RV6q4GlNLKoPklR5zRlhSK2qXJV1SGlKr0F6ksOgIacO19JbWSlp37M7ADFjBDTuDfSscc48gK7Nu3X71+vVLxAEyw+lubmZun8fO+Z9zfvfp//W//+P6f/s/APgd/wj8jgMd6EAHOtCBDnSgA/0a+kf+kd/BP8L/5b/7t/zbzf/2f+yxUgem6kAHOtCBDnSgAx3o19PvhHv6Hfz... | 0 |
science | grade-4 | read-a-thermometer | false | true | Select the temperature shown by this thermometer. | "iVBORw0KGgoAAAANSUhEUgAAAdsAAASLCAYAAADdzBdkAADuMElEQVR4nOydd3gcxfnHv3s6yXeyre4m2ca9925jjLsBQyihhg4BQiAQWqg/SiAkIaFDQiCEGjrYYDAtxjY2GBew3JssGxe5qrhJsi1pfn9Iu9oyszuz5Yo93+fRMzrpdj/zfWd33nl3ryiEEAIpKSkpKSmpwBSKdwekpKSkpKSOdclkKyUlJSUlFbBkspWSkpKSkgpYMtlKSUlJSUkFLJlspaSkpKSkApZMtlJSUlJSUgFLJlspKSkpKamAJZOtlJSUlJRUwAoXFxf... | [
"113°F",
"116°F",
"109°F",
"115°F"
] | null | 2 |
math | grade-6 | which-model-represents-the-ratio | true | false | Which model represents the ratio
1
8
? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAhUAAABRCAYAAABlslQtAAALIklEQVR4nO3dWW8UVwLF8dN2t2mMw4RJxIhNoEzCvCRIxkhZFUWKwtsoipSPNx8ATTYYkAJJZOcBJAbsxmDh2GGxyQImM7bBtNvVa81Dx4MBm97uVpX/T0IR2Omqw02qj+vWvZ2J4zheqEg3S9KjulSLBQAA0FI2I73QL702KP1lQMoslOP40orv0wIAAEn25k4pe6PU/M2eAelvO5qNAwAAoJVHdWl2VbpXkX4sSX0rteYXKBQAAKATL/Q3+4MkFetSX33DFwA... | 0 |
math | grade-3 | angles-greater-than-less-than-or-equal-to-a-right-angle | false | true | Is this angle greater than, equal to, or less than a right angle? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABmCAYAAADxjOYpAAAHg0lEQVR4nO3dTXDU9R0G8CcvEBHQFEqQUI1BUvuiU51px9KZzjgD7amjOfXQC8FWr8Khdzo99EjanlqnLRycXsnN6dSpHhzt1Nq0OLYqJgoa3hRDIMZQku0h2RhKNtnN/hOy+PlcYDZk9zvL5Zlnvv/fr6lUKpUCAAAUovlmDwAAALcSARsAAAq0aMAeHBpfrTkAAOCWsGjA7h8YyQsnLq3WLAAA0PCaFnvIsf2Hr2TzhpacPvat1ZwJAAAaVsUGe3BoPJc+mcr7H13... | [
"greater than a right angle",
"equal to a right angle",
"less than a right angle"
] | null | 0 |
math | grade-7 | perimeter-and-area-changes-in-scale | false | true | Look at this rectangle: If both dimensions are tripled, then which of the following statements about its area will be true? | "iVBORw0KGgoAAAANSUhEUgAAABsAAAAOCAYAAADez2d9AAABkUlEQVR4nN2UP4vyQBjE506FxWyRwl5CJCARBBtFUghpAvaCneCXEGsLwdbW1kpIY6kgWOgnSGGwshCxUdc/yCLPW7xcIOd5x92BxU05zyy/nWV3X4iI8CS9PgsUwLbbLRzHQSaTCQ2XyyUsy4KiKDBNE7PZ7HcwIQRKpRKy2ezdsFarwXEc7HY7tFotVCoVSCl/ThNCkO/7NJ1OyTRNetNmsyHOOUkpAy+Xy9FkMqH3UlWVut0u2bZNyWSSXNeler1O+XyeLMsiIQQ... | [
"The new area will be\n1\n4\nof the old area.",
"The new area will be 9 times the old area.",
"The new area will be 16 times the old area.",
"The new area will be 3 times the old area."
] | null | 1 |
science | grade-3 | compare-strengths-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. | "iVBORw0KGgoAAAANSUhEUgAAAcgAAABSCAYAAADQK0R7AAALGklEQVR4nO3df0zU9x3H8efd4XGsDqSCitXGDkjI0E6s1hmMFstwOFKN2mkjidjWqdH2j6Z/uNV2Lq01Nk2r6TZd2xB1TJoZY9TObqaN2ESzqqT1t4ISUIHWWn5MKke5u+/+sLA6vuDdcd/7Aa9Hcol8uft839+Pn1fed9877mszDMNARERE7mKPdAEiIiLRSA0yDL744gtsNttdN6fTSVZWFmvXrqWtrS2g8RYuXEh+fn5QtZw5c4asrCyGDRsW1ONFYl205PH8+fM... | [
"The strength of the magnetic force is the same in both pairs.",
"The magnetic force is weaker in Pair 1.",
"The magnetic force is weaker in Pair 2."
] | null | 0 |
math | grade-3 | scalene-isosceles-and-equilateral-triangles | false | true | Is this triangle scalene? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADPCAYAAADPn6YPAAAhcklEQVR4nO3de1iUdf7G8XsYRk4qh1QExVpJTU0pXTe3XI+lbeDmXm1meSy1REFl1Fo3y0zdfpWKm+muCuFpK02zg4dA1ExLLc3WQ2qp6wFhwwhBRYSB5/cHy+y6eeAwwwzwfv3H8MzMh+vyj4/f637ux2QYhiEAAAAADuHh6gEAAACAmsSpC/arr76qFi1aaNu2bc78GgAAAMBtOHXBXrFihY4dO6bu3btrypQpzvwqAAAAwC2YnJnBDgoKUnZ2tv3nX//613r33Xf... | [
"no",
"yes"
] | null | 0 |
math | pre-k | represent-numbers-up-to-20 | true | false |
Which picture shows 17 triangles? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAjgAAACSCAYAAABIbbBXAAANDklEQVR4nO3dv3NU5QLG8WezyW5WJISYuXeuCKQg91ZgJVS4oVIySOOMVYbKjklt4U1vYaUl/gWW+A84lpQ64wwXZiCDEBKibMyv3eyPc4tDEn5sICQn+57nzffToMdI3m/3oDnvFpIkSR5vSHfXpOW21EoEAABgpb8gHS1K4+9I/yxJhceNJLn1d+hjAQAAZOPCkNR/Zy39m3+VpP8cSdcPAACAk+W2dHtVmtuQ/rcm9f3dSv8B4wYAALg6Wky3jCSttKW+9nP... | 0 |
math | grade-3 | parallel-sides-in-quadrilaterals | false | true | How many pairs of opposite sides are parallel? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEBCAYAAABCCtJ/AAAtn0lEQVR4nO3deZSU1Z3/8c9TVV1dXb3Qe9PsiBIFFRQQBJeAImpixixmojEZzWLGzCSeJC6Mxvk5OS7EZTImmXhmoqNj3OIybjkuBCEBZRFRUAEDUYSm6X2leqvt+f3RzYUmCjRdVbe76v366/vcdNXzwaMnny6eutdxXdcVAAAAgITw2A4AAAAApBMKNgAAAJBAFGwAAAAggSjYAAAAQAJRsAEAAIAEomADAAAACUTBBgAAABKIgo2M85+b/0n3vPttReI9tqMAAIA... | [
"2 pairs",
"no pairs",
"1 pair"
] | null | 2 |
math | grade-2 | names-and-values-of-all-coins | false | true | Which coin is this? | "iVBORw0KGgoAAAANSUhEUgAAANUAAADVCAYAAADAQLWDAAC5AklEQVR4nOz9fWzU55U3jH9szMzgsWdsD2MwBscvY7QNhuSWDazv8LOSEBM2WTVxtJFMVqsgFS1SH91BQneUzZM0VbPJna2yTyRS3ZGyYiWq1R2QuqqTqs0SHJI+PGG9gNEGsOkKxjY1mBcPY3vGL3j8+vvjms+Zc10zJmmbtuluj4RsPDPf+b5c5zpvn/M5eYuLi/ij/C5lanEx/hl+cmIC32wpsn7WzXXiiW//IwCgvbUBRzp7rE8u9bctT78sxwAgv++8PwVvzRM... | [
"quarter",
"dollar coin",
"penny",
"half-dollar"
] | null | 1 |
math | kindergarten | identify-pictures-with-symmetry | true | false |
Which picture has symmetry? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAM4UlEQVR4nO3d248c9ZmH8W9VT/ccPGfGzAwD8QGbiF0chKINQVknkUBCibQRG0f8AbnYvUFZ+SaREFIURdmVchMJbrIhkXa1d1wElIOijUIUECIJwuGwVoyxsTOYOUE8xz53V/32ou0J9sy4u2eq+62aej6SZcyMq1+763FVV1V3ec45t1iVLhaljUCqOwHokB5PGspIxwekyZzkLVace23deiwgfR4clnouFBu/mM5JnzzQqBNAZ2wE0vmCtFCV3i1K/nq98QX... | 1 |
math | grade-8 | quadrants-and-axes | false | true | Which point is in Quadrant III? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AAA9zUlEQVR4nO3dfXhU9YH//c9MhoQ8JxDIA4QIlQeN4Vmeg1KkRVFEhZ/l1la31t/a3a62t7/el5fbulu3crn3Lq3iw3bd9ifdn7a95MbaUrAoIoQgxYBAgEABNTyEhCTkOZOZycyc+w9IDBAgg+fkzEner+vqJXNmOPnw7eScz3zne2ZchmEYAgAAAGAKt90BAAAAgL6Egg0AAACYiIINAAAAmIiCDfRzc+fO1TvvvNN5+49//KNuuOEGhcNh+0IBAOBgFGygnxs/frw... | [
"R",
"P",
"Q",
"S"
] | null | 1 |
math | grade-2 | fractions-of-a-whole-modeling-word-problems | true | false | Johnny is dreaming that he has made it to the last round of his favorite game show, Spin to Win! He will spin a Super Prize Wheel that is divided into 4 equal spaces. If the wheel lands on a winning space, Johnny will win a new car. Which fraction model represents one space of the Super Prize Wheel? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJ8AAACfCAYAAADnGwvgAAAXVklEQVR4nO2dZ3hUZdqA75RJn5mUSa9ACkmkSRIIvYiERcRdUXGtKOqnIK5bFFBXRQHbunz6hcWKZRHbAovSBENTpFiCkIQklJDek2lJpiTz/Rhg0RUMZM45M8m5r4uLDEnO+zC5857yPO/zutlsNlutGY63gb4TrDZkZATB0w2UHpDkB+Fe4FZrstkO6qQOS6avMUIFnqVt9heRXpDibzdTRkYI9J1QbIQaM5S0gbvOav+ELJ6M0Cg97J4BGDrBvfO8T8jICM1... | 1 |
math | grade-4 | parallel-perpendicular-and-intersecting-lines | false | true | Are these lines parallel? | "iVBORw0KGgoAAAANSUhEUgAAAG4AAABZCAYAAADfJBHuAAAIzUlEQVR4nO2dfUxV5x3HPwcUdmGgWIyaadmaCW1t9UaWVRjY1lSMUtua+jZEqbrImDXgnAM1atSq0BcHYRvWgqstvrVM6SquQtJGIWDSiopkCmxZQTYwIihUaJ3cZ3/cF85FVC4v9zmnnE9ics+553nON/dz7+Vef7/zXEUIITDQHR6yAxj0DUOcTtGMuCXJ6VyqrpUdQzdoRtyIH/ry7GtbWLTuHW61tcuOo3k0Iy70yccAKCqr4Ol5a0nLyTcEPgBFK58qb7W185N... | [
"no",
"yes"
] | null | 0 |
science | grade-3 | predict-heat-flow | true | false | Two solid blocks are heated to the temperatures shown. The blocks are placed so they touch. Which diagram shows the direction heat will flow? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAC4CAYAAAAxDlOsAAAZIklEQVR4nO3dfXAj933f8fcusAAWIECAz8cj73gn3Z1ytqyzpLH8IMmKEllSHVueSRxHbcZT/dMmbdLOdNymjdzpJI2dSTttkzQTNU0Uu0mc2uMmtnS2bMmypch61lmWbUnW6cg7Pj+CxPPzPvSPBcHjw93xRHAXIL+vGc2JwHLxI3bx+e1+9/fDKrZt2/NVGC1CzgTDRgghmsKvQNQHx8LQHwBlvmLbL2e9bpYQYq+7JQb+c0XnhwMBOBFx0kgIIZohZ8LZAsx... | 1 |
math | kindergarten | classify-shapes-by-color | true | false | Which heart is purple? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAG0ElEQVR4nO3dPWwbZRzH8d/Zjl8SO3ZeVCdTWymFZHNY2g6J6IYbISWVqgJT5W4VFMQEbUZSukZtxgKdgCJIBUrCVhQGqg7YW1pciTLFiJfGjmM7qc0xHI5akSaxff5fnud+n6VxbPl5XH19d8/5rBimaZq5LeBRCVivAVUTRC3zGUDECxzrBOJ+wMhtmub9gtPTIp0d7wZ82ZJ1Y9APvNxlVUjUqvUa8HADWN0CfikBnkLVuoORkZ0iXqspACjWAE/tmTuI7FR... | 3 |
math | kindergarten | count-corners | true | false | Which shape has 4 corners? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAACjElEQVR4nO3Uu25dVRhG0f8cX4pciKsgHiChR7LyDBTkYal4hiClD6GP6cBOLMX4aFNsRaIhTay5hTNGtZZW8xVTa7csy3JxM/P79czVYeZ2Gfhix7uZx0czzx7MfHs6s7v4uCyvLreexX324puZ47fX6+W705nvH64Vwpe6Osy8+TDz7mbmt+uZ/eXt+iAy7tLjo7WpmZn3h5n94V8PcJc+NfX3MrPfdgpfC6GREBoJoZEQGgmhkRAaieOtB3zOr3/+PK//+mX... | 0 |
math | pre-k | triangles | true | false | Which shape is a triangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAIoAAACQCAYAAADXyvOZAAACVElEQVR4nO3UPW4VVxyH4f+9/igIH1KKRLgnWYJXwm5cZjfshB0QUhPTUNhgCdtXk2JiyeVLNUZ6nmpGpzi/4tXZLcuyXN7O/HMzc32YuV8G5ng38+Jo5s2zmd9PZ3aX35fl/dXWs3jKzl/OHH+8WX9en878+ctaEVwfZj58m/n3dubvm5n91f16IBIee3G0NjEz8/Uwsz88OoDHHpq4W2b2207hZyEUEqGQCIVEKCRCIREKyfGWl7/79Nd8ufu05YSfwq8nZ/P... | 1 |
science | grade-3 | 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? | "iVBORw0KGgoAAAANSUhEUgAAAQQAAACgCAYAAADq8hJGAAAYDElEQVR4nO3de3QcZ3nH8e87s3ddLMmSJdmW7TiR48ROTCBXSEriJJQkJEBSwh1Oy6W0FDicQkOh3FroOZBAoaTQAiHnBAIhQHNPoCQQICbg2EmU2LFsy7FlW7JkWbIuu9rbzLz9Y2ZHkrWWZVvSzlrP5x/77E2z+87+5n2feXdepbXWCCEEYJR6A4QQwSGBIITwSSAIIXwSCEIInwSCEMIngSCE8EkgCCF8EghCCJ8EghDCJ4EghPBJIAghfBIIQgifBIIQwieBIIT... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAiAAAAC4CAYAAADaI1cbAAAi+0lEQVR4nO3deZwcZ33n8c9T1eccmhlpRqOxrMOHbFkSFsYnGBLjIwsmcggknAF2E5KQZQkvXksCG5IlB/DagJMNGxI2CUdeJCZgwoKRsUyCiQnYDpZlW740kkayRvdIM9LcfVY9+0d1z6WZ0SD3VFf3fN//tF49Pa3qeaq//aunfvW0ASwiIoC1lpN56BmHEQ+KSgcRqZCYgWYXNjRAZwIMKkBEpORkzvL4cLW3QkTq3Y3LIFbtjRCR6Ng/Htx2JeDKxuBoRUS... | 0 |
math | kindergarten | fewer-more-and-same | false | true | Are there the same number of bugs and leaves? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACgCAYAAAA2PRuAAAAm4UlEQVR4nO3deXzcd33n8dfvN/doZnSf1mVb8hEfsWOa+yAJCZQQ0gvoUihQoFBKuz2Wpd0+WNrudvtggS1tQws9t0AXCoQQCE0IJKEhd2I7PhLflmTd0kgajeY+fr/9Q7ETO7Zje366Zt7PfyCy9ZvvS1/9ks+MfvqNYdu2jYiIiIiIOMJc6gWIiIiIiJQTDdgiIiIiIg7SgC0iIiIi4iAN2CIiIiIiDtKALSIiIiLiIA3YIiIiIiIO0oAtIiIiIuIgDdgiIiIiIg7... | [
"no",
"yes"
] | null | 1 |
math | grade-3 | purchases-do-you-have-enough-money-up-to-10-dollars | false | true | A dictionary costs $8.46. Do you have enough money to buy it? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAHlCAYAAACAgog7AAEAAElEQVR4nOy9eZgcV3X3/5HX2yDsW2DsLsyiy5K4xhjcjQF3s6qBQNqso7BE80LAYyDJOCG/SAkmFrvMagcCFkuScSBhxKoBbw0O0MYsPYFAt+GBKUKAq7BVs9aF2PS1sanfH7e2nhnZMvBivaa+zyNNd3XVrVt3q3PP+Z5zNiVJklChQoUKFSpUqFChQoXbBA67tStQoUKFChUqVKhQoUKF3xwqAb9ChQoVKlSoUKFChdsQKgG/QoUKFSpUqFChQoXbECoBv8LN4sY... | [
"yes",
"no"
] | null | 0 |
math | pre-k | rectangles | true | false | Which shape is a rectangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAEoElEQVR4nO3dy2ucVRjH8d9MLotedKe4cGndu+k/2o0IWhDEoigolIKFIoG0pDUVNdROigZaahIYSiaXYabz9nRxCI3SmMzMeZ9z+36g0JBmehZf2mmet8/pOOfc9lh6ciTtN9LECZjbYke6vCB9dEF6f1nqbI+cWxvEPhZKdvUdaXHzyH/wwbL08UVfITCv/UZ6fCj9M5Z6R1J3MPGfIDKEdHnBNyVJB43UbU58AgjpuKmXTurGPQpqQWgwQWgwQWgwQWgwQWg... | 1 |
science | grade-8 | compare-thermal-energy-transfers | false | true | Darnell baked two identical cakes. When he took them out of the oven, he left one cake in its pan and took the other cake out of its pan to put it on a plate. This table shows how the temperature of each cake changed over 5minutes. During this time, thermal energy was transferred from ____ to ____. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAABfCAYAAACdpLOcAAAjOUlEQVR4nO3de1hU1f4/8PcAcnW4I4mXQOKqoOYBwTRJ/VbyKy2Fwi+Qd80okEIPZnIUMr4pheQhFfV0TAqINM3Lk7c63vCCoCKiIkqCmORwHRDkNr8/jDnicJmBwcHh/Xoe/3Dvtdf+rL3X2nxmz9p7BIuOjpCASIWWuaYgOuttVYdB9FTjOCKSz9cvnld1CETdTkPVARARERERkfIwwSciIiIiUiNM8ImIiIiI1AgTfCIiIiIiNcIEn4iIiIhIjTDBJyIiIiJSI0z... | [
"the surroundings . . . each cake",
"each cake . . . the surroundings"
] | null | 1 |
science | grade-5 | compare-properties-of-objects | false | true | Which property do these four objects have in common? Select the best answer. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADQCAYAAAByQhWRAADQ8UlEQVR4nOz9eZxk2XnXCX/PuWvsERm5VtZeXdW7urXLFrJky8aybIPxYGM+Br0Gw+eFYQbM9sI7Bn/MO/7AwAD2gGcGMDB4x2AbbFm2Zdmy5JbU6m6p96269srKPTMy9rjrOe8fN7bMyuqq6u6qzKq6X6k6thv3nnvjZsTvPPf3PI/QWmsAz/NYXl6m2WwSRREpKXuNaZoUi0Xm5uZwXfeWbis9/1P2G+n5n3Ivk57/Kfcy78T5L7TWutfrce7cOY4cOYLruliW9Q4... | [
"fragile",
"rough",
"hard"
] | null | 2 |
math | grade-3 | identify-multiplication-expressions-for-arrays | false | true | Which expression describes this array? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACeCAYAAAAITX1dAAAd4ElEQVR4nO3df2xV533H8c+1fS/1xU6xCdgJBttQcOTQBmyBwcWBmEIoroYbpuBkabZU0QKV1pUEaSM0jEADnUTTLZ0ETFvTpmkTkFippi38KBMrNJmCaLKETGESUMVLIoiApLhAIObuj8mTExEM5/ucc55z7vv1ZwLnec6HL/h7z/Pc52QKhUJBAAAAAJwoiXsCAAAAQJrQYAMAAAAO0WADAAAADtFgAwAAAA7RYAMAAAAO0WADAAAADiWywf6no/8e9xQSjfxsyM+... | [
"2×7",
"1×7",
"2×1"
] | null | 0 |
math | algebra-2 | solve-a-triangle | false | true | In solving this triangle, which law must you use first? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEuCAYAAAC08GWcAAA0fUlEQVR4nO3df3RU9YH//9f8uDMxQIATQNgGw68gJCEICCRAkR6Nu55PF1c9bkU9/S4WpSrwbRXdLorlK8KyCrYLguIP9EureNqjLqzf7dbILgeBBJQgkfDDBDCQNgiJYEhCZu7ce79/jJIQo0KYZH49H+e050Am5A1Bfc2dO6+Xy3EcRwAAAAAiwh3tAwAAAACJhIANAAAARNAFAfvLL7+Ux+PRE0880e6Db7vtNmVmZnbJwQAAAIB4dEHALi4ulm3bmjRpUrsPLik... | [
"Law of Sines",
"Law of Cosines"
] | null | 0 |
math | grade-6 | quadrants | true | true | Which quadrant is the pentagon
in? | "iVBORw0KGgoAAAANSUhEUgAAADIAAABACAYAAABY1SR7AAACLUlEQVR4nO2ZPU8CQRCG3xPIBUTQxFDSYUdCgZV29hT+AX4bf8CCxJJOOwsSO+0oiVHuYjQXYs5iQ2PuY3dm59xc9mn4utvZh5m7XYYgTdMUNeDovydgCy/iGl7ENbyIa3gR12hKDp6kwOpDPb85A8JALlYgtUXZ7oG7NyD6Ua/7DeD2HBi0JKIJiTx9Aqtd9mc3p8C0azuiZZEkVVnYJMXHDUOVHZulZk1kkyiJRHO0MFAyw9BGdEsiq50qJwrTrio3LiyR7R64f1e... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMgAAABACAYAAABfuzgrAAAJmUlEQVR4nO3dfUxT9x7H8ffhSbG3LU7sdJo7H0bRTCLo6sQ5luw2i25K5EYxatwiMxskLqjJ2EyM2aKLe8pmtj9uYCOOGHdDkKsRBZcNo+6iUVGbMMJ82lA3ZFwC8qiFYu8fx1YR7PpIH/Z9JabYc3rODz2f/r7n9zunVex2u50IoChKsJsgIlBUsBsgRCiTgAjhggRECBckIEK4EBPsBviL3W6nuQ+u9ELXANgiYuhBjLQYBbTRkDQGHo8DJVJGsf7ogzOdwW6... | 3 |
science | grade-3 | animal-adaptations-beaks-mouths-and-necks | true | true | Eurasian lynx are carnivores, or meat eaters. They eat small mammals and birds. The lynx's mouth is adapted to tear through meat. Which animal's mouth is also adapted to tear through meat? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEKCAYAAABnkCFsAAEAAElEQVR4nOydd5ydVZ3/30+7z+19eslMZjKpJCEkhI50QhMFREBRrCsWiqLs2hZxdS276iIqRVdQ3HVhQVBY6cWEEhLSSZ/MZPrcub0+/ffHnRkSWoIbwfV336/XfSX3aec8557nmc/5nu/3ewTHcRzTNLFtmxo1atSoUaNGjRo1avzfRBRFZFlGMAzDqYn7GjVq1KhRo0aNGjX+7yOKImJN3NeoUaNGjRo1atSo8beBbduI73QlatSoUaNGjRo1atSoceioCfwaNWr... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA88AAAEKCAYAAAAsMWftAAEAAElEQVR4nOy9ebglVXnv/1mrqvY8nXnuPj3TEzRNM8gkkwKCE6KIOIREjaLGIZpoojHGDPeq0Zt4HWO8iqAxqCgKCspMCwJNTzQ9D6fPPJ89166qtdbvj9rnQAtIc4PDzW9/nuc83bv23lWrqlatvd71vu/3FcYYEwQBWmsaNGjQoEGDBg0aNGjw/yZSSmzbRgjx+25Kgwb/LZENw7lBgwYNGjRo0KBBg//30VoTBMHvuxkNGvy3RTYM5wYNGjRo0KBBgwYN/nv... | 0 |
math | grade-4 | compare-area-and-perimeter-of-two-figures | true | false | Which figure has a greater perimeter? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK0AAACkCAYAAADloK6LAAAMPUlEQVR4nO3dUUwc1RoH8P+wu3SBpWULXRgWqW1kjdTcQtTWmmAachNsjUlLQoEGE1+MsZKGiqQPRu+Dpq2GxPTGm6Ym1hovhppWk/al8eUmNuFB6yZYNFA3oaV0SwWsy5ZV2alzH9bZFliW2W2Hs+eb75eYBmcHvu3+ezjnzJkziq7r+sQcEIoB0TuApoOxnOJUgGIHUFMIlOcDysSfuv7tjOiyGDNn62rA+XMs8YWaDzxalEg0Y7kkegcYmQVuzAGXY0DejJY... | 0 |
math | grade-6 | absolute-value-and-integers-word-problems | false | true | Sidney's dog Sparky is on a diet to lose weight. The table shows the change in Sparky's weight each month of his diet. During which month did Sparky lose the most weight? | "iVBORw0KGgoAAAANSUhEUgAAAP0AAAB/CAYAAAAkTcQvAAAa5ElEQVR4nO3dfVwV1b748c/MfgRRQUh8VgQ94nNmGKI8nbRSM6zUyrJ7zaxu1zA9nTLLfnk0/d1fnqO30tOTnqyTRmlXEF6mkYZyMjNvagpmgCaCKKIQstmP8/tjy9YdKHvvwC3Mer9evIo1a2a+s9jfmTVrxr0kU7ZeQeWMcT9SmzvQ32EIQrMzJpuR/R2EIAjXl0h6QVAZkfSCoDIi6QVBZUTSC4LKiKQXBJURSS8IKiOSXhBURiS9IKhMi096Tben0d+8zd9huLk... | [
"May",
"April",
"March"
] | null | 1 |
math | grade-5 | acute-obtuse-and-right-triangles | false | true | What kind of triangle is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACUCAYAAACp1l47AAAbMUlEQVR4nO3de1hVZaLH8R93ETMUQVFsa1TYWIHuUqqDM9EUlWgjOmlzQpuy6aI1XrJRT2ZaWuI106zpSROaBqagVCYyCysajoTopg4lOlQoDgoiSCJy3eePkjQTL2xYsPb38zw8PK7Net/f6q8fby/vcrHb7XYBAAAAcAhXowMAAAAAZkLBBgAAAByIgg0AAAA4EAUbAAAAcCAKNgAAAOBAFGwAAADAgSjYAAAAgANRsAEAAAAHomADAAAADkTBBgAAAByIgg0AAAA... | [
"right",
"acute",
"obtuse"
] | null | 2 |
science | grade-6 | match-chemical-formulas-to-ball-and-stick-models | false | true | Select the chemical formula for this molecule. | "iVBORw0KGgoAAAANSUhEUgAAAU4AAACbCAYAAAAN13JBAAA36UlEQVR4nO2de5gcVZ33v1XVPd3Tc5/MZJLJlVwggSRAeASCgg8BgiuK7gMKQXkexFdFsxpwH1lYfVlw1cVdFsEYQOVVUBCXy4IusO+LEBURWG4CCYFEQq4kmUwyl+6Zvtc57x9Vp86lqnq6k+655XzydLq77lP9q2/9LuecMiilFBqNRqMpG3OsD0Cj0WgmGlo4NRqNpkK0cGo0Gk2FaOHUaDSaCtHCqdFoNBWihVOj0WgqRAunRqPRVIgWTo1Go6kQLZwajUZTIVo... | [
"H2ON",
"H2O",
"HeO2",
"HO2"
] | null | 1 |
science | grade-7 | use-data-to-describe-climates | false | true | Which statement best describes the climate of Mexico City? Hint: Summers in the Northern Hemisphere occur in June, July, and August. Winters in the Northern Hemisphere occur in December, January, and February. Mexico City, Mexico, is a city in North America. It is located in the Northern Hemisphere. It has an oceanic s... | "iVBORw0KGgoAAAANSUhEUgAAAtgAAALOCAYAAACTXGSDAAD5L0lEQVR4nOzdd3hU55n///eZUe8doQYChIQoQqIIRDNgMLbo4ELciB2v7cRrkjjfFMfZ5Erx5rdZJ1mX7K6ziXFJXLABG9FMFV00CSGQQAiBJJp6L9Oe3x9CBwkJEGakEfb9uq7E6MyZOZ+ZczS655mnaEophRBCCCGEEMIuDI4OIIQQQgghxNeJFNhfQXp6OpqmoWkaSUlJjo4jvoFWrlyJpmmMHj36jh8rKChIv57XrVvX4TaLxYKfn59++9atW+/4eO0tX74cTdP... | [
"Summers have higher temperatures and slightly less precipitation than winters.",
"Winters have higher temperatures and less precipitation than summers.",
"Summers have more precipitation and higher temperatures than winters on average."
] | null | 2 |
math | grade-1 | subtraction-sentences-up-to-10-which-model-matches | true | false |
Which picture shows 7 − 4 = 3? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAXYAAABKCAYAAACvkX8HAAAOEElEQVR4nO3dfXAb9Z3H8bceLfn5IQmx4zwANgm1IQ+dhqYQKGkhQ5rSBmi4IcMVer2mzNzN3M3dTJh25m56N9B2yszdXGE6007vQiC9KdOQK4FAaKB5oCQxJLFjO8GxnRAndhw/68HSStrV3h+y5WdrZUuWrHxf/9i72v3p90n8/WolrVYmXdf1ziC0+MCjgaojhBBiHrGaIM8Cldlwix1MnQFdr3GnelpCCCES4Z58sDb7IguldliZE+n6Qggh5g+PBk2DcD0... | 0 |
math | grade-2 | even-or-odd | false | true | Is the number of unit squares even or odd? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAB4CAYAAADIUIXCAAADAElEQVR4nO3asU1jQRhG0fHKEdpgEwiICNhGqIIenGwz9EBPJI4cEBE5QpotYQPf9cDTOQ18/5OTq5F3c845ruzw+nHtyf/q5fnX6hMAAPgi9ivHH+5vVs5f7Hg6rz4BAIAv5sfqAwAAYEsENgAAhAQ2AACEBDYAAIQENgAAhAQ2AACEBDYAAIQENgAAhAQ2AACEBDYAAIQENgAAhAQ2AACEBDYAAIQENgAAhAQ2AACEBDYAAIQENgAAhAQ2AACEBDYAAIQENgAAhAQ... | [
"even",
"odd"
] | null | 1 |
science | grade-7 | 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? | "iVBORw0KGgoAAAANSUhEUgAAAmwAAAGZCAYAAAA0Im0SAACXq0lEQVR4nOzde1xT9/0/8FcIlxASUEEwAe+SWLViDd5aq2jvk9h+e9lKurbrVonrun3bQvfdejN0XffdCrX79jKD/W2tbaEXt7YGu64306vaBhVbbQPiFYIoKBDuJHx+f2COOVwkQK4n7+ejFHJycj6fILx5n89VxBhjCGONjQ04evQYuro6IRKJAl0dQgAAUVFRSE5OwZQpUwJdFSJgFP9IMKL4N7jIQFcgkHp7e1FXVwfGehEdHR3o6hDC09jYAIVCgaioqEBXhQg... | [
"sample A",
"neither; the samples have the same temperature",
"sample B"
] | null | 2 |
math | algebra-2 | find-solutions-using-a-table | false | true | Look at the table of values for the functions $f(x)=\frac{5}{2} x-3$ and $g(x)=-(x-2)^{2}+4$ Based on the values in the table, where does the equation $f(x)=g(x)$ have a solution? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADhCAYAAAC9ZMGZAAAduklEQVR4nO3de1hVZcL+8ZtzGgrhkSFJyBQ8NZpioUQ6pr1Wr9PPQ2rBmIdxStPmmnQaK0QNy8bKtFI6qoWROqWZeJ4sysTK0kqt3sScDBMrhY2kJvv3xwoIQaAJefZ++n6ui2ttnn26Wfxz72c/ay0ft9vtlkkzLzX69rU2frX0+PWmU9TMW3JW5d6dphMAAAB4PV/TAQAAAADUHQo+AAAAYBEKPgAAAGARCj4AAABgEQo+AAAAYBEKPgAAAGARCj4AAABgEQo+AAA... | [
"x=3",
"x=2",
"between x=3 and x=4",
"between x=2 and x=3"
] | null | 3 |
math | grade-6 | classify-triangles | false | true | What kind of triangle is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADUCAYAAACmjlRXAAAa/UlEQVR4nO3deXiU5b3G8TsjmSQjOQyeNAYkLJHNiDGs1o0q1FqVqqAgIAUmxIVFZAmJCYiop61tXassRZRYxaLYqz2Xy5EeidtprYKCscqSjQiVqAEHghSzTM4fYcYACclM3pn3nZnv5y+umcn7/i7/un2u536emMbGxkYBAAAAMITN7AEAAACASHJSwN67d6/S0tL0xBNPmDEPAAAAENZiTtwi8uabb2rUqFGSpJ07d6p///6mDAYAAACEo5NWsAcPHuz796xZs0I... | [
"equilateral",
"scalene",
"isosceles but not equilateral"
] | null | 2 |
math | grade-7 | identify-alternate-interior-and-alternate-exterior-angles | false | true | \line{LN} and \line{OQ} are parallel lines. Which angles are alternate exterior angles? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADSCAYAAABw17dKAAAhN0lEQVR4nO3df1DUdeLH8dcHJNpSgco7clHBH4k/wlUQ9PIC7pL0ri5oTjGdgu6uObq6i/Cain7RfMPxurT1mrS5mlxmztK4O8i8TusPl0qizsX1R6j9QEy4q4lcwnLTdeH7h1/5xin9YBc+7O7zMbMzyRven1duO7589/68P0Z3d3e3AAAAAARFlNkBAAAAgHBCwQYAAACCiIINAAAABBEFGwAAAAiiIVmwHQ6H1qxZM6DXaG5ulmEY2r59+1nXvvDCC7V69eoBvT4... | [
"\\angle{OPR} and \\angle{NMP}",
"\\angle{OPR} and \\angle{LMP}",
"\\angle{OPR} and \\angle{NMK}",
"\\angle{OPR} and \\angle{QPR}"
] | null | 2 |
math | grade-2 | greatest-and-least-word-problems-up-to-1000 | false | true | A video store clerk looked up the number of movies checked out each day. On which day were the fewest movies checked out? | "iVBORw0KGgoAAAANSUhEUgAAAWkAAAC9CAYAAABxo4zDAABJg0lEQVR4nO3dd3xP1//A8dcne89PBGkiVpugVswqYpUSJGrVqIRWtUbRL4n+jNIaDUVRDW0JVbO1R6mQKGKLhFohiRWSIBHZ+eT+/vjIlY/sJVHn+Xh8Hsnn3nPPPfcz3p9zzzn3HkUXv4YSgiAIQqWkA/B5z4kVXQ5BEAThBct3LUSrogshCIIg5E8EaUEQhEpMBGlBEIRKTATpcpKUqcunIV2YGOZKUqZuRRdHEIRXlAjSJXDycTU23X2rwOB7MVFJTJoREcnmLL3... | [
"Wednesday",
"Thursday",
"Tuesday",
"Friday"
] | null | 1 |
math | grade-4 | estimate-angle-measurements | false | true | What is the measure of this angle? Choose the best estimate. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAA/CAYAAADaDb8WAAAEbUlEQVR4nO3dXWiVdRzA8d8RIZ1TB/Mt0F5uQogkL9263BERIne1SdGN4AzyqpeL3iBICjMKhMLC8CJwgqBBLHGjuzOhCyvxQim7MMEIhk23syt7ujg13Zxz6naet8/n6vA8F+fHc/X9/3n+51SSJEkCAACYF4vSHqBZLtTOxeChE2mPAQBAwS1Oe4CFVB8dix++/i5OfX48JkbH4tUj76U9EgAABVfIwL58/lIMfXkyav2Dk9eWtbXG5u0dKU4FAEAZFCqwa0dPx+B... | [
"90°",
"120°",
"15°",
"45°"
] | null | 3 |
math | kindergarten | fewer-and-more-compare-in-a-mixed-group | false | true | Are there fewer triangles or rectangles? | "iVBORw0KGgoAAAANSUhEUgAAAQ4AAAA2CAYAAAA273fRAAAEbElEQVR4nO3dv08bZxzH8c/VBJsLwQECLIWtsBSllYjUILI0ljqUZGgHOjbdunTv0D+hS5f8B93avVKVsYrUoVWnirFpEgwOFsHYBmO7g4tDGwO+H8/zvaD3a/PpfM+d/NFX1t1zzzfodrtdAUAEb1mfAIA3D4UDQGQjcb60+VtTPz7c7X/OjwWam78ycN+FpfzA7cXpnIo3Xh/+vGMBp5FDO7EKx2Gj87/PXf21eTRw37O2D2t2/oq++GYm0TGi+PSnr/RL+Xfn46z... | [
" rectangles",
" triangles"
] | null | 1 |
math | kindergarten | count-money-pennies-and-nickels | false | true | How much money is there? | "iVBORw0KGgoAAAANSUhEUgAAAQYAAACDCAYAAABvP7XjAACKUUlEQVR4nOz9d3Rd53nni392Pfv0goPeKwGCvXd1yeq24zQnsWeSeJzMTTKJk5nJjO/vJpOZzJo1LRnfVCdOHPc4jmVblmRVShRFir2DAEgCRAcOgNPL7vv3xwER69pJJMuWaJPftc5Cx9nPs/f7fZ/+Cp7nedzGbdzGbXwbxHf7Am7jNm7j5sNtYriN27iN78BtYriN27iN78BtYriN27iN74D8bl/ADwKWXqFUKmEYOpVSCds0KKcXMB0PWZbxReIEAkFC4Qiq5ic... | [
"14¢",
"13¢",
"15¢"
] | null | 2 |
science | grade-2 | identify-solids-liquids-and-gases | true | false | Select the gas. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKUAAADCCAYAAAAo2gI4AABUuklEQVR4nO39eYxk2X2YC37nnLvGjX3JPSuXqqy9a+nqlWyuzUUURdEmqSdZhgQ8w/LDPBiegTUGDBsDDGD/MQ8DG5I1gAd6lP1MeaxnUZZEUiKlbpLNbva+VS+1r7mvkRn7ctczf0R1S6Qlc+vqTkrxAYnIvBEZcW/EF2f9nd8RLzW0PuJBRjFkyLtKK4arHdgIoGDAI/nBcTkUcsh7RUbBEW/wezv+i+NyKOSQ95K3/Av1XxyT782pDBny1zOUcsi+YyjlkH3... | 1 |
technology | grade | icons | false | true | This is a(n old) logo of which famous app or program? | "iVBORw0KGgoAAAANSUhEUgAAATUAAAEsCAYAAACixiRXAAAp2ElEQVR4nO3deZhU5Z0v8O9Zau/q6p1ulgZpQBAUBBlZryGKcUGNDiY6EBKTDCZ3YrwTM5lxnJvr5Ik3TjSZ8cas40QHNWI04i5iDHKVgIMioKzS7HQ3vW+11zln/nireqH3rqpTVae/n+fhobu6qHpZ+su7/6QPdx2AVegwDFVRMt0MopwS0zTIkKRMtyNV1Ew3YKSi0ajR0NSIs+fqUVtTg7rGZpxrbEKrP4SOYAihQBAdMSPTzSTKCV5VgtPtgtflNAo8TowrKUZ... | [
"Google Gmail",
"Airbnb",
"Adobe Photoshop",
"Norton Security"
] | null | 2 |
math | pre-k | fewer-more-and-same | false | true | Are there more pieces of paper than pencils? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEECAYAAAASx0PMAABIuUlEQVR4nO3da5Bk93nf9+//f87p23TPrXvue8ECBHEjCIIkKFK8gRQlKpZjiaRsy3ZckculilOpVMqU8yaW36TKssuWK65yyhVRkiM5jiRKluxYKSmWRIuiSJAgeCdxXWCx2N3ZnZ37pa/n9s+L090zszu7uGwvphv7+5QEzs70dJ/p582vnn7O8zfOOYeIiIiIiAyEPe4LEBERERF5K1HAFhEREREZIAVsEREREZEBUsAWERERERkgBWwRERERkQFSwBYRERERGSA... | [
"yes",
"no"
] | null | 1 |
science | grade-7 | identify-rocks-and-minerals | false | true | Dolerite has the following properties:
solid
no fixed crystal structure
not made by living things
dark-colored
not a pure substance
naturally occurring Is dolerite a mineral or a rock? | "iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAACyKklEQVR4nOz9+ZPj95nnB75w30DiRgLI+76qsu6bLB4SKXEo9cx0z7RiZrrdMRt2/+YNh+3YiI3wrnfDEf4PZsKeHtuj1mhGalGUREmUeBfrPjKz8r4zkUAmkIn7voH94YvvR+R0m902Ram9kU8Eg6xiViWQ+D6fz3O8D0W73W5zGqdxGn9jKH/fL+A0TuPvc5wmyGmcxhfEaYKcxml8QZwmyGmcxhfEaYKcxml8QZwmyGmcxhfEaYKcxml8QZwmyGmcxhfEaYKcxml... | [
"mineral",
"rock"
] | null | 1 |
math | grade-2 | skip-counting-stories | false | true | Each pond has 2 ducks. How many ducks are in 3 ponds? | "iVBORw0KGgoAAAANSUhEUgAAAVcAAACLCAYAAADVutr4AAAbY0lEQVR4nO3deVhU9ffA8fewi7IouIXihoL7jqgJmrlXpqJYppappSIm5rcylxRc0jIV0MrUtNRcEv2VCUi55Eq55oKKJK64kCubbL8/kNERUJa5XBjO63nmeWDudmY4nPnM596Zo4lMT8pAiGKu/+J5AGwYPVHlSIR4vv6L52GkdhBCCGGIiqS43kvJoHNYEn12JHMvRQbKoviTnBWFVejiGn4tjcDIlGcmYMStdK4kZHD6bjqTDqcU9pBCFIrkrCgKhSqus/5Jwfv... | [
"10",
"14",
"8",
"6"
] | null | 3 |
math | kindergarten | equal-sides | true | false | Which shape has 5 equal sides? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAHJUlEQVR4nO2dv28TSRTHv87amxADd3YUToZEwiI5UApaWiqKiJa/MEqTdAilQBR0kSijNBwWQkjWJdH5OOL8MrHZK0wQnDjAu/PevJn9fjoIJqOdj9+zvzs7U8myLNv7AHROgP4IGGYgpDDVCnAlAZZngd9SoLI3yLIXh76HRWLm3lWg+upk/IdWCtyujy0kpCj9EfDyGPjzA/DHCTB1OBz/gJIRl1xJxk4BwNEImBp98QNCXHLh1HkGTPkdCikLFI2oQNGIChS... | 0 |
math | grade-7 | bases-of-three-dimensional-figures | false | true | Look at this figure: What is the shape of its base? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADECAYAAAClWFbMAABNQklEQVR4nO29ebxdZX32/b3ve6299zknc8hAyMQsiojIqChVwQFU0GqpoNYWHKjY0Vbtg7bq+7a+rW1t+/Rtnzrbimit1qoVax1QnJAqg8xjCBBIICQxIcnJ2et+/riHde9zAg6cnHMSry+fk733mtfa/1z7x/W7fsZ77xFCCCGEEEJMCna6L0AIIYQQQoh9iV8Ygf3pq6/k3L97B/OOP3K6L0UIIYQQQuzDmF8Ui0h3/0WM3vcAxjme81uv4dK/+ofpviQhhBBCCLE... | [
"circle",
"decagon",
"square",
"rectangle"
] | null | 0 |
math | grade-2 | match-digital-clocks-and-times | true | false | Which clock shows five forty-five? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMIAAADICAYAAAC6ej5XAAAOhklEQVR4nO3db3AU52HH8e9JQmB0QKCAjiamAQnjDLHvVDvNjCXFSWYSadImkwQ8bmiCyIxhMhJNAsSiM7XwGPqiUiZ4prXkGmc8Bv9LXcELPGnv6DhNQGoc3BTJIXExd05CXHwCY4y0J5BAXF/Idz6dCtze7Z/T7e/zhtPo9nmeQ/vb59lnn93zJZPJZHwcoqMwMgFXk4iUvAofzCuHVXOhuhJ88bFk8tiw280Scc8n50PFqdHJH5ZVwuqqyZSIlLqRCTiZgLf... | 2 |
math | calculus | determine-continuity-on-an-interval-using-graphs | false | true | Is the function f(x) continuous on the open interval ( – 6,4)? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAAB7OklEQVR4nO3de3xU9Z0//teZMzOZXJmQhCQGEu5oMEFRVBBEF29bqxasi+1Xrf2qu3Zr3Xbbftdfv7Xf766s635b262Xbret663dbaX1igaKBYEGFYmQkIAQEUIC5DLJzGTu5/r7I0xMIMAMnA8nk7yej1qdyZz3vHPOzJnXfPI550imaZogIiIiIiJLOOxugIiIiIhoLGHAJiIiIiKyEAM2EREREZGFGLCJaJgNGzZg6tSpuOmmmwAAN998M1599dURH6uqKq644gq... | [
"no",
"yes"
] | null | 0 |
math | pre-k | count-pictures-up-to-10 | false | true | How many lions are there? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAE0CAYAAABZ4EexAAC9IElEQVR4nOz9d5wk913g/78+VZ3jTE/eSTtx8652tVGSJVmSZZxtDBgwYPsI5ueDr22i4eCO4wgH2MD97suBMRwYy3ccdz4HDLawseSglVZpc5q0Ozn1dE/nXJ/vHz3Ts6OdzdOr1er95AGa0KG6+jVN1VbV56O01hohhBBCCCHEXcF4tRdACCGEEEIIsX5kA18IIYQQQoi7iGzgCyGEEEIIcReRDXwhhBBCCCHuIrKBL4QQQgghxF1ENvCFEEIIIYS4i8gGvhBCCCG... | [
"10",
"1",
"9",
"2"
] | null | 2 |
math | grade-5 | range-find-the-missing-number | false | true | Cody has the following data: If the range is 9, which number could z be? | "iVBORw0KGgoAAAANSUhEUgAAAVkAAAAkCAYAAAAjOUlwAAAIyklEQVR4nO3df1TNeR7H8ee93UqRIioxM4VR+ZUfg01EDEaD2BXOOItlWMRi7LB2WL+NmbV+rOPHsOtg/Ci/GzuTH2v8HiGOn8tBVutXEkqp1L33u3+kSEXx/d57c96Pc+5xzuf7vff7Ou/zOW/f3+kURVEAcsxGMnOzMSlmFIQQQpSVDrDT6XG2r4CD3pA3piiK8sT4lCzjU+umE0KId4izwRFngyOGXLNJGqwQQqgs0/gUe70d+kxpsEIIoYlMYw56o9lk7RxCCPF... | [
"41",
"30"
] | null | 0 |
science | grade-3 | identify-minerals-using-properties | true | false | Select the one substance that is not a mineral. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANcAAAEYCAYAAADPtGNgAACLdElEQVR4nOy9ebxtWVXf+53NWms3p7ldVQGFDSVQNJJCGhE7RCRGUTSimDxs4IMflWhCSNSnT/LB9wkv+szD5+eZSF7gSUCUGE2iqNjFj4otUELRC0X1BdXXvfd0++y91pzj/THmXGvtffa591bVPdQtskd9bu199urmWmuOOcb4jc6876zI1WNYd6xoRSt6ELQd4BO7cMcMjnv4ymP6u10x1opW9NBo3cHVY/2+E7rf7YqxVrSih06Zj2rpfrMPz1BWtKLPfVo... | 0 |
math | kindergarten | flat-and-solid-shapes | true | false | Which shape is solid? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAALBElEQVR4nO3dXYxcZR3H8d9zzszsS3e7u91t6UJhEdpqtVAtkqZGCqFoFIOREK8E4o3RxKCJEK+MiZroDUYiXEh8CSkkkkAiFkUjVgWVlxpAiIi0JdBtZbbdne7sS2d358w5jxenu+24tmzLnvmPne/nZmbOvDz/bfrNmZkzu+O8936kKh2oSFOxVPMCkJGck7pDaUOndEFBciNz3u+dtB4LaD3bVkq5/ZX0wmBBeu+KtE4A2ZiKpdePS8WqtK8iBZO19AriA7L... | 0 |
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