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-5 | identify-trapezoids | false | true | Is this quadrilateral a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACFCAYAAABhXI8FAAAOS0lEQVR4nO3d62+c5Z0G4J8T20k4N5ukEHIq3eUkql2JlAYIhy6VWO32A63KVqiwbKFVt/13ViJAG4eEELIEKLDAEokUHBIIkldQATE5cob1IT6O7bEzntkPgGcmgSSOZ+add+a6PpnnSx5BhG/bt5+7pVAoFAIAAKiIeUlfAAAAGomADQAAFSRgAwBABQnYAABQQQI2AABUkIANAAAVJGADAEAFtSZ9ARrDW13j8b9vjsXChS0xb37St+FsZEbzsXhJW/ziru8kfRU... | [
"no",
"yes"
] | null | 1 |
math | kindergarten | count-money-pennies-through-dimes | false | true | How much money is there? | "iVBORw0KGgoAAAANSUhEUgAAAL0AAAA/CAYAAAC1r8njAAA3V0lEQVR4nO29Z5Rd13Wg+Z2bXw71KueMQs6RYBZJkZQoU7IVrLZmnOTU7rZXu3va7hn32D1es2amp9thbI9sqRUsSy1LVGASCWaCAAEQORaAQgGV43v18s13frwiNF4mJTAAAk1uLKwqFNZ6db679z1nn3323kcEQRDwgXwg7yORftoD+EA+kBstHxj9B/K+kw+M/gN538kHRv+BvO9Eud6/IPA9qpUK5WKBUrFAfmmJytIiZdNCAmKpNLFkHdFIBCMSIZFIomoaQgg... | [
"2¢",
"3¢",
"4¢"
] | null | 1 |
math | kindergarten | more-or-less-likely | false | true | On which color is the spinner more likely to land? | "iVBORw0KGgoAAAANSUhEUgAAAbsAAABkCAYAAAAfdp5QAAAQSklEQVR4nO3daVRUZ4IG4LcEioIC6hZClBBQlmhckSq3qI0YYhKNieckE0Fj3CYz6fxIZ3W0kzmdOX36jElML3Nm0p3ppJMeF8TEdNYzsROBEtPGiFWgRpMgCIKiEbEuUEWBIDU/0jhRiqWg7v1qeZ8/HG7dut9bv97z3eW7Grfb7QYREVEQGyU6ABERkdJYdkREFPRYdkREFPTCRQcYDqezHXKLDNkuwy7LaJFlAIBBkmCUJEhGCZJBgl4fLTYoERH5BY0/36DS1NS... | [
"white",
"blue"
] | null | 1 |
math | pre-k | name-the-shape | false | true | What shape is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAB4CAYAAADIUIXCAAACnUlEQVR4nO3YsQ3CABAEQYxMD5RBJRRBYdREPwRPCXawyJI1E39w4eqXmZkLAACQuB49AAAAzkRgAwBASGADAEBIYAMAQEhgAwBASGADAEBIYAMAQEhgAwBASGADAEBo3Xv4+nz/uQPY8H7cjp4AAOzggw0AACGBDQAAIYENAAAhgQ0AACGBDQAAIYENAAAhgQ0AACGBDQAAIYENAAAhgQ0AACGBDQAAIYENAAAhgQ0AACGBDQAAIYENAAAhgQ0AACGBDQAAIYENAAA... | [
"triangle",
"rectangle",
"circle"
] | null | 1 |
math | calculus | identify-functions | false | true | Look at this graph: Is this relation a function? | "iVBORw0KGgoAAAANSUhEUgAAAQ4AAAETCAYAAADH+ejgAAAbGElEQVR4nO3dfUxU2d0H8O/lxRkYBFYWpNUVp9VCdcrLgyB0+2zUZptSsRvd7No0uzaYbrbbbtM/NNlN/zBN7Ta7jZu0WWzTf9Rim9Rt15rIPm5qu5hmU8CXOCgYbGsBcSsyugwow/A28/wxnTv3wvAyM/f9fj/JZofxejlB+HLO+Z17jhAOh8MgIkpAmt4NICLzYXAQUcIYHESUMAYHESWMwUFxBYNBBINBvZtBBsXgoLi8Xi+8Xq/ezSCDYnBQXO3t7ejo6Fjwz5u... | [
"no",
"yes"
] | null | 0 |
math | grade-3 | acute-obtuse-and-right-triangles | false | true | What kind of triangle is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACcCAYAAABFhdxWAAAbOklEQVR4nO3de1zVZaLv8e9asLgJeOEOQhhqXklsDJChQ3HUyhkxhzTRSU412DkNY021a+xi2m32cc7eY1F7zG6cphFthu0xbGbY7aFtMt6OMkk67iLFqFAIIZa0xIVr7T9I0rxxWWv9FvB5v169wsVaz/Ndr/75+vT8nsfkdDqdAgAAAOASZqMDAAAAAAMJBRsAAABwIQo2AAAA4EIUbAAAAMCFKNgAAACAC1GwAQAAABeiYAMAAAAuRMEGAAAAXIiCDQAAALgQBRs... | [
"right",
"acute",
"obtuse"
] | null | 1 |
math | grade-7 | make-predictions-with-scatter-plots | false | true | Based on the scatter plot below, which is a better prediction for x when y = 7? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFhCAYAAABK/t0lAAAhRklEQVR4nO3dfXCV5Z038F9IkGAiJmgUUAQGRJKUl5ilKzjY6jPd1irT0cXqPqVVUCplfZnZVafbdit2p2VlXLviunWqFenOzmOlW9Z11OpO1ZbpQtVIEMGXQAmLAhXbBDhgsIHz/EFJpRAIOXfOnUM+n79y7ptzrm+AyfnmOtd93UXZbDYbAABAIvqlHQAAAE4kCjYAACRIwQYAgAQp2AAAkCAFGwAAEqRgAwBAghRsAABIUN4KdltbW7S1teVrOAAASEXeCnZjY2M... | [
"6",
"10"
] | null | 0 |
science | grade-2 | natural-resources | true | false | Which of these pictures shows a natural resource? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAV4AAAElCAYAAACszooYAAEAAElEQVR4nOz9V49sWZqmiT1rra2FaXPtR58QGREZKbqqurtaVqMH0z1kkwAvecdfwx/Ce3IuhqI5PV2iS6bOEBkn4mjXps22bb3XWrzwHMxNESxkc+7yAxxwbBhgBvdtz/7E+71L/GRr7YcxpIrfx+/j9/H7+H38/zEyDS9yuGlg6MA/G9xfl7+H7u/j9/H7+H38rxOpgg/j+9/3+n+5Ln8P3d/H7+P38fv4Xy/+Z8a29n+55vx9L/w/fPzvCI9P+I9v33P43/y... | 2 |
math | grade-2 | purchases-do-you-have-enough-money-up-to-5-dollars | false | true |
A bag of carrots costs 1 dollar and 97 cents. Do you have enough money to buy it? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAFlCAYAAACeMpzjAAEAAElEQVR4nOy9eZwkdX3//1yWoxpW+BRnl6jsB4VYgwfdgjCtottI1EaRzHjkNwOoOzw8MmuM7vgNugsqzqKJM55MNJHBix1UnCEe22gCvXj1GCPdSGTLKPJZTaTai/qgQhewUr8/PlXV3XPszgLKSur1eMx0d9XneH+uqvfn/Xkfq6IoisiQIUOGDBkyZMiQIcOjAvs90gRkyJAhQ4YMGTJkyJDh4UPG4GfIkCFDhgwZMmTI8CjCw87g6/sj5Nd+S6H2O/T9mfZPhgw... | [
"yes",
"no"
] | null | 0 |
math | pre-k | subtraction-sentences-up-to-5-which-model-matches | true | false |
Which picture shows 3 − 2 = 1? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAABKCAYAAAAi2W96AAARYElEQVR4nO2de1BbV37HvzwEktADZCQB5hEwAmxsFwx+4GfXzmywvVlPG7ukJRl789i+NtPutNPHbLudZLrd/LHZdjvTmXSnbrx1SY0Tb5LNjrGTtZ01NmDMyzZgQAIbEA9JWOgBeiCE+sflXuneKwkMVwYp9/OPfc49upyffl9+95zfOfcQ5/P5fJNzgM4B2L3AvA88POuOxDhAmgBoxIA6CYibdPt8rba17hYPz/LZLQMStQ6ikJkEFKcQqubhWW/YvUD/LDA... | 0 |
science | grade-3 | compare-properties-of-materials | true | false | Which would stretch more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKUAAADCCAYAAAAo2gI4AAA3V0lEQVR4nO2dd5hcZdmH73Om1+2bRkIgEAhFamgSOogJPaAgCiKKKKAgTZqgIkVEEfwAP6XzSUAUpIUioEgPxUAIgSQkgfRsm17Peb8/njOZ7Ts7O7M7m8x9XZPdnD1zzjszv3nL8z5FmxdSajsfBGxUqTKsRAz4JAZr0lBnh/1r5bheFWSVkSJgg+188nvUyB/Xq4KsMpLk9JdR+WP6yDSlSpW+sY90A6pUENkIhP8N6U9ArwX//uDZFrTh7buqoqwipFuh9Vf... | 0 |
math | algebra-1 | compare-linear-functions-tables-graphs-and-equations | false | true | Function A and Function B are linear functions. Which statement is true? | "iVBORw0KGgoAAAANSUhEUgAAARAAAACZCAYAAADnwmWxAAAZ8klEQVR4nO3deVRV9d7H8fc5DAdRREVNUATUAs0BFT0aDldydt0ccaggy2w9aaXdi16HvLa0uomWQ4beStPUshxS88ELq6uiPAqaOZtDOZQDF0dGmc75PX94OXVi3gIb6Ptai7U4e++z9/fA3h/277c3+2dQSimEEEIDo94FCCGqLwkQIYRmEiBCCM1KFSANGzbEYDAU+XXs2LEKLrP01qxZg8FgIDAwsNK3HRcXZ/uZdOrUqdK3/0dw6tSpYvfFevXq6V2infHjx2M... | [
"The slope of Function A is less than the slope of Function B.",
"The slope of Function A is greater than the slope of Function B."
] | null | 1 |
math | grade-7 | perimeter-and-area-changes-in-scale | false | true | Look at this square: If the side lengths are tripled, then which of the following statements about its area will be true? | "iVBORw0KGgoAAAANSUhEUgAAACEAAAAOCAYAAAChHnWMAAACI0lEQVR4nO2UPWgiURSFjxsHxAyoTQqDELAYBgU7wc5SxiYQBCOBVMFGCARSCgrBQkivWNjaiI2VjYVFsJEERSKGdCJkCP5MwhD8OWmyw7qz67KwS7bYU71z73mXr7jvWUgSn6wvnw0AfECoqopIJAK/37/R1HUdJycncDgccLvdKJVKfwdC0zSEw2EEAgFTM5fLYTqdYjQaodlsIp1Oo9fr/XkKTdM4HA7ZarXo8/n4rWRZ5s3NjeEvLi6YyWT4vSaTCWOxGD0eD2V... | [
"The ratio of the new area to the old area will be 4:1.",
"The ratio of the new area to the old area will be 27:1.",
"The ratio of the new area to the old area will be 9:1.",
"The ratio of the new area to the old area will be 3:1."
] | null | 2 |
math | grade-8 | identify-linear-and-nonlinear-functions-tables | false | true | The table shows a function. Is the function linear or nonlinear? | "iVBORw0KGgoAAAANSUhEUgAAAFYAAABeCAYAAAC5BeOaAAAJq0lEQVR4nO2ca0hU3RfGn7TJ1EmtUBwiHS11YjQyzEFKLZXpzVLLNLVwCKSsiC4UQ1lYdjWTLAvNSs28JEp9qfdNp1LDEItAuieJk1lUU4l4S5vL/n8Ih6Yx09PZXf7sH/jBtffZz+KZM3v2eJYLFf9Wk7+BvyVPQr7kagEGFZixlGDGUoIZSwlmLCWYsZRgxlKCqrFPnjxBXFwcJBIJ/P39ceDAAeh0OpqSZuj1epw9exYhISGQSCQICQnB6dOnodfrjXP6+vqQmpo... | [
"linear",
"nonlinear"
] | null | 1 |
math | grade-8 | compare-linear-functions-graphs-and-equations | false | true | Function A and Function B are linear functions. Which statement is true? | "iVBORw0KGgoAAAANSUhEUgAAAjcAAAGlCAYAAAAGbtd7AABO30lEQVR4nO3de3yT9d0//lcOTZMmLS2BlEILtLgi2kIRsEUsDBxy0nniMHWI3FN2bzLF45xu7Pbwc+pk6ibqF8+oE0Ump92K9woICKW6aa0KVUkDLV3TUpo26ZVzrt8ftRmFtkl6pUl68Xo+Hj6Q5Mo774R3Pn3lynWlClEURRARERHJhDLeDRARERFFE8MNERERyQrDDREREclKWOFmyJAhUCgUPf73+eef93Ob4Xv11VehUChQVFQU8/v+6KOPgs/JBRdcEPP7J6L... | [
"The y-value of Function A when x=\n–\n4 is greater than the y-value of Function B when x=\n–\n4.",
"The y-value of Function A when x=\n–\n4 is less than the y-value of Function B when x=\n–\n4."
] | null | 1 |
math | grade-7 | apply-multiplication-and-division-rules | false | true | The number line shows an unknown number, b. Is b 3 positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAGdUlEQVR4nO3dT0yTeR7H8U9bnwItRBsoLsnAMF52l5i4KlYwHpzMYWZjPMB4Meu4Jmbd1Zj1aPYwN0PihexBE008mQ3xVA8mZvY0qU4ytIBuXQJ6kYrzJ4g6O2P//+HZA7QDkX9K7dM+vF8nnqc9fJKnST/8+n1+j8M0TVMAUEOGhobkcDh07Ngxq6OgQrjmAGrJFqsDAMDbevbsmdURUGFccwC1ZN0FO5fLaWxsTOFwWK2trawiVLG5hKmf/v1ayYm0kpMZ1X1oyGj... | [
"positive",
"negative"
] | null | 1 |
engineer | grade-8 | laboratory-safety-equipment | true | false | Select the gloves. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAPoAAAD6CAYAAACI7Fo9AABAqUlEQVR4nO29d7xkV3Xn+1t7n1jp5tutbrWkVkAoWiCSQTIIcCAZbEsyfgSPnGTGHzx+DoOfx++N7LE/H489Hg8ef5jBCLAxPH9o0mOwwRpjJIxsgxCSLBEkJNTKHe69fWPViXuv98epqlvh3Bwq9P7yaVTnVNU5q+456+y1116BsEucDoK/JOCdu3W8Nfgr5XnvOkhU3ePzGAxDBe3GQWaq1WshxD0AxG4cbz0Y+CYR3TjleY/s9bkMhmFhdxRTiD/YtWNtAAF... | 0 |
math | grade-3 | coordinate-planes-as-maps | false | true | What is at (8, 5)? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFjCAYAAAAHNnwuAABU/UlEQVR4nO3dd5yU5b3//9ddpm2nLGUBKRYEFBFUjIoCdmOJlRjNMWpU5FhicoyexDTj9xxNNGoSNdFEf0lEjSYHiS2iInZNXBUbSO+7wPbZ2Wl3+f2xMDruAgs7MAvzfj4e98Odmfu+7s+MzMx7r73u6zJ83/fpgZpbYiRS6a3u47oe9U1RVsfDjOhfxP4DSzOPvbs2zpsrohze12dgqUUwaHfpvMVFYUqKwt2qXaTQtUTbSG7j/bvNNlrjxH76Xww+GBLLV7Nhfpq... | [
"office supply store",
"science lab",
"locksmith",
"hospital"
] | null | 2 |
math | grade-1 | read-a-calendar-ii | false | true | What date is 1 week before December 20? | "iVBORw0KGgoAAAANSUhEUgAAAssAAAF2CAYAAACYtNXtAABcdElEQVR4nO3de1iUdf7/8SfDSUEBOXsWzydEJfOARJnlKWvX3L6rudtmVnbaWvtpLmWHLXPLjtZutlut2UkzN0Wt8LSg4CEVRcUjoiIinhAUkOPM7w9klOC2QYEBfD2uy0uY+56Z97y5Z+Y1n/tz3+NgsVgsHIiB5Hg4n4GIiIiIVAOPQOgYBp1vtXclch0cLPv/Z+HcMeg2DBwcwWKxd00iIiIi9ZuDA1hKYE80NGsFXW6zd0VyjUwkx5cGZUwKyiIiIiLVwWIBTNB... | [
"December 13",
"December 6"
] | null | 0 |
math | grade-1 | subtraction-sentences-using-number-lines-up-to-20 | false | true | Which subtraction sentence does this model show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABhCAYAAADsidaRAAAWbUlEQVR4nO3de1BTZ94H8G+4mUWuKqh0KRG6YLEIXiqg28XLaO9V18pqp1Nx19ra3detdhxr6061ZVdbe9EpnU7dzqy1LY6KC9buOvq+VoJT5CKCrjLarRqQBiwBgwkXIZL3j+MJRFQSPHDOCd/PTCbJSSb+fhI43zx5znM0drvdDiKSTbUVWPR/wPGfgdL5wOQwuSvqG/ZBREQk8JK7AKLBbL8BSMoRQp2asQ8iIqIuDNhEMrnWDiz4X2D1eGBLitzV9B37ICIicsa... | [
"9–5=4",
"10–3=7",
"7–4=3",
"7–3=4"
] | null | 3 |
math | kindergarten | cylinders | true | false | Which shape is a cylinder? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAWTUlEQVR4nO2dTXAbx5XH//ONjwFIAqREyinCVWtqbUm7VZZcG/sg+aKtWHFyWPuQS5zLHuTr5hzfkrOv0WFP9iUHabeSiuRUJQdTh01SFlW1pY9E8lYZrDIJmQAoAIMB5qNn9tDoIUBCIiXOYGaA/l0kQSTQmP7Pm9evX78n+L7v12zgaxPoEMD1weEkDlkAChKwlgNOqoBQs3z/r+24h8XhHJ3vFwH5sUn/saIC/5inquZwkkaHAH/vAts28MgExLZL/4OLlpN... | 2 |
math | grade-8 | identify-trapezoids | false | true | Is this polygon a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC3CAYAAAAo7imjAAAa0ElEQVR4nO3de2ycdX7v8c8zV9/t8XU83iS2Ew6iLb2AVLo6iIJ2lRZptZSCxOGcbVNQW0S7SYhJIZuuCOEsSWCDAywt4uyeAhU6K05Z0cNBQkVbbeBwSheJaLtQRS2xndtcbI/tsT2e8Vyf/uFkngxLnNge+5nL+yWh5Pnaz/gTK0M+8/g3z88wTdMUAAAAgJJw2B0AAAAAqCYUbAAAAKCEKNgAAABACVGwAQAAgBKiYAMAAAAlRMEGAAAASoiCDQAAAJQQBRtVKfh... | [
"yes",
"no"
] | null | 1 |
math | grade-1 | interpret-bar-graphs-ii | false | true | Mark went to a garage sale and saw some coats, irons, umbrellas, and telephones. He made a bar graph of the items he saw: Which item did he see the fewest of? | "iVBORw0KGgoAAAANSUhEUgAAAl0AAAFfCAYAAAB0onm9AACe0ElEQVR4nOzdd5xV9Z3/8dfpt9/pQy8CCqgIYgsGpYiaGDXdJCariSlqjCW7SdyY3Zjd/JI1ZVfNGqNuFE2xxMQaTTQqdjEOIijY6GWAqbff039/3GGAKMgMcGeEz/Px4MHce8+553u+DHPf8/1+z+coYRiGCCGEEEKIfUod6AYIIYQQQhwIJHQJIYQQQlSBhC4hhBBCiCqQ0CWEEEIIUQUSuoQQQgghqkBClxBCCCFEFUjoEkIIIYSoAgldQgghhBBVIKFLCCGEEKI... | [
" umbrellas",
" telephones",
" irons",
" coats"
] | null | 2 |
math | pre-k | tally-marks-up-to-10 | false | true | Count the tally marks. What number is shown? | "iVBORw0KGgoAAAANSUhEUgAAAMgAAABBCAYAAACU5+uOAAAJWUlEQVR4nO2dTWwbxxXH/0MuJRqtZEmBVYBCyQA62ChsqwHqAAUqGz30aBstkJvNQ9EAPdS6NEfrZN0KX1IDOTi5yDn6UuVW9SL5YBQ5BBTSIkUqQDRgAVFjijJbUDaXOz2sSFMmuW9m5+1ySc4PEPxB6b/anXkz72NmR0gpJSwWS09Sg/4FLJYkw2YgVRfYPvRQqvFMSOOmp8JWxcP2oWf1YsQxFdiqeFjbdU/dyFkHWCk4+EPBwYzmFbYqHh48c7FxwKNXqkms7TY... | [
"4",
"8",
"3",
"9"
] | null | 3 |
math | grade-7 | front-side-and-top-view | true | true | If you look at this object from the side, what will you see? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFnCAYAAACcpz44AABguElEQVR4nO3dfVyUdb4//hfOIDehMxzdDSyDoZRy/SZDaq2YDKZnNTsK1Ul/j0oHtRvdPA5nw6xzWIbc03q3O5dbme2ijLmdL1YuxEZ5NoRLE46rBmNfM1GTS5Ed2yBGYQHjZn5/DHPlDSA3c8MMr+c/R5lh5j17+ei8+PC+3u8Au91uBxERERERucQwbxdARERERORPGLCJiIiIiFyIAZuIiIiIyIUYsImIiIiIXIgBmwbMZrMhNTUVAQEByMrKgs1m83ZJRERERF4... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA8gAAAFnCAYAAAB6h2AQAABqMklEQVR4nO3dfVzUdb7//wcCAoaCR/esaAZjKdXpuwKVtVIxmH6P5h6F1lP+bl04XnShW8fhbJT1/boMud/Wq3MYd8vcXdIxt+8PtzwQu5bnRDKWcFo1GPuViZmMV4u7QY7CAsbF/P4YZ1LzAmFgGHjeb7duCvOZz+c1t49UT9+vz/sV4na73YiIiIiIiF+EhIQEugQR6aQBgS5AREREREREpDdQQBYRERERERFBAVlEREREREQEUEAWERERERERARSQxQ9cLhd... | 0 |
math | pre-k | count-corners | true | false | Which shape has 3 corners? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAE1klEQVR4nO3dS08bZxiG4cfmsEgJ3aXqD+hhl2V+Qv9mqqoHpESNElU9pFWlLqo2VResUBo2lGKMSWgwBoPtb74uBiSKJhDD+J353rmvHSKJZnHLb0jgcSvGGLsjaf1IOgjSJAq4sfmWdHtO+uCW9N6i1OqexPisX/VjwbN7y9L8i6P8g/cXpY/eySsEbuogSM8Ppe2R9NeR1O5P8k8QGcp0ey5vSpIGQWqHc58AynTW1DhK7WofBU1BaDBBaDBBaDBBaDBBaDB... | 0 |
engineer | grade-8 | identify-laboratory-tools | true | false | Select the funnel. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAPoAAAD6CAYAAACI7Fo9AAA7SElEQVR4nO3de5hcVZkv/u/7rrX3rnvfEnIhCfcQuYW7EUm4hIAjIioQEBwRZhTROTPq+JuR4+M5zOjMHByHn8c5o+BvEEcJkkaIDorOb8QoMtyTYEJIgAQIuZF0+lrdtWtf1nrPH52OIeTSSbq7qrvX53nydFd1ddVbVf3Nrr33Wu8CHMdxHMdxHMdxHMdxHMdxHMdxHMdxHMdxHMdxHMdxHMdxHKe+UK0LcIbPnXfemQ2CoIGIcrtd7TGztdYa3/e7lFL2ppt... | 2 |
engineer | grade-8 | identify-laboratory-tools | true | false | Select the Erlenmeyer flask. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAPoAAAD6CAYAAACI7Fo9AAA7SElEQVR4nO3de5hcVZkv/u/7rrX3rnvfEnIhCfcQuYW7EUm4hIAjIioQEBwRZhTROTPq+JuR4+M5zOjMHByHn8c5o+BvEEcJkkaIDorOb8QoMtyTYEJIgAQIuZF0+lrdtWtf1nrPH52OIeTSSbq7qrvX53nydFd1ddVbVf3Nrr33Wu8CHMdxHMdxHMdxHMdxHMdxHMdxHMdxHMdxHMdxHMdxHMdxHKe+UK0LcIbPnXfemQ2CoIGIcrtd7TGztdYa3/e7lFL2ppt... | 0 |
math | pre-k | inside-and-outside | true | false | Which picture shows the pizza Created with Snap outside the oven? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOQAAAC/CAYAAADuHnC5AABppElEQVR4nO39d3wc13nvj7/PzPaK3isB9k6KVLMkS6Ikd8W2JFtxyr1Obzdx8s11nPtNYsexE+c6TpzEyS+/FCfXuS5yHEuRJcuWZFtdpCRS7ARBEgDR6wLb28z5/jHYxS6wZRYEJVnC5/UiAcyc8szMeU55qpBSyokkXIhCSIO0ZB3rWMdrBIsArwobXdBoAzGRkPJI8PUmax3rWMe1PrD0R40/mm2w2W1w6zrWsY7XBiEN+iIwnoTzUVCCaePGOjOuYx2vPby... | 0 |
math | grade-7 | identify-trends-with-scatter-plots | false | true | Does this scatter plot show a positive trend, a negative trend, or no trend? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFhCAYAAABK/t0lAAAjZElEQVR4nO3de3DU1f3/8VcCQZJsIFxyDzcDJclPRmCXAGF+8YtfAVFiFb+OjlZGW5DQVip2arFah6r0t3WktCo06NQboaXTyK9WRmDwAtEMJGaRDsouUwoJJpgLmsDmRrJkf3/wY8stSOrJfjab5+Mv9px13+8DzuTF4XzORvj9fr8AAAAAGBFpdQMAAABAOCFgAwAAAAYRsAEAAACDCNgAAACAQQRsAAAAwCACNgAAAGAQARsAAAAwKKQCdnt7u9rb261uAwAAAPi... | [
"positive trend",
"no trend",
"negative trend"
] | null | 1 |
math | grade-3 | lines-line-segments-and-rays | false | true | What is this? | "iVBORw0KGgoAAAANSUhEUgAAAG4AAABuCAYAAADGWyb7AAAFdklEQVR4nO2b20+bdRyHn760jpcEyrggw2wz2dGd2AYbh+EWlizLMvVqEEmMwXkaGg/zYjHxL/DCxJkZh6KGuZhIxq400WxezAPjzAgIKjiMYMrSC6SS0GZlrRelBRpgaDJ+x+eG20/ypM37Le/jicfjcSzK4YgeYPl/CBc3GQmLnqAkwsX1BgKcbm4SPUM5hIsDaOzp4vinH4ueoRRSiAO4fnuY6i8+Fz1DGaQRB9A80G+/NleIROLieEh8bZ5ubrIPLfdBGnFZvoe... | [
"line",
"line segment",
"ray"
] | null | 0 |
math | grade-4 | identify-equivalent-fractions-using-number-lines | false | true | Is 1/2 equivalent to 1/12 ? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABwCAYAAAAkAwevAAAZYklEQVR4nO3de1BU990G8Ge5ilxkYZfCokFMxAuxWlQCNmgaSWPiiJpopF7ACzXpqG1STZOM7zTW5iJJOhqNVhNfXlNMOzGx0SYkZrwUSAmIoNXogMFVNHFRVl2W26K7cN4/FALxxi4Lv3MOz2fGCZwlM8+XhcPDb3/noJEkSYJKZGdnw2Qy4be//S38/PxExyEiAgCsX78eGo0Gy5YtEx2FiAgA0NjYiA0bNqB///6YM2eO6Diq4+Hs/2C329HY2NgdWbqsNVdTU5P... | [
"no",
"yes"
] | null | 0 |
math | precalculus | 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 | [
"iVBORw0KGgoAAAANSUhEUgAAAU4AAAFGCAYAAAAFAHYEAAAvVUlEQVR4nO3deXAU14E/8G/3nJLmEIrABVigMiNjyRE4yEjIlrYMm4ypXbu2suVDztrORjiJVw6YJIVjb5FCy3rZUiD8YmxYm0qicu0uazCJHZxyGbtiiBysYwzLJQkHschgICAx6BhGPT1H//4YNOiYkdRieg7p+/kDqd+0ut8I6avX/V6/JyiKovxFBjq8QH8QCCggIqIh9AJg1QEFmcBtRkD4i09RWvqSXS0iovRQZgP0p73hjdlGYGFWOFWJiOim/iDw+XX... | 0 |
math | grade-4 | is-it-a-polygon | false | true | Is this a polygon? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD7CAYAAABQdOO0AAAYAUlEQVR4nO3dPWxc59km4Ie/MxLFFVORrEQDYkxXJtnELsRYXSQ1VhFr08VWtUACZ7t47dL6kO1ibwykkeGv+iwZC6vRT6dEKiw3IlOF3jEQpuK4CgNS0lAkZ7Y4PGPK1s9wOMMzM+e6ACOGI4ivRBX3PLrf5+2r1Wq1AAAAWqI/6wMAAEAvEbABAKCFBGwAAGghARsAAFpIwAYAgBYSsAEAoIUEbAAAaCEBGwAAWmgw6wMcxHqlFt+Wd2JxZTv+X3knNiq1WF2rRnm... | [
"no",
"yes"
] | null | 0 |
math | kindergarten | count-money-pennies-through-dimes | false | true | How much money is there? | "iVBORw0KGgoAAAANSUhEUgAAAIAAAABECAYAAABJRz1pAAAwv0lEQVR4nO29d3Tc5Zn3/ZleNEUzmpFmJKt3W+69Y4MNhLYYQksgYQPZJLsPJCG7SV6ym80m5Jw32ZPk5dmE3WRDAjkhcfJsjA0BjG2wjbtcZMuSZcnqGrXR9N7fP0a/GykYsIFk9zxwneMjazTlLtd9le/3uu6R5XK5HB/Jh1bk/90D+Ej+e+UjBfiQy0cK8CGXjxTgQy7Kv9QHZTIZgsEgkUiEYDBIMBgkGo2SyWQYGxvD5/NhMplIp9O0tLRgtVrRarXodDrMZjM... | [
"15¢",
"5¢",
"10¢"
] | null | 0 |
math | grade-6 | understanding-percents-strip-models | true | false | Which model shows 60%? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUsAAABLCAYAAAD5wKUqAAACKUlEQVR4nO3cMW4TYRSF0Te2kyIk0CAQCwCWECl7YAHUlDRZShpKanrYQ4rswIQeI6iS2FKCrZ9isEJ5LZHYSc5pxqPxSG+aT8/FuGuttclV1bdZ1fmiat4K4MEbdVV7w6qXO1XPt6u6yWVrJ2frHgtgc+0/rhqdzvqTF9tVrx/1JQV46M4XVeNp1ferqq+zqsHZvL8glADX9oZ9F6uqLhZVg8U/FwC4tuzi71Y1WO8oAHeDWAIExBIgIJYAAbEECIglQEAsAQK... | 0 |
math | grade-7 | classify-quadrilaterals | false | true | What name best describes this shape? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACFCAYAAABhXI8FAAAVSUlEQVR4nO3de3CV9Z3H8c85uZOQnCg3EyGEkBywARIgKTq1BXS308sqjjq2MAVktbQiCy6XOg4zapftrFxq2EDVoUsju9B2lC2yHXc6o8JU1wJBEiBCLoQQMEEumifJCbmfs3+ck5DDNYFz8pzL+/WPzjyHnK/MOPPhx+/5fC0ul8slAAAAAD5hNXsAAAAAIJQQsAEAAAAfImADAAAAPkTABgAAAHyIgA0AAAD4EAEbAAAA8CECNgAAAOBDBGwAAADAhyLNHgDh46u... | [
"rectangle",
"parallelogram",
"rhombus",
"trapezoid"
] | null | 1 |
science | grade-3 | identify-vertebrates-and-invertebrates | true | false | Select the vertebrate. Hint: Mammals, birds, fish, reptiles, and amphibians are vertebrates. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK8AAADMCAYAAAAF8vOBAAEAAElEQVR4nOz9V5Rc5bW3jz4rVY6dc07qVivniJCQSCJHAzYGjG2MsXHeTtjb2djYxoDBATCYYLLIQRIC5dySWmp1zrG6cq6VzoX87f+NvzF8Djf/M8Z+r6rWqDUqjKfmO+d85/xN4XDUNJud4Jb43/W/6/+VK65DdxImc+CXYY3v3HXxf8H93/X/9uWWoNl57nFC/3+ui/8L7v+u/39Y/4dT1fx/rsn/7oWbllUQiWYIx9OIkoKhQDiWJRLM8P0ffI6Fqxfy0+9... | 0 |
math | grade-2 | match-digital-clocks-and-times | true | false | Which clock shows three ten? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMIAAADICAYAAAC6ej5XAAAN8ElEQVR4nO3df3Ac5X3H8ffd6YctnW1cwBIMGBgfCRNSdO7Q0owkOp1OKqUzTBorHoozHTPTkg4Sf2CYyM2M7Rnk/BFppnb+iN3abjuxIcnAWO40JK2OiUkDUkP40UqtCXG4o8UhcLJdY1t7+mXdbf846yydAd/u7Y+728/rH05j7X4fof3s8+yzz65Cpmma6XlITsNUFhZMRGpeXQhWReDOJmhpgFB6zjRfveh3s0T8c99qqHt7Ov/FTQ3w6eZ8SkRq3VQWTmb... | 0 |
math | grade-5 | acute-obtuse-and-right-triangles | false | true | What kind of triangle is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACwCAYAAAA16xkbAAAeq0lEQVR4nO3df1zV9d3/8efh9xEVfwQZAaaJij8p/AEKkr+GXCZWaroMV8oq0a24ttpWtlzOtta2uNaSZclqRte3i2/tolqsJWphi1TMjkZOUhQUE0URwQMdOOf6w0ERVgLn8IHD4367cfPmOZ/zeb+Ofz1983p93iaHw+EQAAAAAKfwMLoAAAAAwJ0QsAEAAAAnImADAAAATkTABgAAAJyIgA0AAAA4EQEbAAAAcCICNgAAAOBEBGwAAADAiQjYAAAAgBMRsAEAAAA... | [
"right",
"acute",
"obtuse"
] | null | 0 |
math | algebra-1 | identify-linear-quadratic-and-exponential-functions-from-graphs | false | true | What type of function does this graph show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAETCAYAAAAMFHHvAAAZ3klEQVR4nO3dbWzV93k38OsQg40dHprKhjbtDVbDjRe8xsh5gE6KQm9VqxWfVnRKkTpVWqJFWtXk3TRNexFlapNlU/KqtF07LU0fJi2srTJBlkiR5ty7X/CQnuE2gEzayiZoKTFrYqA2Ngb+9wt2jm0g4GP/j//n4fN5wznH1zlcCQ7n63+u87tySZIkAQAApGJZ1g0AAEA9EbABACBFAjYAAKRIwAYAgBQJ2FzX5ORkTE5OZt0GAEDNEbC5rsHBwRgcHMy6DQCAmiN... | [
"linear",
"quadratic",
"exponential"
] | null | 2 |
science | grade-2 | identify-earth-s-land-features | true | false | A plain is a wide, mostly flat area of land without many trees. Plains can stretch for many miles. Select the plain. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOEAAAC0CAYAAABi8Es+AAEAAElEQVR4nGz9x5Ily5amiX3KjG3m7kEPuzfvzSzW1V0tJYIBJgAmeAa8DB4AU7wNZpj0AIKWElR3dVVlZmXmpYdEhEe4+2bGlGGgqmY7bnYcORHum5gpWeRf/1q6TIj/2/8riihACCIRBOufCCBBRCIBiYQYiTJ/NoKIpL/EzecjIMo/5T2JEOmzUYj1NkIg8meJAmL6fBQRfEwXjaQLipB+jiJ/HoRYbnxz34gABIIouLlGvoeIxCjWsQXxvzPvuP4uYv5HEtP... | 1 |
math | grade-1 | which-tally-chart-is-correct | true | true | Jane went to the beach. She packed some drinks. Which tally chart shows the right number of each drink? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEOCAYAAACzXGCqAAAuoklEQVR4nO3d3XNbV37m+2fvDeKFJCiSJm2SLbUpum3ZqtjjF1VSp22nS6lKp92ecsbTuTipvugLT3Kqq3oquejLOXORC9+ccpzOH+DkTEpJz5wpu6pdHTvTPVa7y5LjWJYltfVCt0XRlAxSIkCAxNsGsPde5wIkSIik+AYSBPj9VKlM7L2xsGRS4LMWfmttyxhjBAAAAKAh7GZ3AAAAAGgnBGwAAACggQjYAAAAQAMRsAEAAIAGImADAAAADUTABgAAABqIgA0AAAA... | null | [
"iVBORw0KGgoAAAANSUhEUgAABHwAAAEOCAYAAAD7WgBCAABfMElEQVR4nO3deXiU5b0+8PudfZJM9kASCCRhCSCyK8qixqO4g2hbtda6UJce9VSrree0tfXXzdpW3E9PrXJ6rFilVquCWqGgKDsSghASliQkkHUmmWT2mXf5/THJJEMmyUy2yUzuz3XlIvMuz/vMkExm7nme7yMoiqKAiIiIiIiGhCAI0e4CERERVNHuABERERERERERDS0GPkREREREREREcYaBDxERERERERFRnGHgQ0REREREREQUZxj4EBERERERERHFGQY... | 0 |
math | grade-5 | is-it-a-polygon | false | true | Is this a polygon? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFkCAYAAAAaM0yWAAAaUklEQVR4nO3dP2xVZ7ov4HdGR7ILLNzZGRdOZbsKRyIe3yokFEGnCO5IAUoxE12F5iophmkGiiTNgWIytwFdnZkCQZF0NsURFCSkOo6JNKbypsouYOzOaKewq9zi88reJhC2t9fe69/zSNFaViL7lfdayo+P93u/3/z0008/BQAAkIvfFl0AAADUiYANAAA5ErABACBHAjYAAORIwAYAgBwJ2AAAkCMBGwAAciRgAwBAjv6t6AIYkp0nEduPI9rrEVutiN1OxHbr4H8... | [
"no",
"yes"
] | null | 0 |
math | precalculus | determine-continuity-using-graphs | false | true | Is f(x) continuous at x=2? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAACH7ElEQVR4nO3deXhV1bk/8O8+U+Y5kEAgYUaGJIiggiBarVqtWqgW68+xaFtvFWutrVq1V6Xc9rbWW2u9rdUqaG9baZ1QI0VBwKACEQIJUwiQgZDhJCcnZ97j749DIpEpgb1yhnw/z+PTcpL9Zp29z1n73Wu/ey3JMAwDRERERERkCkukG0BEREREFE+YYBMRERERmYgJNhERERGRiZhgE1Eva9aswahRo3DVVVcBAK6++mq88cYbx/1dRVFw/vnn49NPPx3IJhIREUU... | [
"yes",
"no"
] | null | 1 |
math | grade-2 | identify-multiplication-sentences-for-equal-groups | false | true | Which expression describes the model? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADXCAYAAAAgGib5AAAxwElEQVR4nO3d23bqRrov8E8CxMHYHIwxBjvda42+Wffrpt9gP1nnVfIIGbnZL5Bc7OtkjV7JNBgbEOaMQYd9wURWFdjmIKlKqv9vjDnaOIldPYu/9KGvVNJc13UJAAAAAAACoYseAAAAAABAkqDABgAAAAAIEApsAAAAAIAAocAGAAAAAAgQCmwAAAAAgAChwAYAAAAACFBa9ABUZds2rVYrWq/XtF6vybZtchxn75/tPyMi0nWdUqkU6bq+908qlaJMJkOZTIYMw6B... | [
"4×2",
"3×4"
] | null | 1 |
math | grade-4 | estimate-angle-measurements | false | true | What is the measure of this angle? Choose the best estimate. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAA/CAYAAADaDb8WAAAEZ0lEQVR4nO3dT2jWBRzH8e8jgm5uTLZwlWYQIXRxx215UuIZ1K1t3ipo0sECK6tjaUchC6JACqF1SpfUocOeIKEw5/EJ7GB6ysACxc3NebFfh9F0bs6pz57fv9cLBg+/57APv9P7+fH7PU8lSZIkAACAhliT9oBmqZ8+F99++VPaMwAAKLi1aQ9YTdOTs/H96M9x7MiPMTM1Gwe/eC3tSQAAFFwhA/v82Ytx4ujJqB2fmD/W1tEaOwZ6UlwFAEAZFCqwx49NxImjJ+P... | [
"45°",
"120°",
"90°",
"150°"
] | null | 0 |
math | grade-7 | identify-complementary-supplementary-vertical-and-adjacent-angles | false | true | Which angles are vertical to each other? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD5CAYAAAAdvEK/AAAXc0lEQVR4nO3df2xV9f3H8XeBOUQjzPDVmAGFoV8CilyCRkyWcLs/Np0aaCIODQpFs+mmEf/Q6YS1fHUDFzc1mq1sKs1YonEYC4lmWbZwl5mMP3QUf+CcECrqhpsZt06xQUu/f7CyUtpy2557z+29j0dCwPb29kP0j5fPnJ5T093d3R1QRvL5fEyaNCntYwAADMuYtA8APfL5fNTV1UV7e3vaRwEAGLYaBZtykM/n4+KLL449e/aE/yQBgNFMwSZ1bW1t8cUvfjH27Nm... | [
"\\angle{3} and \\angle{2}",
"\\angle{1} and \\angle{2}",
"\\angle{2} and \\angle{5}",
"\\angle{3} and \\angle{5}"
] | null | 3 |
science | grade-5 | use-data-to-describe-climates | false | true | Which statement best describes the climate of Boston? Hint: Summers in the Northern Hemisphere occur in June, July, and August. Winters in the Northern Hemisphere occur in December, January, and February. Boston, Massachusetts, is a city in the United States. It has a hot summer continental climate. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAALOCAYAAACTXGSDAAEAAElEQVR4nOzdd3iT573/8beW5S0veWA82GAMxiwzA2EkJAQSRtbJoknzy2haTtv0NGnTpk3SdZpw2jSkaZsmaUabaULCyGCZFcyyAYPNNNiA95Zla96/P4wFBhNIkC0B39d1cWE/eqTnK+mx9NGte2iUUgohhBBCCCGEV2h9XYAQQgghhBBXEgnYF5CTk4NGo0Gj0TB8+HBflyOuQm+88QYajYZhw4Zd8m3FxMR4zuf2f6GhoQwcOJCnn36axsbGSy/Yj515/z/99NM... | [
"On average the winter months are colder and wetter than the summer months.",
"Summers have more precipitation and higher temperatures than winters on average."
] | null | 0 |
math | grade-2 | which-table-is-correct | true | true | Lester went to a bird refuge and saw the following birds:He wondered how many birds of each type there were, so he made a table of all the birds. Which is his table? | "iVBORw0KGgoAAAANSUhEUgAAAVsAAADoCAYAAABB5keCAABwnElEQVR4nO29d5icZ3nv/5m3T9++K23RSlaXJdmWu3GVGxgbNxICBkNCS4CEEEqAQ+BK4pMcQsLJLycn1ENM6DHBOGAbGxtsbHCX5CLJ6tKutu9OfXv7/fHOjiRky0bWVr2f69prZ2femXme2Znv3O/9fJ/7Tnzuc58LiYmJiYmZUiSAz372szM9jpiYmJh5jTDTA4iJiYk5GYjFNiYmJmYaiMU2JiYmZhqIxTYmJiZmGojFNiYmJmYaiMU2JiYmZhqQZnoAMSeOQqG... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAsUAAADoCAYAAAAHZpnZAACw5UlEQVR4nOy9d5xcd3nv/57Tp+zM9qLdVbOKJSHJstwLLnIBXHCFYHpCS4B7CTf0S7m5EPIjJLm53CTUEBxCtWNjwDbYxtjY4IJtyUWS1aVdbd+denr7/XFGIwkbF1nS7krf9+u1r909c+bM9zs7e87nPN/n+Typz33uczECgUAgOKJ87nOfm+4hCAQCgeAFUAA++9nPTvc4BAKB4JhGiGKBQCCY2UjTPQCBQCAQCAQCgWC6EaJYIBAIBAKBQHDcI0SxQCAQCAQ... | 0 |
math | pre-k | fewer-and-more-compare-by-matching | true | false | Which group has fewer? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMwAAACGCAYAAACR4WX4AAAIj0lEQVR4nO3d228U1x0H8O/sbXzbNSwGbGPq+BaTVKqqqlJQMeBQ+ggvzkNSKWpaqe3/lDzxQlvJtJJTRa2SVKZ1pChVpKhSi++xMRdjw2Lv2uu9Tx+WDWtMsA/M+Z0z3u9HQhYyeM5819+zszNndxzP87zVAjCfBTJloOSBiJ6IOEA8DAy1ACdjgLOa97yv0qaHRWS/txJAZC5b/UtXDBhurbaJiKoyZWBmG7hfAGazQChdqn6DZSHaKx6udgMAtspAqFz3DSL... | 0 |
math | grade-1 | match-analog-and-digital-clocks | true | true | Look at the analog clock: Which digital clock shows the same time? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABSaUlEQVR4nO3deVyU57k38N+wDaAwg7K6zYAraAT3JcoSoyYxEWySNk3Sgm+znb5Ji23Tvud0EU/b07cnPRWTnHPamrySrelJYsQYY9QYR9yCURhcQIzAoCgiEGZAYYZhef9AJiyz3LMxA/y+nw+fDPPczzNXkPlwzf1c93VLuru7u0FERERERC7h4+kAiIiIiIhGEibYREREREQuxASbiIiIiMiFmGATEREREbkQE2wiIiIiIhfy83QA5HnG9k4YDR1oN3Sg3dCJdkM... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA5oAAAEJCAYAAAD1mFhPAABchElEQVR4nO3deViU97k//vewDaAwg7K6zYArYGTEHROWGJMYY8CaaJqkFU9jktNv0mCT9nzPt23ApD39tWkjNuk5bU2OZGuaRcUYY+ISEbdgFAYVEKMwCIgIhhlQmGH9/YFMWGZ5Zh/g/bouLmee5/N8njsw084992cR9fT09ICIiIiIiOxCJBK5OgQil/NwdQBEREREREQ0sjDRJCIiIiIiIrtioklERERERER2xUSTiIiIiIiI7IqJJhEREREREdmVl6sDINf... | 0 |
math | grade-6 | rational-numbers-find-the-sign | false | true | The number line shows an unknown number, v. Is v positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAlwAAAApCAYAAADgbPfrAAAGFklEQVR4nO3dT2iTZwDH8d+bmLdZ027rZp2wKW5D54rgurZp639vcyIsokg3ELeBoHgYeHCw6yZ42kUPgh4mWByDOCY4L0PSXprUtgiZ7XBi1Y3VSsE/jUmaNu8OMZnV2kTm27dv8v2cmqcv5df3LeGX53n6voZlWZYAF+vs7JRhGOro6HA6CuYI1xyA2yxwOgDwf926dcvpCJhjXHMAblNy4cpkMurr61M0GtWiRYv4ZAkAQAU5eTGlgRuTujoypRq/oeWLvfr4A1M... | [
"positive",
"negative"
] | null | 0 |
math | algebra-1 | match-exponential-functions-and-graphs-ii | true | false | Which graph matches this equation?
\[ y=-3(3)^{x}-3 \] | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAVUAAAE1CAYAAABX+HN0AAAcpUlEQVR4nO3de3BUdZ738U93bkASknFyQZ0hRFjJQMBA1AS1jMwUChZUDVjjrZgZEnAWR6ipGalasNYNuzsiViH1lMsq4w2p8hHHC+WaOAg6hlV3krDENDPgE2SB6AoJiZBOgJAO6T7PH6FPEhIgl9M555D3q8qy+/Q55/ftHPrT5/b7tccwDKO+XfqfVul0UOowBADop2iPlBgl/d0YKT1W8tQHDGNPi91lAYD75Y2Vog+1dj65NlaaHN+ZuACA/jkdlA6eler... | 0 |
science | grade-3 | identify-rocks-using-properties | true | false | Select the one substance that is not a rock. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANcAAAEGCAYAAAD2aACLAAC09ElEQVR4nOz9d5Dk53nnCX7SVvqsrKzKrCzvvW/fQKPRaHiABAk6UaSkHY1iR/rj9kbrIjYmYjcmYiNmd2MUe6fRzN2GNBJnNVoSpEgQBAE00GgQaG/KV1d1eZ9V6b2390f2+7IhacxBbJDi1hOBAFjN6srK/D3v+5ivUdyLlsu9RjCrOIqjOIrPEPEirCThMAc2NTxZXfm68iixjuIo/n5hVkGvsfLfieLPv648SqyjOIq/f4g8ypd//jXlL+elHMVR/PrHUXI... | 1 |
math | grade-3 | multiplication-input-output-tables-find-the-rule | false | true | What is the rule for this input/output table? | "iVBORw0KGgoAAAANSUhEUgAAAFgAAAB/CAYAAABrPAW6AAAKl0lEQVR4nO2de0xUVx6Av+ExoDxdEMRVHLayWgFTahAVsWvUyjq1RremxarV9ZGuaVpWrShUKyIJYmxj0oR0a1hLEOn7Ib5ofLCrUaurqVC1rk62IrAdprzHAQbm7h90pkXZVOQcBHO+P8+98/v9+Dhz7p17zz1Xl721UmMAsPwvwfw91/Kwy+gRqW8Ox+1hF/GoowRLRgmWjBIsGSVYMkqwZJRgySjBklGCJaMES8ajNx9+9k9DCA7xJC/XLKoeIej1OhKn+zPSoGf... | [
"× 8",
"× 10",
"× 2",
"× 3"
] | null | 2 |
science | grade-3 | identify-vertebrates-and-invertebrates | true | false | Select the invertebrate. Hint: Insects, spiders, and worms are invertebrates. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK8AAADMCAYAAAAF8vOBAAEAAElEQVR4nOz9Z5Bt2XmeCT7LbXNc+szrTdWtKpRDoQoeJLxoQFIkQaNWU1KLphXdklqjHo06RtMKaTTdEqclNeVaUkvkiOKQFL0FSJAACIBAwRZQAMreqrreZt6b9vi993LzY+17oR9UBFv3T08EM6IiUImszHPO/tZn3vf93iW+PIzxoS70FX/y9Sdf/6f8Gnt4dQqbDSxp+ObF9H35J4H7J1//Z//qK3iom/73xH/j+/JPAvdPvv7/4etOnNr4je/pP+oHP/G... | 0 |
science | grade-5 | use-evidence-to-classify-animals | true | false | Marsupials are a group of animals with similar traits. The following traits can be used to identify marsupials: They have offspring that lives in the mother's pouch after birth.
They have fur or hair. Observe the animals and read the descriptions. Select the one animal that has all of the marsupial traits listed above.... | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAp8AAACmCAYAAACcAuREAAEAAElEQVR4nOydd7wU1d3/3+fMbN/bK713AVGxoqiIiqgxGuwxllijJvqzJdFojE80GqOiRo0FLNH4xEY0NiwgiCJFEBWk93J7v9tmzu+PKTt77wWxJXnMfF6vvXd35sw5Z87O7n7m821iQaNSQ2KQp+HDhw8fPnz48OHDx3eCZgO+aAXRlFHKJ54+fPjw4cOHDx8+vms0GyCUUurfPREfPnz48OHDhw8f/x3QvS/+MO06TJUhY5ogTEzTxFAZQKEME4emWnzVemF... | 1 |
math | grade-2 | am-or-pm | false | true | Mandy is eating her after-school snack. The clock shows: What time is it? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABfi0lEQVR4nO3de1zUZdo/8A+IAwKTyXAQTB1QIZXpRAUeUpRSawUrLZV9tt1n1dptd5NOtsFWW/2kcreCetpnN22rfXaRSkvANrUw0BIw6TSogTaMloODjKdhEAaQ3x/sjAwwM/ecmAE+79fLV8zM/f1+73TmxTX397qvy6+rq6sLRERERETkFv7engARERER0VDCAJuIiIiIyI0YYBMRERERuREDbCIiIiIiN2KATURERETkRgHengB53wVjJ1raOmBo7ej+b1v3fwN... | [
"3:35 A.M.",
"3:35 P.M."
] | null | 1 |
science | grade-4 | identify-rocks-using-properties | true | false | Select the one substance that is not a rock. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANcAAAEYCAYAAADPtGNgAACU/0lEQVR4nOz9abBt53XXjf6e2a++2/0+/dHRsSSrs5XYjmP7dUKaF5MAxU1DMIEKTRWFuYFLXfgA3EDlrZsPqaJCFyiaSiCBfICQF/IWr8ON0zkGJ25kWVF3pKPT7L5ZfTP7+dwPz5zPXls+khVZW5LFGqqjtffaq5lrrjmeMZ7/+I//EF8YSnm9AjWThS1sYW/Axim8MIW9CFoWfHtT3W8sHGthC/vGrGbC9Yr6eZKe3G8sHGthC/vGrfCjWJ7cZ7w9h7Kwhb3... | 0 |
math | grade-2 | identify-repeated-addition-in-arrays-sums-to-25 | false | true | Which addition statement describes the array? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACACAYAAAAxkR62AAALp0lEQVR4nO3dQYiU5xkH8CcllzQlK0SIh+o6tMRLm3WOjcL40dJCi+j20NJC4nqr6SEjGpoupPvtRSMofB6a3ePatS3swS6suQTEoTG5djUnoYXBXDxYWEG82oPslBxS6vjtzPu98/udFBbm+d/+vN/D+75QluWTAIaysLAw7hEAgMR8Y9wDAABATl7c/oeTOPj/LS4ujnsEACBRTrABAKBGCjYAANRIwQYAgBop2AAAUCMFGwAAaqRgAwBAjRRsAACokYINAAA1eqa... | [
"5+5+5+5+5",
"3+3+3+3",
"4+4"
] | null | 2 |
science | grade-6 | identify-ecosystems | true | false | Select the hot desert ecosystem. This ecosystem has:
a small amount of rain
dry, thin soil
many different types of organisms This ecosystem has:
a small amount of rain or snow
dry, thin soil
long, cold winters This ecosystem has:
warm summers and warm winters
a rainy season and a dry season
soil that is poor in nutrien... | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAp8AAACtCAYAAAD2xRSHAAEAAElEQVR4nOy9ebglV13u/1lrVdWe95lPj+l0Z+oQhghhlEkZhAsOqAh6BURAUa78FAUFQbney0V4EEUG0asSCXi5+KiAz3VCETTGAAImEIYQkk7P3WfeZ881rPX7Y1XVrqqzT6eDMkjq7aee2ruGVWutqtP7rfc7iX/tGHO0AS1FiRIlSpQoUaJEiRJfE3QjuL0PYjs0piSeJUqUKFGiRIkSJb7W6EYgjDHmG92REiVKlChRokSJEvcNONkvb/6FDyKlRAgBgDE... | 0 |
math | grade-3 | interpret-line-graphs | false | true | A stamp collector carefully recorded the postal rates of the stamps in his collection. In which year did the postal rate reach 4 cents? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFtCAYAAAA9PB1eAABJaklEQVR4nO3deXyU5b3///ds2fcFQiAkYQlhCftOgoKiIqgsLnCEVm1t6/H3U/uwx9Nq29Naa3vOqcdWu3joca347dfIogiIbVjDKrLJJpCQkAUCZCHbzCSTme8fnEyNCZDALFlez8fDR8099z33575yd3znmuu+LoPL5XIJAAAAgEcY/V0AAAAA0J2Y/V0AvG/lypXasGGDBg4cqGeeeabFa/n5+fr3f/93SdJLL72ksLCwNt+jvLxcH3/8sY4fP65Lly7JYDAoNjZ... | [
"1965",
"1950",
"1955",
"1960"
] | null | 3 |
math | grade-2 | place-value-up-to-thousands | false | true | What is the value of the underlined digit? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAAiCAYAAABlRa5TAAAE/0lEQVR4nO3dT0gUfRzH8c8M2q5u2Zp5sHIJD4WLJoQoVgZFYC0RBh2CDoJgRHQQApXwGqKZejA8GGF/IFjYigrcyEuxBzGhKN2CFKFLh1hMESvInQ4+zdOwPg8POT2N8X6dfr/vzmeY44dhZsewLMsSAAAAAFeYv/sCAAAAgD8JBRsAAABwEQUbAAAAcBEFGwAAAHARBRsAAABwEQUbAAAAcBEFGwAAAHARBRsAAABwUUbBfvnypRobGxUKheT3+7Vt2zbV19fr0aN... | [
"60",
"6",
"600"
] | null | 2 |
math | grade-4 | multiply-fractions-by-whole-numbers-using-models | true | false | Which model represents the product 4×
4
6
? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAT4AAACECAYAAAAJHkeXAAATg0lEQVR4nO2db2wbdZ7GH+M2DT2SyYuyBJqe3abHQnnR5HQihUvrcPzb26XUVa9/eHNOL0HidDrVYVVpi06KLd0pnEDUudNJoDMlfoFKN8c1LeyfLrAMJZBthS5+U1rYphkrLelt9sXEQEuCc3MvpjN1Eice2/OvnucjRWlie+Yhj3g8nt/v+/36FEVRrs4CF68BX88BOQWEEFJVrPABdX7gz1YDd9UAvqszinI267QsQgixh7Z6YMXvr6k/3F0D/PBP1FQkhJB... | 0 |
math | kindergarten | cubes | true | false | Which shape is a cube? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAXTklEQVR4nO2dW3ATV5rH/7YuLbmFdTFIwpYRgcXN1hA8U/aA2arAQAKpSgK7D2EfwsA8zZKX3aqhJm9boUjt26Z2piovUJWX4ZKX8DBjQrYqS2AwVYPjMTNjzNTQZiAWCEct0KVtXbp1sfeh3W3JlmODu9Xd0vlVUcHtTuug8+vT3/n6XFrm5ubmYgXg7zlgpgyU5kAgGA5rC7DOAmxrAwJ2oCUmzs2NTOtdLAJh9exuB6wPctIPG+0AQ0tWEwhGY6YMsFnguwI... | 2 |
science | grade-4 | use-scientific-names-to-classify-organisms | true | true | This organism is an eastern gray kangaroo. Its scientific name is Macropus giganteus. Select the organism in the same genus as the eastern gray kangaroo. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADMCAYAAAAGVtdxAAEAAElEQVR4nOydd5xkRb32v1Wnc5w8sxM2zGxOZCQrIrpE4YIJUAkmFPAVL0mvchEFFEERMCGICIgiXhERQQWRvLAssLuwbM67k2d6Ovc5Ve8fp09Pd8/sssAIiuf7+fRO9wlVdUL3PvU7T/1KaK21aZoopXBxcXFxcXFxcXFx+fdESonH40EUCgXtinsXFxcXFxcXFxeXf3+klEhX3Lu4uLi4uLi4uLi8M1BKId/uRri4uLi4uLi4uLi4TByuwHdxcXFxcXFxcXF5B+E... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA6IAAADMCAYAAABp7h4wAAEAAElEQVR4nOydd5wkRf3+31U9YXPevZzzcUe8IwqCCB5RlBNRUJKKKKCgRL/KD1FEERQJKhkEJKoIiCBBJB8cBxeAyzntxc27M9NVvz+qq6e7Z/ZuD08w9PN6DTfboVJXD/XU8wlCa61zuRxKKWLEiBEjRowYMWLEiPGfCSkliUQCIcRH3ZQYMbYLGZPQGDFixIgRI0aMGDH+86GUIpfLfdTNiBGjT0jEJDRGjBgxYsSIESNGjP8OKKV4o0UzrhwqnY+6NTFiQJs... | 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? | "iVBORw0KGgoAAAANSUhEUgAAAQQAAACgCAYAAADq8hJGAAAYXUlEQVR4nO3deZgcV3nv8e+pqt5m0+yjbSTZ8siSJVvmesdA4i1ggyFgTB5wYp4kJCGXAJeH5NoXSExu4ObGNrksTggB4vvYmItJiG0wyE7s4IBXLdiSJWskj5aRRppFmr17equqc/+o6pqtJc1IM9M1M+/nefyM1T1Ld5+qX53z1qk6SmutEUIIwCj1CxBChIcEghAiIIEghAhIIAghAhIIQoiABIIQIiCBIIQISCAIIQISCEKIgASCECIggSCECEggCCECEghCiIA... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAiAAAAC4CAYAAADaI1cbAAAjmElEQVR4nO3de3gcd33v8fdvZlfa1cWSLVuynfiSOHbs2MSBXCHQBkIKCZi2pLRQ2vRpy6H0UEo5vZBCWmgLtCShD5QUTguU84TLAVpOCAk4oaSkkAvEMYkTO5Yd27HimyxL1l17m5nf+WN2dbctO9Ls7Orzep48G6+k1Wh/s5/9zm++81sDWEREAGstnXnYNwKDPnhKBxGZJQkDjS6srYO2GjCoABGRos6c5YmBcm+FiFS7qxdAotwbISLx8fxIeLusBi6uD49... | 0 |
math | grade-8 | parts-of-a-circle | false | true | What is Y? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADICAYAAACdx5VnAAAjkUlEQVR4nO3deXxTZaLG8SdJm6aFthRKS6GUssuigFQU0RGRZVBURsUZF1zQwQ1GvHNBQC9uoyI6c11QEUFBcUEvjs6VK64FGWVkkbLJDhXaQhcobaHpmtw/Kodk2FSW9yT9fT8fP7zvm5PmKeSPJ8f3nDj8fr9fAAAAAMKC03QAAAAAACcPBR8AAAAIIxR8AAAAIIw4HQ6HFi5ceNgD559/vlJSUg5bz87OlsPh0LRp0zRjxgw5HA7V1NSc8qDXXHON+vfv/6uf7/f... | [
"center",
"chord",
"diameter"
] | null | 0 |
math | grade-8 | identify-trapezoids | false | true | Is this polygon a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAB/CAYAAADVVbV6AAARPElEQVR4nO3da5BU9Z3G8eecvjLMcBk0RAER2VCg4gx3h5lgklpmV42VIrtkL64mkeAVgpvaJVpWaWlWnRAtRZO46rIhkOuyCcYNMYWVVEFA5CIXTYCgwzhyHY0DyjD0ZfqcfTEzfc6MMtfuPqe7v59XHpyu+r3oU/X06ad/f8O2bVsAAAAAMsL0egAAAACgkBCwAQAAgAwiYAMAAAAZRMAGAAAAMoiA7UcbN3o9AQAAAAaIgO038bh07bVSWZn0ve95PQ0AAAD6iYD... | [
"no",
"yes"
] | null | 1 |
math | calculus | find-limits-at-vertical-asymptotes-using-graphs | false | true | The graph shows f(x). The dashed line is a vertical asymptote. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH3CAYAAACBwSh7AAB8M0lEQVR4nO39eXhT5503/r+1S7a87yw2EJZggkkgkJBAQhqSMKFNA21K2+mSdtrfTCZJt5l+286v7fNMH9rp0/XbmbTJ03k6TTpNt7TZCnESEtaYEMABgw0BY8DYGC+yZVnrWXTO9w8jgcEGyT63tfB+XVeuYPnorQ/COvro9n3u26Trug4iIiIiIjKEOdUFEBERERFlEzbYREREREQGYoNNRERERGQgNthE15CtW7dixowZWLt2bapLISIiylomXuRIdO1YvXo1Pvn... | [
"$\\lim _{x \\rightarrow 3^{-}} f(x)=\\infty$",
"$\\lim _{x \\rightarrow 3^{-}} f(x)=-\\infty$"
] | null | 0 |
science | grade-3 | identify-mammals-birds-fish-reptiles-and-amphibians | true | true | Mammals have hair or fur and feed their young milk. A rabbit is an example of a mammal. Select the mammal below. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADMCAYAAAAGVtdxAAEAAElEQVR4nOzdebglVXno/++aqmrPZ+w+fXpgahpEGpRBUQSDOAAiDoCCEBU0cp3BSPSnMQb1IXohkYSoAYcLKImKwxX0GhliiAjYgAQFGRto6PH0mc+eqmoNvz82nEvTDTTQSsKtz/P088A+NaxdtXbVqlXvepcIIQRrLd57CoVCoVAoFAqFwn9PUkq01og8z0PRuC8UCoVCoVAoFP77k1Iii8Z9oVAoFAqFQqHw/OC9Rz7XhSgUCoVCoVAoFAo7TtHALxQKhUKhUCg... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA6cAAADMCAYAAACPx9V0AAEAAElEQVR4nOz9d9xtZ1nnj7/vttpuTz01J/WkEBI6EggtKAhIL4KAIDijIzIKCoN+0WEYGGcUFEcUhiJSBAsgP5oowmBGCRAINSGN1JNTn7afXVa9y++P9eQxIe0AERxmv1+v83o9Z+211773Wvdae13r+lyfS4QQgrUW7z0zZsyYMWPGjBkzZsz4vxMpJVprvjyCMzvQUz/sEc2YcfuMHVw5hcM1zGt46Fy7XM4C0xkzZsyYMWPGjBkz/u/He4+1dhaYzvg3T0+... | 0 |
math | kindergarten | more-or-less-likely | false | true | On which color is the spinner less likely to land? | "iVBORw0KGgoAAAANSUhEUgAAAbEAAABkCAYAAAAIVA6ZAAAQM0lEQVR4nO3dfVRU54EG8Ifhaz6ZO8h4FAUBNUYTBJnBr+xGIWrs1xp3Y1YQo+Yk7Uk3pz1NYmK7adKzPT1N1aan3d1umw8TEYcku7rNniTrKgq2mxBwZvy2UeQbVESdC8wwIBL2j9asPQzIwNyPmXl+/wj34n2f+es57533vjdmaGhoCERERGFIo3QAIiKi8WKJERFR2GKJERFR2IpTOsB4+Hy9ELtEiB4RHlFElygCAMyCAIsgQLAIEMwCDAa9skGJiEhSMWpe2NH... | [
"white",
"pink"
] | null | 0 |
math | grade-1 | select-three-dimensional-shapes | true | false | Which shape is a cone? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAN8ElEQVR4nO2dy3McxR3HvzP70q4kLEuy/MDCdmzLhEeAKsDhUUXOUAmpFAdwKglwCbnlP0nlkhSXUCRVQC5USAiFK+UDVQkBx3FMQYL1MMbY2LLQe1e7q92d6RxmZ3Zn9qHp1o60vfv9XFa709PdM/pOz6/79+tuQwgh5kvAXB7IWkBFgJCuI24AwzHgZAbYnwSM+U0hzq/vdrUICc/pO4D4bN75cjAJnBp0VE1It5G1gOkN4FYJmMkD5nrFOUDRkm5mOOZoFAB... | 1 |
math | grade-2 | symmetry | true | false |
Which picture has symmetry? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAABOgUlEQVR4nO2dd3hb5dmH7zM0LY94O85wtjOAJJBAIMywS9izlBIolFVaKLTQ3QLtVwqF0rJpyy4QCgQoBMrOgDKTANl7ecTblq11xvfH0bAsazm2JYdzX5cvS2dLOr/zvu/zPkPQdV2v88OmLuhQQdExMTEZIGQBciWY4IQyKwh1Pl3/pD3Tl2Vi8s3j4DyQN3YZbyqsMCnHUKeJicnA0KHC+k6o9cOGLhDbFWOFKT4Tk4EnVzK0BuBWQVS7rTAxMRl4QloL6CB... | 0 |
math | grade-3 | fractions-of-a-group-denominators-2-3-4-6-8 | false | true | What fraction of the shapes are triangles? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACUCAYAAACp1l47AAAKAUlEQVR4nO3dS2uVVxsG4Ccm2rTEeKgJptCRIE4dfBMnbWlBpDiWTjoo/SX9HaUdljgtbRR6ogHbme2gIJJAMYXEWhBjgqCD/U087OBu9tO49n7f9e7rAgeJIazco5t1r5CpXq/XCwAAoIhDTR8AAAC6RMEGAICCFGwAAChIwQYAgIIUbAAAKEjBBgCAghRsAAAoSMEGAICCFGwAAChIwQYAgIIUbAAAKGim6QMAw733/Tfx09+bTR/jlb27uBQ/vv9h08cAgJFygw0... | [
"1/6",
"6/8",
"4/6",
"1/2"
] | null | 1 |
math | grade-1 | square-corners | true | false | Which shape has 2 square corners? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAD8ElEQVR4nO3bS2sTYRyF8TNJGrFaFS9VEUTU1roWUVAoIi79Cn40t7rWpYgICl7X9uIlCGK8VKSxlcQMr4sXMaDWqbbnzUyeH4Satjh/6MPZlGYhhNDuSc9XpU4u9YOA/9bIpIm6NDUu7W9KWbsbwqPl1Gehys7skBqLq/HNwaZ0YlusEPhfnVyaX5He9qSFVam23I9fIDJspIl6bEqSvuRSLR/4ArCRfjT1LUi1tKdgVBAaLAgNFoQGC0KDBaHBgtBgQWiwIDR... | 0 |
math | grade-8 | identify-linear-and-nonlinear-functions-graphs-and-equations | false | true | The graph shows a function. Is the function linear or nonlinear? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABehklEQVR4nO39e5RU9b3n/7+qq6rvV7qhGxsbRARt7EYRVBAUD0aNJp5AksHkm4v5eXLGTK5nnTmzss7KZE0yjivfdY4533jUyWQmE81MZpK4oiaKDUFFwCaCtNDQrUKL0BegL9WX6rrvuuzfH6Q7tNDQRe8PRcHz8Y92de0X7967aterdu2qctm2bQsAAACAI3IyPQAAAABwKaFgAwAAAA6iYAMAAAAOomADGHf77bfrxRdfHP/5D3/4g6677jqlUqnMDQUAQJahYAM... | [
"nonlinear",
"linear"
] | null | 0 |
science | grade-8 | compare-thermal-energy-transfers | false | true | The table shows the same data about how the temperature of each pizza changed over 15minutes. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAABfCAYAAACdpLOcAAAiZ0lEQVR4nO3deViTV74H8G/YEUEQGJeiBhhZpBEdEAVtdcRbWy4tlaZap7SuXZSWRdFqrXSE6rgwFbS0d9Su2kdwt1puqRWtVFCr4ICgqICCoBZQVoGwvPcPx1xjWBIIi/H7eR7+8Jzzvud3TvIzJ29O3ogW/DpKAJEWWD4yHv/ImNHTYRA91phHRKr5/Nn0ng6BqFU6PR0AERERERFpDhf4RERERERahAt8IiIiIiItwgU+EREREZEW4QKfiIiIiEiLcIFPRERERKR... | [
"Thermal energy was transferred more slowly out of the pizza on the top.",
"Thermal energy was transferred more slowly out of the pizza on the bottom.",
"Thermal energy was transferred out of both pizzas at the same rate."
] | null | 1 |
math | grade-1 | read-a-calendar-ii | false | true | What date is 3 weeks before July 24? | "iVBORw0KGgoAAAANSUhEUgAAAssAAAGvCAYAAACthZgKAABY30lEQVR4nO3de1iUdf7/8RfDgCgKiJw8Jh5RQzxmiiylFh467Jbrtbntzy3tbHuwtVx2O+y25qrVbtp+s90sUrc0dU3UTNMWFAVWRVHxkIKIiIiKoAgCMvP7gxgluHVQYACfj+vyUueeGd7z5p57XnPfn/tzO1mtVmtycp7277+g8+dLBAAAgFvXurWr7rzTQyEhXo4uBbfAac+e89YzZ4o1dKiPXFycHV0PAABAk1BaWqb4+LPy8Wmmfv28HF0ObpJp//4LGjrUl6A... | [
"July 3",
"July 17"
] | null | 0 |
science | grade-4 | compare-temperatures-on-thermometers | true | false | Select the thermometer that shows the highest temperature. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAQIAAAECCAYAAAAVT9lQAABGmklEQVR4nO2deXwTdfrHPwUEBHKs14oNm1RAbaAk+FttuEzYtUVEbKFFQHe3aZFDd7HlKLir0AP2t3JoU3VXuZrgKqBtIV4ordqAQFNcbXBpqqA2S4O6q0vTVOHHOb8/wsSkM2lzzJV23q/XvKAzk5knx/cz3+/zfb7Pk0AQBPHteeCLM0DHJeAiARERkR5OvwRA0hcYOQj4eX8g4dtzBHHEy7dZIiIifJEqBfqdOOP7Y2h/4NbBPpUQERHp2XRcAj7/EfjmPHD... | 1 |
math | grade-8 | classify-quadrilaterals | false | true | What name best describes this shape? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADICAYAAADSmpa3AAAXSUlEQVR4nO3da3CVd2Lf8e/RBQldkISRdY5MEslbN4UQdox2TUCW6WIr3S3e1GAus6WTZtJ2ek+nnc52Z520nm7aeJrMJGlzmczkxaYZvMFcTDbQTNcGFwQmkLLELLus7RjRtXU53HRBR0hIR6cvgLXi+KLLc87/XL6fl8z6PL8XvPjuMw//fyyTyWSQJEmSFImy0AMkSZKkYmJgS5IkSREysCVJkqQIGdiSJElShAxsSZIkKUIGtiRJkhQhA1uSJEmKkIEtSZIkRcj... | [
"trapezoid",
"quadrilateral",
"kite",
"parallelogram"
] | null | 1 |
math | grade-7 | identify-reflections-rotations-and-translations | false | true | Look at this shape: Which image shows a reflection? | "iVBORw0KGgoAAAANSUhEUgAABbAAAAC3CAYAAADD5XikAAAkUklEQVR4nO3df3CchXkn8Ee/Zcu/Y4x3CbjBQEowwSBCLhhDQ8ANlx/T9EJIciVlrpPOpc2UTEuntPxRctN/esn9QWbaZvJHO42ZUEKDScglk2A6uYBtKF47hEgcF8C2oO8CBhvZkmyvZev+kCXWsixL1rs/3tXnM+PJSnr97DPLm3fXzz76blNEjAQAAJCKkREvrwEAIC3NtW4AAAAAAAAmY4ANAAAAAEBdMsAGAAAAAKAuGWADAAAAAFCXDLABAAAAAKhLBtgAAAA... | [
"A",
"C",
"B"
] | 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? | "iVBORw0KGgoAAAANSUhEUgAAAmwAAAGZCAYAAAA0Im0SAABpjUlEQVR4nO3de1xUdf4/8NeZgQHGGUBBhAm8w5hXFNK0tlCz7QLWVuqK7db32yZ7qW8X2e5t7Ne+235LdvttrX3VfWxlLZa1axt02cpWrTRzUMzSBjUv0KAkggwyMDB8fn/AHBnul4EZPvN6PjLgzDlnPmfUl+9zPp/zOYoQQiCAVVScwfHjJ1BfXwdFUXzdHCIAQHBwMGJiRmH06NG+bgpJjPlH/oj517EgXzfAl5qamlBWVgYhmqDT6XzdHCIPFRVnEBcXh+DgYF8... | [
"neither; the samples have the same temperature",
"sample B",
"sample A"
] | null | 2 |
math | grade-2 | cubes | true | false | Which shape is a cube? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAZK0lEQVR4nO2dW3Cb5ZmAH1tnS7EkO5FE7Nhu0ljsbLDbTTYxFyEc2nQGSHYvyF4USq843HRnYMrdTpl2etdO6SUUbraBXizcrFNgOJMws3FSA5WTnUV2k1qOCJISWZJlnSV7L379P5KtJDofv2eGMTr+X6zHr97v/U59m5ubm740/C0O0RxkNxEI2g51H+xQwf4BsGuhz5fa3Ly41upmCQTlc2QQ1Etx6cZdWnAaJasFgnYjmgN3DL5Jw2Ic+tey0gNCWkE7s0M... | 2 |
math | grade-5 | identify-trapezoids | false | true | Is this quadrilateral a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADICAYAAADSmpa3AAAbEUlEQVR4nO3d+ZdU9Z3/8detqq6q3umFbkSCCIao0TGOceO4hENcRh1G0RAJKLLpCHG+k2Tmj5jznZj5HgWVNJvYKugwDkaiEg4T48GVYKJDDEFFZOt97679fn/A1L2Xtem6VbeW5+MnPtfq7vc5dlW/+tOf+yrDNE1TAAAAAFzh83oAAAAAoJgQsAEAAAAXEbABAAAAFxGwAQAAABcRsAEAAAAXEbABAAAAFxGwAQAAABcRsJEX2toSWr+6U7t+O+j1KAAAABkxeKM... | [
"yes",
"no"
] | null | 1 |
math | grade-5 | parallel-sides-in-quadrilaterals | false | true | How many pairs of opposite sides are parallel? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACACAYAAAAxkR62AAANyElEQVR4nO3de2yV9R3H8c8pBQFhAgJahiIKKJ3E2c2toiIimE1MwHF1QClYS7KiTqpbluBf6h8qRY3gZmEtV4UWM5egc0MEnCIzG25BuW7eBaFSdWUtlNLuj6ftrz2c0tvznN9zeb/+0a8p+EkoyYfDc84nVldXVycAAAAArkixHQAAAAAIEwo2AAAA4CIKNgAAAOAiCjYAAADgIgo2AAAA4CIKNgAAAOAiCjYAAADgolTbASLnHyXSrvVSj+9IXbraThNsZ05LVf+... | [
"1 pair",
"no pairs",
"2 pairs"
] | null | 0 |
math | pre-k | triangles | true | false | Which shape is a triangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJIAAACVCAYAAACzfqM2AAACZ0lEQVR4nO3UOW4UURhG0b/bQ2CmDERACCyBfXkhLIwdMGQEmNQGSxi3iqCERAZGV2oanRNV6elJX3D1NsuyLBc3Mx+uZ652M7fLwG8db2YeHM08P5t5cjqzufi2LG8u9z2LQ/bq4czx++v15+npzMt7a2XwO1e7mbdfZz7dzLy7ntle3q4HIuIuHhytzczMfNnNbHe/HMBd/Gzm+zKz3e8U/hdCIiEkEkIiISQSQiIhJBJCIiEkEkIiISQSQiIhJBJCIiEkEkI... | 2 |
math | grade-7 | changes-in-mean-median-mode-and-range | false | true | Look at this set of 8 numbers: How would the mode change if the number 2 were added to the set? | "iVBORw0KGgoAAAANSUhEUgAAAPUAAAAkCAYAAABR03zvAAAFp0lEQVR4nO3da2xTZRzH8e/pWrquW8eurLsw2K27IATlvggTX2iMF0IAowQTY3xhfGF8aYwxMRI1XhJjVN6g8Y0BNRGMGBOIggaFKUMGbLgNNsrGrt3Wcmk72h5fFJaNTTHxPD1y+H+SJdvT5fya/M+/zzlPn26arus6ADHQI0AcIcTtQgNsoKUD9utDuq7regSImvjEhBD/nTPZ3DZiSEMLYQVRIAY2XRpaCMvQo2CTe2ghLCQONnSzn4UQwjA62Mx+DkIIY0lTC2E... | [
"increase",
"no change",
"decrease"
] | null | 1 |
math | grade-7 | which-is-the-better-coupon | true | false | Which coupon will save Lacey more money on a trampoline originally priced at $71.00? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAVAAAAC5CAYAAAB+1GcnAAAvw0lEQVR4nO2dd3yb1bnHv5Ytb8fxthM709nDCSOLMBICoexyCy1ldLe0pUDXbemlpevSzbgFCrcbaMuloWUljAABEkgCCcEJZDrTe+8hWZbuH4+FJWu9ev3KemWf7+ejj+z3Pcuy9NNzznnO88S5XC5XnR0qeqBzABwuFAqFQuGHhDjIiIdZqVCQCHF1Npfr7Y5oD0uhUChii+UTIOFIj/xSlAhz0kRdFQqFQuFL5wAc6oZaOxzuAUuHQ24o8VQoFIrgZMSLVgJ... | 0 |
science | grade-3 | identify-pushes-and-pulls | false | true | A woman is going to topple a line of dominoes. Her finger applies a force to the first domino to knock it over. Which type of force from the woman's finger will knock over the domino? | "iVBORw0KGgoAAAANSUhEUgAAARoAAADKCAYAAAB6+o8hAAEAAElEQVR4nOz9eexty3XfiX2qag9n/I13Ht997903knwkRZGSKFKULFmiKakteZJsyXbLNjqJgLQROXIMBHCCtntAR0qABAiQdCbHbseGk3TL8ZDYhiy7HdmSKFHiKJF8fPOdf9OZ9lRV+aOq9t5nn3N+976ZQFwXv3umvWvXuGqt75rEz//8z1v+ffn35d+X/78ov/zLv/y+PDcCEP/07yCEAMBau/IXfttYiZQYY9Bau1d/jxCqvlcIgcVdZ4xBCEEcx6QRiGqKQCN... | [
"pull",
"push"
] | null | 1 |
math | grade-2 | place-value-up-to-thousands | false | true | What is the value of the underlined digit? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAAiCAYAAABlRa5TAAAIs0lEQVR4nO3da0hUzR8H8O9uuupqeUnFtEyL0sQK0heVrt3BCylFSzeKKMruQS80qUzKontCpXQn1BLMiAiykDJLu6ohmoiFmBKUWWtaaqnzvBCHjuvmqvvwp//z/cDCzJk5M3Pe/fYw5zcqIYQAERERERFZhPp/vQAiIiIiov8nDLCJiIiIiCyIATYRERERkQUxwCYiIiIisiAG2EREREREFsQAm4iIiIjIghhgExERERFZEANsIiIiIiILUgNAZ2cnVCpVv7+9e/c... | [
"900",
"9,000",
"90"
] | null | 2 |
math | grade-7 | classify-quadrilaterals | false | true | What name best describes this shape? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADJCAYAAAAZxkUSAAAXb0lEQVR4nO3d629c9YHG8WdmPOOZsWNPbHDChiTk4vgSO5ctJZTLBkjLLVWKIpYAi1gqrcSqqrpSVWn/CdRXqLv7YlUWsdyKUJptQkgbCAVaQtPmYsfOPU1CGtvEydjxXDy3sy+GM/bk6suZOefMfD8vQ7B/mLz4avI75/EYhmEIAAAAgCW8dh8AAAAAqCQENgAAAGAhAhsAAACwEIENAAAAWIjABgAAACxEYAMAAAAWIrABAAAACxHYAAAAgIVq7D6AVa6MZnW0P6l... | [
"parallelogram",
"trapezoid",
"kite",
"quadrilateral"
] | null | 3 |
math | algebra-1 | linear-functions-over-unit-intervals | false | true | How does f(x) change over the interval from x=1 to x=2? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAABphElEQVR4nO3de3wU153n/W+ru3W/IoEEsiWMMSRgBIiLDYYYD47tiRNPcJLFySaO5+XJbDK5zbxmL3my2bx2Ml4/2Z3J5InXyWazk43tnexm41fseGwiO9hgQ0QMRoBAMraxDAIBuiGp1ffqSz1/iFaQEdCN+tDd0uf9j62m66ujKlWdXx+dU+WwbdsWAAAAgLTIy3QDAAAAgOmEAhsAAABIIwpsAAAAII0osAFMsGPHDs2fP1/33nuvJOljH/uYnn322UnfG4lEdOu... | [
"f(x) increases by 5",
"f(x) increases by 500%",
"f(x) decreases by a factor of 5",
"f(x) increases by a factor of 5"
] | null | 0 |
math | grade-7 | which-is-the-better-coupon | true | false | Nellie would like to buy a crystal sculpture with an original price of $60.70. Which coupon should she use? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAASYAAADNCAYAAAAVMN0vAAA4CUlEQVR4nO2dd3xb1fmHH23J8rbjEa/EcRJnOjvOgCSQxfoxAoQVQlktmzal7NICbaEto6WkZSWMAoESwkoghJAEQnD2ns6yYzve25YsS7q/P2QrliXZsiU5knOezwece8+4r67u/eo957znHJkkSVKxCY42Qp0FzBICgUDQoyhlEKaAgSEQrwZZcZMkbak922YJBAKBjYnhoMxttB0kqmGw3qZaAoFA0JPUWeBwA5w2wZFGkNeabQlClAQCwdkiTGHTIIB6C8g... | 0 |
engineer | grade-7 | identify-control-and-experimental-groups | false | true | In this experiment, which were part of an experimental group? The passage below describes an experiment. Sue baked bread for a bakery. She stored her bread in clear bins in the back of the bakery, but she sometimes found mold growing on the bread. Sue wondered if less mold would grow if she stored her bread in dark bin... | "iVBORw0KGgoAAAANSUhEUgAAAUwAAAEICAYAAAA0p80lAAEAAElEQVR4nOz917Ijy5rnif1chIJYIjO3OKKqu3o4HI6RZjTjC5EXvJt3mSfgDflCJI28GpLT3TV9ztkiM5cCEMoFLz73gCMWVuY+1adr7yprT0MCCxEI4eH+9/+n1f/wP/wPkf/a/mv7r+2/tn9B7X/8H//HX+W8FuD/+n/7v6CUWr5USl38HUJY/s7byn2C86+2xXjGYa31xe/Ld/kjEGPEOcc8z4QQ0FpTVRVVVRFCuHrx+Rxa6y/epDGGGOPFNZXXUP5+vV+MEWP... | [
"the loaves of bread in bins with no covering",
"the loaves of bread in bins covered with dark paper"
] | null | 1 |
math | grade-1 | which-bar-graph-is-correct | true | false |
Rosa sorted through a kitchen drawer and found four pencils, two erasers, seven forks, and six red blocks. She made a bar graph of the items she found. Which is her bar graph? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAe8AAAEOCAYAAACgkZ/qAABQD0lEQVR4nO3deXxU9b3/8df3nNmyhyQsWYCwSUWtyCKICCptqYpQpS691tpqrVgt/dm61FvrdvVW5aoXrUu1VutCrbbqda21KggIyKIg+04WCCQkk0yS2c45398fZxLBFSSZYZLP8/HgkYWZM58zSeY93+/5LkprrWtisLkVQjZYGiGEEEIcRjwKckwYkgm9faBqolp/0JTqsoQQQghxIMbkgmdTq/tFsQ+GZrnJLoQQQojDR8iGDS2wKwYbW8Fostz/kOAWQgg... | 1 |
math | grade-2 | interpret-bar-graphs-ii | false | true | Simon went shopping for a party and bought some coolers and gift bags. He made a bar graph of the supplies he bought: Did he buy more gift bags or coolers? | "iVBORw0KGgoAAAANSUhEUgAAAYgAAAFfCAYAAABUeFuxAABQQUlEQVR4nO3deZxU1Z338c85995aewFpQBABZVFQEWwFRZ2AC2pMXKKJJnFGjYp51MRlEuNkkifJxIzRbJrEmGgW9VFj1DzoyBMXHESdqERbZdUoEkAQlK2bppeqe+85zx+3qrobiqWaXgr69369eHXXfqqA862zK2utRQghhNiG7u0CCCGEKE8SEEIIIYqSgBBCCFGUBIQQQoiiJCCEEEIUJQEhhBCiKAkIIYQQRUlACCGEKEoCQgghRFESEEIIIYqSgBBCCFGUBIQ... | [
" gift bags",
" coolers"
] | null | 0 |
math | grade-4 | what-decimal-number-is-illustrated | false | true | What decimal number is illustrated? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFICAYAAABqXYnbAAAKuElEQVR4nO3awY2zyhZG0ebJERECEXjqFAiIFDx1BBUCKdUb9JT7W+APqDZrTakjlVunpW2LrtZafwAAgIj/nX0BAAD4JgIbAACCBDYAAAQJbAAACBLYAAAQdPvXw34sR92Di5mnYfWMfWQv9pGW2EdasmUf+ccv2P5ZaYl9pCX2kZbYR2jPP3/B/vn5+Xnct31zeb6KWbOLc5/4S5/VbPuz9tFsS7P20WxLs5/u49V5BxsAAIIENgAABAlsAAAIEtgAABAksAEAIEh... | [
"4.19",
"4.30",
"4.20",
"4.18"
] | null | 1 |
math | grade-1 | addition-sentences-up-to-10-which-model-matches | true | false | Which shows 2+4=6? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUQAAABKCAYAAADDly0CAAAMVklEQVR4nO3dTYzc5n3H8e9Dcsh53R1pZVnSBorgWFISR45tpbDjFAUKtEpSxCcjhxiFj83FLSCg6C09FCiKoEB6CZrk2B6KJsc4dYLkEhQtEqgVgsQKEsmCoCrx6nWlnZ13Dvk8PXBG2l2NZoez88xwR/8PMNCuZuYhf+TiT/Ih+VAZY8ytEK62oB5DZBBCiKeCp6DiwskiPOuDutU15sLmvGdLCCHm69Ul8D5oJb8c9eF0KamWQgjxNKjHcLkJN0O40gJnM0r... | 1 |
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