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 |
|---|---|---|---|---|---|---|---|---|---|
science | grade-3 | use-data-to-describe-world-climates | false | true | Which statement best describes the climate of Buenos Aires? Hint: Summers in the Southern Hemisphere occur in December, January, and February. Winters in the Southern Hemisphere occur in June, July, and August. Buenos Aires, Argentina, is a city in South America. It is located in the Southern Hemisphere. It has a humid... | "iVBORw0KGgoAAAANSUhEUgAAAtgAAALOCAYAAACTXGSDAAD+VklEQVR4nOzdeVyU9733/9cM+zrsIAIiiiCCCC4guMZoTIwalzQxS2OTO3eSNud4etK7p0t699w9bU5/p01Omybt6RqzNYuJxohLEo3iEkVUEFFAQHZlEdlh9u/vD8pEBBXjwKD5PB+PPCLXXDPXZ+a6ZuY93+v7/V4apZRCCCGEEEIIYRdaRxcghBBCCCHE7eRrFbCzs7PRaDRoNBpSU1MdXY74Gtq4cSMajYZp06bd9GMFBQXZjue+/7y9vYmPj+enP/0p7e3tN1/... | [
"Winters have more precipitation than summers.",
"Summers have higher temperatures than winters."
] | null | 1 |
math | kindergarten | identify-pictures-with-symmetry | true | false |
Which picture has symmetry? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAay0lEQVR4nO3deXBd53nf8e855+4L1ouVADeRFElRlEiJojbTkiwvkSzVbuy4qdNJMp12MqlnmsmkkzadTpumre1JonEyttzEdmJJbiOrWqnFlEgtFClR4mJwB0VQBEiCAIj97tu55/SPA4CECJLAxQVeLM9n5g4u7nLOg+V33/e+5z3v1WzbtntycCYF8QKYNkKIGeLSIGzA6gDUeUDrydr2/pjqsoRYfLaWgast5XzT4IGbg046hRAzI16AT5LQnYPTKdBjpnO... | 0 |
math | kindergarten | fewer-and-more-compare-by-matching | true | false | Which group has more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAdoAAACGCAYAAAB630uXAAALCElEQVR4nO3dTYxddRnH8d8592XK0Jm+TGkFxFpaYWEDWqU1JBhEYoWkERB3aqKJazaIC0LCS+vKjXtWDXFj1AIJAvEloEEsGweJpgUspA0WZgbamaGduS/nuLhOO4UW2s59fv9zp99PQsqk9Dz/+Q7Jc+69M7dZWZbl0Zb0xglppit1SgEAgItUz6SRmvSFYWlDU8qOzpfl/unUxwIAYPnZMSrVXz/R++DKpnT95b0tDAAALs5MVzrwofTflnTwhJRPd3q/wZI... | 0 |
math | kindergarten | squares | true | false | Which shape is a square? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAG+ElEQVR4nO3d228UVRwH8O/srbs7s2x322qa8MCDqEQNRFAqBKWEPvhHEkJISHjgQRM1xkQTTXzgQRNj5FI0TdzSYmHb7q17Hx+W2Q6XLtCdOdfv540QdifdL5PTOd/fHsf3fX+zCzxoAfUB0PdBNLWUAxSSwPE88HYGcDY7vn+7JvuyyGRnjwCp1dboD4sZ4D13lEKiadUHwL0msNEF7reARK0/+guGjKJUSI4yBQCNAZAYhP6CKEpBpno+kJB7KWQLBo2EYNB... | 2 |
math | pre-k | circles-squares-and-triangles | true | false | Which shape is a circle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACTCAYAAAB28ADfAAADtElEQVR4nO3azW4VRxBA4XOvfxaEn10iHgDyCMgvyYPxBkB2WcTZ2mAJx1eTxWBhwIDtO1PdXXXOalotlWrxqVezmaZpOr2Evy7gfAdXE2Z7d7iBJwfw4hH8cQyb00/T9Oas9VqWuVdP4fD9xXx4fgx//jYrNNu38x28/Qj/XMK7C9ieXc0XIrMle3IwmwL4sIPt7saF2ZJdm/pvgm3bVaxKQrOQhGYhCc1CEpqFJDQLSWgWktAsJKFZSEKzkIRmIR0uPfD167+... | 2 |
science | grade-6 | match-chemical-formulas-to-ball-and-stick-models | false | true | Select the chemical formula for this molecule. | "iVBORw0KGgoAAAANSUhEUgAAAUgAAADsCAYAAAAW7j9/AABLjUlEQVR4nO29aZBcV33//b339jb7PqNtxpJGsmRL8oqNjXnAMUtlw9hUCBjIP8/zQKVIVap4lcqb/P9U8oLKu6SKqpAEyAsSHP6EcmwC+ZNgY/OYGAOWbNmyNFoY2ZJmX7unp/d7zvPi9LnnnLv0LOqZ6db8PlVT3X37bn2n+3t/2/kdi3POQRAEQQSwd/oECIIgGhUSSIIgiAhIIAmCICIggSQIgoiABJIgCCICEkiCIIgISCAJgiAiIIEkCIKIgASSIAgiAhJIgiC... | [
"CH4",
"C2",
"C4H",
"CH4N2"
] | null | 0 |
math | kindergarten | fewer-and-more-compare-in-a-mixed-group | false | true | Are there fewer squares or triangles? | "iVBORw0KGgoAAAANSUhEUgAAAXoAAAA2CAYAAADJTVIzAAAF1klEQVR4nO3dTU9idxQG8IdiES8CDk5N04xsmsFkop2YYDoaXDSyVBfd2K3Lfov5Fl123U0XTfdddNFZTNJk0nQxSTc1Ki+3MLxd0CuXLvCCGh3vhft6eH7JJCaDcA6HnPzBB4gMBoMBiIhIrE/8LoCIiNzFRU9EJBwXPRGRcFz0RETCcdETEQnHRU9EJBwXPRGRcFz0RETCzVm50OvfjvB35Y3btVj2YuUVXn/zk99lkMf4OAwXqfMKY1+WTvRBagoIXj3kjaDNPWj... | [
" triangles",
" squares"
] | null | 0 |
math | pre-k | cylinders | true | false | Which shape is a cylinder? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAOpklEQVR4nO3dfWzU933A8ffZ98zZd3BnsMEG29gGWhimIQ94SSElaZMM1KBtTTVpG4kypfmna7RpD1GqtUrKpklRo1ZbV61TYK3SZJNKHgo0El4JSaAhPBwCEvwAGGx8h+8O35N/9+zbH8ddbWyC7QA/f8+fl4TMff07+2N48/Xvnowhn8/n/Wno1SCWg2weIWYdowGqKqHVDovMYPCn8vkjUb3HEmLq7q0GY49WuFBnhhXzClULMdvEctA1Ar40dGtQEc0W3iH... | 0 |
science | grade-4 | read-a-thermometer | false | true | Select the temperature shown by this thermometer. | "iVBORw0KGgoAAAANSUhEUgAAAKkAAAKmCAYAAAA2HL7TAAB/cElEQVR4nO1dd3wUxft+9khCSHJ3AYT0gLQkhAQpEkrAnwoqggKCiBSxIE2UolQLioB0AZEqFnpTFKV9ARGBQEClhA5SUkB67hIQ0+b3x91udvd273bv9i6LzvP54Ji72WffefedZ96dm51lihePIoZuo0FBoVcYytoACgpXoEFKoXvQIKXQPWiQUugeNEgpdA8apBS6Bw1SCt2DBimF7uHnTfI5Cxdj19600pP5+SE8rCraP9kGjz/SypunlsW+AwcRFBSE+vUSy+T... | [
"40°C",
"39°C",
"29°C",
"32°C"
] | null | 1 |
math | grade-1 | interpret-bar-graphs-ii | false | true | Jenny asked nine teammates to vote for their favorite food. She made a bar graph of the votes: Which food did more people vote for, pizza or sandwiches? | "iVBORw0KGgoAAAANSUhEUgAAAZkAAAFfCAYAAACcFLFnAAB72klEQVR4nOzdd3gc1d3//fdsm+1NvcuS3LuFDTYYbJoJhFADBEJCbwkQCCE8CSQhjRbuG1LgBhJagCSEYGroxhhcsdzkbqtZvW3fnZlt8/whYuAXimVblmzO67pyoZ3dnf3OibwfnTlnzki6rusIgiAIwhAwDHcBgiAIwqFLhIwgCIIwZETICIIgCENGhIwgCIIwZETICIIgCENGhIwgCIIwZETICIIgCENGhIwgCIIwZETICIIgCENGhIwgCIIwZETICIIgCENGhIw... | [
" pizza",
" sandwiches"
] | null | 0 |
math | grade-2 | which-tally-chart-is-correct | true | true | Robert counted some vegetables at the farm. Which tally chart shows the right number of each vegetable? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEOCAYAAACzXGCqAACYQUlEQVR4nOzdd5xcV3n4/8/td9r2opVW3ZIsyb3bYIOxjTHGGEOwIQQwISSAQwgQ8oX4Rw8EQgmEEBwIYFMSbIONgwtFsnGVLfei3qXVavtOvXP7/f0xu7M7ml3V3dWudN6vl1/eW+ec1ch+7rnPeY4URVGEIAiCIAiCIAgTQj7WDRAEQRAEQRCE44kIsAVBEARBEARhAokAWxAEQRAEQRAmkAiwBUEQBEEQBGECiQBbEARBEARBECaQCLAFQRAEQRAEYQKJAFsQBEE... | null | [
"iVBORw0KGgoAAAANSUhEUgAABEAAAAEOCAYAAACJlWL0AADwvklEQVR4nOzdd5xddZn48c+pt09vmWRSSUIKoUYICIggTQFRBF1XgbViWVdcXVfXgq597XVXkfZbV0FBlG7oQiDUEFJJL5Ppc+fWc+5pvz/uzJ3c3JlkEjKpz/v14kXmtPs9w80w57lPUYIgCBBCCCGEEELsF4qiHOwlCCGEGIF6sBcghBBCCCGEEEIIMd4kACKEEEIIIYQQQogjngRAhBBCCCGEEEIIccSTAIgQQgghhBBCCCGOeBIAEUIIIYQQQgghxBFPAiB... | 1 |
math | grade-2 | which-bar-graph-is-correct | true | false |
Ellen cleaned out the closet and found four T-shirts. She found more sweaters and suitcases than T-shirts. Ellen made a bar graph of the items she found. Which is her bar graph? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAaMAAAEOCAYAAAAkF3jEAAB+SUlEQVR4nOy9eZgdV3nn/znnVNXdel+kVmuXLUte8KJ4kw02tgGHxXYGA04mGUIIBEII80sgEGaYhCHwYOIMCSELgRASYwiZCYYQApjVeJcXeZMtW/vSUrfUe/ddq87y+6Oqb8vBBhtbtyX5fB77ke5ap0rd93vf93zf9xXOOTcSw44qzBrQDo/H4/F4jhqBgHYFa4uwOErvEyMN5+6dWdiFeTwej+fFyQUdsCiCYHs1vWNJBOtKqVp5PB6Px3O0mDXwZAWGY9h... | 1 |
science | grade-2 | compare-properties-of-objects | false | true | Which property do these two objects have in common? Select the better answer. | "iVBORw0KGgoAAAANSUhEUgAAAWwAAADcCAYAAABUIpt4AADB4klEQVR4nOz9d5xkV3nnj7/PjZWrc5wcNVGjnAUCYRlhwIhoYxPM2tjrxbv22j9/nfCubRavsXedDQ7kZIKJBhEEyhpJo6wZTc4znbsr33zO749zq7p7ZiQ0MiwS9Oel1lS4dVOd+tznfs7zfB6hlFIAvu8zNjZGrVYjjmOWsIQfNizLolQqMTw8TCaT+YFua2n8L+H5hnONf6GUUp7ncejQIVauXEkmk8G27R/yri5hCRBFEb7vc/ToUdavX/8DI+2l8b+E5yPONf6... | [
"bumpy",
"smooth"
] | null | 0 |
math | grade-5 | types-of-angles | false | true | Is this angle greater than, equal to, or less than a right angle? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABUCAYAAAC4PkCPAAAIjElEQVR4nO3dXWxW9R3A8e9DW4HStbxUi7VvgJMlcwXUxbc5i0qVZUOasS2bGIrOuO1mJFOz3WzgbhadMbvZljgnOlmcWTY2l/C2aTHjRTIG1i1aE7GFIq1QaJvSFtpydgG1TGppyznn6Wm/nyvC8+T8f+3Vt//8zzmpIAgCJEmSJIViUroHkCRJksYTA1uSJEkK0aCB3dPRGvMYkiRJ0vgwaGDve6qatvf2xzyKJEmSlHyfuIP9z0crOP7fnXHPI0mSJCXaoIHd1dx... | [
"equal to a right angle",
"less than a right angle",
"greater than a right angle"
] | null | 2 |
math | grade-8 | rotational-symmetry-amount-of-rotation | false | true | This image has rotational symmetry. What is the smallest fraction of a full turn you need to rotate the image for it to look the same? | "iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAAAyzUlEQVR4nO2deXwc6Vnnf2+dfV+6JZ+SD9mSLM+MMzOZ3SSTIQECyZIEmADJwkKA8AE2EI5PsjPjQYw9k2HDsZtdCAkhkGvJAWwWEmA2ySQZNiSTeGYsy7J8yZZly7r7Pup+94/2oVZ3q6taVd0tu77/2JbrrXrV/f7qfd/nfQ7AxcXFxcXFxcXFxcXFxcXFxcXFxcXFxcXFxcXFxcXFxcXFxcXFxcXFxcXFxcXFxcXFxcXFxcXFxcXFxcXFxaUypNkduJO5MLYnJHG... | [
"1\n14\n of a full turn",
"1\n15\n of a full turn",
"1\n11\n of a full turn",
"1\n12\n of a full turn"
] | null | 3 |
math | kindergarten | fewer-and-more-compare-in-a-mixed-group | false | true | Are there more squares or triangles? | "iVBORw0KGgoAAAANSUhEUgAAAhwAAABsCAYAAAAhQ2uUAAAF8ElEQVR4nO3dwU6UVxgG4CPQErRk2pSptou6hcR0Ud2WG3Otl9Ob8A7cjFsWtjE10SmI2iLTRdW40DJT5vv/830+T8KGIDkvL5jX4zBzZbFYLBoAQKCNsQ8AANRncAAA4QwOACCcwQEAhDM4AIBwBgcAEM7gAADCGRwAQLitsQ8Ay3p4b9bms+Oxj/He5GC3/XT3YOxjdEtfECfjz5cbDtLo6Yertf7O05vevj69nQcuo7fv52XO88kbjof3Zu3VH6/bjcNpu/7LXtu... | [
" triangles",
" squares"
] | null | 1 |
math | grade-3 | read-a-calendar | false | true | What date is 4 weeks after December 2? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAF2CAYAAAAbcOzWAABdCElEQVR4nO3de1yUdd7/8dcMJxEFBATPiqLiAVHJTJHYzFIzO5jrrm57d69Z2/He1n6WN22H3TLvstqydrPdDmYnzSxFzfDQgkJqHvF8QDREQFQE5XyY+f2BjCCogwIDF+/n49HDmOua4TMfrpl5z/f6XtdlslqtViqJTi/hh5MlHC+wICIiIiLXr7O7mTEBLtzV3sXRpUgzYKoc8KPTizmSb2VyRxdczCasV7qniIiIiFyVCSixWPnqRDHdW5q5u72ro0sSgzNX/uG... | [
"December 23",
"December 30"
] | null | 1 |
math | pre-k | circles | true | false | Which shape is a circle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACbCAYAAACao4KyAAACc0lEQVR4nO3UO25UQRBA0ZrxJwAMGYgFAEtgNwQsjIDlsAM+OSa1jSWMR4/gCYncozvScE7UrZZKFVz1ZlmW5fJu5tvtzPVu5n4ZeLDTzczFycyrRzMvzmc2l7+W5dPVodfimL19OnP69Xa9vDyfefN4rRAe6no38/nnzPe7mS+3M9ur+/VBZOzTxcna1MzMzW5mu/vnAfbpb1O/l5ntYVfhfyE0EkIjITQSQiMhNBJCIyE0EkIjITQSQiMhNBJCIyE0Eqd7nfb... | 1 |
math | pre-k | represent-numbers-with-shapes-up-to-5 | true | false | Which group has 2 triangles? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAEcCAYAAAAV9AvgAAAHLElEQVR4nO3dzWtc5xnG4UeS7UXqpJSGhKxL22VpF8260FX/tRDIyl0lWXkTYifgLqJFvLMxwV4ZbNLYQsQYqRg8YMki1sdMF4PTOv7Qx5y5z5lX17XSaCTxPov5zYzmnPcsTSaTyeZu1b2dqq2Dqv1JAXTizFLV2ytVv3+r6v1zVUubzyaT7570vSygdR++U3Xmh53pjQ/OVf3xV9MaAXRh66Dq+6dVG7tV/96pWn6yP71DbICuvb0ybUtV1fZB1fLB/90B0LX... | 0 |
math | algebra-1 | model-and-solve-linear-equations-using-algebra-tiles | true | false | Which set of algebra tiles represents the equation 3x+6=12? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUkAAAB6CAYAAAAyE6EfAAAKTUlEQVR4nO3db2wT5wHH8Z/P+QNxG0BLTJKWooauNKk2FSpEUdcXG6oKk8omhVX05aRK7MW2V1GnSt3rBl4hVSjTpE1VNa3bICC1mpQFTXRNW5pWkMJoMtoFliwjxDE4dWzy9+72wjOUlj2NE599d/5+pCg5x/bvIj3PT7HvfE/EdV332oL0z5vSjC0tuQKAilUVke6NSt+skzbWSJFr8677YbrcuwUA/rOzXqr67GZuo7lG2hrLNSgAVKoZW7qUlSYWpE9vSlZ... | 3 |
math | grade-4 | elapsed-time | true | true | Look at this clock:What time will it be in 9 hours? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADICAYAAADSmpa3AABUU0lEQVR4nO3deXhTZdr48W/SLW2Spgs0DUtb6AIItIAiKKsLIgpuwIjLKCPizE9QcZxRHHE2cYT3nVFQcOZVUFAREFDZQRCh4ACC7IjSAqUsbQotTZO0adomvz9CU0LSfaXcn+vqZc9znnPOnRKv687Jfe5H4XQ6nYhGcaEwj7S8DNLzMjhnNmIqNmOxW7HYC7HYrZgv/9dS4vpvvq0Af6UfOlUomkA1moAQNAFqtIHBaALVqAND0AaqCVfpaK/V0zk8lvjwjrQJiWj... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA7gAAADgCAYAAAApDMpcAABr/0lEQVR4nO3deXhTVcIG8DdJ26RN0nSBpmFpC11YhBaQVSiLigiyqIDgMooi6iegqOM2gssII8yMCgrOjALigoCAyg6ytyAgSCmLSlugLUubQkvTJG2atsn3R2hKSNI1S5f39zw8NOfe3HsScsp7bs49RwDADCIiIiIicgmz2YxcI5BRDGgrgHKmbSK38REAchEQGwAo/QAB2MElIiIiInKZ3FIzfi3ydi2IWp5+gYCPtytBRERERNScpBdb/lb5AZ2klm+XiMg... | 0 |
math | pre-k | circles-squares-and-triangles | true | false | Which shape is a circle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJgAAACaCAYAAABVCoEqAAAMWUlEQVR4nO3de4xcVR0H8O85597Z3ZnuzO66rz7oS56CSgmIwYiiBawVBaoxyKOKBCwxoiIxaIRKAgS1IRqkBCT6l4CkkEqg0giKAR+0lJJIpFJa2y7tbkunu7M7052595zjH7NtCpSyc+7j3Dvz+/xT2Pb+zq+cL+eevffOXaa11sM1YGsFGJeAr0GIMYcBnQI4IQsMZAA2XNX6xZLttkgzOjsPOK9X6v8yMwOclKunjxBT4xLYUgb21ID/VgBe8uu/QeEiYeg... | 0 |
math | kindergarten | represent-numbers-up-to-10 | true | false | Which group has 5 stars? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAEcCAYAAAAV9AvgAAAK+UlEQVR4nO3dQWhc57mA4U/OJFjVuDJ1uSKxShbCI6jBAkukWlbdBnsVb1zwVllGEG8cCNRkF4i3LfEq0AsiO4ebZe1dQkmhCtyClJtFqeLENFOSSI6UVGa60B2jxCNZls5858zR82wsWdHR/0P0Mp9n/jNDnU6n88X3Ef/3bcTag4itTgAUojEUceKpiDM/iRh7JmLoi+86nT9/U/aygLr71U8jGp98u/3Js89ETI5s1wigCGsPIpbvR3z+fcTKtxHHvtna/oL... | 1 |
math | grade-8 | apply-multiplication-and-division-rules | false | true | The number line shows an unknown number, d. Is 3d positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAGr0lEQVR4nO3dXWhU+R3G8efMZF6cSRpdGzVrlRTqiiJYY5wkVoqFvagVCxFT6o1IBVlFcGEvbEvpVZDmotJSLQp2KV4E7UK8sK2wN2W03Z2ZOMaBYNzaNql2RZINu64zybyfXswLpuZtu+OcOZPv52rmTC4eOHPxzD+/8/8bpmmaAgAbGRgYkGEYOnz4sNVRUCXccwB20mB1AAD4oh4/fmx1BFQZ9xyAnSy5YGcyGUWjUYXDYa1Zs4ZVBNSUWw8y+vO9tB4+zSmeNLV... | [
"negative",
"positive"
] | null | 0 |
science | grade-5 | identify-ecosystems | true | false | Select the tropical rain forest ecosystem. This ecosystem has:
warm, wet summers and cold, wet winters
soil that is rich in nutrients
only a few types of trees This ecosystem has:
hot summers and cool winters
a medium amount of rain
soil that is rich in nutrients This ecosystem has:
year-round rain and warm temperature... | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAp8AAACtCAYAAAD2xRSHAAEAAElEQVR4nOz9edRtaVnejf6eZnare5vd166idlFVFJRQUBQgCIISmpPgdzLEPggD0aGJw8TYkGAzwkm+fEoGMZ/REHVEQRqTmE+jmEQ0BkFQEEEoukLa6nft7u1WN7unOX88z5zvencVNjlROal1FWusvbrZrpd1zeu+r+sWHzzw/pYhjBVrrLHGGmusscYaa6zxl4KZhU8vQEyN92viucYaa6yxxhprrLHGXzZmFoT33v91b8gaa6yxxhprrLHGGo8O6NUH//o... | 2 |
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? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAA/CAYAAADaDb8WAAAL/0lEQVR4nO3de3CU9aHG8WeTzYWEEBNIKEEwtIEQQoIj7YTxAAcFFSkatFUPlx4uljO1R8aIUaggN7kIgsDYMkypGo+0DB60gTqU1kAyIW2Tc8TJhTWEIKRGgVxIyJ1Ndvc9f6RwrFwjm7y7m+/nv7z7Xp43+8+zv/m9v9diGIYhAAAAAG7hZ3YAAAAAwJdQsAEAAAA38rmCfbHZqflbyxXxVL4s0/+i+VvLdbHZaXYsAAAA9BJWswO427ytJ7W/oO7K3xmHq2VIynh... | [
"greater than a right angle",
"less than a right angle",
"equal to a right angle"
] | null | 2 |
science | grade-2 | compare-temperatures-on-thermometers | true | false | Select the thermometer that shows the lower temperature. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAI4AAAFICAYAAACGO8YVAABCwElEQVR4nO19aZAcx3Xml9UzPd0zmKNnAAwwByVchHgBJEBBJsRTF0WKlCWZClPUQUqWBJGMMFdhx+4Ph4/QbsSGtCubQa9tULQcpqzVCrErSrbAKyxaFm3xBHEtQZAgAFIEZgYgOd0zwEx3z0x35/6oruqsqjzr6G5y8RiMxNSrV/ny1XtfvpdZVU0opfTUInC0CJytAhWKc3SOPNRBgN4UsKEbGE7bx8ipBUqfO9Naxc7RO4c+0AesTAMdrxbtA6vTwMYe27P... | 1 |
math | grade-7 | cross-sections-of-three-dimensional-figures | true | true | Identify the cross section of the cone. Assume objects are perpendicular if they appear so. | "iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAAAy8UlEQVR4nO19XXAkx33fb2Z6d3uBBW5wHyL4pQNlWoJpmzwqsp04LpmKvyI/qGjJqWKVXqyo4gcnpWL5QVV5SJ385MiVMm2V45Siku0kL6rIrlNZsuRYtkk5onQUFR1NWsdv8qTj3eHucMAAWAC9u7M7eZjunn/39CxwIO6A3e0fi9jdmZ6enr7+9//j9+8ewMPDw8PDw8PDw8PDw8PDw8PDw8PDw8PDw8PDY+IQHHQDPA4Ov/XFVx8F8KUDbsahRvBbX3z1oNvgcQB... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUQAAADICAYAAACQ75jRAAA/K0lEQVR4nO29W5Ac13nn+cvMU1Wn+oZqoEEABECAtCi2aEsECY1Fjy2JXknkyg8OSl5HMMSX8XA1D94NieEHxzo2ZinPPNiemDBH3FltzEr0zOyOPIr1TJCzkiWLtCyKFi1QEglatECAN4DErQE00NX37Kqsyn3IPJnnZGZVN8Curu6u87fFrs7LOacSVf/+Lv/vOw4WFhbdEPZ7ARYbB7ffC7CwsLDYLLCEaGFhYRHDEqKFhYVFDEuIFhYWFjEsIVpYWFjEsIR... | 2 |
math | algebra-1 | identify-linear-quadratic-and-exponential-functions-from-graphs | false | true | What type of function does this graph show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAETCAYAAAAMFHHvAAAZEUlEQVR4nO3dX4yU93kv8Gf4t8uubTbx2YU4SQHFNht7Ey9dzJ+2sgy9CbEnkdPGpLmzJUu1mtykF60q1U3rOHKkKDfBiRJViZP6IqRuDhVUWHJUqqrqLjgjrxNAS87p2bU5TfBy7OwaLyzLn/dcbGZ2F9Yww74z7/z5fG6YGZ4ZP4DFfHn1vL8nlyRJEgAAQCqWZd0AAAA0EwEbAABSJGADAECKBGwAAEiRgM2ipqenY3p6Ous2AAAajoDNooaHh2N4eDjrNgAAGo6... | [
"linear",
"exponential",
"quadratic"
] | null | 1 |
math | kindergarten | hexagons | true | false | Which shape is a hexagon? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAACd0lEQVR4nO3UO25UQRBA0ZrxJ+CbgVgAEBGzBTbCqtgIayAl4pNjUhssYTx6BE9I5HjuCHNO1K2WShVc9WZZluXsaubz5czFbuZ6Gfhrx5uZ+0czT+/MPD6d2Zz9WJZ354dei9vs5YOZ40+X6+XJ6czzu2uF8LcudjMfvs98uZr5eDmzPb9eH0TGTbp/tDY1M/NtN7Pd/fEAN+l3Uz+Xme1hV+F/ITQSQiMhNBJCIyE0EkIjITQSQiMhNBJCIyE0EkIjITQSQiM... | 2 |
math | grade-3 | is-it-a-polygon | false | true | Is this a polygon? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADGCAYAAADokPfHAAAUIklEQVR4nO3dO3CUZ5ro8UfXbnRZNJFEhFyFauTIgmRwgAYyCydQZwc80dpW4qqZHXuj9QwOToB3ZqMzeGZqNwE7s8G7BQmXzKyoLeNEyJHlFVUrR2qi1awutC6tPkGrGyHA6PJJ/XX375dQ1mDx2uWq+evt53u+pmKxWAwAACARzdU+AAAA1BOBDQAACRLYAACQIIENAAAJEtgAAJAggQ0AAAkS2AAAkCCBDQAACWqt9gGoTXP5YjzMFWIqV4j5fDH+a/3XiIgH06s... | [
"no",
"yes"
] | null | 0 |
math | grade-3 | correct-amount-of-change | false | true | You pay $4.19 to buy a plastic watch costing $3.77. You receive the following change: Is this the correct amount of change? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACMCAYAAABGU97NAAB+RElEQVR4nOz9d5Tc933f+z+/db7TZ2d7LwAWvTcCJAASbCqUZfVqKbbjOHGTk5ucXN+fE9/kptx7Uuy4xMd2LEu2rGZJLKLECoIgQYDove5iF9t3Z2enl2///v5YEBIjyaYkkCCoz4OHhzzgzO58X2d4zns+8/6+31IQBAGCIAiCIAiCINwS8u1+AYIgCIIgCILwTiIKbEEQBEEQBEG4hUSBLQiCIAiCIAi3kCiwBUEQBEEQBOEWUm/3CxDuDI5Zp1qtYlkm9WoV17a... | [
"no",
"yes"
] | null | 0 |
math | grade-6 | interpret-double-bar-graphs | false | true | Mitch, an employee at Alexander's Convenience Store, looked at the sales of each of its soda products. Which beverage had lower sales on Sunday, Krazy Kola or Natural Goodness Juice? | "iVBORw0KGgoAAAANSUhEUgAAAbEAAAJsCAYAAABzmJ3dAABxMUlEQVR4nO3deVxUdf///8cwoCwjmoiiUrhlJiIokoCampdrVmpktlma2iWa5pJtXpdW+s01F9LKrfQqo9SwTEsjU1GxDPcVcQdFBQRxJZbfH/6cT5TiypwZfN5vt24558z7vF9nZuDJ+5z3nGMqKCgoQERExAE5GV2AiIjIrVKIiYiIw1KIOZjFixfzyiuvsHr1aqNLcSjjxo3jlVdeITU11ehSHJZeQ7FHzkYXYCsnT55k6dKl7N69m7Nnz2KxWKhVqxYdOnTA19f... | [
"Natural Goodness Juice",
"Krazy Kola"
] | null | 0 |
math | algebra-2 | solve-a-triangle | false | true | In solving this triangle, which law must you use first? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADCCAYAAABzAbXRAAAaZ0lEQVR4nO3deXDUhf3G8WdDEogJEvkFELHljEiI4YhCwiW0tU7xAESggIiIENqfKOCEFgoiUIPSIox4cFmMXIUqh5bDKiX8CCRCSDRyhMtAMCAGMJiD3Pv7A4kGIud397vf/b5fM/nDZNn9OM44zyyb53E4nU6nAAAAABjCx+wDAAAAAG9CwAYAAAAMRMC2mO+++05xcXGKjo5WSEiI/Pz8dMcdd6hPnz5atWqVysvLzT4RAADA1gjYFrJu3To1a9ZMe/bs0ezZs3X... | [
"Law of Sines",
"Law of Cosines"
] | null | 1 |
technology | grade | font | false | true | Identify this font type | "iVBORw0KGgoAAAANSUhEUgAAAPoAAABQCAYAAAAwa2i1AAAG0klEQVR4nO3dT26jPBgG8Def5g5dVDmAs6A5RE0WVfcj9QKzcjcVPQPRbMpqLpATVLMw9BCZLOAA0Sx6Cr4VUSYFGxP+2Pj5SZVGk0LchAfjFwOLsixLAoBZ+2/qBgDA8BB0AA8g6AAeQNABPICgA3gAQQfwAIIO4AEEHcADCDqABxB0AA8g6AAeQNABPICgA3gAQQfwAIIO4AEEHcADCDqABxB0AA8g6AAeQNABPPBt6gbAfKVpevr3crkkxtiErfGbE0EvioLe39+... | [
"Nadianne",
"Vivaldi D",
"Matisse ITC",
"Impact"
] | null | 3 |
math | kindergarten | subtraction-sentences-up-to-10-which-model-matches | true | false |
Which picture shows 8 − 4 = 4? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAXYAAABKCAYAAACvkX8HAAAWEklEQVR4nO2daXBd1X3Af+cub5P0JFle8YIxGJNAjM1iMEtYsrRpWEJwJgQoMZ1paZjM5AsfOv3SadJmmkza5kMy00wntQmQZWIyLYEkTcAFQ+IFsB1jApJs4wXbWmwtT2+92+mH+xY9Sc+yxXuWLP6/GVm+79173vm90f9/zzn33HOV1lr3OHAgCyM+eBpBEAThAsJS0GLCygQsiIDqKWi9KzXd1RIEQRDqwQ1JsLqz4caiCKxqCrO+IAiCcOEw4kNnBk460JU... | 1 |
math | grade-4 | identify-equivalent-fractions-using-number-lines | false | true | Is 1/4 equivalent to 1/3 ? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABwCAYAAAAkAwevAAAS2klEQVR4nO3df0zUd57H8dfIT0F+OYzi0BbUE0UldiuHzFbFq73GnqHt+iPS2sNeY1obu5smdf/wmttsN7lGkt1gqn9A/2h00V50N5fFBHN7VSOkhN/tWfXU7dGiqyM/ZJEqM+gMzv3RQktFxTLwme/wfCT8Md8ZzeuPz3fmxZvP9zu2QCAQUJioqKiQ2+3WL37xC02dOtV0HFjYuXPndOTIEa1cuVIul8t0HFjc+++/L5vNpp///Oemo8Diamtr9cknn+j555/XggU... | [
"yes",
"no"
] | null | 1 |
math | pre-k | represent-numbers-with-pictures-up-to-5 | true | false | Which shows 1? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAT2ElEQVR4nO3deXCc5WHH8e+7p7Sr1S1LsmRZtmQ7so0xLmdTwDYBYxKcFkJSCAkpnUkzaSYJaXO0nU6m7TCEzKRNGqZtJk2ANCShkIaBEghpBgiFODY2PnCCfMmHjpW1WslaaaU9n/6xtozQWloJrx+n/D4zHkv7vvvuuxp//ex7yjHGmHASDsYhloG0QUSKxONAyA3LAlDvAyecMGbbiO3VEnnnuaIcPAfiuW8afbAimKtTRIojloHOMehLwv44uEbSuQmKT6T... | 0 |
math | grade-3 | reflection-rotation-and-translation | false | true | How has this figure been transformed? It has been... | "iVBORw0KGgoAAAANSUhEUgAAAPoAAABkCAYAAACvgC0OAAAL5ElEQVR4nO3dfWwT5x0H8O8lsevE57xBiaEM2hKgJV0DKWq7QhtHRWu3sq6UbpRKU5NJBWnqpCEqtZpWYUv7o/ljWytt09JNItU0Sie6opYypr4kIaGoIyE3sbQE0jYERsJLgpMcSWxsbn8Ehxj88pzjyz13z+8jgXDyy5Mn9n25x5e730nV1dWaz+dDNrS0tEDTNNB4mY/X1NSUlbHM5vP5uH6eRRsvz+fzwe/3Z2XAQCAATdNovBmMZxe0XfE1Xk5WRiKEcI2CTog... | [
"reflected",
"translated",
"rotated"
] | null | 0 |
math | pre-k | one-less-with-pictures-up-to-5 | true | true | Count the cars in this group. Which group has one less than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABmCAYAAADxjOYpAAA5DklEQVR4nO3dd7gkV3nv+++q0DntnMPkPJoZ5VEYZUAIJBOMjUmSjRPYxwlzfH1sn3sOmPNwL/jaMvj6AjZGHItkC4SQCEJCQiihMDnP7JxD51hdte4f3bNntmZGiT0DQu/neaTZu7u6urre/cevVr+1ltJaa4QQQgghhBBLwvh5H4AQQgghhBC/TCRgCyGEEEIIsYQkYAshhBBCCLGEJGALIYQQQgixhCRgCyGEEEIIsYQkYAshhBBCCLGEJGALIYQQQgixhCRgCyG... | null | [
"iVBORw0KGgoAAAANSUhEUgAABOwAAAB+CAYAAACXpI7eAABuOUlEQVR4nO3ddZhk53nn/e+hYmpmmBkN84iZZVmWJceYzZokb2Dj0CabZBNvshAn2c0b2xvboY0dsL0xJgbZMikiiy0Y5plmhmI69Lx/VE1P94A0olGPfX+uy+5RddWpU+epu69f3fWc52iAQgghhBBCCPGaUEoxacPREuQ9cCVtCyGEEOJFmBrEDVgdgbZA7TYNadgJIYQQQgjxmpmsKp7JvdF7IYQQQogL0eUJaA2A+UbviBBCCCGEED9JjpRqPzsCsDZa+8Z... | 2 |
science | grade-2 | read-a-thermometer | false | true | Select the temperature shown by this thermometer. | "iVBORw0KGgoAAAANSUhEUgAAAI4AAAHPCAYAAACFjuJ1AAAfqUlEQVR4nO2db2wb553nv/wj6+9MN4mLxuSg7cJeLVls0XUtk69uD1ZJILcBKkvNmwPEULstsIhoYjd7OJi2cC8OV8nSFthuRNsvtmhBRQb2TURVxl2wu2IcHHYXDblIi+wGJaMEOCAYKn+2NuKhElkS/9wLhVNSohRpHg4149/vAwixZjjDx/Wn33memWd+j+P+/fs1MMwxcZ50Axh7wuIwhmBxGEO4D9pRq3HXh9nF4XDs29ZSnJ2dHWiaZnqDGHvQ29uLvr6+pm1... | [
"35°F",
"70°F",
"40°F"
] | null | 1 |
science | grade-5 | 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 | [
"iVBORw0KGgoAAAANSUhEUgAAAOoAAADGCAYAAADc+hwDAAASLElEQVR4nO3deXCc5WHH8e/77qHVHjpWl+VLNr4xWDgcPmIIYGyXkhAIkJB0klCaSTp0mqQzncw0LZ0203amJcckbSdJp8kkQ0OTAHVwAANxYseAT7BjfCMZLGNZ97WrXe29/UP24kUrLEuyV4/5fWY0Iz3v8z77vBr99Lz7vs/7rJXNZrPtCWiOQjgNqSwiUmROCwIOWOCFOjdY7fFsdk+o2N0SkdGsKANnU3T4h3o3LPINp1hEiiuchuMRaEvAm1GwQ6nhDQq... | 2 |
math | grade-8 | changes-in-mean-median-mode-and-range | false | true | Look at this set of 7 numbers: How would the mode change if the number 71 were added to the set? | "iVBORw0KGgoAAAANSUhEUgAAARcAAAAkCAYAAACjSn5jAAAJkklEQVR4nO2ce1Bc1R3HP/uAZdllYYElwPIKG9gAQiQGxaAJ1bY6aXVsamqrU9uO49Q+Zlqd6R+dTqcztnbs2NbaTlvHUTvtX7HGmtFYo9GaaG0kMYSQEF4LGzbLY3m/2Qe7t38sLNkAYWnuhZScz397zj17v3N+v/s7v3POPVclSZIEwCxIXiAEhEsEAoEgNlSAGlQJgHauSJIkSfICvnUUJhAINg66cJBRM4sILAKBQD58wCyoJRFYBAKBzEg+UBNcbxkCgWDDEQS... | [
"decrease",
"increase",
"no change"
] | null | 2 |
math | grade-8 | rotational-symmetry-amount-of-rotation | false | true | This image has rotational symmetry. What is the smallest fraction of a full turn you need to rotate the image for it to look the same? | "iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAAAclklEQVR4nO2daXRd13Xf//vce9+EmQDBCeIgOZQVSSYlUVQkAhAUmbZkW7ImOqm8YrtOQnMQLa3WyUrTNKWdpm7stdpKFACFiW21suLVsmnXStIqieuYBEhJtiJ5qEhL0ch5AEDMb7zn7H4AIREC3sO999377hvO75v07tlng+/975n22RvQaDQajUaj0Wg0Go1Go9FoNBqNRqPRaDQajUaj0Wg0Go1Go9FoNBqNRqPRaDQajUaj0Wg0Go1Go9FoNBqNRlMiKGwHNAD... | [
"1\n7\n of a full turn",
"1\n5\n of a full turn",
"1\n9\n of a full turn",
"1\n4\n of a full turn"
] | null | 1 |
science | grade-6 | identify-earths-land-features-using-photographs | true | false | An island is a piece of land that is fully surrounded by water. Select the island. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOEAAAC0CAYAAABi8Es+AAEAAElEQVR4nOz917Nl2ZHmif2W2uKoqyIiI1IAKKBQXWhVPd1jbU0jjTSbv4lP/Jf4RjOSr/NA65mxat2FAgoqkZkRGeLqI7Zaah587XNuZAPV3VNTNUMS2ywzIu49Yovly90///xzNd39PzJPjhAVIWRCUqQEGXX6ZZb/lT/IQH767id/f/pzpcEYqJz8e5ogxEzOCnV8W4b5uxSoDMZkUpZzyEkxf7tCyVnMb8nzOT49gdPHzT9Vxw+f/57QWsn5lXNUWl6b0uk... | 2 |
math | pre-k | what-comes-next | true | true | What shape comes next? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAD1CAYAAAAlI4EUAAAOW0lEQVR4nO3dX48dhX3H4d/MnD/r9dprDLVjoEWpk7tKKGoiVCWUmza56rtp74iqNryJSr1N30BVNa3aC5qoVGpUlUg0KKkrgsABnKxtzK59/sxMLhYbQ0zxrM+ZM/6d55EQN/jM+KvD2c/OztlTtG3bBgAAkEK56RMAAABWR+ADAEAiAh8AABIR+AAAkIjABwCARAQ+AAAkIvABACARgQ8AAIkIfAAASETgAwBAIgIfAAASEfgAAJCIwAcAgEQEPgAAJCLwAQAgEYE... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAz4AAAD1CAYAAACRDCAyAAAQzUlEQVR4nO3dX28c130G4N/M7B9yRZGKkpCh5dZIldwVMII6MAonzU0bX/XbtHcJijb5EgV6636BomhatBdpjLpAg6IJoCRIqkIJJEaWXEoyTVK7szPTC1qy7MiNhlzOLM8+D6ALS/LM4avBznn3nJ3NmqZpAgAASEKWZX0PYSnlfQ8AAADgvCk+AABA8hQfAAAgeYoPAACQPMUHAABInuIDAAAkT/EBAACSp/gAAADJU3wAAIDkKT4AAEDyFB8AACB5ig8AAJA... | 0 |
math | grade-7 | rational-numbers-find-the-sign | false | true | The number line shows an unknown number, z. Is z positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAlwAAAApCAYAAADgbPfrAAAGEElEQVR4nO3dXWxTZQDG8ed09sN2OCZuDs3m1GiUYBbCKNsy4+4X1C6QiDGIISGBcM+lN0jCPRiIJCYoE6LpQtBFY0wszGTtNmChYYkfYRbUuWU63Ee/1h0vtNW5wVr19LTb/3e1983Z+izn5uk573mPYZqmKQAoI93d3TIMQ7t377Y7CoqEc45yd5/dAQCgULdu3bI7AoqMc45yl3fhSqfTGhoaUjgcVm1tLd8ygFVkfCytvtC07kxlND6WVkOjS7V1TrW/8IDcHsP... | [
"negative",
"positive"
] | null | 0 |
math | grade-3 | identify-parallelograms | false | true | Is this quadrilateral a parallelogram? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAB4CAYAAADIUIXCAAAKhUlEQVR4nO3df4zX9X0H8Of3OORS0F4kkQ0S5mimplbtKomaaMKajKhJy6iD6jpPxV0UsN1s+aNJyRYTTfyjznRRgV0Vc7SFQualmtmGLYTObtpFTbRphzirbSYOMhZ+rgcc990fX+AjWym/vnfv+36/j8c/n3t+8/nj+QeXPHO5e1Gr1+v1AAAATdFVugAAALQTAxsAAJrIwAYAgCYysAEAoIkMbAAAaCIDGwAAmsjABgCAJuo+o7eeX5l8sC3puWiM68BZOHok+dW... | [
"no",
"yes"
] | null | 0 |
math | grade-6 | which-model-represents-the-ratio | true | false | Which model represents the ratio of 6 stars to 2 squares? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAfAAAABVCAYAAAC2CrYPAAAJpklEQVR4nO3du1MbWRbH8Z8kWrxadhXa2h2RQAImgASCAScmGZyIxMr8Z85OMkREDqbKEznwmAlEMnhrlwksYE0L6A20PcYY9KIf9+p8P4mLh0WfOkf3dJ9udZfiOI4/RtLvF1LnWrqKBQAAHDNVkmoVaWVO+kdVKn28jONfPhW9WQAAYFjfP5Gmji56XzSq0rP5XncHAABu6VxLv51LJ5H04UIqf7rq/YDmDQCAu2qVXq+WpLNrqXx96wcAAMBdSa/uxlK52E0... | 1 |
science | grade-5 | animal-adaptations-skins-and-body-coverings | true | true | Nautiluses live in the ocean. They have a hard outer shell.
The nautilus is adapted to protect itself from predators with sharp teeth. It can pull the soft parts of its body into its shell when attacked. Which animal's body is better adapted for protection against a predator with sharp teeth? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEKCAYAAABnkCFsAAEAAElEQVR4nOy9d7wdVbn//15rZnY7+/Sckx7SIRAIBJBeQrkUuYgCSlXBCoICgoK/i0pRuYLyVaR7FbiCYFSqFyGIgIAYCRADoYeE9Hb62W1mrfX7Y8rZ+/SEJBTnzWtz9p66ZmbtnWc96/M8jzDGGM/z0FoTExMTExMTExMTE/PhREqJbdsI13VNbNzHxMTExMTExMTEfPiRUiJj4z4mJiYmJiYmJibmo4HWGvl+NyImJiYmJiYmJiYmZssRG/gxMTExMTExMTExHyF... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA88AAAEKCAYAAAAsMWftAAEAAElEQVR4nOy9d7xtV1X2/x1jrrX3Obff3NyUmwIJoQcCAaRIKAJCEBElSBFUxAailBcV/fzEF2IH4aOIgFgAX1GIgggWQBF8XxAjSYggItIi6f32c/Zec47fH2PMtfc5tyc3BVwPn8M9Z5fV18p85vOMZ4iZWdd1lFIYMGDAgAEDBgwYMGDANyZUlaZpEJE7elMGDPimhA7EecCAAQMGDBgwYMCAb3yUUui67o7ejAEDvmmhA3EeMGDAgAEDBgwYMOCbA8PYfsC... | 1 |
math | pre-k | ordinal-numbers-up-to-fifth | false | true | The first picture is a train. Which picture is fourth? first | "iVBORw0KGgoAAAANSUhEUgAAAaUAAABdCAYAAAAFZHluAAAijklEQVR4nO2de3xTVbr3f7tNpUlDE2wt1V4oEmxBekNBJK3Wj4IiKOjocBsFxHlHCjg4DAXUkfQckBZQUUvhvC9Xz0EQvIFUEJwR31IERFpaoGVIx7QFCVCYhqZJoUn2+WMnu0mby85ukuayvn/ZZu21Vhfb35NnrWc9D0XTNA0CgUAgEPyAsN6eAIFAIBAIFohRIhAIBILf4DWj1NJBY+B3N5H9j1a0dJAdQgKBQCC4hpdR+vpyBwrr2p0am8PNBqh0JlRpjJj1i47... | [
"bear",
"plane",
"train"
] | null | 0 |
math | grade-6 | similar-and-congruent-figures | false | true | How are these figures related? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAB4CAYAAADIUIXCAAAH6ElEQVR4nO3dz2vcaR0H8E/sEtkUO9moqwc1E5B13SYwuQj+wLbiQVmk8x80F8G99SDsQfAPEJb0puCpeNibJOpNhAT8AV4ypYmyKjjgQa3b7EyXFhots4eYxLRJU+oz3+93nuf1uvSQbeY57OG9n33nnanRaDQKAAAgiQ/V/QAAAMiJgA0AAAkJ2AAAkJCADQAACQnYAACQkIANAAAJCdgAAJCQgA0AAAkJ2AAAkJCADQAACQnYAACQkIANAAAJCdgAAJCQgA0AAAk... | [
"neither similar nor congruent",
"similar but not congruent",
"congruent"
] | null | 2 |
math | pre-k | circles-squares-and-triangles | true | false | Which shape is a triangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACKCAYAAABSKVOMAAACXUlEQVR4nO3dO24UWRSA4dPtRwCGyUDkvHbAzljELI0VDI8ck9rGEsatmqAHaSISl/4e9XxfdlXS0Ql+1c2qNsuyLJd3M19uZ653M/fLwIOdbmaenMy8ejTz/Hxmc/ljWT5cHXotjtm7pzOnn2/3hxfnM28e7yuEh7rezXz8PvP1bubT7cz26n7/QGSs6cnJvqmZmZvdzHb3rwewpl9N/Vxmtoddhf8LoZEQGgmhkRAaCaGREBoJoZEQGgmhkRAaCaGREBoJoZE... | 1 |
science | grade-2 | identify-mammals-birds-fish-reptiles-and-amphibians | true | true | Fish live underwater. They have fins, not limbs. A manta ray is an example of a fish. Select the fish below. | "iVBORw0KGgoAAAANSUhEUgAAAtMAAADMCAYAAACx6y9WAAD0h0lEQVR4nOy9eZwkVZX2/z3n3ojI6uoN6AZsBRGQTUABGRQEBTdwRwFF3HCccdyFUUHn54LOqzOvjvqq6IgbCq4oLjDj4DaDAjoIIu4KgoiIgmy9VGVGxL3n98eJzKqmWRooZUbj8ZNSlRkZceNGZvVzTzznecTMrG1bcs706NGjR48ePXr06NHj9qGqxBiRpmmsJ9I9evTo0aNHjx49etwxqCraE+kePXr06NGjR48ePe44cs7o3T2IHj169OjRo0ePHj3+t6In0z1... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA4IAAADMCAYAAAAmsx3gAAEAAElEQVR4nOz9d7gkV3ntj3/23hU6nJznTI6akWaUhYQSSoDIQQFkGZAw9jUgDNKFC7YvYDA/8L3YhmsMmGiwwBgLC4lgjACBhCQUUZZGo9HkdPI5HSvs8P2junvOKI7QEPyj1/P0M326q6t27a7qqVXvetcSzjmntcZaSxtttNFGG2200UYbbbTxzJBS4nked5bgsCJ0qt/2iNpo48lRNvBIFfYm0OvBqT3Z67JNAttoo4022mijjTbaaOPZwVqL1rpNAtv4nUe... | 0 |
math | grade-2 | compare-vertices-edges-and-faces | true | false |
Which figure has more faces? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAIAAAACACAYAAADDPmHLAAAJqklEQVR4nO2dXWxUaR2Hn+mUAgML3cpnocMWVDQR21RY1ixgYrIIa8guYS8UtpFVvDHGpKaagCHBhJJoUoPxTkIw2RUjJQYkaswaY0wICy4wRbZpLdOF0goEAmWgY1umc7wYTvff75nOec/7no/nrnM6Zw6c5/97fxxmzkQsy7LuDsGNNDwZhoxFiI8pjcALUfhMDJaWQeTuoGVdSuk+rBAdbFwApZ3p3A/Ly2DtvJwdIf7lyTB09MOdIfhPGkpSmdyG8OQHgxe... | 1 |
math | grade-2 | match-digital-clocks-and-times | true | false | Which clock shows one forty-five? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMIAAADICAYAAAC6ej5XAAAMcklEQVR4nO3dXWxUZR7H8e/0hb4dkQSFIRHEdHY1GtMhUTRpq1emmLh7QVF3uRBNdvcCvPAllpsFQ+uFkKzuxUIieKGrQIK0F7tedFhhXaWJYjCtURGdYZOiceqiaDnTdvp29mJoaQ/0ZWbOOc8w8/vc0KYz5/xLz+88z3nOM88JOY7jJEchPgSXJmDcQaToVYTghnL4VS2sXAKhZNpxTg2aLkvEnPuWQsU3Q5lvVi2B2+syKREpdpcm4GwKvh+Fr4egbHA88wO... | 2 |
math | grade-3 | reading-schedules | false | true | Look at the following schedule: Which class ends at 12:35 P.M.? | "iVBORw0KGgoAAAANSUhEUgAAAToAAAD3CAYAAACNQ5iCAACRLUlEQVR4nOydd1gUV9vG76UrXZpIk6aAGCmiYEGBWFBQVEAUu4nYIrYYMZrYokSNJRiVCH42BKSIvcQC9gKKimKhCGIHQen1+f4gOy/D7sKCLSHzu665dM6cOeXZmWdO49y8nX52BA4ODo4WjBQADBo3+wsXg4ODg+PTIfGlC8DBwcHxqeEcHQcHR4uHc3QcHBwtHs7RcXBwtHg4R8fBwdHi4RwdBwdHi4dzdJ+ZU5du4auhM/H92h1fuigfRGbOSwSs34WA9bvwrrD... | [
"Fourth Grade Choir",
"Sixth Grade Choir",
"Introduction to Jazz class",
"Reading Music class"
] | null | 0 |
math | grade-6 | identify-polyhedra | false | true | Is this figure a polyhedron? | "iVBORw0KGgoAAAANSUhEUgAAAGQAAABkCAYAAABw4pVUAAAIvklEQVR4nO2dW3AT1xmAP9vyRUhmBW06wQmWIIBpipwl0DiAwcpDX7h0mPahjZmpTacDcfoAbw15sZg+EB4Y7IfC0E7Hfgj0OhmTxDx1hnUxUBJTLxah2OEiG4/jhNuuZWPJuvXBSNhcHNLs2sf0fDM7o13t/mfPfjp7jnZ39s9Jp9NpJMKQO9M7IJmMFCIYUohgOGZ6B55EOBymt7cXXdcxDAPDMNB1Pfu9pmlTbh8IBLKfVVXF4/Hg8XhQVRWv14vP57Nlv78tOSJ... | [
"no",
"yes"
] | null | 0 |
math | grade-1 | read-a-calendar-ii | false | true | What date is 1 day before July 27? | "iVBORw0KGgoAAAANSUhEUgAAAssAAAGvCAYAAACthZgKAABZaElEQVR4nO3df3yN9f/H8efOZn7FmP3y2xhGrZmRH7NWomGk5OMTn0ohFKqPIp+V0rfkg+pT6lP6PZQfIW1IY3w2tlgY81sYjeY3kxlmzvn+oZ2s7eKMnZ1tHvfbzQ3nus6113ntOtd5nut6X9flZLFYLDH7E/Xjr+t0MOuYAAAAcPPq3+albg3b6wHfTo4uBTfBKTptjSXt7G/6R4uucq1QQRZZHF0TAABAmeYkJ+VcuqRvdqyQb7U66t041NEl4QaZfvx1nQa0vF8... | [
"July 25",
"July 26"
] | null | 1 |
technology | grade | photo | false | true | What type of video game console do you see here? | "iVBORw0KGgoAAAANSUhEUgAAAV4AAADXCAYAAABS4zm+AAEAAElEQVR4nOy9d7xtZ1Xu/51l9b73Wrv309NOKgQMhC6I7SIoCqKCinKVe7HeqxdUFL32+7PAVUAivSZAekJIIQnpOf2cfc7uva7e1yy/P971vnvunZ0ELyqCe3w++WSfVeaaa645nzneZzzjGZrrui57sRffoXAcB13Xd/33zue8IU9bTdP+7XdyL/biXzm0PeDdi+90uK6L67rPAFnXdbcBq3ydpml7gLsX39WxB7x78R8mHMd5BqjuPD29z9m2jWEY/277txd78a8... | [
"Microsoft Xbox One",
"Magnavox Odyssey 2",
"Sony PlayStation Portable",
"Atari 5200"
] | null | 1 |
math | grade-1 | read-a-calendar-ii | false | true | What date is 6 days after April 24? | "iVBORw0KGgoAAAANSUhEUgAAAssAAAF2CAYAAACYtNXtAABVMUlEQVR4nO3deXhUZZ7//XdViuwb2dkJBAhgiBBpZJNpREFxl3FGxhmnhVa6tX/2YKN2ul36UWQU7elGZ8QZF0RbUWCUAI0gOAlLA7KGLWBCgCSE7AtJKnvV80dIQUwOVCBJJeHzui4uoM6pyre+OXXqU/e5zymT3W63l++rpPxQJXWF9YiIiIjItbMEu+E7ygvfOC9XlyLXwFS212qvy6/Dd7wvJjcT2F1dkoiIiEgXZwJ7vZ2yv5VjCXPDL87b1RXJVTKXH6rE92Z... | [
"April 29",
"April 30"
] | null | 1 |
science | grade-3 | use-data-to-describe-world-climates | false | true | Which statement best describes the climate of Riyadh? Hint: Summers in the Northern Hemisphere occur in June, July, and August. Winters in the Northern Hemisphere occur in December, January, and February. Riyadh, Saudi Arabia, is a city in Asia. It is located in the Northern Hemisphere. It has a subtropical desert clim... | "iVBORw0KGgoAAAANSUhEUgAAAtgAAALOCAYAAACTXGSDAAD/20lEQVR4nOzdeVxVdf7H8ddl3/dNZFdEcWFRAcHdNAv3JXOq0bappn41Tc3UWDM1NTk1TTXTMkvTYntpqSkuueNSIiqIKCigCKKC7DuXe+/39wdyFcXEBC7a5/l4WNxzz73nfe8999zP/d7v93s0SimFEEIIIYQQolOYmTqAEEIIIYQQNxIpsK8gOTkZjUaDRqMhOjra1HHEz9CSJUvQaDRERkZe8315eHgY9+fWf2ZmZnh5efHLX/6SwsJC47r5+fnGdSorK69521f... | [
"Winters have much more precipitation than summers.",
"Summers have lower temperatures than winters."
] | null | 0 |
math | grade-4 | classify-triangles | false | true | What kind of triangle is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACwCAYAAAA16xkbAAAYTUlEQVR4nO3de1yUdd7G8WscEBkQUWRQ0gHE8zHNw5rao5uaYZlpVqumWYZmppWtBO5qq5mtdhI11zbrsTVdc61NXUk3N9eyNDxQmtWuZh4QAkURT4RyP3/4wKZrIcx9zzDM5/1X4jD31/+u7tf3+v1shmEYAgAAAGCKat4eAAAAAKhKCNgAAACAiQjYAAAAgIkI2AAAAICJCNgAAACAiQjYAAAAgIkI2AAAAICJCNgAAACAiQjYAAAAgIkI2AAAAICJCNgAAACAiTw... | [
"right",
"acute",
"obtuse"
] | null | 1 |
math | grade-8 | nets-of-three-dimensional-figures | true | true | Which net will make this figure? | "iVBORw0KGgoAAAANSUhEUgAAAGQAAABkCAYAAABw4pVUAAAmG0lEQVR4nNV9aZhdZZXuu75h733OqaoQCJmoVCokkSTYKuGKLSB2ZDAJYYjMSCA0oKCCKGr72LR69dq3H2+rFxTldtt009L6qK1PGMLoAOIABFrt1oDB5jE4hEAGIFNVUmd/98da6/u+Uwljhkq2Fid15v29e73vetdaexeFEAL28e21h/8PPLbiNxjasGGkv8pOb2akv8DObhd+6MP49X88gvbGjWhMPGikv87Ob2Ef3k74zN8GAB0/048/fqS/1k5tFMK+SVmbtm7... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUkAAADKCAYAAAAo2bJqAABHhklEQVR4nO2deXxV5Z3/P8/znHPully2LCQmGGRTXEAd4acwVQQtsrSCC6Ks1talVRAG6KtTsLXD0v7agVaqzpBW6HSmpE7nhwtKpIvOtB2itZsYF2qFaEFy2UzIcknOOb8/nuWcGzCE5N6cm+R5z6Q33Htz7pMb88n3+3w/3+9DALjQZA2u6+KjU8BfGoF6G2jVPx2NplsxCJDLgBFRoNACCLRIZhUfJV28Whf0KjQaDQCMjwNG0IvQpLKvkd8WWcCoGP+LptF... | 1 |
math | grade-8 | front-side-and-top-view | true | true | If you look at this object from the side, what will you see? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAGYCAYAAAB4Y5X0AABwwElEQVR4nO3de0CVdbo2/gs5JQcX5RlHDjlKynBwK+xtKUKj6H5FpTLrZyC4c2pUTMlDTYwCNTozimGemBwdUBwrNUGMJjUDz0q6XcgmwXBY4glSc8lBBYH1+2P5PAEiclhrPet5uD7/vLI4rJup3Xt/v97PfVnodDodiIiIiIjIILpIXQARERERkZKwwSYiIiIiMiA22EREREREBsQGm4iIiIjIgNhgK5BarUZQUBDc3d2xZcsWqcshIiIi6lQsuEVEObRaLaKjo5G... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA6AAAAGYCAYAAABcc49YAAB//klEQVR4nO3de1zUBb4//hdySy7OmKKCCUOukrJcPAp7LEVoFT1fQamM+hkIHt1aFVPyUhurQK3urmKYNzZXFxRXS00Io/WSDd6V9DjIkmC6DHiD0By5qCAwvz/GmRQBuczMZz7D6/l47KO4zpuTdnr5fn/ebwu1Wq0GERERERHphYWFhdAlEJmsbkIXQERERERERF0DAygREREREREZBQMoERERERERGQUDKBERERERERkFA6gZUigUCAoKgru7O7Zs2SJ0OUR... | 0 |
math | grade-2 | which-picture-shows-more-up-to-5-dollars | true | false |
Which is more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAlYAAAEvCAYAAACHYI+LAAEAAElEQVR4nOz9PWwkybbnCf5uo2dgLixgBswA7lqa1k7NYyVG7wgZT4urkS2RV6q4GlNLKoPklR5zRlhSK2qXJV1SGlKr0F6ksOgIacO19JbWSlp37M7ADFjBDTuDfSscc48gK7Nu3X71+vVLxAEyw+lubmZun8fO+Z9zfvfp//W//+P6f/s/APgd/wj8jgMd6EAHOtCBDnSgA/0a+kf+kd/BP8L/5b/7t/zbzf/2f+yxUgem6kAHOtCBDnSgAx3o19PvhHv6Hfz... | 0 |
math | grade-5 | angles-of-90-180-270-and-360-degrees | false | true | What fraction of a turn is this angle? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABfCAYAAADS+bBMAAAL6UlEQVR4nO3de1SUdR7H8Q9I6Gp0YBMFO5skYbqSsuh6SvcobTcvqegqipmSeEHTxNQKzdQ10y1NUFO8oyaiXbxiZVakR7fjpuuFtpQgtBOY6IEcQBmT2T9wKG5ecmaeGXi//hwenucz/334nYfv181isVgEAAAAwCbcjQ5wq0ymAqMjAAAAADVyqYKdvDlem7bEGx0DAAAAqJFLFGyTqUDjJnbTwkUT5e8XYHQcAAAAoEYeRge4EZOpQNExnfV99v8kSY3v9jc4EQA... | [
"1/2",
"1/4",
"1 full turn",
"3/4"
] | null | 3 |
science | grade-3 | animal-adaptations-skins-and-body-coverings | true | true | Arctic foxes live in the cold Arctic tundra. The Arctic fox is adapted to be camouflaged in the snow. Which animal is also adapted to be camouflaged in the snow? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEKCAYAAABnkCFsAAEAAElEQVR4nOzdd7xmVX3o/8/aa/f99FPnTGGYRi9SLKAollA0FmyILZZI9HKjMWqMN+ZqTNRolBgSjDGaIGrkYlTE4FWRQMSGAqIUYQSmz+nnqbuvtX5/HOZcyqCjjkT9Pe/Xa16vOc9z1trrrL3X83z3alsYY0xZlmitGRoaGhoaGhoaGhr6zWRZFrZtI4qiMMPgfmhoaGhoaGhoaOg3n2VZWMPgfmhoaGhoaGhoaOi3g9Ya67+7EENDQ0NDQ0NDQ0NDB88wwB8aGho... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA88AAAEKCAYAAAAsMWftAAEAAElEQVR4nOz9edRmV1XngX/2Ge7wDO9Ub40ZyEwCCYEAoogIaivQGGUe1QZtXdJZioqIbWtD40DLT2jEjo0KdgigNDaI0vwaxTQ0EZmSQDMZMECSqqSmd3ymO5xz9u+PW1VmqEBBAgi/57NWrVXPcM89zzn33Pfus/f+blFVDSGQUmLOnDlz5syZM2fOnDnfmhhjcM4hIt/srsyZ822JmRvOc+bMmTNnzpw5c+Z865NSIoTwze7GnDnftpi54Txnzpw5c+bMmTN... | 0 |
math | grade-7 | identify-alternate-interior-and-alternate-exterior-angles | false | true | \line{MO} and \line{PR} are parallel lines. Which angles are alternate exterior angles? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD2CAYAAADs6vBqAAAiZUlEQVR4nO3de3BU9f3/8deSsCEQTATREJdJAC+pMRIIGORiAkW5qSTUCo6VW2slSCU69QL9jsRxuLVOWUZFrBbwHnSUxXoBmmoCmhJgQ0ICCtSwaIaiCIa7BMj+/rDZn5EkXHJ2z+6e52PGGdnPsue1n79eHt+fPTav1+uVBdXW1kqS4uLiTM0Rqtg/AACAprUxO4BZli9fruXLl5sdI2SxfwAAAE2zWfUOdlJSkmw2m3bv3m12lJDE/gEAADTNknewXS6X9uzZI4/... | [
"\\angle{ONL} and \\angle{PQS}",
"\\angle{ONL} and \\angle{MNL}",
"\\angle{ONL} and \\angle{RQS}",
"\\angle{ONL} and \\angle{RQN}"
] | null | 0 |
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? | "iVBORw0KGgoAAAANSUhEUgAAAQQAAACgCAYAAADq8hJGAAAaXUlEQVR4nO3deXgU953n8XdV32qdgCQQEiCEEJeBmBAHjI2xseNjfG2u8cTJrJ1sJomfmWw2ySQ72cxmJs7mGceZeSbx2juZSZwEJ8Eex/EB+ADb3NiADUYGcQih+76lvruq9o+SSgg1QrIlVUv6vp6Hh0dFd6voX/Wnfr9v/bp+imEYBkIIAah274AQInlIIAghLBIIQgiLBIIQwiKBIISwSCAIISwSCEIIiwSCEMIigSCEsEggCCEsEghCCIsEghDCIoEghLBIIAg... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAiAAAAC4CAYAAADaI1cbAAAmZklEQVR4nO3deXQc5Zku8Keq927t1mZZqyVb3rAdHOPYmMVgCMuYZRJCmEAyQJJJwsnk5gaSzGQykwkkuSFk7p0scJOZbEASIITVNottvNvgBe+WLUuy9n2Xeu+qmj+q1bKkltyyparq1vM7h6PjltT66K/06K2v3vpaAKCAiAiAoihoDQBVHmBAAkJMByKaImYBSDYB85xAjhUQwAKEiMJa/QoO9Os9CiJKdKtSALPegyAi4zjnUT/OtgLlLvVshYhoKgxIwFk... | 1 |
science | grade-4 | identify-living-and-nonliving-things | true | false | Select the living thing. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK8AAADMCAYAAAAF8vOBAACiLklEQVR4nOz9WZAsaXbfif3Ot7h7LJl5t9qXbqA37MPGTgJcJZKiQMyiIU3bmJ5okkkm2ZjMxvQs05M0kvFBY3rSLHqSRpSNRhoJZiPJMIMhCWInCKAXdKO7qrq6u7a75RKLu3+bHs7nEZH35r11q24VqkH0V3YrMiMzI8Ldj5/vnP/5n/+R3zkr5QsLOLJ8f31/fU+uiwRfW8PbI1x38IvX9HnzfcP9/vpeX0cWvrDQr1dp/7z5vuF+f/1ZWJOdhrJ/zl31i//... | 2 |
math | grade-3 | identify-unit-fractions-on-number-lines | false | true | What fraction does the number line show?
0
1 | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAAoCAYAAADE3o01AAADRUlEQVR4nO3dMUscaRwG8P+KQkRIMIG4ikKwsAtCrrgy2sQiV2klWFx1YGmj2JjdwiJ1IPgFTCVWp6dpslfegcJ+AglBRgtB3CKQBOeqWxA8V+4G39nL71cNzFs8zR+eeedlprK5uZlXKpWYn58PoDzevXsXZhPKx2wCnfR++vQpdQbgGmYTyslsAp30pA4AAAD/Jwo2lEzjJIvp/Z2oDz2M+tDDmN7ficZJljoWAHBLCjaUSK15GNPvd6JxmsXnnkp87qlE4zSL6fc... | [
"1/2",
"1/4",
"1/3",
"1/5"
] | null | 0 |
math | grade-7 | identify-complementary-supplementary-vertical-and-adjacent-angles | false | true | Which angle is vertical to \angle{2}? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEACAYAAACJVgHaAAAodUlEQVR4nO3dcVDU953/8RdrCGyyNxDN4hpMRYypVpEFI1C8ixiT36W9serEscacoj2jNbk00rMxyZ0jxNapnaTBS9OkxplgTAwx5ora653jMGJPOdAIizESvRbXWswCNa7tmhUpy+8PyiYo4gIL3/3C8zHjxMCyvJkkM698fL8+36i2trY2YcC53W4lJSUZPQYAAADCzGL0AENVWVmZ8vPzjR4DAAAAYUbANojL5VJBQYF+9atfGT0KAAAAwiiKFRFj3HPPPfrd736... | [
"\\angle{6}",
"\\angle{1}",
"\\angle{4}",
"\\angle{5}"
] | null | 3 |
math | grade-6 | identify-equivalent-expressions-using-strip-models | false | true | This model represents the expression 5+3t. Which expression is equivalent to 5+3t? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAA+CAYAAAARUWyzAAAHS0lEQVR4nO3dX2xT1wHH8V+u7diJ8weIYxLybyQTDW4IFAFpKd0qypSKtTC69mlSt6nTpE1apXWrNiHtpdtaJnWaxqT2YU+d2KpuCBREpW5ZQZR2rC0dgmZJCIRAQkfiJJQ4tuM4tu8eUjys0imbrnNz8ffz5HPOvdLvyf7p+Fy7yDRNU5KSoylNHJxSfCChdMwU4FSlLcVq2BvMjkeeDys+mLQxEQCncfmL5G8tUeDxCnmCbrvjAHAYtyTNDiX10a8nVL3er6ptlTJ... | [
"3t+5",
"8t",
"9t",
"8+t"
] | null | 0 |
science | grade-3 | natural-resources | true | false | Which of these pictures shows a natural resource? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAV4AAAElCAYAAACszooYAAEAAElEQVR4nOz9W5MkyZLfif3UzNwjIrMufZtzZgYDYIAXUJbLJYVCgi/7xflKoVBIWYGQQqzsCrDAYAZnzsw53V1VWXmLcLeL8sHMPTw83T08MrOqe5ZHu6Mi0i92NzXVv6qpyf/wWfXfXMNby5/oT/Qn+hP9iV6R7iL8hwf4xxa+dfDff5Ovmz8x3T/Rn+hP9Cf6MvTWwr+5zr/v4/G6+RPT/RP9if5Ef6IvRx2P9Xq85qYe/L/+9Dek8ltETj4AIQRU9cl73TN... | 1 |
math | grade-1 | addition-sentences-using-number-lines-sums-up-to-20 | false | true | Which addition sentence does this model show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABhCAYAAADsidaRAAAXT0lEQVR4nO3de1BU590H8O9ykyB3BZEUQeiAlxDwEhFNophqYm5qolQzmUgaY2rasdWOY4zpRCOtpmlSfWMmE+tMqDU43grGpLz6jgnglKsIGnXUqFkEF4wLLmG5r+z7x+lZWC7CwmHPhe9nhmE5S/D3DbDPj+c85zk6q9VqBRERERERScJF7gKIiIiIiLSEDfYw9clFwHMv8Oz/yl3J4DCHsjCHsjAHEZE83OQugKRX3QiM8gTce/jzydQKvJYN/N8twMPV2ZU5hjm... | [
"0+7=7",
"1+9=10",
"0+9=9",
"1+7=8"
] | null | 3 |
math | kindergarten | rectangles | true | false | Which shape is a rectangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAEvklEQVR4nO3dv4vbdRzH8VdyP4baKjhYnJy0s4N27x9QikIXB7t17NJJKFfsona5QQsOdpAKBVHEIk4tyB1XrpQeiEdpo8KhPe/6g9LLNSHXpB+HL18ttl4vyef7/n5+PB/ThfDN9zs8SS55BdJwzrm1LenXjtQeSH0nYGyTDWnPhPT6LmnvtNRY6zl3ZaPuy0LK9r8oTbY6xY1Xp6V9LxQVAuNqD6QbD6W/tqSbHam50S/uIDL4tGeiaEqSNgdSc/DEHYBPZVO... | 1 |
math | grade-2 | interpret-bar-graphs-ii | false | true | Luther looked in the backyard shed and found some rakes, ladders, wheelbarrows, and watering cans. He made a bar graph of the items he found: Did he find more watering cans or wheelbarrows? | "iVBORw0KGgoAAAANSUhEUgAAAmwAAAFfCAYAAADzk5C7AAB0qklEQVR4nO3dd3hUdfr38fcpU1MmFZLQQq/SQhMEQUQFddVVV7Cii+Ba1rK6uvbV/T32tezaXUVXXDtYVhQVARVECb2o9BAIIT2TZDIzpzx/DASy1ASSGeB+XReXyZyZc+4zpnzyrYpt2zZCCCGEECJmqdEuQAghhBBCHJgENiGEEEKIGCeBTQghhBAixklgE0IIIYSIcRLYhBBCCCFinAQ2IYQQQogYJ4FNCCGEECLGSWATQgghhIhxEtiEEEIIIWKcBDYhhBBCiBg... | [
" watering cans",
" wheelbarrows"
] | null | 0 |
math | kindergarten | ordinal-numbers-up-to-tenth | false | true | The first picture is a star. Which picture is seventh? first | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABdCAYAAACfMRFHAAAjUUlEQVR4nO3deVxTZ74/8E9CEkggBmRTQAQrooLjUse9lmortV4t9bpwtR272Kmd3teM229m7p15uXQ6v2lnrPb+bqfaKba1vfaqWNuK1WLdWmldxgUVF1wqAiKCSEIMhKy/P46JYU/IyVlyvu/Xa15VODnn8TvffJ/nbM8jczqdThBCCCGEEEJYIee7AYQQQgghhAQTGmATQgghhBDCooANsPVWJ1ILGzD8gBF6Kz2FQgghhBBCpKFbA+wvb1mx+pK504HzoTs2lDU... | [
"rocket",
"star",
"moon"
] | null | 1 |
math | grade-2 | place-value-models-up-to-hundreds | true | false | Which place-value model shows 275? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAWoAAACSCAYAAABsboAjAAAb0UlEQVR4nO3de4xkeXXY8e99v29VP6ZnZndnd2cfsDxCBIlwYhNiYRKjBOI8QIY4OAQLmyQGIsdeLDkmxsHIspGJ5GBZtpcgJZFBsfIwJBZ/OCixkLNLnCgiZl+w86CZnulXPW7VvXXvrVs3f9zq7urqqpphpme7qud8pGZmpy6nTvX0nPrV7/5+56eUZVlez+CbMUQF9EuEEEKcIF2BQIPHXThrgnI9Lctn2iedlhBCiEm+JwT9xbj6j/MmvNKrqrgQQoiTExX... | 0 |
math | grade-3 | read-a-calendar | false | true | What day of the week is August 15? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAF2CAYAAAAbcOzWAABdGklEQVR4nO3de1xUdf7H8RfDXRSQu/cbKmqIl8wUic0sLbOLuZZuu21mZbfd1lZz2a5b5k/tau1m22XNzDR1S9SMUhe8pIb3G5qKiogCiqDcLzO/P5ARAnVQYODwfj4ePtSZw8xnPpyZec/3fM93HCwWi4Vy1h8oYtPBItLOmRERERGRaxfgaeLGzs4M6ups71KkEXAoH/DX7y8k+ayFm69zxtERKkZ/EREREakuBwcoKYH/7SmkVXMTESEu9i5JDM5U/j+bDhUxONQ... | [
"Monday",
"Tuesday"
] | null | 0 |
math | kindergarten | one-more-with-pictures-up-to-10 | true | true | Count the balls in this group. Which group has one more than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABmCAYAAADxjOYpAAB1EklEQVR4nOz9ebBkd3bYd35/v7vf3DPfvlXVqx0FFIBCY+ludJO9kGzNSFzEkWXZFCWPQ55NHMmhsDyUJsITnrEWjz0eWZbsGUsOStTIGpkmmyIpNqleSPaCrbEXCrVvb38v98y73/v7zR9ZgMSwLFIaFNAN3c8/iXp4yOWeQsTJc8/vHKG11pRKpVKpVCqVSqUPhPyo30CpVCqVSqVSqfRxUibYpVKpVCqVSqXSB6hMsEulUqlUKpVKpQ9QmWCXSqVSqVQqlUofoDL... | null | [
"iVBORw0KGgoAAAANSUhEUgAABIYAAAB+CAYAAABRYRpnAADopElEQVR4nOz9Z5Rl2XXYef7P9fc+b+KFj8iIzIz0WVVZDqYKlgbqGdGIM+ppDUVqTff06pklyoympSY5bqlHlNjdajXFJbFnJGpRIodiUxQBCJRAkKgCCBRRDiib3kWGt8+76898uIEiJdEUJWRlAnV+X14mEPXey3tiR+y73zl7C0CiKIqiKIqiKMq3hJSS3RBuj6CfQKyybUVRFOUhYggo6HDSg0kLBKowpCiKoiiKoijfMruB5JXeg34XiqIoivLHe7oIxoN... | 1 |
math | grade-8 | front-side-and-top-view | true | true | If you look at this object from the top, what will you see? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEUCAYAAAAREUFXAABl8klEQVR4nO3dfVyUZdo//g9iWIkM2leUe9VBXbU0EPttpe0Q+F0fCiyxFW1BBbQHoUxIKNnbAtRd6BaF1RSsDTCEzUghHzDTbkbBh2q/8iTmauqMWoJtNoNY4ILz+2O8rngSgblmrpnx8/5r5Tbm5LZ97XEeHufxcTAYDAYQEREREZEkesl9ACIiIiIie8ICm4iIiIhIQiywiYiIiIgkxAKbiIiIiEhCLLDJZDqdDuHh4XBwcEBiYiJ0Op3cRyIiIiKSjQO3iJAp/va... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA/AAAAEUCAYAAACMFd2zAAB8EklEQVR4nO3de1zUdd7//wfhQqUyVFcevqsO6qqtBmK/bdMuEPxuaokVllqXmMcOSpmw6SZ71YLVLnZ5gKxEa0M84GqkUipm2iUKmtV+k4N20MwZtRXczWYUS1xwfn/gTOApZGb4MPi8327XrWUunHmR5a3n+/36vF5+DofDgYiIiIiIeISfn5/RJYhIM3WN0QWIiIiIiIiIyM9TgBcRERERERHxAQrwIiIiIiIiIj5AAV5ERERERETEByjAi9tsNhvjx4/Hz8+... | 1 |
math | grade-2 | read-a-thermometer | false | true | What is the temperature? | "iVBORw0KGgoAAAANSUhEUgAAALkAAAEOCAYAAADVFbYlAAASn0lEQVR4nO3dT2wTWZ4H8K/DnoCLc2G2aS1SZSLltCQq01o4cCq3RMRhNagsoc2eaFUYteawJ3u1e0JIWz6gPaBmcGmPrJDsYcQBgcDvxGFoLS7azIVomFhi1KyWS0paQR9Wot8enHqp8p/EqVScl5fvR7IUlyv2S+vbxavn93uvIKWUIDLYX+X1Rmtra3j8+DGeP3+ObreLH3/8Ub325ZdfYnFxERcvXsTy8jIWFhby+liiHRXyuJLfvXsXQRDghx9+2PHcpaUleJ6... | [
"85°F",
"80°F",
"75°F",
"90°F"
] | null | 3 |
math | kindergarten | are-there-enough | false | true | Are there enough leaves for every bug? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACgCAYAAAA2PRuAAAAlGUlEQVR4nO3dd3zb933n8dcPGyAA7ikucWhYw5KVem/HTuoRdznppUmTXJImTdNer71c2usjl15v9JFLck1bp006r0l6SRM7jlc9Eo863rYka9jaIiluEiRBkNjA73d/0JIjW/IQfiQx3s/Hww9LEPHD9wX+iMcH4A8/GJZlWYiIiIiIiC0cq70AEREREZFyogFbRERERMRGGrBFRERERGykAVtERERExEYasEVEREREbKQBW0RERETERhqwRURERERspAFbRERERMR... | [
"no",
"yes"
] | null | 1 |
math | precalculus | identify-graphs-of-continuous-functions | false | true | Is the function f(x) continuous? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH3CAYAAACBwSh7AAB46ElEQVR4nO3de3xT9f0/8FfuSZukLS29WGixctFii6CARao4UJlsKjjmZV5AVHBeNvfdfnN+N/edY3z9zrlNpw5UBNRNJ5PJFAvqqICtCFQotFysRUpLaUvatLnnJDnn9wdrR7mm8DlN2r6ej4ePh01PXnmTJifv88nnfI5GURQFREREREQkhDbWBRARERER9SdssImIiIiIBGKDTUREREQkEBtsogFk/fr1GDZsGGbMmBHrUoiIiPotDU9yJBo4pk2bhjvvvBN3331... | [
"yes",
"no"
] | null | 0 |
math | grade-5 | reflection-rotation-and-translation | false | true | How has this figure been transformed? It has been... | "iVBORw0KGgoAAAANSUhEUgAAAPoAAABkCAYAAACvgC0OAAAE1klEQVR4nO3cwU8UZxzG8QcEF5tCFmpEEjeBamzSHggxMT2U7OCpSdO7IdHsXlrP9R9Y/ov2tBt7wJMhemkPhYBN2h6MG081KQdK0kpjZYuNsKB9e7BIzQ7sOjuw78zv+0m87L77zDA7jwzs8OvK5/MuCALFYXFxUc45kRc9b2FhIZasTguCwOvjbC2vJwgClUqlWAJnZmbknCOvjby04LzyK687liQAXqPogAEUHTCAogMGUHTAAIoOGEDRAQMoOmAARQcMoOiAARQ... | [
"translated",
"reflected",
"rotated"
] | null | 2 |
math | grade-5 | identify-rhombuses | false | true | Is this quadrilateral a rhombus? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEPCAYAAAB4ALMPAAA0MUlEQVR4nO3deXxU9f3v8fdMhklIAgwkIYEQwpoEwhbADQQiKlBARKnseqltrbT1V0W07e/23l8fP68/rCB2tVgVd3aVRRRXFDcUSMKSkIQ1CXsCJDAkIUxm7h/Qw5qwzczJzLyef31Oz2TO21oefedwvt9j8Xg8HgEAAADwCqvZAQAAAIBgQsEGAAAAvIiCDQAAAHgRBRsAAADwIgo2AAAA4EUUbAAAAMCLKNgAAACAF1Gwgct4KXeZus6bpDuW/sbsKAAAIABYeNE... | [
"yes",
"no"
] | null | 0 |
math | grade-4 | what-decimal-number-is-illustrated | false | true | What decimal number is illustrated? | "iVBORw0KGgoAAAANSUhEUgAAAKQAAACkCAYAAAAZtYVBAAACIUlEQVR4nO3YwU3DMBiAUQd1qs7BCAzQDVA36ACMwBxdy5yQOCQRXJoP9b2r5ciHz7+sLHPOOSDi5egDwE+CJEWQpAiSFEGSctpbPN+WR52DJ3O/rP/c2ZyQYuQIuxNyjDHeXt///NGPz+u/3bt1c/d8X157f793izckKYIkRZCkCJIUQZIiSFIESYogSREkKYIkRZCkCJIUQZIiSFIESYogSREkKYIkRZCkCJIUQZIiSFIESYogSREkKYIkRZCkCJIUQZIiSFIESYo... | [
"0.4",
"0.6",
"0.7",
"0.5"
] | null | 0 |
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? | "iVBORw0KGgoAAAANSUhEUgAAAQQAAACgCAYAAADq8hJGAAAYC0lEQVR4nO3deXgdV3nH8e+ZmbtJurIka7Fsy3YWL7Edm0AWh4RCtpYkLIFQCqUPtKW09KEtD09poaVtQhv6PCUsbaFQ2kJ4QkMhkIaQgKFNIBRCIF4SJ3YsO7LjVda+X91tZk7/mLmj7dq+tiXdudL7+cfJ1ZXucs785sw7Z+YorbVGCCEAo9xvQAgRHhIIQoiABIIQIiCBIIQISCAIIQISCEKIgASCECIggSCECEggCCECEghCiIAEghAiIIEghAhIIAghAhIIQoi... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAiAAAAC4CAYAAADaI1cbAAAi1UlEQVR4nO3de3xcZ33n8c9zzsxoRhdbsiXLiuNLLnYcO8QEcoNASwJhITQptwVatrALtEtflPLitdwWaKFtoAsJXbpQ2JYCfUEp4bYQHOKEJpACSdokTuLEieVrLN8lS7Lucz3n2T/OjCTLY3nsSGfOjL7vf5SMR/LRPM98/TvP+Z1nDGAREQGstRzLwZ4JGPWgoHQQkTkSM9DiwtpG6EyAQQWIiBQdy1oeGan2UYhIvbtmEcSqfRAiEh27J4KvXQm4pCk4WxE... | 1 |
math | grade-8 | identify-complementary-supplementary-vertical-adjacent-and-congruent-angles | false | true | Which angle is vertical to \angle{4}? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADdCAYAAACBgQWfAAAnAUlEQVR4nO3df1SVBZ7H8Y+oiOIMSO3qMBI47OjaRpfmONQ5+IM5W3pQSzRLTHe4rhqIopg/wh8YAoqaP0MMU1c4mT82TcrUWWtORrJndD3lXVqNjMAwRre6wThXDeK6f7TcUQQFvJcH7n2//srHe5/ne//onE/fPs/zdLpx48YNAQAAAHAKL6MHaI2YmBiVl5cbPQYAAABwmw4ZsKuqqmQymbRw4UKjRwEAAABu0SEDdkhIiP7yl7/o5Zdf1pAhQ3TmzBmjRwIAAAA... | [
"\\angle{5}",
"\\angle{2}",
"\\angle{1}",
"\\angle{3}"
] | null | 2 |
science | grade-2 | identify-solids-liquids-and-gases | true | false | Select the liquid. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKUAAADCCAYAAAAo2gI4AABRD0lEQVR4nO29eaws2X3f9znn1NJ73/Xt82aGw3kzmiFnhpoZihQsktZiWZYtCqESGJGBwJAS/xEotB1bMJQgCmBFiRxEECRFCmQpghwHiWALliXQkUVJpCgumhEpUlyGHHL2ect9d++9u5bzyx9Vp7q6371v3pu33Dtkf4FCdVdXV52q+tZvO7/zO+ovOiIP1aFpWGCBu4peCs8P4EoEyx78taVsu14QcoGjQtPAQ/Xscz+dbtcLQi5wlHD8i2W6TR9NUxZY4HA... | 1 |
math | grade-6 | which-is-the-better-coupon | true | false | Shane would like to buy a set of golf clubs with an original price of $228. Which coupon should he use? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAXcAAAClCAYAAACnQb1uAAAzP0lEQVR4nO2dd3gc1bn/PzOzXV2yLMmyJNtyN8bYxiZgTOglBHAIxCFAILkmXHJzIQECBEISSCWQXgi5KQQChJbQAj8MMcWYYnAD925JWFbv22fO74+VVlqr7c7uSqvV+TwPj/HszJkz69nvvPOetyhCCHHED3vd0KFDUCCRSCSSMYZFgSwNZrigyAbKEZ8Q69tHe1oSiUQiSRQnZINljzv0lxIbzMoIKb9EIpFIxhYdOuzqglo/7HaD2h4MfSCFXSKRSMYuWVp... | 1 |
math | kindergarten | addition-sentences-up-to-10-which-model-matches | true | false | Which shows 6+2=8? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAagAAABKCAYAAADuScD9AAANb0lEQVR4nO3dW4xcdQHH8d+5zWV3plvZtku7W9gubS3XVkpT4QFpUprwwAOaGkl40sRLBBPU+MibCUQDCRrjmyYYAY0+gJdQQVATQUi9IIq2TXdjL+x2O9DduZ7r34ezs7cOM3Nmz//Mfw6/T9Js25k553xhev5z5tw0IYSYdYAzNaDsA54AERFR4kwNKBrAniFgLANos7YQby72e7GIiIhWHN4EmKdr4R+2Z4CPD4ejFxERUdLKPvDfKvCeA5yqAfqiFz7AwYm... | 0 |
science | grade-7 | predict-heat-flow-and-temperature-changes | 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 | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAC4CAYAAAAxDlOsAAAUkklEQVR4nO3deXAc5Z3G8W/PaEYzOmzL9yXbgLF82zhg7ss4BAImBBLYZDebqlxV2S02W0mRUIEUFCGpBNit2iRkqzYHuyEXhECwMYZgYgd8gI0PGRvf9yH50GFJo7mn949Xh2UdHjGj7pb0fKpco+np6Xnlnnmm+/e+r9qybduuTsC+ZmhMQ8pGRCQvCiwo9cOlRTAmCFZ13LY3NLjdLBEZ6K4cAgV7m82dcUGoKDZpJCKSD41p2B2BqgTsaQZfQ8o8oLARkXw... | 2 |
math | grade-2 | how-much-more-to-make-a-dollar | true | true | You have these coins:Which coins do you need to make a dollar? | "iVBORw0KGgoAAAANSUhEUgAAAUEAAACMCAYAAADiDxvvAACo1klEQVR4nOy9Z3xcZ5n3/z1neh9pRr0XS+6yLfcaO051OiEhgWACbPLQdmGpf2AfllCWZdllabvAQkJCypLeHffEvcuWZPXepVGbXk77vxjPbPzAQiqQZL5v4o+UOTP3rTPXue6r/C5B0zSNDBkyZHiPIv6lP0CGDBky/CXJGMEMGTK8p8kYwQwZMrynyRjBDBkyvKfR/6U/wHsJWZaJx+NMTU2RSCSYmZkhGAxSXFzM6Ogo2dnZ+Hw+vF4vZrMZl8uFy+XCaDQiiu/... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA5kAAACMCAYAAAD2pW2TAAEAAElEQVR4nOydd3hc5ZX/P3d6n5FmpFHvlmzLttyL3As2YEwPNcRhE2DTe89v08hCyiZL2iaEQEISEkKvxrjh3qtsWb33Opo+c9vvD3kmsMlmKSaQzf08jx+Bpt17fH3n/b7nnO8RVFVV0dDQ0PgnRRCEd/oQNDQ0NDQ0NDT+T6F7pw9AQ0NDQ0NDQ0NDQ0ND4/8OmsjU0NDQ0NDQ0NDQ0NDQuGhoIlNDQ0NDQ0NDQ0NDQ0PjoqGJTA0NDQ0NDQ0NDQ0NDY2LhuG... | 1 |
math | grade-8 | identify-lines-of-best-fit | true | false | Which graph shows the line of best fit for the data? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAWYAAAFtCAYAAAA04cDVAABPXUlEQVR4nO3deXhUdZ7o/3dVJZV9TwgETVgaArhEUcIaFtu0CwIGRDot3cPgZRqfn6N3epnp29frnesdvT09j91qa9vNfRxpxauSJshiaFrZ0oBGNkMTCKEjSQgQstaSpfbz++NkIWwJpM6pSvJ5PU+eVJ06dT6fUzn1qZNvfc/3a1AURalzwd/awe4Fj4IQQggdhRggxgQTIiHVDIY6p6J8ZQt0WkIIIQCmx0LImXb1zigzZEapVVsIIYR+7F443QYXXVDRDka... | 2 |
math | grade-2 | correct-amount-of-change | false | true | You pay 98¢ to buy a plastic bracelet costing 87¢. You receive the following change:Is this the correct amount of change? | "iVBORw0KGgoAAAANSUhEUgAAAlcAAAA/CAYAAADNA+2aAAA180lEQVR4nO3dZ5idZ33v++9TV2/Te9eMei9WsSxbso3BgE3HhBB2KhtCydlXwr7I2UlIOFf2SXJypZ2EnAAJJBCMbXDBXZaLepdGGmmk6Zq+ZvX2rPW082Lk2ZAYItsyDufcnzeSPWWt+9Z68bvu+//8/5Lrui6CIAiCIAjCTSG/3W9AEARBEATh/0tEuBIEQRAEQbiJRLgSBEEQBEG4iUS4EgRBEARBuInUn8WLmEaJQqFAuWxQKhSwKmWKyTkqtouqqnjCMfz+AMF... | [
"no",
"yes"
] | null | 1 |
math | pre-k | count-scattered-shapes-up-to-5 | false | true | How many shapes are there? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEQCAYAAADF3QCRAAAPJ0lEQVR4nO3dPW6UW7aA4YVpYywxABJmQEpA2kIEV7YYR4ckMIMrQULYw2ghO0JWpwROmYETBoDk42Md1w1uV2OMf8pV37d/1n6eARxvadU+36tF/TxYLBaLAAAAUtiqfQAAAGA6Ah8AABIR+AAAkIjABwCARAQ+AAAkIvABACARgQ8AAIkIfAAASETgAwBAIgIfAAASEfgAAJCIwAcAgEQEPgAAJCLwAQAgkb/VPgDQr6/fv8Xrz2/jx/lp7aPc6sn2bnx58ylePn1... | [
"5",
"2",
"1",
"3"
] | null | 0 |
math | precalculus | determine-continuity-using-graphs | false | true | Is f(x) continuous at x=7? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAACEe0lEQVR4nO3de3hb1Zkv/u/WlmTZlh05tmM7F+dCLiWpbQhNICFpoFCgUKAJUGgPpJ1S5tApMO2Z9kynp/R32qaczrS0U6D0yhQCnelAC4UAJg0kJGlSYuIEJ3FSYnJx7MQ3xZIsyZL29feHIidO7MSy9/KW7O/neXiCZe1Xr/eSll4trb2WZJqmCSIiIiIisoTD7gSIiIiIiMYSFthERERERBZigU1EREREZCEW2ETUz8aNGzFjxgzcdNNNAICbb74ZL7300oD3VVU... | [
"yes",
"no"
] | null | 1 |
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