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 | algebra-1 | multiply-two-binomials-using-algebra-tiles | false | true | Which multiplication expression does this area model represent? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADLCAYAAABUDuQZAAAPZ0lEQVR4nO3dXWzdd33H8c85dhLXbtykjanjZG1JSp+AiMbroCodCAhLUQVCaBMgJFRpF0g8qkK7iIDLapu0wZgqqkoV4nFAgamTtmaNSqBdodDFbWibPoSkiSG2m6RNnAc3cXzO2UVGWrdhU9qf+fucvF53/lnR95t/bt766X9Oaq1WqxUAAKCIetULAABAJxHYAABQUPfpDkdGpzNxqPnH3qXtDfbXs/aihaf93ci+TRmf2ll85vLeVVk7sG7ezAQAONvVXv4O9i0... | [
"(x+2)(2x+1)",
"(x+2)(2x+2)",
"(2x+2)(2x+2)",
"(2x+2)(2x+1)"
] | null | 0 |
math | grade-5 | multiply-unit-fractions-by-whole-numbers-using-models | true | false | Which model represents the product 3×
1
3
? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAaAAAACOCAYAAAB359yrAAAX6UlEQVR4nO3db2wU550H8K8xRC60zETXkpxOsOuia1Rhs0bVhTaAsnu8CgXtuqpCUWgxR6Q4oRHLJQTiILxOVDhoki6nkjMVwuZIBE6lYx2cIN2LMg5bFPLGE9t5kWuinXVepHV66iypoc3Z3XsxzHiNvWbXOzPPs/j7kaIkWJp9dr6Mf/PnN89Tk8/n87//Evj4BvDFBDCeBxERkesW1gBfqwX+cTFw3z1Aze//ms+/f130sIiIaD5ZuxRY+Lsb1v/8/T3AA0u... | 1 |
science | grade-2 | compare-properties-of-objects | false | true | Which property do these two objects have in common? Select the better answer. | "iVBORw0KGgoAAAANSUhEUgAAAWwAAADcCAYAAABUIpt4AACXaklEQVR4nOz9ebxk11XeD3/33uecmu58e251t1qzZA22LMkyHuVBtoPtEMwckpC8GJMEM5m8gQAZDHwS4BeCf7xAGOIwhoDNaBCeB9myLEuyNbak7pZ6nvvO99Zwzh7eP9Y+p+petYzBUqt1Xas/1VW3xlNVp579nGc9ay0VQggA3W6XEydOsLi4iLWWYQzj+Y4kSRgbG2Pr1q3U6/Xn9LWG+/8wLrQ41/6vQgih0+nw5JNPsmvXLur1OmmaPs+bOoxhQFEUdLtdDh4... | [
"sour",
"blue"
] | null | 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? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABhdElEQVR4nO39f3yU9Z3v/z8nM5PfgYQEEwgmikgqSFAUFQSFYtVV6yl0Pdgf23Zvbrf21P767Oneeuunn+62x+Ont1u37bfd6nHb7am6x/Pt1lN1VYwUJQoNChIxkKAQI4SEkB+Tn/P7mh/X54+QSAQkA9ebyZDH/XZDmclcz7y4rsw1z7lyzYzLtm1bAAAAAByRle4BAAAAgAsJBRsAAABwEAUbAAAAcBAFG8C4m266Sc8+++z45eeee05XXHGFkslk+oYCACDDULA... | [
"nonlinear",
"linear"
] | null | 1 |
math | grade-7 | bases-of-three-dimensional-figures | false | true | Look at this figure: What is the shape of its base? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADRCAYAAAD2Q8XkAAAp+klEQVR4nO3de3DT95nv8Y8kS5YvEja+yBeBDcaGQknZLelukm65tHtKkk7TzjSbmcLMbpNMW7IDTWcCmSbhUkhidvecg3OSnoWTbCdZ6AyENvGlTe0kYCjTNJt6U+o0aR0SQYCYKNiJZWNbsi37/CEkBBjw5aeb/X7N9B8k/X5Paf/48Mz3+T6mkZGREQEAAAAwhDnRBQAAAABTCQF7nH7zm9/ovffe07FjxxJdCgAAAJKQiSMiY9fR0aGioiIFg0EVFhbK6/UmuiQ... | [
"triangle",
"circle",
"square",
"octagon"
] | null | 2 |
math | grade-2 | skip-counting-stories | false | true | Each desk drawer has 2 black pens. How many black pens are in 6 desk drawers? | "iVBORw0KGgoAAAANSUhEUgAAAWkAAADgCAYAAADBs5fqAAAtSklEQVR4nO3deVxU1f/H8dcMuwu7gAqKiPu+73suuZWmZZrljuauuWSl4v6tzAVN7Zem5VJGLuWeKJhimhuauYCiooHkCiKgMPf3B3kTAZXFucP4eT4e83jAnTsz7xkOnzlz7rlzdIYYRUGIl8Si4SEADAtopnESIZ6PXusAQgghsmZSRfpOioLP0ThqhsVzJ0U6+CL/kzYtcstoRXrTrYf4RyU9taEGx6VwKdnAiYRU+kXcN1Y0IXJE2rQwBqMU6dGRiXQ9m4B/VBI... | [
"8",
"12",
"10",
"6"
] | null | 1 |
engineer | grade-7 | laboratory-safety-equipment | true | false | Select the gloves. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAPoAAAD6CAYAAACI7Fo9AAAj10lEQVR4nO3de3RU1b0H8O8+58wzyeQJMchLeSgPUQQReSllWbUIKtIqWgqoQG3rbe3qtUv0uupSW6u916vXe1V8VOSKWK+x+FgIBUVtAJGgIKIIASKEQCCPyWTec865f0yI89gzcybnTCaZ+X3+IzOzZzPJd/Y+++wHQAghhBBCCCGEEEIIIYQQQgjRiGW7Ar3FyXPOqRRCoUeyXQ9iHEWS7qs8fPhktuvRG0jZrkBvIQQCxUwQbs92PYhxBL//cQAUdABCtit... | 1 |
science | grade-3 | identify-properties-of-an-object | false | true | Which property matches this object? Select the better answer. | "iVBORw0KGgoAAAANSUhEUgAAAKwAAADQCAYAAACa0YpiAABKkUlEQVR4nO2dZ5Cd53mer9P7nrK752w72ysWheiNwAIgCfYmFrCClhxNPJNJokzG8jgeJ9FYY48tcyaxpJk4SmKSIsEiNokiSEIkERQCi7oAFtvr2Xp67zU/4POGlGlLJEEuFjjXDP9gwd3vfLj3+973ee/nfiSFQqEAkEwmWVxcJBwOk81mKVFiqZHL5ZSVlVFdXY1arQZAUigUColEgomJCRoaGlCr1SgUiiW+1BIlIJPJkEwmmZ6epq2tDbVajSSRSBTGxsZYtWr... | [
"hard",
"scratchy"
] | null | 1 |
math | grade-7 | rational-numbers-find-the-sign | false | true | The number line shows an unknown number, x. Is – x positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAlwAAAApCAYAAADgbPfrAAAGX0lEQVR4nO3dT0yb5wHH8d/7go0HptSiREMZkVNt2sbSZlEIgTRrc16Uac7ogQvKlClSoqhSe8kl7Q5hkXLoNGmJlGiRJkUNjVSNaM21m2Q4DEMcSmqBqh7skm5aQ2jSxGD8B787AG4oUOyB/djk+7mg9/Er9LPey8/P+7zPazmO4wgAKkhfX58sy1J3d7fpKCgRrjkqXbXpAABQqHv37pmOgBLjmqPS5V240um0wuGwQqGQtm3bxq8MANgsmUdKR3vlPBlT9tGALO/... | [
"negative",
"positive"
] | null | 1 |
math | grade-3 | scalene-isosceles-and-equilateral-triangles | false | true | Is this triangle equilateral? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADOCAYAAAAEw3WqAAAk1klEQVR4nO3df1yV93338fcBDj9E5ecBFEVQqYhRYxJTTRtP8YQFbE8YUWQJ2X2TuI7Z+2Z3l5aszWrcTEzF0N3pRrstLOntuNMGEx3p7rKtxfYeyTKajkTxB0kwwUgS1IPACSdHRA5nf5iQUDRRPHBxLl7PxyOPPnq4zvV9k/rHu5ef6/u1+P1+vwAAAAAERIjRAQAAAAAzoWBjyjt+/LiysrLkdDqNjgIAAPCZwowOAHyaEydOKCcnR++8846GhoaMjgMAAPCZeIK... | [
"yes",
"no"
] | null | 1 |
math | grade-4 | measure-angles-with-a-protractor | false | true | Is this angle acute, right, or obtuse? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEVCAYAAADaTZLyAADhEklEQVR4nOz9d3hUeXrmjX+qlHMpZyQUEUIogEgiSeScU3fT3ZM8a4/D7G/Hr8P7rr322h7ba3sdZtzumY6EJoMIIiclQCijnHNOpaxShfP7o1qnUZMkENDQ38919aVW1TmnvlWoqu7znPu5H4UkSRICgUAgEAgEAoFgSlC+7gUIBAKBQCAQCARvE0JgCwQCgUAgEAgEU4gQ2AKBQCAQCAQCwRQiBLZAIBAIBAKBQDCFCIEtEAgEAoFAIBBMIUJgCwQCgUAgEAgEU4g... | [
"acute",
"obtuse",
"right"
] | null | 1 |
math | grade-1 | which-tally-chart-is-correct | true | true | Jane was at the farmers' market. She saw these things. Which tally chart shows the right number of each thing? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADhCAYAAADyOcJJAAA150lEQVR4nO3deZhcV30n/O+5S+29a2lJ1uJNsiWD5YDiBZtFaAgEBB4nGM07JJgkOA9jkuHFeZMAJiF4EpjEZHgTMpmA34kNmWRswDg2IMgr24DBsrwKW4u1WlJLrV7U3bUv995zzvxxu6u7uqq6q7qrVSX19/M8etx1696651Z3P/72qXN/P6G11iAiIiIiooYwmj0AIiIiIqKLCQM2EREREVEDMWATERERETUQAzYRERERUQMxYBMRERERNRADNhERERFRAzFgExE... | null | [
"iVBORw0KGgoAAAANSUhEUgAABEcAAADhCAYAAAAqLNtuAABp4klEQVR4nO3deXxV9Z3/8dc5567ZQ1jCDiqgoAJWxA23Uqe2ov4cF8baulQdrW3VcZm2autUuzjd7GhnWms7auu0YuuKSy1qqxVEcGcRZA9LyEZyb3LXs/z+uJDkJjchCQkJ5P18PHiQ+71n+Z6bm+W88/1+vobneR4iIiIiItIrDMPo7y6IiEg3mf3dARERERERERGR/qRwREREREREREQGNYUjIiIiIiIiIjKoKRwRERERERERkUFN4YiIiIiIiIiIDGoKR0R... | 1 |
math | kindergarten | select-two-dimensional-shapes | true | false | Which shape is a hexagon? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAF8klEQVR4nO3dTU9bRxTG8ce8LdKk3bXqB2i7rNRNPkY3/VRV1VUXXUaREkSLGllKsghFqkBRUuOQICPh1ETCQhQXBUsYm2Dsy3QxuX1RQDH2zDkzc5+fhAQY3TuLv4zNHO4tGWNM6wzYPgGOM2BoQDSxmRJwYxr47BrwyRxQavWNqXS0l0Upu/khMNM4sV98Ogd88YGtkGhSxxnwsgfsnwF/nABTnaF9gJGRSzembVMA0M2Aqew/DxC5lDc1MMCU7lKoKBgaiWB... | 2 |
math | grade-8 | identify-reflections-rotations-and-translations | false | true | Look at this shape: Which image shows a translation? | "iVBORw0KGgoAAAANSUhEUgAABbAAAAC3CAYAAADD5XikAAAaWElEQVR4nO3dbYycdb038F87u2W3u6VIsO1MhRY996mNFJFRfKCrCIjUh+ToLVB8oSSGN2rEoy/Etjlgck48xuROOCcac15ANEbkePqAGAyCDbFFbeiFChQLEbVFr7mxyg12y47dh94vtru2dBfa7XXNNdfM55OQnW3n/OaX6ew657v/67vzIuJIAAAAmThyxNtrAADIyvyiFwAAAAAAgJkIsAEAAAAAaEsCbAAAAAAA2pIAGwAAAACAtiTABgAAAACgLQmwAQAAAAB... | [
"B",
"A",
"C"
] | null | 1 |
math | pre-k | subtraction-sentences-up-to-10-which-model-matches | true | false |
Which picture shows 8 − 6 = 2? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAdoAAABKCAYAAAAc9ZVYAAARUUlEQVR4nO2deYwcVXrAf1XVx/TcM75mMIex8YEBg534ArQYliyLN95AsKWsDbaT1WajSBs2RCIK/xCkJasoWiWbXaQoShRjbLSr4F0WhGFDCEdWa884NmCDwSc+sD2ee6Zn+qiuqpc/evqYnj6mZ6o84/b3k0bjrvfe1+83/qSvjldVmlJKdZhwMgJhGyyFIAiCIAgTxKdBnQELq2FOALSOuFLtg1M9LUEQBEGoPFbXg+9EJPmhNQCLa5JVWBAEQRCEiRG24dg... | 1 |
math | algebra-1 | identify-linear-quadratic-and-exponential-functions-from-graphs | false | true | What type of function does this graph show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAETCAYAAAAMFHHvAAAZZklEQVR4nO3d7W+cd5kv8GvSJHZs0nrLcZI+kVhqiZVmqSMnaaLlVE1eEZoBld02CNQjFZ1Kiyj/ACuxsNCqldhXtCA4S1seVqIVoEgJaiUkglbadZJlVHfzIGdVjpP20CZjKHaLH/J4nxdhxuPYiWfse3zP2J/Pm94zvmZ81Yk83/z0u39XLkmSJAAAgFQsy7oBAABYTARsAABIkYANAAApErABACBFAjYzmpiYiImJiazbAABoOgI2M+rv74/+/v6s2wAAaDoCNjP... | [
"exponential",
"quadratic",
"linear"
] | null | 0 |
math | kindergarten | cubes | true | false | Which shape is a cube? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAUq0lEQVR4nO2dWXBUV36Hf73c3tWrNoSEhHbQCtjg3YztTKom5XEe4jxkMqmal0lVUp48pFJ5SKpSrnLlIZsn8cw4XmbsMTaGoQJGbAZhQKxCtjAIxCKB9hbdUre6W61W7+o83L5NNxKgpW+fe2+f74k+ffueP+LH0e17z/mOLJFIJBwR4O484I8DsQQoFMGhlAEFCqBOB5SoAJkjnEj0zJIui0JZPjuMgHJwnn2xTgU06NlUUyhCwx8H7gSA+xFgYB6Qz8bYN2h... | 1 |
math | grade-6 | which-figure-is-being-described | true | false | Lola built a 3-dimensional figure that had 9 edges and 5 faces. Which figure could Lola have built? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOwAAABSCAYAAABXEzgRAAASCklEQVR4nO3de1RU9d7H8ffAgHLRQRMUSbEcNbEEU550YWaeVNSU0C60EJEuLstMsOTSSkUzTfNGT8tqqTE9eCqyk0KQgRdAPeZzkpjK8ph4niGvYMKgyE1gP39Ms5txuAvOjP5ea7Fk9uzLly2f2b/927+9UUiSJF2shcJKuFoPdRKCINgApQK6OcIgV+jtbJimuFgjSf+6Yt3CBEFo3kPdwcsZlKcqDRO8nWGImyHRgiBY39V6OHkNLtTCb5WGwDpcqTO8KcI... | 1 |
math | grade-3 | parallel-perpendicular-and-intersecting-lines | false | true | Are these lines perpendicular? | "iVBORw0KGgoAAAANSUhEUgAAAKUAAAC4CAYAAACCYyyfAAAKjUlEQVR4nO3de1BU5x3G8edwEUEJJAJFXXBaB7YKpTOKThRjE9uqaapidNRoqCEapl7bekkdkZBVTFokqZpiHJREm2jQ1CSadmIYbQijcWqYXiioCzUadkWqhIgYvADZ/kHYcBWEPed9zznP5y+EZeYd+M7B5fdjj+JyuVwgkoiX6AMQtccoSTqMUpDshb+Bo8Qu+hhSYpQCbfzJE3hjTQbqa+tEH0UqjFKQiNhoAEDhm+/ANmkO7CeLBJ9IHoxSEOv4Me63ay79D1m... | [
"yes",
"no"
] | null | 0 |
math | pre-k | circles-squares-triangles-and-rectangles | true | false | Which shape is a circle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACTCAYAAAB28ADfAAAGNklEQVR4nO2dS08bZxSGX3NbpEm760VZ97Lpmj/T39cEBSkbuonUDbsYkBIRlKZUiEUCVIIFOEYO2EwWn2go2Nhjz3e+c3kfyRL2zMQj9OB4zrznO62qqqqjC+Cfc6AzAPoVCJmZhRbwaB748QHw3RLQOvpUVe2z0qdFPLP8NbCwe56e/LAE/PxVspCQWekMgHdd4PAC+PscmDvrpw2UjDTJo/nkFAB8HABzgxsbCGmSa6cuK2Cu7KmQKFA0IgJFIyJQNCICRSM... | 1 |
math | grade-2 | greatest-and-least-word-problems-up-to-1000 | false | true | A front desk clerk looked up how many guests the hotel had each day. On which day did the hotel have the most guests? | "iVBORw0KGgoAAAANSUhEUgAAAVMAAAC9CAYAAAAOcp4yAABE4klEQVR4nO3deXhNx//A8ffNLolsEomQxRJNQxGiVC0hqLaxRBFfiqBaay2tpaq2UmlssZaiotUofiW2ptSSaNUSS0SKEiRiDSIhe3Lv+f1x5SRX9k1C5/U895GcMzNnjpv7uXNm5pxRBHt7SgiCIAhlogPQ6aORlV0PQRCEl9bh9WvQquxKCIIgvApEMBUEQSgHIpgKgiCUAxFMq7gESZvXkt14M7kZCZJ2ZVdHEIQCiGBaiXZnWTAvw67QIHlUaUq0Sp/zKiNGpDm... | [
"Sunday",
"Thursday",
"Saturday",
"Friday"
] | null | 2 |
math | algebra-2 | classify-variation | true | false | What does this equation show? Assume k is a non-zero constant. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAdsAAAA2CAYAAACP1zPcAAAOO0lEQVR4nO3ce1BU5RsH8O8B3Fiu6xValNHUn3fJK6ZoQGIRpqZiOU6jk4ZGOuFgSMY0owU1po1TDqNhVupMFmZ5Ic2cQQ2oFbQy8tYP0RQI8BLoriyCz+8Phv2JsLsH8IjR9zPDjPue877vc84873mWc44oIiJ/VQP/tQDXa4EaAREREbWCmwJ4uwJ9PQA/HaD8ZRU5WtnWYREREbVPwT6A2x+Wug8P64B+nnWVmIiIiFruei1wxgyUVANnLYBLZU3dBhZaIiK... | 0 |
math | grade-7 | identify-equivalent-linear-expressions-using-algebra-tiles | false | true | These tiles represent the expression 4x+4x+1. Which expression is equivalent to 4x+4x+1? | "iVBORw0KGgoAAAANSUhEUgAAATIAAABoCAYAAABypHzgAAAFPElEQVR4nO3dTWwUZRzH8d9sW6l94cXSQgFFaAjyoqaLYMLBkGgTwBPhwsHEgx5M0OgBLwQvHjDcuHggUW5GMDSc1ITaS402QdMKpq0G27ShtLVb0qS0ayudGQ8oidouyc4z2/yf/X5ubdP5TZ7Dl2Vo2SCO41gAYFhmpW8AAJIiZADMI2QAzCNkAMwjZADMI2QAzCNkAMwjZADMI2QAzKss9MWeXIfG80POR5trtivb2MZeynuu+H5Ovu+Vg2C5X1E623tC89E9ZSr... | [
"4x+5",
"2x+9",
"5x+4",
"8x+1"
] | null | 3 |
math | grade-2 | identify-multiplication-sentences-for-equal-groups | false | true | Which expression describes the model? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADXCAYAAAAgGib5AAA9wklEQVR4nO3da2ws52Em6Leq+n4hm83mrZvUoY4k4CiSEUMrxQowUmLljINkYf0xbC8wYxuGZOHkR4ABFthkFlh4PR4bGCA7mPEgM8pxtMjEk2CCiTfJLoKxPbKcaO1EvmwC5GRs2UfWES9NNsnuJtl3dndV7Q+mi13dzb5W1/V9gAOxKV6q2PV+9dV3FVRVVUFERERERIYQrT4AIiIiIiI3YQWbiIiIiMhArGATERERERmIFWwiIiIiIgOxgk1EREREZCBWsImIiIi... | [
"3×3",
"3×5"
] | null | 0 |
math | grade-7 | identify-trapezoids | false | true | Is this polygon a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABNCAYAAACc5xPcAAANEUlEQVR4nO3dfXAU933H8c/u3e0thyCAlQgsHOwIHAwR5lES4kkG20mx4zhu3dZJnKR20mknGbt1mtZTT+NpZzrOxKmpa7tOwqSTNkldx01bkpAUbIMkC1lCRjKQGBwbMMbCQEDiQQ97e3e7/cPA3uEaCDpp707v1393I6EvoJ377Hd/39/P8H3fFwAAAIC8MMMuAAAAACglBGwAAAAgjwjYAAAAQB4RsAEAAIA8ImAXs2PHpK6usKsAAABAFgJ2MXv8cam+XlqyhKA... | [
"no",
"yes"
] | null | 1 |
math | calculus | identify-functions | false | true | Look at this graph: Is this relation a function? | "iVBORw0KGgoAAAANSUhEUgAAAQ4AAAETCAYAAADH+ejgAAAWv0lEQVR4nO3dbWxT1/0H8K9DEjtxIaEoTtYWEU908YjbOArkQUJo5q9KdTGtQCqpNO0vwYo0NPKq09ZXWVdKRSfavmgoqjQRWu1Fw6YKiVQgdasZf6Q8QBRTYv6O2i1mbUce/iVOghM7JvH/hfG1r+M82LF9n76fN/XDzc0RtN+e8zvnnqOLRCIREBGloUDqBhCR8jA4iChtDA4iShuDg4jSxuCglILBIILBoNTNIJlicFBKbrcbbrdb6maQTDE4KKWenh709vYu+31... | [
"no",
"yes"
] | null | 1 |
engineer | grade-5 | identify-laboratory-tools | true | false | Select the test tube. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAPoAAAD6CAYAAACI7Fo9AAA7SElEQVR4nO3de5hcVZkv/u/7rrX3rnvfEnIhCfcQuYW7EUm4hIAjIioQEBwRZhTROTPq+JuR4+M5zOjMHByHn8c5o+BvEEcJkkaIDorOb8QoMtyTYEJIgAQIuZF0+lrdtWtf1nrPH52OIeTSSbq7qrvX53nydFd1ddVbVf3Nrr33Wu8CHMdxHMdxHMdxHMdxHMdxHMdxHMdxHMdxHMdxHMdxHMdxHKe+UK0LcIbPnXfemQ2CoIGIcrtd7TGztdYa3/e7lFL2ppt... | 1 |
math | grade-3 | match-analog-and-digital-clocks | true | true | Look at the analog clock: Which digital clock shows the same time? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABUbElEQVR4nO3deVyU1RoH8B8urIJaLiEoiJkylruAWrQoWoJa4q655lYZmluL2nWrFL2Ky3VBxS2XBEsFSyg1SmUxc7kOWcqig+RFQwaBmVHk/kGMIMPMOzPvMDPw+34+fWKY8573iZgPz5x5znNsiouLi0FERERERKKoZe4AiIiIiIiqEybYREREREQiYoJNRERERCQiJthERERERCJigk1EREREJKI65g6AzE+hUKCwsBCFBQUoLFSgsLAAhYWFqF2nDhwdHODg4AA... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA5oAAAEJCAYAAAD1mFhPAABjNElEQVR4nO3deViUVfsH8C+o7KCUiggKoqZgKW6AWlgpWopW4pJLrrlram69b2k/t8qlFJdUzN20UizXBFrMXFjMUF+HNGXRQSRUcNhmRoHfH8TIOvPMzDPMDHw/19Ulw5znPLfTUHNzn3Mfi6KioiIQEREREZEoLCwsjB0CkdFZGjsAIiIiIiIiqlmYaBIREREREZGomGgSERERERGRqJhoEhERERERkaiYaBIREREREZGo6ho7ADI+uVyO/Px85OflIT9fjvz... | 0 |
math | pre-k | triangles | true | false | Which shape is a triangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJAAAACVCAYAAAC3i3MLAAACaElEQVR4nO3UPW5UVxyH4f+MPwpiSJcI0ZJkCTRsghWFrIhNpGIHfNRgWttYwnh0U1wh0SCwXqHJSM9T3aujI/2KV2ezLMtyfjPz9nrmcjdzuwx80/Fm5v7RzB/3Zn4/ndmcf1qWlxf7nsUhevJg5vjN9frz8HTmr1/WuuBbLnczrz7OvL+ZeX09s724XQ/Ew4+4f7S2MjNztZvZ7r46gB/xpZXPy8x2v1M4dAIiERCJgEgERCIgEgGRCIhEQCQCIhEQiYBIBEQ... | 1 |
math | kindergarten | compare-two-groups-of-coins-pennies-through-dimes | true | false |
Which is more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAlYAAACYCAYAAAAm2KfyAAB0mUlEQVR4nOz9d5xkZ3Xnj79vrFzV1V2d83SY7sk5zyiiHACBRDDYZJvlh23w2l7Yr1lsr9n1eoHF2NhCGJAJEgIJEAhJozia0eScOsx0zqm6crjp90dNXWsA2yM0I43o+3695tXd0zNV9dznPuc595zzfI5gWZY1kYdzaUgYoFs4ODg4ODg4ODhcArIAAQnavFCpgjCRs6wD8Tf6Yzk4ODg4ODg4vLnZGAS5N134oVqFxb6C1+Xg4ODg4ODg4PCfkzCgOwXjeeh... | 1 |
math | pre-k | represent-numbers-up-to-10 | true | false | Which group has 8 stars? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAEcCAYAAAAV9AvgAAAOPUlEQVR4nO3dsW9b57nH8Z+chAZa2nIBoje+HJIaUmtPpBZ3IiQgHq5VBBUvoIBTJfgPkDw28ZB0CNzNQqztAlf0dpEGCJUgyhLAdOQpi48npZeBpAy2XISDIisB5MZgB4aqZJESefjy4Tkvv5/FVhwdnQcQv35f2y/PUK1Wqz15Jn3zo/T0ufRTTQDgxMtD0pmXpNFfSP+RkIae7NVqX+30+7YA+O73Z6WXKz/WPzifkH73y3qNAMCFp8+lv/8gbT2T/v9H6dT... | 1 |
math | algebra-2 | linear-functions-over-unit-intervals | false | true | How does h(t) change over the interval from t=
–
3 to t=
–
2? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAABsEklEQVR4nO3de3BU550n/O/pe7cuSEggCWEJxEUgQNhgjLnFeHBsj514A0kGJ+8m4xkns87mtnmrdio1lU3tpFyuVM0kqXidbCY7GduZd2oz8QR7xmBBsMGGiBiMDAJJGGQBuqJLS61WX8+lz3n/aHUjce2WzqPulr6fqlTcre6vHs7pPv3rR7/zHMkwDANERERERGQKS6YHQEREREQ0m7DAJiIiIiIyEQtsIiIiIiITscAmokmefPJJvPbaa7f82fvvv48HH3wQqqo... | [
"h(t) decreases by a factor of 4",
"h(t) decreases by 4",
"h(t) increases by 4",
"h(t) increases by 400%"
] | null | 1 |
math | pre-k | circles-squares-triangles-and-rectangles | true | false | Which shape is a triangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAIoAAACVCAYAAACHB2IqAAAGKklEQVR4nO2c3U4bRxiGX/OTgzRpz9r0AtpeQq6jN9O76i00UStUwQE5CIoTaCAKUWoiRSDsNbGxd3tgkEzDwMLOzPcz73OEsdF+Hj8s84DZXtM0zWAK/DMGhnNg1oAQrPWAx6vATw+BHx4AvcGkabZOpccimnn6LbC2N17c+PEB8Ms3C4sIGc6BNxXw7xTYHQMrp7PFHZSELPN4deEEAIzmwMp86Q5Clrl04rwBVmRHIVagKKQVFIW0gqKQVlAU0gqKQlpBUUg... | 0 |
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 = 2? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFhCAYAAABK/t0lAAAjJUlEQVR4nO3dfXCU1eH28SuQTSKJa4JkY2FXUPKThDQIrCQQRyyIVasZlFqxI+Ab1JSG+kw7OrbaTtpOofBYrFisP9HhbTqD2sJDnSlqUfzpIyGpi7yaRRDxSXjbYDdsEpqYwD5/UKKRTQzZs/e9m3w/f7H32ey5Ukf36uHc504Kh8NhAQAAADBigN0BAAAAgL6Egg0AAAAYRMEGAAAADKJgAwAAAAZRsAEAAACDKNgAAACAQRRsAAAAwCDLCnZLS4taWlqsmg4AAAC... | [
"0",
"6"
] | null | 1 |
math | grade-2 | identify-fourths | true | false |
Look at the colored part of each shape. Which shape shows one-fourth? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHwAAAB8CAYAAACrHtS+AAAZB0lEQVR4nO2deXzU5Z3H37/JTCZ3Qu4hhgRykZNAuAmCoogc0ooHFuHl0dVt7W67oFXL1tdqu/Vota7t2tVeq1ZLBS8iwlYRCEe5whVICLkTIPc5mTMz89s/ZiZcAZLf/OaI5P165UWSmd/z/ZLPPM/3Ob+PIIqi2GyGKj1orWARGeUbhFKAUD9IC4I4fxCaTaJ4sNfbbo3iCWaEgbJSb/9B4w8ZwfZPwyjfHLRWqNBBkxnO6EHRa7G/MCr2N5NQP7u2AH1WUFg... | 0 |
math | grade-8 | identify-functions-graphs | true | false | Which of these relations is a function? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAATIAAAE3CAYAAAApC812AAAWWUlEQVR4nO3df2xT573H8Y9DEjtxIaFtHKqVBt9LmwzSERQoiXZXNd2mLYVsYlvLfv7RaJU2tfwz1I2/svXXVCb6V+nWTRp06yot1VahJRWV0G16df9ICEW4aoLCNilmrG1+7A4HGscJBN8/jI9toIEkPj5+znm/pKrHjnnO0+B99jzPec75+pLJZHJsTvp7XLowL11KCgCKWqlPWrlCurtSqi2XfGOzyeTgeae7BQBLs22VVPq3eOrFHeVSfTCVcgBQzC7MS6e... | 1 |
math | grade-1 | addition-sentences-up-to-10-what-does-the-model-show | false | true | Which addition sentence does the picture show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABUCAYAAAC4PkCPAAAP2klEQVR4nO3dS4xcV0LG8e/cR72rH+W4/UiU8QvngcfxECJIggKZQbNAmQXDiKwCAg1IaCSYYQcCJARCLEAgkFgwEgiIBGIBQpkVmgWKNAkbO5kJZDx5jRMSO+6O7e6uqq6ux72HxXW326+Oq/vec6vr/n9Sy06l+p7zZZH++tS95xhrrRUAAACAVHh5TwAAAACYJhRsAAAAIEUUbAAAACBFFGwAAAAgRRRsAAAAIEUUbAAAACBFFGwAAAAgRRRsAAAAIEUUbAAAACB... | [
"6+2=8",
"4+2=6"
] | null | 1 |
math | grade-1 | which-tally-chart-is-correct | true | true | Lily and her class went to the pumpkin patch. They saw these things. Which tally chart shows the right number of each thing? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADhCAYAAADyOcJJAABT7UlEQVR4nO3deZgkV3nn++85EZFrZWVVVy/VLbV6E0ILWljEIjBIQhh7ABnwjIeZawNi8cx9WIzH9tzrQQzjjbkeYIwtjz0WeCxsHsB4BgQWA4yxWiwSaGmpJbfUakm9Vi/VXWtmZeUSyzn3j6jOrKzMWruqa3s/z8OjzMiIjDjRWTy/PPmec5S11iKEEEIIIYRYFHq5L0AIIYQQQoi1RAK2EEIIIYQQi0gCthBCCCGEEItIArYQQgghhBCLSAK2EEIIIYQQi0gCthB... | null | [
"iVBORw0KGgoAAAANSUhEUgAABFIAAADhCAYAAADrq5HCAACcpUlEQVR4nOzdd3xc1Znw8d+5907TaFRdZBljyzZgsMGmmG5aICSEFkhY8i6hJEB2Q9q+CdkNIW0hyWYTdknY5N1QEgIJIZCEnkIImGKDqbYxGAOucpGtOqPRtFvO+8fII41mJI2aZdnP9/Pxx5o75849Z+ZqNPeZ5zxHaa01QgghhBBCiFGhlBrvLgghhBhDxnh3QAghhBBCCCGEEGKikECKEEIIIYQQQgghRIkkkCKEEEIIIYQQQghRIgmkCCGEEEIIIYQQQpR... | 1 |
math | kindergarten | ordinal-numbers-up-to-tenth | false | true | The first picture is a plane. Which picture is fifth? first | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABdCAYAAACfMRFHAAAn8ElEQVR4nO3de1xUdf4/8NeBIRlABoNFWi5iYqCJgOUVLHtsWqal29Z629Zb+9sVrbV1Ra2+Cfu1xEtlG6Lf389r369pWm2Zlpd2s69iaiYIKrgO2wCaqOgyMsygzMz5/XGYYQbmcs7hzDAz5/18PPbxWOHMOcfTeb39zDmfC8OyLAtCCCGEEEKIJIK6+wQIIYQQQggJJNTAJoQQQgghREIea2A3trLoe/A2sv7RhMZW6oVCCCGEEELkQVQD+7OrrSioanHZcD7SYIR... | [
"plane",
"bear",
"train"
] | null | 1 |
math | grade-7 | classify-quadrilaterals | false | true | What name best describes this shape? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEACAYAAACJVgHaAAAv8UlEQVR4nO3de3Cb933v+Q9AgASBB+LNtiRalkhLCnUnJV4AinQkH+c0maZ7rGTbtGfaE8l70vS0zUnlnp3dmd2Zjf3nzpyt5UzTtCc5G7kns01zNqmd3XgSn3pNxeKdlEhJlMXQMilRoijLvAkPQYAggf3j0Y2ObPEC8sHl/ZrxkIIA8isJHH/wxff5/hyJRCIhAAAAAEnhtLsAAAAAIJMQsAEAAIAkImADAAAASUTABgAAAJKIgA0AAAAkEQEbAAAASCICNgAAAJB... | [
"trapezoid",
"square",
"rhombus",
"parallelogram"
] | null | 1 |
math | grade-8 | identify-lines-of-best-fit | true | false | Which graph shows the line of best fit for the data? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAWYAAAFtCAYAAAA04cDVAAA+/UlEQVR4nO3deXQU150v8G91t3YktZCENpBAgCRkFhsMGNtgcOxAjAGDF8wxk/HYQ8ae57EniZPn8cvJm9gO2U68J3GYsU0S+0yCHjgGDMEOBhRDLEAIgYQkFqFdrb2lltR71/ujepFYjLa+VZK+n3NA6lJ33V+1Sl+VblXdK8myLJscwMVewOIGXDKIiEgggwRE64GZkUBSKCCZ7LJ8vEvtsoiICAAWxwCGC73Kg5RQIDtKSW0iIhLH4gYqeoBGB3C+F9B1uZQ... | 2 |
math | grade-4 | interpret-stem-and-leaf-plots | false | true | Dana counted the number of words per page in her new book. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC7CAYAAABfLOnYAAAlfUlEQVR4nO3deXRN9/7/8dfJICckEhFiiEQIiamqhqbm6X5dFa2aGnWR2+Br+mpRlPRq3Kqh92pptapu0ZaWK5RVRV0tndRYQVAxz5oYEy2NJJ/fH/3l3KaRSNuzTwzPx1rW2j5nf/b7vf318lmfvbfNGGMEAAAAwCncirsBAAAA4G5CwAYAAACciIANAAAAOJGbzWaTr6+vcnJyHIMrVqyQzWaTzWbTiy++mGdCzZo1ZbPZNGXKFEsaWrt2rWw2mypUqGDJ9QEAAAA... | [
"8",
"9",
"10",
"11"
] | null | 3 |
math | pre-k | represent-numbers-with-shapes-up-to-3 | true | false | Which group has 2 triangles? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAFhklEQVR4nO3cv28TdxjH8cdJiFQKbZe2Yq1aunVlqSp16dyhW/8IEEgwwcaPjSAkGJwFWAgjWUCEBVCkAyLBEEvUHSIzFCtSFGFwZJvjOligUgixfd/v3X0e3q8JY2I9j3jrSDh/XcuyLHvWN/u7a9ZJzV5lBlTOTM1s77TZD7vNvp01qz3rZdn952WPBYzuwBdmM83u8MG+WbMfPx9WDVRNJzV78tLsn77ZX12zqeevhk8QLaps7/SwUTOzF6nZVPqfJ4Aqe9P... | 0 |
math | grade-1 | simple-fractions-what-fraction-does-the-shape-show | false | true | What fraction of the shape is purple? | "iVBORw0KGgoAAAANSUhEUgAAAVgAAABkCAYAAADDoygiAAAPtklEQVR4nO3d+3Nc9XnH8ffu6n7dlWxLsiRbq7stCcvmYmwChNAECoQpNJdCkwwmaTtJk5IxtP0HSEk6tDOdzFCGSSlJO6XpZELSBJg05VaDufkGSLZkSZasu2Rpd6VdXXe1pz+stEi2ZF327EXy5/ULI+85Z7/oh88cPec5z9diGIaBiIiYzhrvBYiIbFUKWBGRKFHAiohEiQJWRCRKFLAiIlGigBURiRIFrIhIlChgRUSiRAErIhIlClgRkShRwIqIRIkCVkQkShS... | [
"1/5",
"1/2",
"1/3",
"1/4"
] | null | 2 |
math | grade-5 | parts-of-a-circle | false | true | What is C? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADICAYAAACdx5VnAAAkP0lEQVR4nO3deUBVZcLH8d+9XFZBFnELFQSX3Jfc0VwSy1I0LUvTnKZenXnrfbXeqZl6bZmaarZ636Z6W6YmpjJtca80TQE1zXDBNVcEBRRkU0AULvD+gZ4u457oOffy/fzjec45F34X7x8/Hp5zjq26urpaAAAAADyC3ewAAAAAAOoOBR8AAADwIBR8AAAAwIPYbTabkpKSzjkwYMAANW/e/Jz96enpstlsevvtt/Xee+/JZrPJ6XRe86B33XWXhg8fXidfa+PGjZo... | [
"diameter",
"radius",
"center"
] | null | 2 |
science | grade-5 | identify-ecosystems | true | false | Select the savanna grassland ecosystem. This ecosystem has:
warm summers and warm winters
a rainy season and a dry season
soil that is poor in nutrients This ecosystem has:
hot summers and cool winters
a medium amount of rain
soil that is rich in nutrients This ecosystem has:
long, cold winters and short, cool summers
... | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAp8AAACtCAYAAAD2xRSHAAEAAElEQVR4nOz9d7Rkd3nmi392rF05nTo5dPfp0zm3WmplCQkECBtjkrkGzGAGh7GNPU7M9Sz7esbL8FsMM75g+5qBMTZgkoVBmCQhqRU7SGp1UOc+p0/OleOuHX9/7Krd5zTC2DO2sU09a5W60t6161u1dZ563vd5XuGFkutuDUNUooMOOuiggw466KCDDv5JULHhcg2EsuW6HeLZQQcddNBBBx100ME/NSo2CK7ruj/sA+mggw466KCDDjro4EcD8tobu+96Nf0... | 1 |
math | calculus | determine-one-sided-continuity-using-graphs | false | true | Is f(x) continuous from the right at x=0? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAACEbUlEQVR4nO3deXxU5b0/8M+ZNZONbJCQQBJ2BZIAghgW0etaUVu0FOtVa2u9ta21m21tr7a3ldpN21ur3m7+6tJVWhUVI6IgoaACEQIJWwhkI2SfSWYyyzlnzvn9MUwkQmAC58nMZD7v18tXy2Tmm2/OmTnzmWee8xxJ13UdRERERERkCFO0GyAiIiIiGk0YsImIiIiIDMSATURERERkIAZsIhpk48aNKC4uxvLlywEAN9xwA1566aXT3ldRFFxyySV47733RrJFIiK... | [
"no",
"yes"
] | null | 1 |
math | grade-2 | interpret-bar-graphs-ii | false | true | Jacob asked his friends to vote for their favorite zoo animal. He made a bar graph of the votes: Which animal got more votes, penguins or hippos? | "iVBORw0KGgoAAAANSUhEUgAAAlMAAAFfCAYAAABqa0kOAACWLElEQVR4nOzdd5xU9b3/8dfMnOl1e2WXsnSkqiAdLFhiiZrYa4xJjLFFE2/0Xk00UZPrT9QYE40JMdeYGBNRsIEi2ACl9767sL1N7+fM/P4YXCDSloXdBT7Px4MHO2fOOfM5wy7z3u/3e75fXTqdTiOEEEIIIY6IvrsLEEIIIYQ4nkmYEkIIIYToBAlTQgghhBCdIGFKCCGEEKITJEwJIYQQQnSChCkhhBBCiE6QMCWEEEII0QkSpoQQQgghOkHClBBCCCFEJ0iYEkI... | [
" hippos",
" penguins"
] | null | 1 |
math | kindergarten | count-scattered-shapes-up-to-10 | false | true | How many shapes are there? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAGQCAYAAADbbRRJAAA+mklEQVR4nO3df3BV9b3/+9f+kWyTnZ9ssvcmgBB+GUCSgIChRwTxF6g49+jcOh0732o7R6f943ru7T3O+L3f9mKlxxmsY8+cEY7t11Z7dM4X9dYzJLZq1WoPkgAWEEuqGORXCIEAwQAJgST7/oGxKBCS7LXWZ/14Pv6sdq83K7Lz2mu/1nuFMplMRgAAAAB8IWx6AAAAAADWIeADAAAAPkLABwAAAHyEgA8AAAD4CAEfAAAA8BECPgAAAOAjBHwAAADARwj4AAAAgI8... | [
"6",
"9",
"1",
"8"
] | null | 1 |
math | grade-3 | identify-trapezoids | false | true | Is this quadrilateral a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADcCAYAAABK3dY6AAAWLElEQVR4nO3dfZDcBZ3n8W/39HQPEQiQAfIgAYmwAkEhIU8QkGR9ODa4uq7Ksha6692i97BHXVVurdory9q60iq39uoqulW7pvZBZV0PF1k5wnq48hAMeQCCAaLkzIEEhCQQniGZ6e6Z3/1BmO4eejKT9G/68fX6r1MZ/Wlm5veZX7/n98skSZIEAACQimyrDwAAALqJgQ0AACkysAEAIEUGNgAApMjABgCAFBnYAACQIgMbAABSZGDTMl95YjSWby3F9tdafSQAAOn... | [
"no",
"yes"
] | null | 0 |
math | grade-3 | choose-the-appropriate-measuring-tool | true | false | Which tool would help you use the right amount of chili powder in a recipe? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJYAAACnCAYAAADzJ6XqAAAUVElEQVR4nO2dbUxb1/3Hv352EhtMITyVxzzg/5Y1pm3iwNYloVrjVlXjTl3JlhdM6Vo1lSptL/qCSmn3ruqmSZOqSeuLqYpabWnarVVJtjYTzZSoISKhKwTcxSaQAAmYAsE2Nk+x/fu/MPfii81juNcGfh8JWb73XN9znU9+/p1zzz1HRUTknQZujANjESBMYJhlo1UBZg2wczOQpwdU3imiK4FUV4tZT+zLALSd47E3BXrAuiVmHcMsl7EI4A4BA9OAZxxQB8K... | 0 |
math | grade-4 | compare-decimals-using-models | false | true | Compare 0.21 and 0.1. Use the models to help. 0.21 ?0.1 | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC0CAYAAACuelsNAAAKFUlEQVR4nO3dT4iUhR/H8e/KRiouTSEGZYfFaqhD7sEWFCrCymgvYdhKWUx4aQ72DyMqipaQJLHwtBRFY1QwBdGhFis6FHXYUWIkwlbYCFGMJWgtNzKV+R3SoU1LZ/vu7P709brt9Hwen4UHfPv4tHY0Go1GAAAAKebM9AUAAMC5RGADAEAigQ0AAIkENgAAJBLYAACQSGADAEAigQ0AAIkENgAAJBLYAACQqPO/jIvlWtZ1cI4YGeydkV/XvcjfzdS9CACeYAMAQKL... | [
">",
"=",
"<"
] | null | 0 |
math | grade-3 | select-figures-with-a-given-area | true | false | Which shape has an area of 11 square units? The shapes are made of unit squares. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMIAAACkCAYAAADFTPF2AAAC9UlEQVR4nO3cPW4TYRRA0WPnBwnCTwVKSQEsgRIWwDbYIT3QsoMAEiWhTUKkhFhDMUKiJ+NBnnuqWJb8viRz9cnNWw3DMJxe8/WS8w03g2Tn7a+4v8ezuzw5ZHV6NQyfzuY+VjKflw/Y/3I5vjg+5MW9sZJk151vOPnJ92s+X7I+uxnfKIIsyf298ZmHiw3rzV9vJEvy55n/NbCe9yjJ/6EQEoWQoBASFEKCQkhQCAkKIUEhJCiEBIWQoBASFEKCQkhQCAkKIUE... | 0 |
math | grade-8 | compare-linear-functions-tables-graphs-and-equations | false | true | Function A and Function B are linear functions. Which statement is true? | "iVBORw0KGgoAAAANSUhEUgAAAjcAAAGlCAYAAAAGbtd7AABU/0lEQVR4nO3de3zT9b0/8FeSJk2aUFoKaQst0DILzBaKCi0qdOAFkDmncpl6FNmU89sRpx4v29GJR49zzivbmZeDDi/o5mRsIEzBWUBQKcxNShGog7TSUpuW0tCmuSef3x81kdLSJHy/ub+ej8cerPmm7+878f399J1v3vlGIYQQICIiIkoSylgnQERERCQnNjdERESUVNjcEBERUVIJqbkZPnw4FArFGf+3d+/eCKcZuldffRUKhQLl5eVR3/eHH34YeE7OO++8qO+... | [
"The slope of Function A is greater than the slope of Function B.",
"The slope of Function A is less than the slope of Function B."
] | null | 1 |
math | calculus | domain-and-range-of-exponential-and-logarithmic-functions | false | true | What is the range of this exponential function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABjmElEQVR4nO39f3xU9Z33/z8nM5PfP0kgwUCCiGJBgqJo+VWxWLXa2kLbxfazrfZyr667te329vn0uvW2n7bb7cebVz+7291vXdvtulev2u7V7/aqW7UVjBQLCoUKEiGQqIgBQgLkx+Tn/D5z5pzPHzEpEZAEzpvJwON+u3lrZ3LOMy/OmfOe17zznhmf67quAAAAAHgiJ9MFAAAAAJcSGmwAAADAQzTYAAAAgIdosAGMU1tbq507d47dPnLkiKZPn6729vYMVgUAQPa... | [
"$\\{y \\mid y \\geq-7\\}$",
"all real numbers",
"$\\{y \\mid y>-7\\}$",
"$\\{y \\mid y<-7\\}$"
] | null | 2 |
math | grade-6 | quadrants | true | true | Which shape is in Quadrant I? | "iVBORw0KGgoAAAANSUhEUgAAAfkAAAH8CAYAAADSe9ZXAAA59ElEQVR4nO3df3BV9YH//9fNvSQkIb8gQBII8VeIEiMKyE9Docgsigv+4uPw0VZHt9+lMx2crtMZl+12uk5l7XzGVql1t+x2pLt125HBdUvBRRAhBiMGBAIEBawhEBKSkN/c3Htzf3z/SG9KSEJuQs4995w8HzNOvSfJOS/fvfe87vucc891hEKhkAAAgO3EmR0AAAAYg5IHAMCmKHkAAGyKkgcAwKYoeQD63e9+pwMHDvQ89vv9+slPfiK3221iKgA3ipIHbG7Lli3... | null | [
"iVBORw0KGgoAAAANSUhEUgAAApcAAAH8CAYAAACEt4SVAABASElEQVR4nO3df3DU9YH/8dcmm4Qk5BcJkARC8EdAiREFRH6FQpE5FAv4g6/DV6tOvX7PzvRwek5nPM/r9JzK2bmxVc72rt51pDf12pPB/qBgUVSIIGJAIEBQwBoIISEJ+c1md7M/vn/EzQWSkN3w+exnP5vnY8bR/WT383n1093Pvvb9+eUIBoNBAQCAuONwOKyOgFEoweoAAAAAiB+USwAAABiGcgkAAADDUC4BAABgGMolAP3mN7/R3r17+x77fD796Ec/ksv... | 3 |
math | algebra-1 | domain-and-range-of-exponential-functions-graphs | false | true | What is the range of this exponential function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABjHklEQVR4nO39e3Rc9X3v/79GM6O7ZMmSLRkZyTbGBhvLYDBgYwdTU6CQkNgkNclqE/qlF3pCk5Ozvu0vq6vJafNlcfI9bdIVDsnJyTkpkH77/abhBGgxEY4Bgx052FjYMhI344tk2dZldJ37npm9f3+IEZavM/L+eDzW87FWFpnx7Jfe2nvmM+/56DN7exzHcQQAAADAFQW5LgAAAAC4nNBgAwAAAC6iwQYAAABcRIMNYJKGhgbt3Llz4vbhw4c1a9YsdXV15bAqAAD... | [
"$\\{y \\mid y \\geq 0\\}$",
"$\\{y \\mid y>0\\}$",
"all real numbers",
"$\\{y \\mid y \\leq 0\\}$"
] | null | 1 |
math | grade-3 | compare-fractions-using-number-lines | false | true | Which fraction is greater? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAB8CAYAAABTwcfUAAAWvUlEQVR4nO3df3DU9b3v8dcm2SwE84MEMiEaZKKTe24tIhFC0JYzMBRKacsphmquNEKnIDjWGgGx7YXBuTAMVj1zanWA0QEvbVDIicww6QAFCgGEhCRWLpjboxByqcaQQNkkm1+7yff+Edg28lPd3Q/7/T4fMxmS3f3j9Z7PEl775fP9fl2WZVmykZKSErlcLhUWFpqOElFnzpzRzp079YMf/EDZ2dmm40QUa86aOwVrzpo7iVPXHPYQZzpAqJ07d850BCM+++wzdXV... | [
"3/8",
"3/4"
] | null | 1 |
math | grade-7 | classify-rational-numbers-using-a-diagram | false | true | Use the diagram to help you answer the question below. Which of the following is an integer but not a whole number? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEuCAYAAAC08GWcAACIpklEQVR4nOzdd3hUZfbA8e/0mfSe0Emh944iTUQUUUDAgorKrh27rrquru5afnZdy65lbVhgBQUEEcEGSO+9hxJKeptMn7m/P24yEOmSTMv5PE+emUwmM+9MMveee+55z6tRFEVBiAYk3+bjUJWXEoePKreCzePD7lGwuRVsHkW9Xv29/3rN7W7fCW5TqHSrH6NovQazXoNZp8GsB4v/+tHL399mqb4t3qQlwaQh0aQl0awlwaQl0aRexhk1QX7XhBBCCHGmNBJgi0h... | [
"– 34 3/10",
"–58",
"1/6",
"104"
] | null | 1 |
math | grade-7 | identify-trapezoids | false | true | Is this polygon a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABuCAYAAAAd32REAAAQL0lEQVR4nO3de3CV9Z3H8fdJQhIwEZCKUkAFleKlIq1Y1LYMeEVEUSsrAm6ntV5rrTq6K6LcvLBuK70gSnGmHYWq2G0RRN3K1gsqOtKidVC8NHS7ImKKgiCGGPLsHw/w5IQACZyTX84579eMM7/fD5l8RuLwOU+e5/ukoiiKkCRJkpQRRaEDSJIkSfnEgi1JkiRlkAVbkiRJyiALtiRJkpRBFmypKX/8Y+gEkiQpR1mwpcY2b4ahQ6GyEu65J3QaSZKUYyzYUmNlZXD... | [
"no",
"yes"
] | null | 1 |
math | grade-2 | read-a-thermometer | false | true | What is the temperature? | "iVBORw0KGgoAAAANSUhEUgAAALkAAAEOCAYAAADVFbYlAAAWxElEQVR4nO3de5QjVZ0H8G+aAQWZ7mr0LDqvrlZEmUenwhGWYRxSPYoIqKmgKyiPJJ511xd0AkfBhTUJB5ZlEZOowKpHuwLqrMjSCeewji9SAWR0cXdu0zM8xLGrZwbPKi5TPbi6O4/U/pGpmu6ZdE86qTz63t/nnD7dnc5U7vT55vatW/dX12fbtg1COLaknS9WKBRQLpfBGINhGMf8XJIkKIqCYDAITdOgKEo7m0c45Wt1T26aJtLpNAqFAizLAgBsuCCINUNDeF1... | [
"50°F",
"40°F",
"55°F",
"45°F"
] | null | 1 |
science | grade-2 | classify-rocks-and-minerals-by-color-and-shape | true | false | Select the light gray rock. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAACdSUlEQVR4nOz96Y9tWXreif3WWnsezhAnxjvmzayBNZIsTi6yKbVbMmW1LLO71YIAqz/Y/mT4Q/8JDRh2w58M2IAN2JJht9ECadjslrsFUWpqINUSRLJIFmsecrhz3BjPvOe111r+sOPevFmVlSyRrLpZpXgSgZMR90TEiX3Ws9e73vd5n1c45xzXuMY13hfyVb+Aa1zjw4xrglzjGh+Aa4Jc4xofgGuCXOMaH4BrglzjGh+Aa4Jc4xofgGuCXOMaH4BrglzjGh+... | 1 |
math | grade-8 | transversals-of-parallel-lines-name-angle-pairs | false | true | \line{PR} and \line{SU} are parallel lines. Which angles are corresponding angles? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADSCAYAAABw17dKAAAic0lEQVR4nO3df1BV953/8dcFAkrIXKQxiKkRSORHIr00GoITCRdNXVzir+xudnYIP5ppZydbUm5ntm22OxG1szuTdmd7CbbpTrvxKjo72WZXwo+Y2oIXRU2B64IyYqR7RcyMEroIjSGF8OP7h1/vxCjRyLmcy73Px8z9w3vwfF5xcsbXvD3ncyxTU1NTAgAAAGCIMLMDAAAAAMGEgg0AAAAYiIINAAAAGIiCDQAAABjI7wW7o6ND27Zt09DQkL+X8pmamtIbb7yh/Px... | [
"\\angle{UTV} and \\angle{RQT}",
"\\angle{UTV} and \\angle{PQO}",
"\\angle{UTV} and \\angle{STQ}",
"\\angle{UTV} and \\angle{STV}"
] | null | 0 |
math | kindergarten | ordinal-numbers-up-to-fifth | false | true | The first picture is a boat. Which picture is second? first | "iVBORw0KGgoAAAANSUhEUgAAAaUAAABdCAYAAAAFZHluAAAcB0lEQVR4nO2df3AUVbbHv90zE5KQSSD8TiIKJiQZERDcJG4J5glJwQqCJD4FtCS4GrfqGWIJWOuChpX9IWZ9JFolQSTs1gqoCbsrKL4J+KJY9SYWPCLyJvz0wTpJUDCPZCCBzEz3+6Mzk5lkfvT86JmenvOpsiTdt/ve+f5xTp97zz2X4XmeB0EQBEHIADbSAyAIgiAIO+SUCIIgCNkgmVO6ZuEx5T96cM/nZlyz0AwhQRAE4ZuAnNLfOy3YfPqmV2fTfNWKi70cWrt... | [
"crab",
"boat",
"bucket"
] | null | 1 |
math | grade-2 | purchases-do-you-have-enough-money-up-to-5-dollars | false | true |
A wrench costs $2.64. Do you have enough money to buy it? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAGyCAYAAACRCbB0AAEAAElEQVR4nOy9eXgkV3nv/xlvVNvGPkW8dAXbzDFLKBmCuw2O1YBBbdY2GCIRFol15ABBk7CMyONkZAhYw2WRgAQrgWAZLngE/HwlMLbbdgI9kBtaYet2CEyBwT4TllTjAOcYMF3eqN8fp6q6WyPNgg2e69T3eWZUXXX2pep93/Mum+I4jsmRI0eOHDly5MiRI8cDAofd3w3IkSNHjhw5cuTIkSPHfYecwM+RI0eOHDly5MiR4wGE+5zAN3fFyBt+TqnxC8xdufZPjhw... | [
"no",
"yes"
] | null | 1 |
math | grade-2 | compare-sides-and-vertices | true | false | Which shape has fewer sides? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAALgAAAC4CAYAAABQMybHAAAGwUlEQVR4nO3dz3IUVRiG8XcmIYEIUpYUmZSanXoJXADlUiquvT7XUri2yjV3gLiKWplYupBAYGKGdtGckIRMZqanz5/vO89vRSosztAPh8M3051B0zTN+ET67Vg6mkqnjQCz1gfSnTXpyy1pe0MajCdN8/RF7mUB/XvwsbT+/Lj9YmdD+vqjtn7AqqOp9OyVdHAi/XosDV+ctt8gbnhwZ61tWZJeTqXh9Nw3AA9Cy/810jDvUoC4CByuEThcI3C4RuBwjcDhGoH... | 1 |
science | grade-7 | identify-rocks-and-minerals | false | true | Quartz has the following properties:
found in nature
fixed crystal structure
solid
made of a pure substance called silica
not made by living things
very hard Is quartz a mineral or a rock? | "iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAABPGElEQVR4nO29SZMkyZEu9pn5Fh575FqV1egFPUBj8CAQzoEy4IUi7zYyv5An3vg/5jBCEb5HAUl5I1gG6EY3ursql6qMjD18M+PBXM3VLT0isypryQJcRaIqMnw3N1X9dDWhtdZoqaWWGkl+6BtoqaXHTC2DtNTSHmoZpKWW9lDLIC21tIdaBmmppT3UMkhLLe2hlkFaamkPtQzSUkt7qGWQllraQy2DtNTSHmoZpKWW9lDLIC21tIdaBmmppT3UMkhLLe2hlkFaamk... | [
"mineral",
"rock"
] | null | 0 |
math | pre-k | addition-sentences-up-to-5-which-model-matches | true | false | Which shows 2+1=3? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAABKCAYAAAAi2W96AAALH0lEQVR4nO2dS2wd1R2Hv3Pmde/ch53YIY4DDiJxQpLSJq2aB5AdgtKXhFApQgh1wQ5VCFXtostuKtFFhdoF6q5dtJQKVS2UbrqCUihqJSSgUZwQlJfjPOzYvs+ZO3NOF2MnvrFj32vfub53mE+y/Jg558zP5zdn/ucx5wqttZ7y4UwVSiEEmpSUnsMUUDBg3IXtNogpT+sP5zf7slJSWudoEczT1eiXHTbsy0WuTknpNUohnKrAZR8mqiDng+hAatqUXqZgRB4... | 0 |
math | grade-8 | identify-similar-triangles | false | true | Are these shapes similar? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEBCAYAAABCCtJ/AABKFUlEQVR4nO3deVhUZf8G8HuYGXZZZMeFRQVRodxJcUGtrDSzn5qWvolp4Y77gprljobmEi4pLdabC5XaYiliioaWywsIBIqiKDsMyD7A/P4YGSVQUQcOM3N/rotLOOfMme+psJuH5/s8IoVCoQAREREREamFntAFEBERERFpEwZsIiIiIiI1YsAmIiIiIlIjrQvYfn5+MDc3r3U8PDwcIpEI27dvF6AqIiIiItIVWhewY2JiYGJigps3b9Y4HhgYCGtra3h6egpUGRE... | [
"yes",
"no"
] | null | 0 |
math | grade-4 | elapsed-time | true | true | Look at this clock:What time will it be in five hours and forty-two minutes? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADICAYAAADSmpa3AABRMklEQVR4nO39e3zT9d34/z+SpkmaQ1soNC2HFuwBNw4FJqgTUDcREXBugKJul0xw+10DFXZtUzf8XLs+4sRd10RQ9rl+l+CF21CYZR44D0QFnCCOswdoORWhSUuhad5pk7RNvn+8ado06Tk9P++3G7cmr/fplZA/nnnl+X4+NYFAIIBoH1XF4M0Dbz74LoHfCdUK+JXav3UfV5eCRgcxCaC1QIxF/VvzWGOGGCvE9AH9ADBcB/oM0PXr7FcqhBBCCCGu0UiA3VZV4D2... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA7gAAADgCAYAAAApDMpcAABrGklEQVR4nO3de3xT9f348VfSNE1zaQulTculBXvBKfeJogKKExEFdAMmoptssu27gQi7qZv+pl9w6vb1Asq+23fgcArCwKncRMEb4ARx3EQmtAiUS28UmiZpk7RNfn+cJm2a9J5LL+/n49FHms85OeedkE95f875XFSAByGEEEIIIURIeDweilyQXwnWWqiRbFuIsNGowBQDOXowa0GFNHCFEEIIIYQImSKnh88qoh2FED3PNQmgiXYQQgghhBBCdCd5lcpjuhY... | 0 |
math | pre-k | fewer-and-more-compare-in-a-mixed-group | false | true | Are there more triangles or rectangles? | "iVBORw0KGgoAAAANSUhEUgAAANgAAAA2CAYAAAClblcfAAAEpElEQVR4nO3dQW/aZhwG8AcbJwZMGJEJiK09tlKkTZs0qdVuu+8+abd9ix37OXbZruwY2pvRDkVJpyC1WqJKoTciVSobmhyIQ4iQdyA2pEANgRfD6+d3QsEhf8d6YvLY2DHXdV0QkRBK2AMQyYwBW5BVsmGV7LDHoDUVD3uATdY466FWuQQAPPo6gYePt0KeiNYN92ALePH7fxMfE3kYsHuqHrRht/qIawrimgK71cexdRn2WLRmGLB76DoujisdAEDxQQbFBxkAQLV... | [
" triangles",
" rectangles"
] | null | 1 |
math | grade-2 | select-three-dimensional-shapes | true | false | Which shape is a cone? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAANf0lEQVR4nO3dXWxb53nA8f/7nkOJoijTEmXPih1LrWMXSRe7SIfZATZ3q1OgSJABKdKiwOqiF01zMWwYhuxi6xasS4dgQIEFLQa0w7aLOMMCbEDQBG0KrEmQoljrFCsiu03mSE4s24k061uiKH6cc95dHJEiLTkW5Y+jh3p+QEDy+NB8nPz98vCQVIxzzk1UYLQIiyEEDqW2HN9AjwcHM/AbHWAmys69sZD0WEpt3NEd4I8U4xsDHfCx7rhqpbaaxRDOLcF4Bd4... | 1 |
math | grade-8 | make-predictions-with-scatter-plots | false | true | Based on the scatter plot below, which is a better prediction for y when x = 3? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFhCAYAAABK/t0lAAAfsElEQVR4nO3dfXCV5Z038F8EJbwUwpsCKknWjiZhkWDcXaFTCDrdbqtMFbtju0LVKsoytGo77XSm7m666+rquIrMdttVfBDt7uPWVeq6rS87amqfGtox9uALQW1Ngi5hq5aAmA0WPM8fPuYpL0HMuXLuvHw+f3HuK8nvm3GG8/Xiuu9Tks/n8wEAACRxVNYBAABgKFGwAQAgIQUbAAASUrABACAhBRsAABJSsAEAICEFGwAAEipawe7u7o7u7u5ijQMAgEwUrWDncrn... | [
"10",
"0"
] | null | 0 |
science | grade-3 | identify-rocks-using-properties | true | false | Select the one substance that is not a rock. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANcAAAEGCAYAAAD2aACLAACcaUlEQVR4nOz9SZekSXaeCT4i8s062uxDuMeYQ4EJAgTAwyoQYLNOsVjFBVf8G1xx1Yvuf8C/wlWdw+5e8PBUd3V1EVUgWMSQzMiMzBh8tFHHbxaRXsgnomruHhmJiPAcAJM4FmZuqqbDp3Ll3vve975X/O9La783gonibt2tu/U11lrDj7bwvIWDCP5o7n4v7wzrbt2tb7YmCr43cj9v9O738s6w7tbd+ubL21Fnd7+Tv5qXcrfu1t/8dWdcd+tuvaV1Z1x3626... | 2 |
math | kindergarten | fewer-and-more-up-to-20 | true | false |
Which group has more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAE4AAABOCAYAAACOqiAdAAAC20lEQVR4nO2cv05TURyAv3P/tLSABdQiQSMmKI/A5Oxb+AhOujvgE+ATGFcdHGRwENxkZCBiGXQw4kKESqGF63G4NppImnBsz/n9kvNNbW7D7+TL4dL7JRxjrbV7PdjtQLuAM0vkHDIDkyncrsNsBcxe19rNw9DL0sXyJchanfLNXAWWxkurkX9pF7BzBF978LEDyeFZeSFKG8xkWjoC+FFAUvx1ITKYvqNTC0nYpeglinMkinMkinMkinMkinMkinMkinMkinM... | 1 |
math | calculus | identify-functions | true | false | Which of these relations is a function? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAATIAAAE3CAYAAAApC812AAAbsElEQVR4nO3dfXRT5eEH8G+Spk3Tt0CBFgoirLaRIW0FRgs/0OPZ0Kqdgnbs5Zzt6MANdXPqprgpyEERPUyd8jI35xT/UBQ9CCqICkNeWpBCgAKlvFYoFIqQpG83aZL7+yPtTSK19CU3N0/6/ZzTAzdt7n16k3z7PM997vPoZFmW69zA0WagwQt4ZBARRbU4HZBiAK4xAxnxgK7OJcs7nVoXi4ioZyakAnFHmv0bg+OB3CR/yhERRbMGL3C4CTjrBqqbAb3T4/8... | 1 |
math | grade-7 | identify-equivalent-linear-expressions-using-algebra-tiles | false | true | These tiles represent the expression
–
7x+8+9x–2. Which expression is equivalent to
–
7x+8+9x–2? | "iVBORw0KGgoAAAANSUhEUgAAAngAAABoCAYAAABi3o2IAAAMuUlEQVR4nO3db2wU953H8c/MrL2G9T/i2GBYJzFpQjG9IzgHTk0TpQHSP6dU17oPqirpPbg8uFOPXpWC1Gu5J0gJpYm4PDge5JRr1JNOVyIcpN7lTgpxRYls60hrjl6MkwPTtezYy9qVLcdre+2dmXvgyoKLU2B3dnZ29v2SLHlW8Hv/nmC+npmdNVzXdQUAAIDQMIu9AQAAAHiLAQ8AACBkGPAAAABChgEPAAAgZBjwAAAAQoYBDwAAIGQY8AAAAEKGAQ8AACBkIsX... | [
"16x+6",
"15x+7",
"2x–6",
"2x+6"
] | null | 3 |
math | grade-1 | flip-turn-and-slide | false | true | What has been done to this letter? | "iVBORw0KGgoAAAANSUhEUgAAAPoAAABkCAYAAACvgC0OAAAIhElEQVR4nO3dTUwc5x0G8GfX7IcX2GxToCZgJ7bV2KSOsOuQ2FVkDw2xfaispo0PUXJg216SQ3Op6qoy0loOlaqqlx586CEgNZYPTSvXjSqFEAi92A75WGqCHSVgUgOyWQTrJeD9nh7C2kA97Muys/PuvM9PQjLsu3/eXc/jnRnP/F/H4cOHdU3TUAwDAwPQdR2sV3i9/v7+otSymqZpUr/PqtWr0DQNoVCoKAVPnz4NXddZbwP17ILblVz1nEWpRERSY9CJFMCgEym... | [
"slide",
"turn",
"flip"
] | null | 2 |
math | grade-1 | ordinal-numbers | false | true | The first picture is a sun. Which picture is fourth? first | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABdCAYAAACfMRFHAAAolUlEQVR4nO3de1xUZf4H8M/DDDI4CIiGOpZ3NFsNLLUsQU0r3V3TytTsV1pu2q6Jedlt0y0lNatVKzVT85ZtW2lZRhtpmpLW2oKBl7JEzUuCUiLIwAwMw/P745krzOXMlZk53/frtRvMnDnn8cvznPOdc54L45xzEEIIIYQQQvwiqqkLQAghhBBCSCShBJsQQgghhBA/CliCXW7g6LzzKvp8WYlyA/VCIYQQQggh8uBVgv1xiQFZP+pdJs77fqvDmep6FFYY8eihaq8... | [
"tractor",
"sun",
"barn"
] | null | 1 |
math | grade-2 | read-a-calendar-ii | false | true | What date is 8 days before October 25? | "iVBORw0KGgoAAAANSUhEUgAAAssAAAGvCAYAAACthZgKAABeSklEQVR4nO3de1xUdf7H8RcDchEF5O5dvKKG5i1TJDaztEwrc91y220rK7ttra3mulvZmvlTqy1ry3arNS3TzC1RczFtQcXLesULqCgqIioKAnK/zPz+QEYJjg4JDEPv5+PRo5pzZvjMZ2bOvOd7vuccJ4vFYtl0qIStSSWk55gRERERkesX6GXi5i5NGNKtib1LkevgtPFgsSU108KtN7jg7AwWi71LEhEREXFsTk5QVgb/3V9M6xYmIkJd7V2S/ESmrUklDA1zwWR... | [
"October 17",
"October 18"
] | null | 0 |
math | grade-5 | multiplying-fractions-by-whole-numbers-choose-the-model | true | false | Which model represents the product 4×
2
3
? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAT4AAACOCAYAAACohWTxAAAE20lEQVR4nO3dv2vUdxzH8ffFH+BF26FS6dBuVVCoo9AKZurmP9BBMP+D6Jgx/SdU0v+g4p5AXNziICR2MO1QpXExJqj1+HY4ru1Qjnr5JDnyejwWDYG3R17wRMjw6XVd1714X/XLbtX2oOpDVwBHyvFe1ZljVV/3q86drOq9eNd1j18f9scCOBhXPqk6/mx3+MUXJ6suzA6rCHCUbA+q1neqfn9ftbFbNfP6w/AbogccVWeODRtXVfVmUDUz+Nc3AI6qUeP+7Kp... | 0 |
math | grade-8 | identify-congruent-figures | false | true | Are these shapes congruent? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD9CAYAAACGLQCpAABqL0lEQVR4nO3deXiMZ/fA8e9kX2SZJMS+RCR2tZfaxS6IpQhadKGoUtrqQhdUeato1fJrkWrRhtr3rUrRoA2JJbHEEkQi+ybrzO+PMKSJSGKSZ5Kcz3XlejvP3PM853kxOXPPfZ+j0mq1WoQQQgghhBB6YaR0AEIIIYQQQpQmkmALIYQQQgihR5JgCyGEEEIIoUeSYAshRAnm5eXF4sWLsx3LzMzE0tKSGzduKBKTEEKUdZJgCyFECRYQEECjRo2yHQsODsbU1JQaNWo... | [
"no",
"yes"
] | null | 0 |
math | kindergarten | count-money-pennies-through-dimes | false | true | How much money is there? | "iVBORw0KGgoAAAANSUhEUgAAAUAAAACICAYAAACWXDLHAACzIklEQVR4nOy9d5ScB3n2/Xvq9LqzvVftatV7t+VuY2NaIIaA6SQkgYQ0kryBJORNckJCCEleSOhOAGPAAtxwtyVZXVrV1WpX2l1t77PT5+nfH6Od2F+ai4wkvNc5OpZkSTvX7Mw1d71uwXEch0UsYhGLeANCvNIPYBGLWMQirhQWBXARi1jEGxaLAriIRSziDYtFAVzEIhbxhoV8pR/AlYRjW+SyWTKpJOlUksT8PNn5WTJ5DQEIRqIEwiX4fT7cPh+hUBhFVREEAQT... | [
"17¢",
"13¢",
"12¢"
] | null | 0 |
math | pre-k | ordinal-numbers-up-to-fifth | false | true | The first picture is a house. Which picture is third? first | "iVBORw0KGgoAAAANSUhEUgAAAaUAAABdCAYAAAAFZHluAAAfAUlEQVR4nO2de1RU57n/v3tuyGVmRCggMhExKiKgqYpKUqUngNrGu4lR23qM2tjYqlGjXeeXqGR5zopGrXo8DTlqMQmakGC0MVcwLTYriFGPBBS8BIIZRUicGIabc92/P0bGAeay9569Z/YM72ct19KZ9/KAz7Of/V6e56FomqZBIBAIBIIIkPhbAAKBQCAQuiBOiUAgEAiiQTCn9JOJxpDP9HjkH634yUR2CAkEAoHgGU5O6cRtE/Ku3HPrbMrumNHQYUVliwVLL3R... | [
"dog",
"paw",
"house"
] | null | 0 |
math | precalculus | identify-graphs-of-continuous-functions | false | true | Is the function f(x) continuous? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH3CAYAAACBwSh7AABqpElEQVR4nO3de3hT550v+u/SzfJdxja2A9hACCQmNgkEEgiEpNCECQ0ttJmks9M0s6c9e7qTprP3dE47PW3PmYbJ0zNt2qdt2sme3UyuPdNJ2jQXiENIIUDsEIMBg83NGHzD+CJbknVdS0trnT+MHQQGZPy+lmx/P8/DgyWt9dXPsrT0W6/etaSYpmmCiIiIiIiEsCS7ACIiIiKiyYQNNhERERGRQGywiYiIiIgEYoNNNIXs2LEDs2fPxvr165NdChER0aSl8CBHoql... | [
"yes",
"no"
] | null | 1 |
math | grade-3 | coordinate-planes-as-maps | false | true | What is at (3, 5)? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAETCAYAAAAMFHHvAABbZUlEQVR4nO3deXyU5bn/8c+zzJLJziqyKIoogqJEcUdExWoVbMWKrVZb19qqrfupbU9bOVV7rFr7s7bW5VSttnVfsBUKFVypRgQEFWSHsGVPZn+W3x+TjIQkkIRASPi+X69HZr2fe0Jwrrnnuq/L8H3fR0REREREOoXZ1RMQEREREelJFGCLiIiIiHQiBdgiIiIiIp3I3vrKJ598wsMPP0xVVRWHHHII119/PXl5eV01NxERERGRbie7gl1fX89vf/tbrrrqKh599FF... | [
"garbage dump",
"dry cleaners",
"flower shop",
"gift shop"
] | null | 2 |
math | grade-3 | coordinate-planes-as-maps | false | true | What is at (4, 7)? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAE7CAYAAADn6/a0AAB/WUlEQVR4nOzdeXxU5fX48c9z750lkx2SsO+CC4gICm4gIKLgWrXFVq11R1tttfWrrdhFbeve2lZtbau1itbW/pS6g6C4oyIqgsgOBgIh22T2u/7+GDISspDAhAQ879frmmRm7vOcDHFy8sxzz1Ge53kIsZclUyaRaKLF+6vrIvzuvXIAzhwzFMf1cDywXQ/HBdsFx/OwnfTjLdfjbws+4P8mH8ixg0owdK3ZcXVdo1tRfta/HyGEEEKIBkZnByC+njzPw7LdVh+Tk6h... | [
"car dealership",
"magic shop",
"science lab",
"train station"
] | null | 3 |
science | grade-4 | use-scientific-names-to-classify-organisms | true | true | This organism is an Iberian lynx. Its scientific name is Lynx pardinus. Select the organism in the same species as the Iberian lynx. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADMCAYAAAAGVtdxAAEAAElEQVR4nOz9d3gc1fn4f7+3N2ml1a606r1bsmVZtuXesQHbFNNsegmE3gkhIUBCKiQklNDBQKg2GBvjbuNeZEuyeu9dK2m1u9renj94rB+mkzjJ50vmdV26Lu1q98w5M2dG95y554woGAwGfT4fgUAAgUAgEAgEAoHgf4lYLEYqlf63q3FGiYXgXiAQCAQCgUDwvyoQCODz+f7b1TijxEJwLxAIBAKBQCD4X/Zji4fF/+0KCAQCgUAgEAgEgjNHCPAFAoFAIBAIBII... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA6IAAADMCAYAAABp7h4wAAEAAElEQVR4nOy9d5wkVbn//z6nqjrNTE/OOzO7s2E258QucQEJkkERUBAwIlcFFe+9BkS8JrwmUC+ICiJKUpIgLCCw7C6weTanyTnP9HT3dHdVnfP7o3oGVkDAu1e/P+03r3ntdE93VZ2qU00/5/M8n0dorbXjOCilyJAhQ4YMGTJkyJDhXwkpJaZp/qMP46gihPhHH0KGDG+LzAShGTJkyJAhQ4YMGf5VUUrhOM4/+jAyZPiXw8wEoRkyZMiQIUOGDBn+lfln+z6... | 2 |
science | grade-4 | identify-living-and-nonliving-things | true | false | Select the living thing. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK8AAADMCAYAAAAF8vOBAAC4y0lEQVR4nOz9Z7Bl2XXfCf723sdf+2z6rCyXZVEGVQUPEJYGAJ1EUmJLpERJHTMKSTEt091qTUx0R8+HVmh6FOK0pOmWGbHZJCWKRjSiAWEIgGCBQAHlUN5lZWVWZr589ppzj917z4dz93nnJaEJCtkfeiL0Il7ky/fuPfecvdde67/+y4knJtbe1YOB4j99/aev/0N+zTS8nMLVElY8+MC4+b38T4L7n77+j/41UHBXr/l5rg9/L/+T4P6nr/9/+HJyWtnD33n... | 1 |
science | grade-4 | read-a-thermometer | false | true | Select the temperature shown by this thermometer. | "iVBORw0KGgoAAAANSUhEUgAAAdsAAASLCAYAAADdzBdkAAEAAElEQVR4nOydd3gTx9bG35Xl3iu4AS6YbkyH0HtPhyRAEtKTm0oKpPfe6/1SbxJCgNADoUPoxVTTi8EYsDHg3puk+f4wWlR2pd2VVrLh/J7Hz1ir3XnnzMzOmTNbxDHGGAiCIAiCUA2NuwtAEARBENc65GwJgiAIQmW4W1eClpEJgiAIQkUosiUIgiAIlSFnSxAEQRAqQ86WIAiCIFSGnC1BEARBqAw5W4IgCIJQGXK2BEEQBKEy5GwJgiAIQmXI2RIEQRCEypCzJQi... | [
"94°F",
"108°F",
"98°F",
"107°F"
] | null | 2 |
math | grade-6 | which-is-the-better-coupon | true | false | Which coupon will save Isabelle more money on a chandelier originally priced at $60? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAATwAAADMCAYAAADu4B+rAABAJUlEQVR4nO2dd3yb1bnHv5qWbXlvx3vF2XvvhAQISQgJq8wLLaNAWwrlAr1QKBcoHRRoS1ugUMZlhAQSZmgW2Xs4y4njGe895aV5/3AsrEiyJctypPh8Px8+wec97zlH0qufnnPOc55HYjKZTJVayGuDFgPoTQgEAsFlgVwCATJI94MoJUgqO02mg82XelgCgUDgXqYFgjy3reuPGCUM9+9SQ4FAILgcaDFATitUaOFcG0ib9V0XhNgJBILLjQBZl7YBaAwgNfS... | 1 |
math | pre-k | circles | true | false | Which shape is a circle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACbCAYAAACao4KyAAACg0lEQVR4nO3UMW5dVRhG0f8++7kICXQgGqoAQ8hgmB5MJjMISUcR09qJpTh+uhRXQe5j9pUea1Xn6DRfsXWWdV3X6/uZd3czt6eZh3Xgq10uMy8uZn5+NvPD1cxy/WldX9/sPYtz9urbmcu3d9vlx6uZX7/ZKoSvdXuaefNx5v39zJ93M4ebh+1BZDylFxdbUzMzH04zh9OjB3hKX5r6vM4c9p3C/4XQSAiNhNBICI2E0EgIjYTQSFzuPeCxz+9+m/X+r71nnIX... | 1 |
math | grade-2 | identify-repeated-addition-in-arrays-sums-to-10 | false | true | Which addition statement describes the array? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAByCAYAAABpy6akAAAMk0lEQVR4nO3dv2+TabqH8YvVLlokBhsKJEgkHAq8gsYgpFMQNM6Uo41Ic5oNwslfgCMtO92Js90sIzn/QV5WsM0UhJPRlGC0mQINm5giownSEBcJaDhSeM3JConGW1h2yEB+OHltk3mvTxnJfu5v99Wtx08O1Gq1GpIkSZIi8ZtuDyBJkiT9mliwJUmSpAhZsCVJkqQIWbAlSZKkCFmwJUmSpAhZsCVJkqQIWbAlSZKkCFmwJUmSpAhZsCVJkqQIWbAlSZKkCP223Qf... | [
"1+1+1+1",
"3+3+3+3+3",
"5+5+5",
"2+2"
] | null | 3 |
engineer | grade-7 | identify-independent-and-dependent-variables | false | true | Hint: An independent variable is a variable whose effect you are investigating. A dependent variable is a variable that you measure. Which of the following was a dependent variable in this experiment? The passage below describes an experiment. Read the passage and think about the variables that are described. Mariana w... | "iVBORw0KGgoAAAANSUhEUgAAAUwAAAE3CAYAAADBi3hdAAEAAElEQVR4nOz9ya8tWZbeif12Z2anuf315++5+/MIz4zMrGQmM5glZhaLFFSkJAgokYIESQOJoATUoEb8FwQNNNJA4qggQMX/oAQUCiyxJIoDKdkALHZiRHaRXTQe/vz1tzuNNbvTYO1t51yPTFJikfQUQAPua2537JjZXnutb33ft9Rf/at/NfNvj397/Nvj3x7/f3T8tb/2176W17UA//j//n8jhED2E1YbLs5OODs9wWrDNA1s9zum4Bl9YggenzJTjviYCSnSaot... | [
"the type of liquid used",
"the number of rusted steel squares"
] | null | 1 |
math | grade-6 | identify-complementary-supplementary-vertical-adjacent-and-congruent-angles | false | true | Which angle is vertical to \angle{1}? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEFCAYAAADZm5BpAAAdBElEQVR4nO3da2jb593G8ctqqnRROltrWafSEQcVyjYqp2vLhljnpBuop2HDCPbWWbXGVh82iIMPWaG1LW8M5kPn0NaHsSJXHtReE2oPNhBl1KVDBNYxR+uLeqs2lQ6UwkBKGqWpmsjPizZ+kjSKD5F06/D9QLGt/g+X7DdXftz3X1Wrq6urQlbLy8vas2eP6RgAAAAoERbTAYrZ0tKSxsfHTccAAABACaligp1dY2OjFhcXlUgkVFNTYzoOAAAASgAT7CxisZgWFxc... | [
"\\angle{2}",
"\\angle{5}",
"\\angle{4}",
"\\angle{3}"
] | null | 3 |
math | grade-1 | name-the-three-dimensional-shape | false | true | What shape is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAENCAYAAAA1yBIEAAApIklEQVR4nO3d2Y9c95ne8ed39lqapLhY1GJqoShKIsWdUSaT8cyFbzIGEuQmAhIECJDcBbnI3ARILuefmFzkauBYJCVR1EbZlCVb1pjyaFfoGcmOpCEHIWV2VXXt+zknF6er2c1uks1mVZ9avh/AsN2s7nq7mwSeeuo9v2PiOI4FAAAAYCistAcAAAAApgkBGwAAABgiAjYAAAAwRARsAAAAYIgI2AAAAMAQEbABAACAISJgAwAAAENEwAYAAACGiIA9Qy7/jz/oq3/... | [
"sphere",
"cone",
"cube"
] | null | 1 |
math | calculus | find-inverse-functions-and-relations | false | true | The graph below shows a function. Is its inverse also a function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AAB7CElEQVR4nO39e3Rb5Zk3/H9lSbZ8lmMntuNghxDikGCHHExISEhoKKFQoElLQ1vK0NJ2YEr7lnfe9umvb9v1lDK8nel0OqUUeJjpFCis1YE1lFMwIWmOdUoOJnGwQxxjEvkUyZZtyTpvHfbvj+3t2ImdSPa+vSXr+1kra8uK9uXLe0tbl27dB4MsyzKIiIiIiEgTGXonQEREREQ0k7DAJiIiIiLSEAtsIiIiIiINscAmohE33XQTXn/99ZGf33zzTVxzzTWIxWL6JUV... | [
"yes",
"no"
] | null | 1 |
math | pre-k | ordinal-numbers-up-to-fifth | false | true | The first picture is a bucket. Which picture is fourth? first | "iVBORw0KGgoAAAANSUhEUgAAAaUAAABdCAYAAAAFZHluAAAbS0lEQVR4nO2df3BUVZbHv+91d0hCugPhd9KCYEJCiwkCk8QpxayQFI4EkMRVUEvxV5yqNWAJWOsCgjA/lIxLolUCImGnSkBNmBlhxO2AG8ep2sSCJQLb4acD2klAMEvSkEC6+73946V/Jf3jdad/vPf6fKooyHu33z0d7nnn3nPPPYfheZ4HQRAEQUgANtYCEARBEIQDMkoEQRCEZIiYUbpu5TH5P7tx71cWXLeSh5AgCIIITEhG6c8dVmw8fcuvsWm8ZsPFHg4tXXY... | [
"crab",
"bucket",
"boat"
] | null | 0 |
math | kindergarten | triangles | true | false | Which shape is a triangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACJCAYAAADUvSEiAAACWklEQVR4nO3VS24UVxSA4dPtx4AAmYWwAAg7YAcsiUWwpCyBFYTHPGZqgyWMW5VBCSlzl/6OOt83qqsrHZ3Br7q7ZVmWq7uZz7czN4eZ+2Xgwc53M0/OZl48mnl2ObO7+r4s76+PvRan7PXTmfNPt+vh+eXMH7+sFcJD3RxmPnyb+ftu5uPtzP76fr0QGVt6crY2NTPz9TCzP/zrArb0s6kfy8z+uKvwfyE0EkIjITQSQiMhNBJCIyE0EkIjITQSQiMhNBJCIyE... | 1 |
math | grade-5 | parallel-perpendicular-and-intersecting-lines | false | true | Are these lines intersecting? | "iVBORw0KGgoAAAANSUhEUgAAAFgAAABrCAYAAADze0U3AAALCklEQVR4nO2de1BU5xnGnz1a4qXKwSCVoCLjGHUi8ZJIKmrUWI0xGY5BbRHvTWzR1BExCQqtt0qMiaaapEBIBEyCUswooiRgxECKCE5GQWhBiSIIGBC57Mousuy+/QPZsnBQFr6z998Mf8DhfN87z5x93+d837vnyIiIYEcyOFMHYO3YBZYYu8AdqG9swO74fUgvyGQyXl8mo1gJ78T8DZEp0VA+UOJe3C0mY9oFBhCbdhQ7j+3F7ZpyAMBvn54KfqAjk7FtWuDE7GQ... | [
"no",
"yes"
] | null | 1 |
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