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 | identify-functions-vertical-line-test | false | true | Look at this graph: Is this relation a function? | "iVBORw0KGgoAAAANSUhEUgAAAQ4AAAETCAYAAADH+ejgAAAT6ElEQVR4nO3df0xcab3H8c/QhZlhloLdC61ZTZds1yLLWhpbfqS5m05joghoamIxJppts03WCPGPmrXxD6pb12zNxpiUavWPsur9Q5rV2wQ2bdTbaaIJP9ba0aV7p6tXqMaUQtwOpTMMUJj7B84MByjtMwxz5sf79c/OORyefQLsZ5/nOc85X0c0Go0KAAwU2N0BANmH4ABgjOAAYIzgAGCM4MCqIpGIIpGI3d1AhiI4sCq/3y+/3293N5ChCA6sqr+/XwMDAw/8eld... | [
"yes",
"no"
] | null | 1 |
math | calculus | describe-linear-and-exponential-growth-and-decay | false | true | How does g(t) change over the interval from t=2 to t=5? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAAByS0lEQVR4nO39e3xU9b0v/r/mlmRyD0lIQiDBgESBXAARQahY3equ1lNo98G622orWmtVtHZ397tPd7+n/Xnc/Z2K9wv1bs/po911F91bMVIUFBoUJJJAgkIIkAshl0kmc591mbW+f9BJM+E2A+uTmcm8nv/wyJD1nnfWZ2bNaz7zWWtMuq7rICIiIiIiQ5jj3QARERER0WTCgE1EREREZCAGbCIiIiIiAzFgE1HUPvnkE1xxxRVQFAUA8Pvf/x4HDx7E/Pnz4XQ649w... | [
"g(t) increases by 1",
"g(t) increases by 4",
"g(t) increases by 300%",
"g(t) increases by 3"
] | null | 3 |
math | grade-3 | open-and-closed-shapes | false | true | Is this shape open or closed? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABkCAYAAAC8REciAAAODUlEQVR4nO3de3zO993H8XeunESCIErTNXSmqTrcKRlRmUPXUHqgIaZqd1e9q0MeWjR1WDtdT2io3kT1cC8by1SFrFqyKcoqSWNiRbhR06JzTCpBEjle1/7gqmwOzeF3Xb/r8Hr+ncf3+/b76+37+Fzfr4/NZrMJAAAAgCEsZgcwwubdOfp0T47ZMQAAAAD5mR2gMcorK/Rs6mtakpkmSZo0dKxSfvkbk1MBAADAm/m464jI3qMHlTA3UQeOf6WWwc0lSUWl59WtfaT... | [
"closed",
"open"
] | null | 0 |
math | grade-6 | classify-rational-numbers-using-a-diagram | false | true | Use the diagram to help you answer the question below. Which of the following is both an integer and a whole number? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEuCAYAAAC08GWcAACGCUlEQVR4nO3dd3hUZdrH8e/0kt5pAVLovaOIgIAooIKABRRd7CuubV11XV1dUV+7rm3tBRQUUEBRESwU6b33Gkp6mclMpp73j5MMIF2STMn9ua5cmUwmk2dSzvzmOfdzPxpFURSEqENyHX4OlfsoqvBT7lFweP04vQoOj4LDq6iXKz8OXK663uM/yXUKNo/6bxSl12DWazDrNJj1YAlcPvr+j9dZKq+LM2mJN2lIMGlJMGuJN2lJMKnvY42aIP/UhBBCCHG2NBKwRaQ... | [
"–94",
"190",
"–75",
"– 3 5"
] | null | 1 |
math | grade-5 | compare-fractions-and-mixed-numbers | false | true | Which number is greater than the one shown? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABkCAYAAAC8REciAAACwUlEQVR4nO3WsW1UQRhG0VnLuWnBIjaiAVdgiZycHggcW6IHCiBHcgXbAZBDC1QwpCTedXDZeXjPyVYvmF/6gr27OeccAABA4nKMMT5+/jZ+/Pq9+pazdnN9NT59ePPkdxutZ6PtO7YRAJzCxRhDFGzA95+HN7DRejbavmMbAcApXP794/272yVHfPm69/4zrb7x3N9/jseHNTfe3e838f7/sBEA/EsXqw8AAICXRGADAEBIYAMAQEhgAwBASGADAEBIYAMAQEhgAwB... | [
"2+1/3",
"1+2/3",
"1+1/3",
"3+1/3"
] | null | 3 |
math | precalculus | determine-one-sided-continuity-using-graphs | false | true | Is f(x) continuous from the right at x= – 3? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAACIOklEQVR4nO3de3gU15kn/m/fW/cWEkhCWJK5CYMBIRtzMeISHNuYxGOwHexMkrHjTcZOnDh5dmc2yXjz25m1PZ6d3OzYnkx2SHBms+PAxCaxQRBswChgwAgkkLgJGUkI1JJaUkt9r66u+v3RalniqkZ11Lfv53nyOGp1vTpUdVW9dfo95+hUVVVBRERERESa0Me6AUREREREyYQJNhERERGRhphgExERERFpiAk2EY2we/dulJWVYe3atQCAz3/+83jnnXeu+t5gMIj... | [
"yes",
"no"
] | null | 1 |
math | grade-6 | classify-rational-numbers-using-a-diagram | false | true | Use the diagram to help you answer the question below. Which of the following is an integer but not a whole number? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEuCAYAAAC08GWcAACIDUlEQVR4nOzdd3xT9frA8U920qZ7saGDKXsrIiIqiqgo4AAnXr0O3Ot6vW7Un1uu47oH4AQUUFQElb2RvUcZBbpnmjTz/P44baCypc3q8369+kqapMk3aXvOc57zfJ+vRlEUBSEakDy7jwOVXoqrfFS6FeweHw6Pgt2tYPco6vXq7/3Xa253+45ym0KFW/03itZrMOs1mHUazHqw+K8fuvzrbZbq2+JMWuJNGhJMWhLMWuJNWhJM6mWsURPkT00IIYQQJ0sjAbaIFMV... | [
"176",
"58",
"25.6",
"–140"
] | null | 3 |
math | grade-3 | compare-area-and-perimeter-of-two-figures | true | false | Which figure has a greater perimeter? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAIgAAAB6CAYAAABk4BtAAAAOp0lEQVR4nO2deXBT5frHv2mWLnSDWEonYCu09cZqbQGh0FXLoq0FKSJLhSKXpS3UBlt6aaGLtLcyikspMEgH0IoCWgRr21GrgxNmdHLHJaMYBm+w0ygGf/lpBgLREMK5f4Qc04GmW855T5LzmenQ5izv0/J5T3KS93keAUVR1KXrgNYMmGzADQo8PoxIAIQIgbggIFICCC5ZKOo/V0iHxcNFZoYCov+a7T9ESYB7x9jt4fFdTDbg/DVAfx340Qz4Xblh38DLwQP... | 1 |
math | pre-k | fewer | true | false | Which group has fewer? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHIAAACGCAYAAAAB3t5yAAAaYUlEQVR4nO2dWYxk13nff+fcrfau7q6ZXmdfyeEyorivJkWRgihKMmSSERLFEeLAeUkAGQbyECAPRoK8BAYC5MXZbSCWLSeGYoaiRVo0ySFlc5sZDily9hnO9DrdXd1d+6177zl5uFXd1TPd092jW+SwUP+X7qq6957lf893vvMt5wittZ6qw9kKFAPwNV18CWAKSBuwLwEDNogpV+t3C190tbr4dXBfBswzlfDDkA0HkiHLXdz8KAZwqgyTdThdAVnwwx+6JH6... | 0 |
math | pre-k | light-and-heavy | true | false | Which is heavier? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKgAAACoCAYAAAB0S6W0AAAaG0lEQVR4nO2de3BcV52gv3Pu7fdLj9bbsuVYduwkToIZEpLwSrIwEBKYGiop2JkFBnaH7P6xWws1tbVQtVW7S9XuVAG1f0wNLDMwDBmWqbA1D0iykwfJkEAyBDJxHiSxYzuyLdmy3t2tft3X2T/aUiyr1WqpW+rb8vmqVJL63r73J+nTed3fOUcopdSkBScKkHPBUWg0LcMUkDBgfxT6giAmy0o9n211WBrNam5OgvlmofLNQBCujlXs1WhaRc6FY3k4b8HxAsi... | 1 |
math | algebra-1 | domain-and-range-of-absolute-value-functions-graphs | false | true | What is the domain of this function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABlDUlEQVR4nO3df3RU9b3v/9dkZvIbSEgwwWCCCKIgAVFAECoWqlZbW7AW29sf9npujz39vda3d/X229NzTpfH2+89pz3fem1Pr/f2VD3f3mvrqdoKBoqCQoOCRAgQEGPAQMD8/jWT+bFnZu/vH5xJE/mVCfvDZJLnYy2XK5PZr7zZe+Yz79l5Z4/HcRxHAAAAAFyRle4CAAAAgPGEBhsAAABwEQ02AAAA4CIabADDVFRUaNeuXYNfHz9+XNOmTVNzc3MaqwIAIHPQYAM... | [
"all real numbers",
"$\\{x \\mid x>3\\}$",
"$\\{x \\mid x \\geq 3\\}$",
"$\\{x \\mid x \\geq 0\\}$"
] | null | 0 |
math | kindergarten | count-scattered-shapes-up-to-5 | false | true | How many squares are there? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEGCAYAAAAQUuEXAAAFwUlEQVR4nO3dsW2DUBhG0ThiD8ZDYiAkxmMS0qaMLVsPbs6pH9JXXv0Nj/M8zy8AACDhe/QAAADgfQQ+AACECHwAAAgR+AAAECLwAQAgROADAECIwAcAgBCBDwAAIQIfAABCBD4AAIQIfAAACBH4AAAQIvABACBE4AMAQMj0zOP9WD+1gxcs8zZ6AgAAF+OCDwAAIQIfAABCBD4AAIQIfAAACBH4AAAQIvABACBE4AMAQIjABwCAEIEPAAAhAh8AAEIEPgAAhAh8AAA... | [
"5",
"3",
"2",
"4"
] | null | 3 |
math | grade-6 | classify-rational-numbers-using-a-diagram | false | true | Use the diagram to help you answer the question below. Which of the following is both a rational number and an integer? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEuCAYAAAC08GWcAACHEklEQVR4nO3dd3hUZfbA8e/0mfQeWoCQ0Am9KSAgIgpYELCAosuqa8G1rauua0f92XWx94KKCgoIIkWl995L6DW9TabP3N8fNxlAOiSZkvN5njwzmUxm3plk7j333POeV6MoioIQtUiOzcehci+FDh/lbgWbx4fdo2BzK9g8inq94nv/9crb3b6T3KZQ5lY/RpF6DWa9BrNOg1kPFv/1o5d/vc1ScVusSUucSUO8SUu8WUucSUu8Sb2MMWoC/K4JIYQQ4mxpJMAW4aL... | [
"5/12",
"–45.6",
"–92",
"–35.3"
] | null | 2 |
math | grade-6 | identify-polyhedra | false | true | Is this figure a polyhedron? | "iVBORw0KGgoAAAANSUhEUgAAAGQAAABkCAYAAABw4pVUAAARDklEQVR4nO2de3QUVZ7HPwHllWj3iBhwPHTz1A1KNxo8iGI3HJiDApJgXEANScAZiLtuupew6rhsOsyuj93EFDurAUdNJzAOrA7dHAFdXOmKKIMLazqgWUEjFcYDZLM5VDYPQFlq/2irSUIn6Uf1y+FzTg6HdNWt2/XN/f7u795bdVMURVG4SsIwKN4VuEpPrgqSYFwVJMG4KkiC8SctSG1tLY8//jgPP/xwvKtyGeVPCFEUFYfDoVitVgXo8bN+/fp4V09RFEVJUZQ... | [
"no",
"yes"
] | null | 1 |
math | grade-8 | parts-of-three-dimensional-figures | false | true | In the square pyramid shown below, which lines are intersecting? Q | "iVBORw0KGgoAAAANSUhEUgAAAN8AAADBCAYAAABPJWXHAAAhfklEQVR4nO2dfVSUZfrHvzNMY4AZo7YQo+jgKqZYliZ02k3PiqK92R44GW2EnrbFNhPbrexVzK3QVkU3XbXOrm/V4Cam9iImap1MwDZfSaUU4mVggmBKYJCRmev3h795dpAZZmCe57mfGe7POZyjMw/3fY3w9bpfrvt7q4iIwOFwZEfNOgAOp6/CxcfhMIKLj8NhBBcfh8MILj4OhxFcfBwOI7j4ApiffvoJc+fOxbBhwzB48GDcfffdOHPmDOuwOD6i4vt8gUlbWxv... | [
"NQ\n and \nOP",
"OQ\n and \nMN",
"OQ\n and \nNQ",
"NO\n and \nMQ"
] | null | 2 |
math | grade-1 | two-dimensional-and-three-dimensional-shapes | true | false | Which shape is three-dimensional? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAATnUlEQVR4nO3daVDc933H8fd/dzkWll1usEBcOpAQEsiWbSHbsuUkju3WTtzEydRJnLTNZCZNO03aSZ80nU4zjdNp+yBOH/RBPbVSz2Q6PVzXbiNLVmJJtiV0SyCJS5xC4tyFXViO3YXtAwRmJVm2ZOAH7Oc1IyF+e/Bd/H/vrpf//rGi0Wi0NwSXx2BkCiJRRGSROCxIs8OGFMhLBKt3Mho9ETA9lkj8edANjpaxmU/uSYTy1Jk6RWRxjExBUxB6QtA8BrZAZOY... | 0 |
math | grade-2 | interpret-tally-charts | false | true | Bob made some cookies for his teacher. This tally chart shows how many of each type of cookie Bob made. Did Bob make fewer cat cookies or star cookies? | "iVBORw0KGgoAAAANSUhEUgAAAU0AAADWCAYAAABVJtDwAABRiElEQVR4nO29d3gc1dm/f0/bJmlXXbIsW3Lvjd5cgADBgE2JgYRQTEjjzUuABBJCIEDISxJSgYQfveUbamJsDASH4kIHG/eGi2TLkqy6q5W2z8zvj5FXWqyVVpJtFZ/7unRpd+bMnDOzs599nnOe8xzJfDTPRCAQCARd890a5L5ug0AgEAwkhGgKBAJBNxCiKRAIBN1AiKZAIBB0AyGaAoFA0A2EaAoEAkE3EKIpEAgE3UCIpiAlKtzHU3HFPrYt2I3PXtTXzREI+gw... | [
"cat ",
"star "
] | null | 0 |
math | kindergarten | are-there-enough | false | true | Are there enough leaves for every snail? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACgCAYAAAA2PRuAAAAimUlEQVR4nO3deZgcd33n8Xf1fc59a0YzkmZ0WbcvbHwRYsdebyCYMwETNpgl1+ZZ2M1uNtlkebKcSwJLAuySxJDHTp7NYSABQ7DAELAt2/KBJOvWSCNp7nt6evrurto/WhpJyMfIXaPprv68/pJmuqt/76nu5/l2d3W1YVmWhYiIiIiI2MK10gsQEREREXESDdgiIiIiIjbSgC0iIiIiYiMN2CIiIiIiNtKALSIiIiJiIw3YIiIiIiI20oAtIiIiImIjDdgiIiIiIjb... | [
"yes",
"no"
] | null | 1 |
science | grade-6 | 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 | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAC4CAYAAAAxDlOsAAAacElEQVR4nO3de3hV9Z3v8fda+753Qm6EEEIuXIMogqCgiBQYsV6KttNp1WltD72dquPMPON0ptPLaaf29DjWPuc87ZQ5nmnVCrZorQ53RawICAqCEIRIICQh9yu57ftlnT9WyD0hkp21dsj39Tw+kp291/7t/Pb67PX7rt9vbUXTNK0uBOd80BGFiIYQQsSFVYFkC8xxQ5YdlLqgph1uN7tZQoir3bJJYD3r03/ItkOhR08jIYSIh44onPFCbQhKfKC2R/RfSNg... | 0 |
math | grade-8 | apply-addition-and-subtraction-rules | false | true | The number line shows two unknown numbers, s and t. Is t–s positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAIf0lEQVR4nO3df0yU9wHH8c9zcOfJHQKl+KMTZjXOSnRIRRSj0SZtsmhNg3OJbom1cdrq7JZtTZxL5pLNuLo/FpdpoovdGhORbAmmcdJk65Kiy8ZPAXeTbaTlxLo60E3lgOPu4NkfcCdMRKzH83DH+/UP9zx3f3yS5+7hw5fv93uGaZqmgARWVlYmwzC0bds2u6PAIlzzqYdrDiCRpNodAHhS169ftzsCLMY1n3q45gASybgLdjgcVkNDg2pqajRz5kxGESxkBv2KtB2... | [
"positive",
"negative"
] | null | 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 = 21? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFhCAYAAABK/t0lAAAoAklEQVR4nO3df3zU1Z3v8XcSApNESaAS6EAhkKg0CRLu1I1WJQlXopXkQeh2+aG0QNAVWahwbS17r5VY95bqugheSmqxBnbvvStt3YRCHxZYl4He3QR1HjtI4vIrMFAyYKQkKCQTjMz9Q5ltTCYkcvL9Tiav51/MOcN8Pgetefdw5nxjgsFgUAAAAACMiLW7AQAAACCaELABAAAAgwjYAAAAgEEEbAAAAMAgAjYAAABgEAEbAAAAMIiADQAAABgUUQE7EAgoEAjY3QY... | [
"91",
"44"
] | null | 1 |
math | grade-4 | identify-trapezoids | false | true | Is this quadrilateral a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEOCAYAAACzXGCqAAAkR0lEQVR4nO3daXjU9b338e9MJkP2hUCCBAybIawhqCy1R8Va7bH2WL1vjxci4IZYEbwoi0hbb2srslWUFIpisYq2p4frsvVgbaUcC1hFLCRkIQQMhAgEEkL2jWQycz9AfmSGIevM/P4z8349+n3/zMz/K/Lgk7k+mTE5HA6HAAAAAPAIs+4FAAAAgEBCwAYAAAA8iIANAAAAeBABGwAAAPAgAjYAAADgQQRsAAAAwIMI2AAAAIAHEbDhU+eavpaVWTPkv4pe1r0KAAC... | [
"no",
"yes"
] | null | 1 |
math | grade-6 | compare-area-and-perimeter-of-two-figures | true | false | Which figure has a greater perimeter? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAALIAAABwCAYAAAC6qirXAAAK+UlEQVR4nO3da0xcdRrH8e/AjOXSERgucilLbAvb6QsdiQmNUG2ioys6FEuqUjSDbmuikXjjxS4aL/HF+sImkvZN3YQm3iIJpIlC0tQaKJhq6iWktJIChku10KAMt6HQoZ19MTuTpVPWcubMHM7p80kIMHOGeTjnx9N//+dm8vv9/vHLMDgPs1dgyY8Qa57ZBNZ4KEyC224B0/ii339qRuuyhFCu5FYwD8wHvsm5Bf6aHEi5EGvd7BU454Wxy9A/D3EzS4EnJMR... | 1 |
math | grade-7 | transversals-of-parallel-lines-name-angle-pairs | false | true | \line{OQ} and \line{RT} are parallel lines. Which angles are corresponding angles? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADSCAYAAABw17dKAAAb50lEQVR4nO3dfXBU5d3G8Ws3MSEEmwQQQ9AmmNSXRGABKUqRZCt06LRKwlQ7TC1ZKbaDZTTp1BZMFXxBxupItNVOW7CbGacdip3dljq+YjZNDG9ZWBCjVpJZEEtClAQxCSAkzx8+iYlJCGZPcvbsfj8zOyN7J+f++ccOF3euc2Lr7OzsFAAAAABD2M0eAAAAAIgkBGwAAADAQARsAAAAwEAEbAAAAMBAlg3YLpdLPp9vWK5dX18vm82mm266qc9ae3u7YmNjVVlZOSx... | [
"\\angle{QPN} and \\angle{TSP}",
"\\angle{QPN} and \\angle{OPS}",
"\\angle{QPN} and \\angle{RSP}",
"\\angle{QPN} and \\angle{QPS}"
] | null | 0 |
math | algebra-1 | multiply-two-binomials-using-algebra-tiles | false | true | Which multiplication expression does this area model represent? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADoCAYAAADVNpOBAAAT5ElEQVR4nO3dbWyV93k/8OscH4NjBwcSnBjDkhSneaAdKni0idJsU1s6qKJWU6QprSpVkfai0pq2iqK9QNteRtukPXVCjSJFU9duy5qmUyZt8WJltGRpaTJMaIA8UBxwi21sEmNjG/xwzvm/6L8UE2DC/pH73Mefz7vzs9B18RUSX/10n9uFarVaDQAAIIli1gsAAEA9UbABACCh0sUOe/tnYmi88n7vknvtrcXYfPOyi/5Mpgtz2UxHemJwqi/5zDXN62Nz29aamQk... | [
"(3x+2)(2x+2)",
"(2x+1)(2x+2)",
"(2x+2)(2x+2)",
"(3x+3)(2x+2)"
] | null | 2 |
math | grade-5 | is-it-a-polygon | false | true | Is this a polygon? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADuCAYAAAADb3CcAAAdqElEQVR4nO3daXNU5f7u8au7V0+Z042AAoGIGAwyo/JX0b3xX4ddHIqpkhwQ3tJ5dl4C00lSTIeiNltx1u3AjEGQUSZB6M7Q87B6nQct4t7bIZDuvnv4fh5SVK+rQlK5anH/frfLcRxHAAAAAErCbToAAAAAUE8o2AAAAEAJUbABAACAEqJgAwAAACVEwQYAAABKiIINAAAAlBAFGwAAACghCjYAAABQQhRsoAYlkwWd/DphOgYAAPgNlukAAJ7c0O6I7t3NyXGkVa8... | [
"no",
"yes"
] | null | 0 |
science | grade-4 | use-evidence-to-classify-mammals-birds-fish-reptiles-and-amphibians | true | false | Fish are a group of animals with similar traits. The following traits can be used to identify fish: They have fins, not limbs.
They make eggs with no shells. Observe the animals and read the descriptions. Select the one animal that has all of the fish traits listed above. Black howler monkeys have loud calls, or howls.... | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAp8AAACmCAYAAACcAuREAAEAAElEQVR4nOz9Way3W2LX+X3XeubxP+/5Hc98TtUpl102NgbcAWMnIBI1IEQIimmlL+GGa19EwjdcgBQJKVYC3VFCBBLQkG4ZOrgNnrBdHspVdeqcOsM7v3v6z///M49r5cJq1G/S6kTYPkeh/h9pXzzvltZ/6dXz2/un9exnLfFbe63fCiAyODg4ODg4ODg4OPhDkfbwSQ4i6bQ+FM+Dg4ODg4ODg4M/bGkPQmutv+iJHBwcHBwcHBwcfG8w/4cXP/8P/jPsXiI... | 0 |
math | kindergarten | count-money-pennies-through-dimes | false | true | How much money is there? | "iVBORw0KGgoAAAANSUhEUgAAAMIAAABECAYAAADTCOr0AABSPklEQVR4nO29d5ilV3Xm+/viybHOqZxzVeecW7mVJZJJNnBtkn1tYw8wxr7MDJ5xePzYY5vheoyHGQyIaMAIUEJqSR3VUZ1The6q6srx5PTl+8fpOkhjAd1CmJm5Ws9znlIfVTh7f3vtvda73vVuwXEchzftTfv/uYm/7A/wpr1p/yvYm47wpr1pvOkIb9qbBrzpCG/amwaA/Iv+A45tUSwUyGcz5LIZ0qkUhdQS+ZKGCAQiUQLhKvw+H26fj1AojKKqCIIAgvCL/nj... | [
"2¢",
"5¢",
"7¢"
] | null | 2 |
math | grade-2 | names-and-values-of-all-coins | false | true | Which coin is this? | "iVBORw0KGgoAAAANSUhEUgAAAMMAAADDCAYAAAA/f6WqAABzeElEQVR4nO19f0xT9/r/a5+0jB5GUTjElsQayxoxq7s6J8gdRvjij89YopK5m20uJtOPxiXm+s/VyKL742rGovcfb0xm9OqSZe4udy5Ok3kvIhfMdEid07vViOnoQk1oDYcqZT1ltMm+fxyeh/c5PS1FEX/cvRID0tKW9jzv59freT1P/frrr/gNDx7hcPi+3min0/nUZL2W32AOy8N+AU8SMl3wod4gIpEw/P7rCAQCutva2trT7l9fX8ffezweuN2zUVFR8avDOTP... | [
"nickel",
"dollar coin",
"dime",
"quarter"
] | null | 3 |
math | grade-2 | match-digital-clocks-and-times | true | false | Which clock shows six o'clock? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMIAAAB5CAYAAABr7P6HAAAIG0lEQVR4nO3dTYwT5x3H8a952USUeA4tJURYFYeWwPiaIm0uCCXRRlEv7GIfWwh7jPAqNLfuYnOIVO2LV+K2W0huzLK7h1YRqyY9dlPlbKOS9FINaii0lcaQJbtgpgdjy2vCMjOeFy/+fSQE1tr/57F3fn4ePM8zTrmu697egH+swb06PHIReeHtSsErO+Hne2D/AKRur7vuV7WkuyWSnGNp2PXNWuPGgQE4/KNGSkRedPfqcPM7+HYDvl6DHbVHjR8oBNJPXtn... | 0 |
science | grade-8 | identify-ecosystems | true | false | Select the tundra ecosystem. This ecosystem has:
long, cold winters and short, cold summers
mostly small plants
soil that is frozen year-round This ecosystem has:
long, cold winters and short, cool summers
many evergreen trees
soil that is poor in nutrients This ecosystem has:
a small amount of rain or snow
dry, thin s... | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAp8AAACtCAYAAAD2xRSHAAEAAElEQVR4nOz9ebw8R13vjz+rqrtnO8tnzx4SQhK2EENYgoQgISwXXFAw6JUgAoLyBQUNCIJyvXIxXEQwECJXJBDi5cJDBfxdUBFkCSGAwE0gLCEohOyf9WxzZqa7q96/P6qqp2fOnM/nk7AF0q88Oj3TS3VVdZ/PvPr13tS/L4uc2oN5Q4MGDRo0aNCgQYMGPxCsWri+D2qlFGmIZ4MGDRo0aNCgQYMfNFYtKBGRH3VHGjRo0KBBgwYNGtwzkNS/POZD4AREoFS... | 1 |
math | grade-4 | identify-trapezoids | false | true | Is this quadrilateral a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADCCAYAAABzAbXRAAAbw0lEQVR4nO3df5RU5Z3n8c9z69atan5II9CAOPgDElE02DQSg4jBaH6ROIk6unHyY9xdJ85OzmayzsmeE4/Zs8nqOZMzZzzZnZyYzZ41WXcym4zruE7ccWPiDxCNIt0goGgwqAkijUhrI1TdunWf/aPg3moRBLqqnqpb79dfz/Oc7qpPDIkfnv52XWOttQIAAADQEJ7rAAAAAECWULABAACABqJgAwAAAA1EwQYAAAAaiIINAAAANBAFGwAAAGggCjYAAADQQBTsLmX... | [
"yes",
"no"
] | null | 1 |
math | pre-k | select-solid-shapes | true | false | Which shape is a sphere? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAWTUlEQVR4nO2dTXAbx5XH//ONjwFIAqREyinCVWtqbUm7VZZcG/sg+aKtWHFyWPuQS5zLHuTr5hzfkrOv0WFP9iUHabeSiuRUJQdTh01SFlW1pY9E8lYZrDIJmQAoAIMB5qNn9tDoIUBCIiXOYGaA/l0kQSTQmP7Pm9evX78n+L7v12zgaxPoEMD1weEkDlkAChKwlgNOqoBQs3z/r+24h8XhHJ3vFwH5sUn/saIC/5inquZwkkaHAH/vAts28MgExLZL/4OLlpN... | 0 |
math | calculus | determine-continuity-on-an-interval-using-graphs | false | true | Is the function f(x) continuous on the open interval ( – 8,1)? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAAB75UlEQVR4nO3deXxU9b0//tfsM9lDEpIQSNjBQBIImwlEQVBR3MAFtHVpra3Wtb3tvf329vbe22v52dvaVqu29V4rerUuVBQFA4KExUQIBAgkCIQAWYDsyWTWc+bMOb8/0qREtgTOh8mQ1/Px8NFmMueVN+fMfOY9n/nMOQZN0zQQEREREZEujKEugIiIiIjoSsIGm4iIiIhIR2ywiYiIiIh0xAabiHrZtGkTRo4ciUWLFgEAbr31Vnz44YdnvW8gEMDVV1+N7du3X84... | [
"no",
"yes"
] | null | 1 |
science | grade-4 | identify-magnets-that-attract-or-repel | false | true | Two magnets are placed as shown. Will these magnets attract or repel each other? | "iVBORw0KGgoAAAANSUhEUgAAAjgAAADoCAYAAADi1J7wAAAsGUlEQVR4nO3deXRU5d0H8O8smZlMtpkkJEBYwh7CFjYJAhIVkFXFFcW6VH21b23rWmrb19Zq3WttK63W1h0RUQsuiCAom4IsIZBAIDFAEkISkswkmX19/wBSQvaZe+femfl+zuGgyeTeH+fcm/nO8/ye5yr8fr8fFBYqLDU4aq7AUVMFqqx1aHbbYPM4YHU7YHXbYfM4kVt0JzRePdwKJ1wKJ5wKB+x+O6b1z4ZeGwONRoEYjQIxMUpodQoYk9VIST3zR61WSP1PJCI... | [
"attract",
"repel"
] | null | 1 |
math | pre-k | subtraction-sentences-up-to-10-which-model-matches | true | false |
Which picture shows 10 − 3 = 7? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAgwAAABKCAYAAADXGAxXAAAVC0lEQVR4nO3daWyb933A8e9D8uGlm5JsnZYtW3JsxfIRx47czG7SNs3S5mjjpTUydCpWtNv6JsCKbdiLHW2xokCLYRiGrsPSaEO9dFmCpbmaLr1zMPEhy3fkQ7blQ4cl6+B9PnvxSCIpPhIpkbRk5fcBBJt+yIfPV4D8/+u5qGiapg2G4YIfPDGIagghhBDiI86iQIkZWpyw2grKYEjTDk0u9WYJIYQQYrnaXQqW8379Qa0VNhbpswkhhBBCfLR5YtDrg4EwnPO... | 0 |
math | kindergarten | curved-parts | true | false | Which shape has a curved part? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJsAAACaCAYAAAC+PTopAAACfklEQVR4nO3cPW4UWRSA0dttuwP+Jhs0CxiQ2AAZiydkAUgMk2NSGyxh3CqCEhIJWelrTc85UZWe9HSDTzd8u2VZluv7mX/vZm6PMw/LwCYudzNPL2b+fjTz/DCzu/62LO9uTj0W5+71s5nLj3frz1+HmZeP1xJhC7fHmQ9fZz7dz/xzN7O/eVgPhMbWnl6sXc3MfDnO7I+/HMDWfnb1fZnZn3YU/k/ERkZsZMRGRmxkxEZGbGTERkZsZMRGRmxkxEZGbGTERkZ... | 1 |
math | grade-4 | multiply-fractions-by-whole-numbers-using-models | true | false | Which model represents the product 4×
1
4
? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANwAAACOCAYAAABaHGZ9AAAH4ElEQVR4nO3dTWtcZRyG8WvSF4PVZhZqalGjC+tGCalKhm6SuAyKSym4F/wCggsXCoJfQPBjGEW7nFJbMio0tYbiC5TZ1JG6mKYmnbQNx8X4dNImaZPMOf/n7b4gkDRleODm19PJy5xaURRF5zb8uQY3N+BugVKqpA7W4MkD8PLjMH4Yap31ovhxxfexlEq/6aNw8I+1/gfPHoZXjvQ1KqXK6eYG/LYKf92G39dgZOVu/xPCplT5PXmgbwvg3w0Y2dj0CaVU+Tl... | 1 |
math | grade-4 | compare-fractions-in-recipes | false | true | Does this recipe call for more lemon-lime soda or lemon juice? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAGeCAYAAACuOnbpAABya0lEQVR4nO3deVxU9f7H8dcM+6YILiBqlrYqakppabmk5Ua5Xiut+KnXXXGv61JUanY1JdPcisxyzYVKM5dKvVZ6RcUl3BVXFBHZlH3m9wcxVwQUdJCx3s/Hw8fDmXPO93zOkZr3HD7newxms9nMn8xmMyaTiaysLMsfo9GIg4MD9vb22NnZYTAYEBGxNrPZTHZ2NllZWWRmZmIymbC3t7f8MRqN+v+PiIjcEwy5AdtkMpGdnU1mZiaZmZk4ODjg4uKiDzQRKRVms5n... | [
"lemon-lime soda",
"lemon juice"
] | null | 0 |
math | grade-8 | describe-a-sequence-of-transformations | false | true | What combination of transformations is shown below? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEyCAYAAADA5Kd8AAAb40lEQVR4nO3deZyVdd3/8bcbICKouTEKuO9KOG6paZbeLmXelm1mZaZJImVqaiott1pqrjfikrdlllqGGe6p/VzB9Yi45HKLCuQQaeIgy4DB/P4YZ26XYv3OOczM8/nPMMO5rs93nONjXl5+z3WWaW5ubg4AAFDEsrVeAAAAdCbLt/7hnm8+kdfHNlZ9AWvUr5LdLx1Y9bl0Hl8986A89sLDVZ+7/aYfya9OvK7qcwGApVtbYNcirpPktcqbqVQqNZlN51CLuE6SR59... | [
"rotation, then translation",
"translation, then rotation",
"translation, then reflection",
"rotation, then reflection"
] | null | 1 |
science | grade-3 | find-evidence-of-changes-to-earths-surface | false | true | This picture was taken during a volcanic eruption. What evidence of a volcanic eruption does this picture show? | "iVBORw0KGgoAAAANSUhEUgAAAX4AAAE4CAYAAABc25iNAAEAAElEQVR4nOz9W5bkuJIlCm4RAKQ+zMw9XufkyaysWp19P2qtXncMd0A1l5pCD6C/ej711XUrq+qcPBHh7maqShKA9IdAQJBGNTN/hXtEOnypK035AklQILJFZAv9l//yXwTf2rf2rX1r39pv3v7rf/2vX+S8HgD8n/8vAICIQEQ2l59qzFyXiWjxvV5+1CiX4+f3731pgfjJ9W3/t/onkjb7udxGHt2H+VhuuV0m5JyRUPYhV/cXESQQRKTuL6BH59g6X3st7bqcP/z... | [
"It is not raining.",
"There is smoke coming out of the volcano.",
"Some of the hills are covered in trees."
] | null | 1 |
math | kindergarten | times-of-everyday-events | true | false |
Ken is eating lunch. What time is it?
Choose the more likely time. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHQAAABzCAYAAABJnyafAAANNElEQVR4nO2deXAUVR7Hvz33xRwJOYGEJAvBLCQUuEYgeCSiVSKupWApka0tWU/WrVJTHiXWBtfaM+gelscqtaVitBRkS8ADFHZXsloBVxJCICQkJFyZDLnn6rl6/xiSTpuZyfQxSWd4n3+SSffv/d70N+/3zn6PYhiG6fYBbW5gOAgEGBCmESoKmKEE5hmADA1AddMMUz801dkiSEGpGVC1usMfsjRAoTGsNmH6MBwEWlzARR9wyg0ohgLhC0TM6ckMZVg7AHA... | 1 |
math | pre-k | cubes | true | false | Which shape is a cube? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAQ6UlEQVR4nO2de4xU13nAf3f2zWvXrGF5rQGbxRBsQ8AGO3ZM6zhN2iZ205rKDrJdt35VamUpiiKlUh9q/ugfqdSqTRTHxsUxiRIcpDh2Y9UmxOAnkOAaYwNe1mZ5GDB46cIu+2Aft398M7N3ZmfZmTP3de5+PwnNzL1nzv3Y+ebM9zrfdVzXdU9dhLYe6BqCQRdFiR2VDkytgJZJ0FQNzql+1919PmqxFKV41kyDykM98mJ2NVw9WbRaUeJG1xB8cAFOXoTWHki... | 0 |
science | grade-4 | identify-rocks-using-properties | true | false | Select the one substance that is not a rock. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANcAAAEGCAYAAAD2aACLAACkDUlEQVR4nOz915Ns6XneC/6WN7nSm/J21/a7d3uYbhIkaAGSoo4onTM6MxOauVGcy5n5JxShqwmN5loTZ0ZHmtDRHIkSSYmiRIAgwUaj/e7efu/yld7nylx+rblYWdkGDZAAsQGQrCeiIquyXJrvWe/3ve/zPq/w1ihJrmYgK3GBC1zgR8AkgodTaPhQlOHnCun94gWxLnCBvxqyElzNpJ/b0cf3ixfEusAF/uo451GQfHyf+NN5KBe4wN98XJDrAhd4Rrgg1wU... | 0 |
science | grade-5 | compare-magnitudes-of-magnetic-forces | false | true | Think about the magnetic force between the magnets in each pair. Which of the following statements is true? The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different sizes. | "iVBORw0KGgoAAAANSUhEUgAAAfQAAABwCAYAAADogILwAAAdWElEQVR4nO3deVxU9d7A8c/MsIqAuCLixmIoqLjgUuaSC65JWuHTcm25PHZTu7k8Pbbdm9XrVd6nUqtrWi6hXkutNCVtuXa1NFFAFgVcQCUVMZV1hn2Y5w+DXEBnYGbOzPB9v169XsGcOfM9nDnn6znf3+97VAaDwYAQQggh7Jpa6QCEEEII0XSS0IUQwgxSUlJQqVQ3/Ofi4kJISAiLFi1Cq9WatL4HH3yQMWPGmBxHRkYG999/P+3ataNdu3ZMnjyZY8eOmbweYX+... | [
"The magnitude of the magnetic force is greater in Pair 1.",
"The magnitude of the magnetic force is greater in Pair 2.",
"The magnitude of the magnetic force is the same in both pairs."
] | null | 1 |
math | grade-6 | classify-rational-numbers-using-a-diagram | false | true | Use the diagram to help you answer the question below. Which of the following is both a rational number and a whole number? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEuCAYAAAC08GWcAACEKklEQVR4nO3dd3hUZfbA8e/0kklvdEgInVCkKiIgKIqoIGAB27Lq6op9XdefXVHX3l17AayAAoqKYKH33nsLJb1Nps/c3x83GUA6JJmS83mePDOZTGbemWTuPffc855XoyiKghB1SK4jwP4KP0WuABVeBYcvgNOn4PAqOHyKer3y++D1qtu9gWPcplDuVT9GMXoNZr0Gs06DWQ+W4PVDl3+9zVJ5W7xJS4JJQ6JJS6JZS4JJS6JJvYwzakL8rgkhhBDiVGkkwBbRosi... | [
"–10.1",
"22",
"–191",
"–88"
] | null | 1 |
science | grade-4 | identify-vertebrates-and-invertebrates | true | false | Select the invertebrate. Hint: Insects, spiders, and worms are invertebrates. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK8AAADMCAYAAAAF8vOBAACwaElEQVR4nOz9d5wkx3Xni34jIjPLtZ3umemxGANgBjOEBwae8ABBECRAI3pJJCVKy9WuVm+1+7R6K+3qau++fVeOoiRKlKFEUnQASJAEARKWIOE9Bt5jDDC+e9pXVWZGxP0jMjKzqquB4UJ/3Pf5KD6fnunOysoMc+LEOb/jxMNT1m5qQL/iX9u/tv9HthkNL8zB3hiGAzh3yF2X/0q4/9r+n976FWxquN9ndXFd/ivh/mv7/4fm6TSxxbWg140//ul9AFhrEUL... | 0 |
math | grade-2 | compare-clocks | false | true | The clocks show two things Carson did Thursday after lunch: Which did Carson do later? | "iVBORw0KGgoAAAANSUhEUgAAAe4AAACiCAYAAACH+i71AAAzmklEQVR4nO3de1xT9f8H8NdgwNgFxh28ASampXHxa1IWYqmpWPr7VdpVMSsrNbHvt69altpF/Xbx67W+fROD6pfXSktIzBQxE0sBLxU60VHqNuQy2AYDxj6/P4gjgwEbDHbh/Xw8eOTO2Tn7bO31ee+c8znn8BhjDMRq6mNHUXXqF2jPnYH2t3Ooll2wd5OcmjBqMMS3Dod42G3wHXUHfG+Pt3eTiBOiXNoW5dIx8ahwW8dQUY7fF76AsqxMezfFIjww8HgAwMAYDww... | [
"did a puzzle",
"played soccer"
] | null | 0 |
math | kindergarten | one-less-with-pictures-up-to-5 | true | true | Count the bees in this group. Which group has one less than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABmCAYAAADxjOYpAABBkklEQVR4nO3dd3gc5bX48e+s2qqstKorqzfLlixZxd3GuBCICWDTTCpwgUASAhgIJBAuECA3ufQQkwChB3J/CQZiMITmKmOMi7osN/VmdW2RtCqrnd8fK60kS+6yJdvn8zw8rHZn3p3Z8Xl09O6Z8yqqqqoIIYQQQgghxoRmvA9ACCGEEEKIc4kk2EIIIYQQQowhSbCFEEIIIYQYQ5JgCyGEEEIIMYYkwRZCCCGEEGIMSYIthBBCCCHEGJIEWwghhBBCiDEkCbYQQgg... | null | [
"iVBORw0KGgoAAAANSUhEUgAABIYAAAB+CAYAAABRYRpnAACB4ElEQVR4nOzdd1xb1/n48c+VBIgp9t4YzF7edryzEzs7XdmjabNn2zTNqtt+f0kzmiZpsxNndGQ7TprlifdgY/Bg7yk0ADGE7u+PCwIMtjFe2D7v1yuxkO69uleHR5zz3DMkQEYQBEEQBEEQhONClmUae6G0C8z9YBW1bUEQBGES0UjgroZYFwhwBAmRGBIEQRAEQRCE46axR2an6VSfhSAIgiAc2SwP0JzqkxAEQRAEQRCEM8mBLuXfIEeY6qrclRUEQRCEycL... | 1 |
science | grade-5 | animal-adaptations-feet-and-limbs | true | true | Golden eagles eat fish, mammals, and other birds. The golden eagle's feet are adapted to grab prey. Which animal's feet are also adapted for grabbing prey? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEKCAYAAABnkCFsAAEAAElEQVR4nOydd5xcdbn/399zztSdsr1mN2WTTW8kIYSQQOhNQIqCCCJcQVEQEH6gXi8X4QpI86oRIYiEogjSESSEEiAhpBBCetvsJtlsb9PLKb8/zszszO4GFoxEueed17wyc+r3POfM7PN9vp/n+QrDMAxVVdF1HQsLCwsLCwsLCwuLf08kSUJRFEQymTQs597CwsLCwsLCwsLi3x9JkpAs597CwsLCwsLCwsLiy4Gu60iHuhEWFhYWFhYWFhYWFgcPy8G3sLCwsLC... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA88AAAEKCAYAAAAsMWftAAEAAElEQVR4nOydd5xcV323n3POLdNn+0q76l223HtvFJtieoAQiDFJILQAgeBU3gQSkzjBJMQYYl6CwRCDqTYYMLZx77YsS7Ilq0u72t6m33bO+8fdGe1KK1sGBye88/izH83cOXPvueeeO77f82vCGGPCMERrTZMmTZo0adKkSZMmTf53IqXEsiyEEC91V5o0+a1ENoVzkyZNmjRp0qRJkyb/+9FaE4bhS92NJk1+a5FN4dykSZMmTZo0adKkyW8HzWf7Jk3++5A... | 0 |
science | grade-3 | identify-minerals-using-properties | true | false | Select the one substance that is not a mineral. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANcAAAEYCAYAAADPtGNgAADIqElEQVR4nOz915NtSZbeif18672PDnlFyhJdVWigAUyjQdA4HNAwMPLfBR9IGmnDhzEbAwk1GEx1oUSKm+KKkEdv7YIPvt3PiVuZXVmVmdNVxXCzsLg3xImz9/bla61vfetb4j9sjPnJCCYhj+txPa4/YO0U/LqENx0sIvhv5/brwaNhPa7H9e3WJISfjOy/9+rw9eDRsB7X4/r2y9lRbw5fC/5+3srjelx//uvRuB7X4/qe1qNxPa7H9T2tR+N6XI/re1qPxvW... | 1 |
math | grade-5 | identify-trapezoids | false | true | Is this quadrilateral a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEACAYAAACJVgHaAAAoUElEQVR4nO3deXzddZ3v8ffvd35nSdM2XdOmLS1tWqhAKdAlLUvTBWWdAUUEFxxFB72Kcu+MIqLIAA6KeOdxGZkF78BcRB1kYAYYVEZLNwpt2hS6IZU2Tdek+57kLL/l/pGT/E5iTrqdnPX1/KvHR475kvzOI+/f97zP92N4nucJAAAAQEaYuV4AAAAAUEwI2AAAAEAGEbABAACADCJgAwAAABlEwAYAAAAyiIANAAAAZBABGwAAAMggAja6+Nx7tj6yJp7rZQAAABQ... | [
"yes",
"no"
] | null | 0 |
math | grade-4 | identify-rhombuses | false | true | Is this quadrilateral a rhombus? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAESCAYAAADHSKJKAAAr3klEQVR4nO3dfXzT9d3v8fcvSZM2vYXKTUEUpsIunVNAcZcIDq0ONhm6iciRiVOZwhhWGTKvA4IWhsC5HDIn23EqOjY8FEVxTp1ueHmNc6Zu4nQwYZObclMpFHqTpm2a5Hf+iPSXFFICTZu71/Mvfgm/5IvC4/HOu598v4ZpmqYAAAAAxIUt0QsAAAAA0gkBGwAAAIgjAjYAAAAQRwRsAAAAII4I2AAAAEAcEbABAACAOCJgAwAAAHFEwMZpmb/Oq+WvNid6GQAAAEn... | [
"no",
"yes"
] | null | 0 |
math | kindergarten | subtraction-sentences-up-to-10-what-does-the-model-show | false | true | Which subtraction sentence does the picture show? | "iVBORw0KGgoAAAANSUhEUgAAAPoAAAAyCAYAAAB1V8bkAAAPq0lEQVR4nO2deXRc1X2Avzf7ppE02hdLsoWQjWxsOSBwwQFqdkMAsyWlnEJoUpzmBAop9JDGENostKahOYb2kFLDwZStJjTEgAMuHJNgsEGGY3mRbGuzLMmSZt/3/jGeGUmzSKPNVLrfOT7We/OW+83v/d6779737kjRaDSKQCCY18jOdAEEAsHsIxJdIFgAiEQXCBYA8z7RO451nekipDCVMgmP2WMheCjmsBxzzvMvbWfP3lbWtKzmrjtuPtPFAaZWJuExeywUj3l... | [
"5 − 4 = 1",
"5 − 5 = 0",
"4 − 3 = 1",
"5 − 3 = 2"
] | null | 0 |
math | grade-4 | compare-fractions-in-recipes | false | true | Does this recipe call for more sugar or cocoa? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH6CAYAAAA9XzulAAB7+0lEQVR4nO3dfXzN9f/H8cc5O7vebGaYi1D0VTGXK74hc1USQpOKyhdfci3U14+wkBS5qAklFV0gsUIJiVohY8Naci0Xm5mZbez6nN8fayezjW3OnMXzfru51c7nfd6f1/mcs7PneZ/35/0xWCwWC3+xWCyYzWaysrKs/4xGI46OjphMJhwcHDAYDIiISNllsVjIzs4mKyuLzMxMzGYzJpPJ+s9oNOq9XESkFBlyA7bZbCY7O5vMzEwyMzNxdHTE1dVVb8IiIv9wFou... | [
"sugar",
"cocoa"
] | null | 1 |
math | pre-k | circles-squares-triangles-and-rectangles | true | false | Which shape is a circle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACbCAYAAACao4KyAAAMqUlEQVR4nO3de4wdVR0H8O85Z+7d3Xv37t3dtlu2T1qqQKu28hYFRaBCTFGCIAQMIDFA/yBBCILyCDE1GDBKEykJscYHRkBBTYylCZjSQkit0AJFCtjti3Z322737t29e1/nHP+YBbZQWu+Zx5mZ+/skTaHtnN8P5tszc2fOzGVaa91fBd4tAUUJ1DUI8cxhQE4An8oA09MA669ovXHEdlskyc7sAJx3Su6/9KaBE7NuCgnxqiiBbWPAvirwdgngI3X3NyhkxE8... | 0 |
math | kindergarten | ordinal-numbers-up-to-fifth | false | true | The first picture is a train. Which picture is fourth? first | "iVBORw0KGgoAAAANSUhEUgAAAaUAAABdCAYAAAAFZHluAAAis0lEQVR4nO2de3xTVbr3f7tNpUnTJtjaVnuhSLAF6Q0FgRSFj4ByUdDR4TbKzXlHCioOQ6HqSHsOSAuoqOVy3per5yAIXpFydUY8pQiItLRAy5COaQsSSsGGpkmhSfb7x052kzaXnd2kzWV9/7LJ2mutLBfrt9d6nvU8FE3TNAgEAoFA8AKCeroDBAKBQCCYIaJEIBAIBK/BY6LU1Eaj7+HbyPxnM5rayAkhgUAgEJzDS5S+udaG/OpWh2JzrFEPpdaIcrUBc37R8u4... | [
"plane",
"train",
"bear"
] | null | 0 |
math | pre-k | cylinders | true | false | Which shape is a cylinder? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAT9klEQVR4nO2d+ZMcRXbHv1nV1dfcV89Io5nRSGIEAolhuQKMzW5gwusNE3ZsmHDsYhvkAxH+zf+NAnnRAmaNQzaBF8IOIpYNBGgFSGK1CB1zaDSj0TGankMzfV+V/qG6qqt7zsrpqs7szs8vXV2VlZVd/SrrvXwvXxJKKZ3LApNJIFYA8hQSCXf4CNCiAg+EgV4/QOYylH6zWutmSSTb5+lWwDeRNL7s8gMHmwyplkh4I1YAxhLA3SwwngSU1bxxQAqthGdaVEN... | 2 |
math | grade-1 | time-and-clocks-word-problems | true | false |
Bill ran a marathon. The race started at 9:00 and Bill crossed the finish line 3 hours later. What time was it when Bill finished the marathon? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHwAAAB8CAYAAACrHtS+AAAd/ElEQVR4nO2de3iU1bnof3NLJnPJTC4kMwImXIZi5ZLElgSRELxQLrXaarG2tkTpeazlWs52K1s8xbML2HP2tsjluG0JJUetEgtibaJgqyGKBBQIGDUwQCYIzEzIZZKZSSbJzHz7j3GGTBJC5pYo5Pc8eTLfmlmX+d5Z61vrXe96X5EgCIKlE063gd0DboFhriGkIlBLwKCA9DgQWToE4XDrUDdrmMEgNxGkxjbfhT4OvqX0/RqGuXawe+CkE8ydcKoNxK1u3xv... | 3 |
science | grade-3 | classify-rocks-and-minerals-by-color-shape-and-texture | true | false | Select the black rock. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAAAwM0lEQVR4nO19a5PbuJLlSYCU6uFqd++NuDd29///uJmJjZ62XSWJJJD7AUgwkQSpcrvddszFiVKwJJIgHvlGAiRmZnR0dDThfnQFOjp+ZnQG6eg4QGeQjo4DdAbp6DhAZ5COjgN0BunoOEBnkI6OA3QG6eg4QGeQjo4DdAbp6DhAZ5COjgN0BunoOEBnkI6OA3QG6eg4QGeQjo4DdAbp6DhAZ5COjgN0BunoOEBnkI6OA3QG6eg4QGeQjo4DdAbp6DhAZ5COjgN... | 1 |
science | grade-4 | compare-properties-of-materials | true | false | Which would stretch the most? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKUAAADCCAYAAAAo2gI4AABlTElEQVR4nO29eZQl2V3f+bmxvf29fLlWZta+dS29Sa1Wt3ZhJMGAQUaCwRoNyIMGLIM9AmM8nrFn8BnwGTBm7DFwZB88lmzLyMYII2SxCCQhqdWA1u6u7q59r8rKfX9rLHf+uBHxbsSLl5nVXd1dkup3TuaLuMvvbt/7+93f3UJ8ZU3K+0pQMblH9+hlpQ0fzjbgVhfqFrxxSLkb9wB5j14pqphwX0k9b/o9d+MeIO/RK0kR/lzZc7Nemazc/eQHkq7n4weSZte... | 2 |
math | algebra-1 | compare-linear-functions-tables-graphs-and-equations | false | true | Function A and Function B are linear functions. Which statement is true? | "iVBORw0KGgoAAAANSUhEUgAAAjcAAAGlCAYAAAAGbtd7AABVj0lEQVR4nO3de3yT9fk//leSJk2atLS0pJS2QIoroK0URVumyAA5ic6pHDwM0c8mmw+Zuo+6ufn9wOZnOg84dZuHH55P88BQEDZlnxVQVEqnk1q0LUhaaKlNDzS0ac7J/fuDJbZQmqT3ndxJ+no+Hj6Q3HevXAlX3r1yX7lzKwRBEEBERESUJJRyJ0BEREQkJTY3RERElFTY3BAREVFSCau5ycnJgUKhOO1/+/bti3Ka4XvxxRehUChQVlYW8/v+4IMPgs/JOeecE/P... | [
"The y-intercept of Function A is less than the y-intercept of Function B.",
"The y-intercept of Function A is greater than the y-intercept of Function B."
] | null | 0 |
math | grade-1 | interpret-bar-graphs-ii | false | true | Rick asked fourteen people on the street to vote for their favorite vegetable. He made a bar graph of their responses: Did more people vote for lettuce or corn as their favorite vegetable? | "iVBORw0KGgoAAAANSUhEUgAAAf4AAAFfCAYAAACvL65uAACKMklEQVR4nOzdeZwcdZ3/8VddXX1O91yZTO6TI0AIBMLhigEERRAUb9QFV0QWD2DXa11/HuvuKrqooIKKSnBFdHUFFrxAMJzhCgkJCeS+Jpl7pu+6q35/9GQygXDknMnM5/l45JHu6jq+XYF+1/db3++3lCiKIoQQQggxJqjDXQAhhBBCHDoS/EIIIcQYIsEvhBBCjCES/EIIIcQYIsEvhBBCjCES/EIIIcQYIsEvhBBCjCES/EIIIcQYIsEvhBBCjCES/EIIIcQYIsE... | [
" lettuce",
" corn"
] | null | 1 |
science | grade-8 | use-punnett-squares-to-calculate-ratios-of-offspring-types | false | true | This passage describes the agouti fur trait in cats: Agouti is a fur pattern that is found in many mammals, including cats. When a cat has agouti fur, each of its hairs has bands of different colors. These bands give the cat's coat a striped or swirled pattern. When a cat does not have agouti fur, each of its hairs is ... | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAD6CAYAAADUdTPBAAAZbElEQVR4nO3de2zV9f3H8de5tKf3Hg5lQKkFCuO2KaCwlui8MgUkIlncpohVZEuWKBkmzEQJ2RYX4iY//3JRkEUJYREYg7khS0UQJgSpDnXhWgott0ILtKftOT1tzzm/Pw49PaUtl/nVc87nPB8JSc8538unvP959X0+n8/XFg6HwwIAAABgBHu8BwAAAADAOgR8AAAAwCAEfAAAAMAgBHwAAADAIAR8AAAAwCAEfAAAAMAgBHwAAADAIAR8AAAAwCAEfAAAAMAgBHw... | [
"1:3",
"0:4",
"4:0",
"2:2"
] | null | 2 |
math | grade-7 | perimeter-and-area-changes-in-scale | false | true | Look at this square: If the side lengths are tripled, then which of the following statements about its perimeter will be true? | "iVBORw0KGgoAAAANSUhEUgAAABoAAAAOCAYAAAAxDQxDAAAByUlEQVR4nL1UvavxYRi+DgZfAyn5GPgHyCBlsVEkJUn9NguLyF/gczEqiwGLgX/AbiNlo2SxCSU/g4/CdYbz9uucznnf1Hty1V3PVXdd1/081/28kSReANkrRCSh4/EIQRBgMBhgNptRqVR+X4kkM5kME4kET6cTV6sVTSYTh8MhfxMKAPD7/XA6nVCpVLDZbPB4PFgul/D5fF9MHQ4HpFIpjEYjaLVa1Ot1+P1+RKNRuFwuTCYTzGYzJJNJqFQqDAYDrNdr9Pv9j4k... | [
"The new perimeter will be 3 times the old perimeter.",
"The new perimeter will be 4 times the old perimeter.",
"The new perimeter will be\n1\n2\nof the old perimeter.",
"The new perimeter will be 2 times the old perimeter."
] | null | 0 |
math | grade-3 | correct-amount-of-change | false | true | You pay $4.86 to buy a green kitchen towel costing $4.27. You receive the following change:Is this the correct amount of change? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACXCAYAAAAvQiyVAACw2klEQVR4nOz9Z3hd53Xgb/92Pb3goPde2HuXSEpUr1az5O7YcXc8idOcTOadjJ04TmaSzIwdW+52nNiOerUkUpTE3jtIAARBgOj94PSy2/vhkLD0j5NIsmxlrOe+Ll0AQYg4e2F/WHud9awlOY7jIAiCIAiCIAjCW0J+u1+AIAiCIAiCIPwmEQm2IAiCIAiCILyFRIItCIIgCIIgCG8hkWALgiAIgiAIwltI/VX/AMe2yKTTpBJxkok4sbk50nMzpLI5ZCBQFCEQLsb... | [
"yes",
"no"
] | null | 0 |
math | grade-8 | identify-reflections-rotations-and-translations | false | true | Look at this shape: Which image shows a reflection? | "iVBORw0KGgoAAAANSUhEUgAABbAAAAC3CAYAAADD5XikAAAcpElEQVR4nO3de7CcdZ3n8Q8Qc+VuBLqRyww7C8hF5GiIa1BDEIk4M+JAhNFVSkSrhCEOlAtDdocws66iNbIyQs0yJq4IcgnkIgjDJYBLEIJ0dMRgqPHCtY9AwgKBQEZI9g+2DycnCZDk6X766fN6VVGeEw7f/to+VR7e+eV3tkqyNgAAQCHWrvXtNQAAFGXrshcAAAAAAIANEbABAAAAAOhKAjYAAAAAAF1JwAYAAAAAoCsJ2AAAAAAAdCUBGwAAAACAriRgAwAAAAD... | [
"C",
"B",
"A"
] | null | 1 |
math | grade-2 | identify-the-fraction | false | true | What fraction of the shape is purple? | "iVBORw0KGgoAAAANSUhEUgAAARQAAABkCAYAAABHJc8MAAAQ1klEQVR4nO3dXVBbZ37H8a+MhJCEETZg82IZDFgGx8bgEBO/ZGftZL3NeLs7vklne5Xd3uWqs7vtTC/ai3amO9Nme9OZvWvt6Z19EXfjJJ5J4pB2bYhZ1xDHsUHxi4wwCIOMhHkRSI56cTgyL5I4ko5eQP/PTRgjjh5nrB/n/J//8zyGSCQSQQghdLAl1wPIlM8+eMi//E0P4yOzuR6KEAXDsNnuUB4N+em+7MY95AcDFJuL+Ku/7aDGUZrroQmx6W2aQPH7gnRfdtP... | [
"4/8",
"2/10",
"4/5",
"2/7"
] | null | 2 |
math | algebra-1 | compare-linear-functions-graphs-and-equations | false | true | Function A and Function B are linear functions. Which statement is true? | "iVBORw0KGgoAAAANSUhEUgAAAjcAAAGlCAYAAAAGbtd7AABRK0lEQVR4nO3de3xU9Zk/8M9cM5OZQEJgkkASSMDgJUhQMEGNFCwCoq0XwKqrlG2luytVW3W1utW17c+qK7VuxbpotaKuF0oLwq6X1wZQEEJKWzEoRGUSSIiZQMiQTM7c5/v7I50xIZeZyTmZ6+f9evlCZk6e88zwzDfPnPPMGZUQQoCIiIgoRajjnQARERGRktjcEBERUUphc0NEREQpJaLmZvz48VCpVEP+9/HHH49ympH7/e9/D5VKhYqKipjv+4MPPgg9JxdccEH... | [
"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 | pre-k | one-less-with-pictures-up-to-5 | true | true | Count the cookies in this group. Which group has one less than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABmCAYAAADxjOYpAAA1qklEQVR4nO3dd5Sk913v+fcTqp7Kobs6VIfp6YmaGcUZZcmWLbAASwRhg20M5q4TcLjssgZu2Ht3WS733nN2vRjvAS7JNmYx2Bgs21g2YAVbsmUrzShNDh2mQ3WsnOt5nt/+UR2nu2d6ZrpnWvb3dY7OqJ+qJ9Wvf6c+/Xt+QVNKKYQQQgghhBAbQr/eFyCEEEIIIcQPEgnYQgghhBBCbCAJ2EIIIYQQQmwgCdhCCCGEEEJsIAnYQgghhBBCbCAJ2EIIIYQQQmwgCdh... | null | [
"iVBORw0KGgoAAAANSUhEUgAABIYAAAB+CAYAAABRYRpnAABqHUlEQVR4nO39d5xj13Xg+/5OAHCQgSpUQIWu0LmbuZs5SVSyRMq2ZFnRkmcU7fH4Xo88nuAJHo9n5t3nIPu+GcuWTcmSLY80tkUlSrYkkhIpMXc3U+dUOQfkfM7Z7w9U7K7qrupYVK/v58NPs1DAwQE2FmrvdfZeWwMUQgghhBBCiEtCKcV4FU4WIeeALb1tIYQQG4ipQdiArQFo8YKGJIaEEEIIIYS4ZMYriheyV/sshBBCiPO7PQLm1T4JIYQQQgghfpqcKNb... | 2 |
math | grade-1 | am-or-pm | false | true | Seth is at the circus one afternoon. The clock shows: What time is it? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACwCAYAAAA16xkbAAAQaklEQVR4nO3dX2zdZ3kH8Oc4DknqQ0pXIAdaqoJPJUZp7YhtYktSdsHkXCA2JUOloCnV1HZr3Em0Eg4XTRAOF8QSKRckUskFTVnbDZFM24RkMyXRWpuCOo1E6ygVdvjfOozSVj0nifPH3kVqxz5O7PPzee3Tc/z5XDmJ3/O+p/XF9zx+fs+bm5iYmAgAACCJlnofAAAAmomADQAACQnYAACQkIANAAAJCdgAAJCQgA0AAAm11vsAC3X27Nk4fPhwDA0NxYsvvhgvvPB... | [
"2:00 A.M.",
"2:00 P.M."
] | null | 1 |
math | grade-2 | place-value-models-up-to-hundreds | true | false | Which place-value model shows 47? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMQAAACnCAYAAABOxvOfAAAIIUlEQVR4nO3dTWwcZx3H8d/szOzO2t71C7YhFFWhSTBpU4JAKBEI1EMlqFClwpEDSBwQai+cuMKZIwcu5e2AkDggQXqoEEICDkiUF4lUceq46QmpSRy/7a7tXe/LcFgsPQdn56k9+8yunu9HiqwoM/8dxf5lXvObIE3T9MGx9O6h1OxLvVSAN6JAqoXSlRnpw2UpeNBJ07caRW8WULwbdSnaPBz+5kJZWpsdpgXwRbMvbRxI7x9L9w6lUqM3/APCAB/VwuHPviS... | 0 |
math | grade-8 | quadrants-and-axes | false | true | Look at the coordinate plane. Which point is in Quadrant IV? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AAA0TUlEQVR4nO3df3DUdWL/8dcma0IS8gsCBDBErYAaAvJDficnh7QoFlFhPEbvpFKnOOPg3TA341DrtPZk7HToKf6YlvZG2pHWMYO1lws2ggghiFxAIEBggDsDGBJCyG82u8v++P5hN98ACezq+5PPfsLz8Zf7SXjnNW93P5/Xvve9u65wOBwWAAAAACMS7A4AAAAADCQUbAAAAMAgCjYAAABgEAUbuMUVFxfrk08+6b7929/+Vvfee69CoZB9oQAAcDAKNnCLmzhxoo4... | [
"(\n–\n4,2)",
"(\n–\n3,\n–\n2)",
"(4,3)",
"(2,\n–\n1)"
] | null | 3 |
math | grade-8 | nets-of-three-dimensional-figures | true | true | Which figure will this net make? | "iVBORw0KGgoAAAANSUhEUgAAAKYAAADNCAYAAAAyuwvuAAAO9ElEQVR4nO3da0xUZxoH8D+MMllYTKCZ9dJ2toi3kYu1taO23Zo23Mw2hdgatDWV1KFWAQVdlZiVJrq1QlsYxUstY4PdtsrWbeOmiViMjXtJAet6QQaLi8psuro5WUiYQHLAmdkPMJPhIDKXM+fynuf3jXGYed7w951zzvucd6I8Ho8HhChMtNwFEPIgFEyRNDU1oampSe4ymEHBFIHVakVWVhaysrJgtVrlLocJUXSMGR6O4zBr1iz09fUBAOLj49HV1QWDwSBzZep... | null | [
"iVBORw0KGgoAAAANSUhEUgAAASIAAADNCAYAAAAc231VAAAZWklEQVR4nO3de1yUVf4H8A8g8FsJQTfyViBqKiKXLqKWJJoKpQVZrVLtyhZumppQv4xqc321m6nb6qB5W2gXdzPxt7aLpZu3Ehe3FLuMIKC2GsOuWTu7MkKwOwPPzO+PcSYQlNszc2bO83n/w3Bx5nsc+Xiey/keH5vNZgORh/Hx8RFdArmRr+gCiIgYRCo5cOAADhw4ILoMIq/EIFKBTqfD9OnTMX36dOh0OtHlEHkdH54j6hmj0Yjhw4ejrq4OABAcHIyzZ88... | 1 |
math | grade-2 | select-figures-with-a-given-area | true | false | Which shape has an area of 6 square units? The shapes are made of unit squares. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKQAAACGCAYAAABT0SF8AAACtklEQVR4nO3cPYsVZxzG4XvOvhS+bBCCksIihaZIKxg/QMqU6fx4VtolZT6AQWwtdAMpUmRDAsKuLrjZw5NiWFBsz+y5yV5XMzMM/OeB+fEw1UxjjHF0lvx2mpysk/MRuDS7U3JzJ7l3Lbmzn0xHH8Z4cbztZUHy8CDZPTydL77aT765PtcKl+Vknbx+n/x5lrw5TVbH5/MNMbINN3fm9pLk3TpZrT+6Adtw0d6/I1ltdynwKUFSRZBUESRVBEkVQVJFkFQRJFU... | 1 |
math | grade-5 | understanding-probability | false | true | If you select a marble without looking, which color are you more likely to pick? | "iVBORw0KGgoAAAANSUhEUgAAASYAAADECAYAAAAyP4znAABtbElEQVR4nO29eXgc5Z3v+3mru9UttXZZtizZyHgB2zEQMAxrxGAm2AlkAHMOW4ZAZnIDYc5zcwOTGwhw57n3AQxPTpZ7JifxJDdhAsmQhBDjDHMwmUDAxGGzMYsHG7ABW7u1S61eq973/vHW1pJstHS3ZNNfHlOq7lJXVavqW9/fLpRSiiKKKKKIOYTgbB/A0fD73/+e5557jkOHDtHW1kZ7ezvt7e2Ew2Gamppoampi0aJFLF26lEsvvZRPfvKTs33IRRRRRA4g5pJ... | [
"black",
"purple"
] | null | 1 |
math | grade-8 | model-and-solve-equations-using-algebra-tiles | false | true | Which equation does this set of algebra tiles represent? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABiCAYAAABqHaQ/AAAIRklEQVR4nO3dQYhd130G8O++GVWuRsooHWssW1M7tjGpRkmp1EoCB9vB1NAmi1DGgQSMuzHFG9GNvHEdhFSw0c4bLQJOd6WxyeCVk1AxUNmlonKRmwRJCbJdDbGk8YyKguyRx3juu124ERgZe4zOu6P35vdbHh7/7/BWH4d7z62apmkCAAAU0VntDQAAwCBRsAEAoCAFGwAAClKwAQCgIAUbAAAKUrABAKCg4dXewKCp56fTLJ4pPrca2Z6h8ak1lwcA0G+q39+DfXL... | [
"2x=8",
"2x=16",
"3x=15",
"3x=6"
] | null | 0 |
technology | grade | logo | false | true | This is (part of) a (former) logo of which computer related brand? | "iVBORw0KGgoAAAANSUhEUgAAASwAAAEsCAYAAAB5fY51AAAMpklEQVR4nO3dW1Mb5xnA8WeXNeBDILYTx9hJEzsutpuDTzm5k6/Q3nQmveiH7HQy02k6nTZN6zjYEUaAEJI4I0CcMTJC6LBvLzJQMAIk0OrdB/1/l0LaffBYf62WPTiR50MCABq4tgcAgGoRLABqECwAahAsAGoQLABqECwAahAsAGoQLABqECwAahAsAGoQLABqECwAahAsAGoQLABqECwAahAsAGoQLABqECwAahAsAGoQLABqECwAahAsAGoQLABqECwAahAsAGo... | [
"Creative Technology",
"Cisco",
"MacOS",
"Dreamcast"
] | null | 0 |
math | kindergarten | am-or-pm | false | true | Beth is taking her new puppy for an afternoon walk. Beth's watch shows: What time is it? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABWm0lEQVR4nO3deViUVfsH8C8u7IySiiIoiJbOWO4CamJlaAlqiRtq5pJbaWgu1S+1N9HKpRS11wUVt1wSNBc0wcrIBcTMJYc0ZZEh8lUEBoEZXPj9QYwgszyzMSzfz3V1xTD3c547Yi7uOXOfc6yKi4uLQUREREREJlHH0gkQEREREdUkLLCJiIiIiEyIBTYRERERkQmxwCYiIiIiMiEW2EREREREJlTP0gmQ5SkUChQWFqKwoACFhQoUFhagsLAQdevVg72dHezs7GB... | [
"4:00 A.M.",
"4:00 P.M."
] | null | 1 |
math | kindergarten | fewer-and-more-compare-by-counting | true | false | Which group has fewer? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAALQ0lEQVR4nO3dPUxb9xrH8R8xrRwwN4Ojiy4gebAIHVAYUqmMgZXSiUiVGDpVeI7IVKmROnQhajrC2EiJVIUplBV3RFUzuGolXi4DEuYW3XhIzYvba8t3cEloi5O4nHOexz7fz9JGbc//0f/wtWtjn9NVr9frP/8m/ftYKtekal0AQtLdJfUlpOEeqf9tqevnX+v1736xHguIn/f+IXVvHzf+8K+3pZHeRp0AwlGuSZtH0n9+k7aOpUu/VBv/gPiA8PUlGq1J0mF... | 0 |
math | pre-k | ordinal-numbers-up-to-tenth | false | true | The first picture is a crab. Which picture is tenth? first | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABdCAYAAACfMRFHAAAg3klEQVR4nO3df3AUZZ4/8Hf3zIQkZBIIv5MsCibkh8hPNxm3BHNCUniCYBK/Stgtia6GrfoKWILW1xMNJ7e3IrtfErdKgmi4rRPYNWH3BGVvAl6UrboJBUdEvjNAwIN1krArm4MJEMhkur9/dGYyk8yPnpnumZ7uz6uK0sz0zPPkU8/zydPdTz8Pw/M8D0IIIYQQQogk2HhXgBBCCCGEEDWhATYhhBBCCCESkm2Afd3JY8a/OzD/iz5cd9IsFEIIIYQQog0RDbD/0OP... | [
"boat",
"crab",
"bucket"
] | null | 0 |
math | kindergarten | spheres | true | false | Which shape is a sphere? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAALg0lEQVR4nO3dS4/b1hkG4Je6UCNKmnET15fAqZFFHKNedJPArgsEXRTopv0P3fUvddUf4RYtuimQAm0au4iDOq4du23aOo6vM7LuM9SFXVCfRFEUeUgeipyZ99kEGTseRnrn+PA7Hz8ZjuM4z23gn0OgNwUmDogKp2IArTLwvgWcNwHj+ZHj3O7mfVlE6q7vApXHQ/dfLprABw031URF05sCXw2AZzbwaAiUuhP3FxhaKrJW2c0oAPSnQGnq+QWiIpOMjh2glO+... | 2 |
math | grade-2 | skip-counting-stories | false | true | Each shelf has 2 pans. How many pans are on 6 shelves? | "iVBORw0KGgoAAAANSUhEUgAAAVcAAADgCAYAAAC3iSVhAAAmP0lEQVR4nO3dd3yN5//H8dfJFCMTCRIJYmU0BIlRoWqVqhFCa7SKUisaVEurSq0aFTFqfouG1tbaO2bxs9raRCSIIBIjAxm/PyJHThMjybndcnyej8d5OOc+59z3544r71znuu/7XJqUe6fTEeI1Fzy6AwCBI1eoXIkQLxY8ugNGahchhBCG6JWEa/xjDa77S1LzUHHiH2texSaFyBdpsyK/8h2u624VYnR40ec2wLB4cyKSjDlx35Qep63zu0kh8kXarHgV8hWuQec... | [
"6",
"16",
"14",
"12"
] | null | 3 |
math | grade-3 | open-and-closed-shapes | false | true | Is this shape open or closed? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABkCAYAAAC8REciAAAJx0lEQVR4nO3dPU9cZxoG4MfWNiA+JKiIZ9oZZCPFlgwSU5pIxl0UF+42SbN/YNOm2W2d37BJuSs52q3AUnA5SGDJRIJoZtpjnGoiMURQssVwxh6GL5v5gDPXVfoM+NFb3X59z3NuHR0dHQUAANAVfxn0AFdVT3ajur4ZERHFxfmYzt8Z8EQAAAyzGxewD/YaUVt/HVura1Etb0Q9edf2fDr/WRRLC3F/eSkKiw9jdHJiQJMCADCMbt2EikhtfTPerKxFrbwZyU6l7dn... | [
"open",
"closed"
] | null | 0 |
technology | grade | icons | false | true | This is a(n old) logo of which famous app or program? | "iVBORw0KGgoAAAANSUhEUgAAASwAAAEsCAYAAAB5fY51AAA8UklEQVR4nO2de3gb5ZX/v3PRzZZkK3bsxE6cmJBLHZIQUnACBdoASbYt4ZpuaEn5LSy9EdqwfRa2lJaFUgp0u0BJ2V6g2wJd2JJQkna7gXIpl0JCNtxCAkkIITcnTuzYlmVdZ/T+/hiNPJJ1Gcm6zIzP53n0jCVLo3ckzZlzvu855+W2bd0JgiAIMyBWewD5CEUZ6+6Lo9cfBwAc7lW2MYlVc1gEYWpsIodap/J3fS2PBi+PZh8Pl53jqjuy3BjOYIWijL22M4quE3Z... | [
"Myspace",
"Google Earth",
"Microsoft Office Access",
"Samsung Internet"
] | null | 0 |
science | grade-6 | identify-rocks-and-minerals | false | true | Phyllite has the following properties:
solid
not a pure substance
no fixed crystal structure
not made by living things
found in nature Is phyllite a mineral? | "iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAAB6kUlEQVR4nOz9+Y9l6Znnh33Oes85d99v7JF7ZlXWRlY32Wz29CLLM2NLIy+yRmNAf4IEGwPBBgTrBwOGBQPeANsYAYIEjWBI0EAazYzaM9PTTTbZw2aTxapiVeW+xR5x4+7r2Rf/8J57MrNIZrE7ubTY8QCBXCMy8t7zvO+zfBcpSZKEi7iIi/ixIf+yv4GLuIi/zHGRIBdxEa+IiwS5iIt4RVwkyEVcxCviIkEu4iJeERcJchEX8Yq4SJCLuIhXxEWCXMRFvCIuEuQ... | [
"yes",
"no"
] | null | 1 |
science | grade-6 | compare-magnitudes-of-magnetic-forces | false | true | Think about the magnetic force between the magnets in each pair. Which of the following statements is true? The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different sizes. | "iVBORw0KGgoAAAANSUhEUgAAAksAAACtCAYAAACgPzu0AAAz1UlEQVR4nO3deXhTVd4H8G/2pEm3dN9LdwoIsiOoUGRVlFEWBzdc0FFwXn3HdcRlXp1RUWdUHBVl2EQQFVRQVBBZBmSHlkKhdKX7miZt2uzJ+wdSwbZp0iY5N8nv8zw+M23T3G/Kvef+7jnnnsuz2Ww2EEIIIYSQbvFZByCEEEII4TIqlrxYbm4ueDzeFf+JxWJkZWXhmWeegVarder95syZgxtuuKFPWfLz85GVlYWQkJA+/T4hxDfMnj27S7sUERGByZMnY9++fU6... | [
"The magnitude of the magnetic force is smaller in Pair 2.",
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is smaller in Pair 1."
] | null | 2 |
math | grade-7 | apply-addition-and-subtraction-rules | false | true | The number line shows two unknown numbers, a and b. Is b+a positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAIoklEQVR4nO3da2xUeR3G8efMdKalF9qC3MoCFS+wDdIUSmmRADG6a0JYAuENLwSyXCKESNzVJTG6UWkwaCRqIMLKxgTdipqUAJu9GF0zYDa9wg5UWjYqbTEs0IVSSi8z05nji7kA0s6UUOY/k34/L8icM33x5MykPPn3d87fsm3bFgCkkZqaGlmWpY0bN5qOgiThMweQTjJMBwCAJ3Xt2jXTEZBkfOYA0smoC3YgEFBzc7Pq6+s1depUVhHGkfYBW9X/HpK3N6SLvbY... | [
"positive",
"negative"
] | null | 1 |
math | grade-4 | estimate-angle-measurements | false | true | What is the measure of this angle? Choose the best estimate. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABVCAYAAABzYpMqAAAELklEQVR4nO3dv2ucdRzA8c+ZFIemtF00dGn/Aam/Jg00FqktJG0gXXJL06EuCkayOCimWwsKKShip+uSCraSmg7JIidEJ4VmtCWYItQ4efYuro+DzdFrohb5kOeOvl7T83yfZ/hw05uH7z1PpSiKIh7Rajai1WzE4IFDj14CAAD+xVPbLS7X52NxobbDowAAQO+rbPcE+9zE87H+691YqP9exkwAANCztjzBvvVDPVbvrMRGqxE3vvysjJkAAKBnbQnsxZu19vE3S1d... | [
"60°",
"120°",
"90°",
"15°"
] | null | 2 |
math | grade-8 | apply-addition-and-subtraction-rules | false | true | The number line shows two unknown numbers, u and v. Is v+u positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAIMElEQVR4nO3dW0yU+R3G8e87zAwspwFBtB6QxK4YivGECGp23d2LbpbYLsZe2CbiRaPVmJg0dt3EdDcxxsSk8UqTJbFp9ILapMFujaZtsu2i7YaDiLSsiOtGQGwRxeU0DHN8ewEDElHYdeCdYZ7PDcx/3osnmSF5+OX//l/DNE0TkRhWVVWFYRjs3r3b6igyR/SZi4hINLNbHUDkVT148MDqCDLH9JmLiEg0m3HB9vv9NDY2UldXR05OjiZHIiIS1YYDg1ztqOTBUBt... | [
"positive",
"negative"
] | null | 0 |
science | grade-2 | identify-mammals-birds-fish-reptiles-and-amphibians | true | true | Amphibians have moist skin and begin their lives in water. An American toad is an example of an amphibian. Select the amphibian below. | "iVBORw0KGgoAAAANSUhEUgAAAtMAAADMCAYAAACx6y9WAAEAAElEQVR4nOydd7xeRZn4vzOnvv29Pfem90KAUAIBpAREygKCdGRRQXTFBi4K6IoCrrpLW1FQ0EVDUVlEpeyyFFF6jRAgkEISUm5yc/t9+ykz8/vjmruEJBAgiL/d9/v53M/nnvfMmfOcaec5zzzzjDDGmDiO0VpTp06dOnXq1KlTp06dt0dKiW3biCiKTF2RrlOnTp06derUqVPnnSGlRNYV6Tp16tSpU6dOnTp13jlaa+QHLUSdOnXq1KlTp06dOv+/Ulem69SpU6d... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA4IAAADMCAYAAAAmsx3gAAEAAElEQVR4nOz9d5wkd33g/78+Fbs690xPDjuzOWsVVqtVzkhCElEgiWgw+OA4QBw+wRm4w9g4EHxgC74EYwsRTZQEllAOq7RRm8Nsmhx7OodKn8/vj7X2EEiw2Gub3z36+XjsY6e7P1P9qap31dS7PqGEUkoFQYCUkqampqampqampqam307TNAzDYGsJlsUgof9n16ip6aWVQzhYhUkPMgZcmD7xvtZMApuampqampqampp+N1JKgiBoJoFNv/cS+ombFQCV8P+... | 1 |
math | grade-2 | greatest-and-least-word-problems-up-to-100 | false | true | A hot dog stand kept track of the number of hot dogs sold each day. On which day did the stand sell the fewest hot dogs? | "iVBORw0KGgoAAAANSUhEUgAAAXUAAAC9CAYAAABMMe2lAABHQ0lEQVR4nO3dd1QUVxvA4d/Se0dEotgVO6LYW4yRKBZiSzQWTGKJMZbPgsZojDVoYmKLsWISESR2omIFS+yKoBEVFbCgYqFIZ3e+P1YWVopUUbzPOXtgZ+7MvLPl3Tv33pmRtZvnIyEIgiC89Y5OH4AWwNg+Xcs6FkEQBKEYlm0NAECjjOMQBEEQSpBI6oIgCOWISOqCIAjliEjq5UiiHMbcgCm3lP8LgvDuEUn9LXEmAfxi8k/WV5IgJh0iUmDl/dcXmyAIbw6tsg5... | [
"Sunday",
"Wednesday",
"Monday",
"Tuesday"
] | null | 1 |
math | grade-4 | identify-rhombuses | false | true | Is this quadrilateral a rhombus? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACACAYAAAAxkR62AAAf4ElEQVR4nO3dfVhUdd4/8PeZ52EGBh2siLCstLa1Vu92yUsTjUW6UzdILd2nuLvWSnHbO3dlbdN2/S2Z689y3Tsfiy5JXdsWVKzMDF2UFm+0tviFtC09KLBECMjADPNw5sw5vz9AmElNTJjDDO/XP13X5+ic9xRd13u+fM93BEVRFBARERERUb/QqB2AiIiIiCiasGATEREREfUjFmwiIiIion6kUzsA0WBSV1eHtWvXwuFwoKCg4JzrJ0+exPbt21FTUwODwYCUlBR... | [
"no",
"yes"
] | null | 1 |
science | grade-2 | read-a-thermometer | false | true | Select the temperature shown by this thermometer. | "iVBORw0KGgoAAAANSUhEUgAAAI4AAAHPCAYAAACFjuJ1AAAgH0lEQVR4nO2df2wb+ZneH/6QZUvi2F40li0S3QDn1YpAcrvJesnc7fbubJG4RQrYS+41d7gTV0Jy19xKZoM0yK1Wyl3Rw0qWe2h6LW0VKRpEjNR/7uJhVPQKJ2Lky633ADJGsg5QDKvzBmlLynY23naH8sqWKLJ/aDgrSqQtzmiGM3rfDyCAJkcz4/WzzzzvcL7v67h3714FDNMkzlafAGNPWDiMJlg4jCZYOIwm3PXeXF9fhyzLZp8LY1EOHTqEjo6OmvfYcRhNsHA... | [
"55°C",
"40°C",
"30°C"
] | null | 1 |
math | grade-2 | read-a-calendar-ii | false | true | What date is 1 week after January 14? | "iVBORw0KGgoAAAANSUhEUgAAAssAAAGvCAYAAACthZgKAABcz0lEQVR4nO3de1yUdf7//wfDQRAF5Og5UTyLqHgIkdjMUlNzM9dd3Xb9VNZ23Fr7Wv5oO+ynzE9ZbVm72W61ZifN3BI1w9RAJTWPeDYRDRFBBUHOp5nfH8gowaWDAsPg8367dTPmumZ4zYtrrnnO+3pf1zhZLBZL7Kkyvs0s40SRGRERERG5dp08TIwJcuWOdq72LkWugdPy9FLL0UILUzu44GpywmLvikREREQcnBNQZrbw+clSurY0MbGdm71Lkqtk+jazjKkdXXB... | [
"January 21",
"January 28"
] | null | 0 |
engineer | grade-6 | evaluate-tests-of-engineering-design-solutions | false | true | Which of the following could Sam's test show? Sam and his friends wanted to build a boat to enter in a race for homemade boats in their town. The rules stated that to qualify for the race, a boat could not contain any wood or metal. In addition, Sam knew that to win the race, they needed to be able to paddle the boat a... | "iVBORw0KGgoAAAANSUhEUgAAAUwAAAESCAYAAACW6uzYAAEAAElEQVR4nOz9+a5t23beh/1aL0Yx5yr33qe8NS8LsRJlRVSUQLIFJXEQB/AjBAmQ//QMeQU9QB5BCRAESJTEli0rtkRTkSBR5CXvJXmLc4tT7rOLteaco+hFyx+tj7nWPrxUbEPiQQCNg415VjWLMfpovbWvfd/X5O/+3b+r/Pvj3x///vj3x/8fHX/v7/29L+V1A8Affvc7lLwiFHadYz84xk4ZesfQKyGA76HrAxIdBEdGqQIqiquJqplaoNYKBJxz4CLOOTweEUG... | [
"if a boat made from cardboard and duct tape could float for 15 minutes",
"if they would be able to paddle the boat across the lake in less than 15 minutes"
] | null | 0 |
math | grade-5 | identify-parallelograms | false | true | Is this quadrilateral a parallelogram? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEOCAYAAACzXGCqAAAgJ0lEQVR4nO3de5SU9Z3n8W89de9rNd10c01HReXeghMT52STcSajZ00y2eMZT46JxCvqykjCDKJhs2eZPVmDgBJlcFQ0RjFxHfZ4DkviObrMZmRmh5hEkKtgINgB2m66m75XV1VXPbV/oL+60HTX5an6VdXzfvlHvl+srucT/Odj+6XaEY/H4wIAAADAEobuAAAAAEAloWADAAAAFqJgAwAAABaiYAMAAAAWomADAAAAFqJgAwAAABaiYAMAAAAWomCXsRePPSJPHrx... | [
"no",
"yes"
] | null | 1 |
math | kindergarten | fewer-and-more-compare-by-counting | true | false | Which group has fewer? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAHi0lEQVR4nO3d3YtcdwHG8eecMzP7kuwu3bcoSStss7EoSYsh1kSwYLG1laRghIL6J+SiUG+E0kZBr3LvhV4VQSVUqb2xlZaIEOgG7IvRZpNsJLBhk7S7jbPJbublnF8vhrbSumSnu3ueOT3fz9UOs8zvYZkvh9mBmSiEEK42pYsr0nIqtYMAbJFKJA0l0vSgtKMmRVcbIczU3bOA8nlwWKpcWOnc+GJN+vK2Tp0AtsZyKs3ekhaa0vkVKa63O3cQH7D1hpJOa5J... | 0 |
math | grade-2 | choose-the-appropriate-measuring-tool | true | false |
Which tool would you use to find out the length of your shoe? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJYAAACoCAYAAAACcRc/AAAfeElEQVR4nO2de1gU193HvzMLKLsgyFVEEBQxIkaMYrxyebUxNxvT2qBpEzV5+rZq2tRo+7apiZcmaZJqak2jadIYYvp6yauvvLmYRFGBGIws0bUCCoJZBbyAICC7y23mvH9sdt3Z3ZmdhZ3ZBefzPHnizDlz5szsl3POnPM7vx9FCCHXuoBqI3CLAXoIFBTcxo8CglXAGDUQHQBQ1zoJKWnzdrUUBhL3DgH8LhjNBzEBwFiNWXUKCu5yiwEqDcDVLqDKCNBtPeY... | 3 |
science | grade-5 | use-scientific-names-to-classify-organisms | true | true | This organism is a red-eyed tree frog. Its scientific name is Agalychnis callidryas. Select the organism in the same genus as the red-eyed tree frog. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADMCAYAAAAGVtdxAAEAAElEQVR4nOy9d9ydRZn//56Zu5329Ce9AAlJ6BBAEAQWkSIgFlilqLSvq6Irdtx114ZfRBEsiKig4rogioro7teVJiIiLUBIKAmQhPTy9FPuNuX3x0meJQQkYJRdf/f79TqvPOecOTNzz11yzcznui7hnHNaa6y1FBQUFBQUFBQUFBT870RKied5iDzPXWHcFxQUFBQUFBQUFPzvR0qJLIz7goKCgoKCgoKCgr8NrLXIV7oTBQUFBQUFBQUFBQU7jsLALygoKCgoKCg... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA6IAAADZCAYAAAA69Y0YAAEAAElEQVR4nOz9ebhtV1XnjX/GmHOutfbep7k396aFhC6EvpECgyhYQNlRVGyIhYDShLKLFAglYr31/kSER7BQOkFsEEHlKRBLRKq0pFMaEQIJFekbE0L65nbnnN2sNZvx+2Pue0hLbiCC8u5PnvvcnHP2Wc1cc627xhxjfL8CGCtWrFixYsWKFStWrPiW4KNHjHtMYN19s49kxQrYzvC5KVw5wF4P37Wnfl+/qUe1YsWKFStWrFixYsWK25VVELriXxLrrs5JgJ3... | 2 |
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