subject stringclasses 4
values | grade stringclasses 15
values | skill stringclasses 445
values | pic_choice bool 2
classes | pic_prob bool 2
classes | problem stringlengths 0 1.12k | problem_pic unknown | choices listlengths 2 4 ⌀ | choices_pic listlengths 2 4 ⌀ | answer_idx int64 0 3 |
|---|---|---|---|---|---|---|---|---|---|
science | grade-8 | use-punnett-squares-to-calculate-ratios-of-offspring-types | false | true | In a group of jaguars, some individuals have a black coat and others have a spotted coat. In this group, the gene for the coat pattern trait has two alleles. The allele for a black coat (A) is dominant over the allele for a spotted coat (a). This Punnett square shows a cross between two jaguars. What is the expected ra... | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAD6CAYAAADUdTPBAAAkA0lEQVR4nO3de3CU9b3H8c9uLptkE0gCKbcQAjoiFwFbLKLlJlBEHY5SvLVeYXpmjqee6dF6ptPpdFqPf5zTc6adcbSj3FRqizYWFWsTTAjhcooS1CIKlYQQcgVyIWST7G6y2T1/bLJ5IknIZTHJb9+vGWb2YZ999kceMvP5fZ/fxRYIBAICAAAAYAT7cDcAAAAAQPgQ8AEAAACDEPABAAAAgxDwAQAAAIMQ8AEAAACDEPABAAAAgxDwAQAAAIMQ8AEAAACDEPABAAA... | [
"2:2",
"0:4",
"4:0",
"1:3"
] | null | 2 |
math | kindergarten | subtraction-sentences-up-to-10-which-model-matches | true | false |
Which picture shows 9 − 8 = 1? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAgwAAABKCAYAAADXGAxXAAAWUUlEQVR4nO2da4xc1X3Af+feO8/dmX0YvxbbGOMnr2CH2F6SUAjBxiQ0EEJUQSlLIrWK1A9V0w8BtYoSqamStP2QNFKlonQDQc2DhIpUSTAhJSR0bQO7NmCMsVkbe40f633PzvPee/rhzOzsvHZ217M2Sf4/ydqZM/dxfvO3NH+d8z/nKq21PpOFo0mY8MDVCIIgCILwR46jIGbDuigsDYI6k9F63/il7pYgCIIgCO9XtsXBOZI0b5YHYUOTySYEQRAEQfjjZsK... | 2 |
math | grade-5 | reflection-rotation-and-translation | false | true | How has this figure been transformed? It has been... | "iVBORw0KGgoAAAANSUhEUgAAAPoAAABkCAYAAACvgC0OAAAEwklEQVR4nO3cMWwbZRjG8ScowW6tgFFLhSGlcVVFpUtAlRhYfBlYmaiQMqB4hwkGFqoLDCzdYGHB3iJUhihiQ0qaDB0iEB6AVh0qOdAWVRUYCqFVQR9DCIH4Eiefr8539/5/UhTJd3nucv6exk3O71CtVnNRFCkNy8vLcs6JPP+8paWlVLIOWhRFQV9na3nDURQpjuNUAmdnZ+WcI6+PvLxgXYWV90gqSQCCRtEBAyg6YABFBwyg6IABFB0wgKIDBlB0wACKDhhA0QE... | [
"reflected",
"rotated",
"translated"
] | null | 0 |
math | grade-3 | read-a-calendar | false | true | What day of the week is August 19? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAF2CAYAAAAbcOzWAABdXklEQVR4nO3deVyVdd7/8ReHRRAVZHcX3HBBXHNBolxSM63MnLTun5Na2TaLM5bDTMtMmXfZMtlMOfe0mJlpaiZqhduAouioKG5oKqAioiiiIrvn/P5QjhKoBwUOXLyfj8c8Js91nXM+58N1rvM+1/W9vsfBYrFYuM6qs6dYm5VJWkE+IiIiInLnmtdzZbCXLyO8/e1ditQBDtcH/FVnTpFSkMcjAU1xdjRhudk9RUREROSWHICiy2aWZpwgsF59Rvgo5EvVMl3/j7X... | [
"Friday",
"Thursday"
] | null | 0 |
math | kindergarten | count-on-ten-frames-up-to-10 | false | true | How many shapes are on the frame? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACQCAYAAAAyRxwtAAAMi0lEQVR4nO3dzW9c13kH4He+SI4dhwpZwJWDBIW8KOCFjUiB5a3/giDbbAMkCwP+B1qiBrzoxisBadGgaWEvAm+700raJasoQCPBQruRAVsQv4akoiE5nK8uLLq0PjmcM/fe4XmenQTq3vens7gvzn15T+3Gg/44AIj3X2+WXQIA50C97AIAAOA80WADAEBCGmwAAEjoqYHDKyuNMuoozZ86w+/8WX75cyL/8OU/BAATsoMNAAAJabABACAhDTYAACSkwQYAgIQ02AA... | [
"9",
"4",
"1",
"6"
] | null | 3 |
math | grade-2 | match-addition-sentences-and-models-sums-to-10 | true | false | Which shows 8+2=10? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAgwAAABKCAYAAADXGAxXAAAODUlEQVR4nO3dXawc513H8d/zzMu+71n7OOmx3ThRHDs4IZCAiJOUipuoJUW9qKpGFaoirpBQQShCcMcNFyCVC6AgcQ0XUFpViCakiMtCSTAgKtIQ2TGu6pfj45djn3P2dWZnnoeLOWufPV7vzOzOs/uc9PeRotg+Z2f2e8aS/5p5dkZorfVGCFzsAe0YiDSIiIjoJ5wrgIYDnKoCn/ABsRFofW5n2W+LiIiIbHW2Cbgf9ZLfHPWBp2vJNEFEREQ/2doxcL4LXA+... | 1 |
math | pre-k | light-and-heavy | true | false | Which is heavier? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKgAAACoCAYAAAB0S6W0AAAgA0lEQVR4nO2dWXBk13nff3frvdGNHqABzAwww9nI4ZCiKFEURdmyFsuOlTiJZJXtRJErS1XiqqRSrvgheXRV3pylkjy4KnmwKw+xyi5bpZLjJZbtMilTG2VRlERSs3A2DAZbo/fbfddz8nAvurE0BssAg0vy/Apdfbe+fS7uv79zzne+71xNSimXPLjRg04IgUShODZMDYoGXMzBVAq0JVfK77SPu1gKxXY+PAbm9V60MpOCx/ORehWK46ITwlUbFj241gO9HUQ... | 1 |
math | kindergarten | count-to-100 | false | true | How many dots are there? | "iVBORw0KGgoAAAANSUhEUgAAAV8AAAFDCAYAAACdoQ1hAAAmkUlEQVR4nO3dS08bZxvG8atgsIaxMR4DhSjAAnBkEdehG0Ra9uEDFLYEFam7Fwk2VVk26gZQ2KWiCuwQ9APwAVBtsWnrOpTgQCQODSn4gPFgFzCad5HYbYiNZ5yJLB6u/xLN4ScW91ijmXk+0TRNU1UVoVAI4XAYsVgMjDHGzE1RFLjdbni9XthsNiCZTGoLCwua3+/XIpGIVs6mp6fLev7/Rkv+aMkfLfmj5d8ikYjm9/u1hYUFLZlMapZQKIS2tjb09vaW+8LAGGP... | [
"71",
"75",
"80"
] | null | 2 |
math | grade-3 | certain-probable-unlikely-and-impossible | false | true | If you select a marble without looking, how likely is it that you will pick a black one? | "iVBORw0KGgoAAAANSUhEUgAAAMYAAACECAYAAADLC1Q6AAA4PUlEQVR4nO29e5hdVZnn/1l7n1OVqkoqqQpJFbkQSEhCQiRylQhEBRsQcFQYIxEZZ9ARu5+ZUcFnbBXsfqYRRfuH/MZp7J5uxsY7RhtwbFFEVC4SAxHCNQlJ6KSqciFJ3evc9t7rnT/W2mvvc6piKkmdqgqe93mSdfba++yz1671Xe/7ft93raVERKhJTWpSJt5EP0BNajIZpQaMmtRkBKkBoyY1GUEyE/0ANTm06O5d6I7nkb496J4upHc3kuvFm96Omn4iqmUuqmU... | [
"unlikely",
"probable",
"impossible",
"certain"
] | null | 0 |
math | pre-k | represent-numbers-with-shapes-up-to-3 | true | false | Which group has 3 squares? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAC2UlEQVR4nO3cP24UdxiA4W/WfwoCCRURByAcgXPkpLkHNyDQY7rINpYwXk2KEZKlSEmcIruveZ5qRjPFV7z6ilntb1nXdb24nflwM3O1n7lbB47O6TLz7GTm1ZOZn89nlosv6/r28tBjwb/35seZ0/c3283L85nXP2xVw7G52s+8+zzz8Xbm95uZ3eXd9kC0HLNnJ1ujMzPX+5nd/t4DOGbfGv26zuwOOwr8N8IlSbgkCZck4ZIkXJKES5JwSRIuScIlSbgkCZc... | 0 |
math | algebra-1 | model-and-solve-linear-equations-using-algebra-tiles | false | true | Which equation does this set of algebra tiles represent? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABiCAYAAABqHaQ/AAAIKUlEQVR4nO3dUWiddx3H4d97TmLaHGc3NFmbjRbboWtBoS0dE71RGLReCSkjt15V0HpjQRi7Hs2N9EYmwmAMkeFIvQ0t0rkgXTvWYt1SVFJt1KQm3dKlSZs05z2vF8WAtGrD/ufkvOc8D/TiHML7eQuBfjm859+sKIoiAACAJCqbfQMAANBJDGwAAEjIwAYAgIQMbAAASMjABgCAhAxsAABIqGezbwD+m3xuLIrlq8mvm9X2RnVwWK/JPQDoVtm/z8G+NH82Zu9cSx7... | [
"8x=8",
"5x=10",
"3x=9",
"2x=10"
] | null | 1 |
science | grade-5 | identify-magnets-that-attract-or-repel | false | true | Two magnets are placed as shown. Will these magnets attract or repel each other? | "iVBORw0KGgoAAAANSUhEUgAAAdgAAAC6CAYAAAANklx8AAAYWElEQVR4nO3deYycd33H8c9zzH3u7OzldWKRQIgDgaiBuI0hd0khQAikJgUESiuONqVAQLRCtGoRIIpKSyhVaYtEaKhE0jYHIS3QlAQSJ3IAQQI4KCKm2Fmvdz2zc9/PPE//GO9mvd5jjuf4Pb/5vCRLVuTs/Cz/9P7OPM8zz6NYlmWBhmZ1LLRPGOgsGWgvGeiWuzAbFsyGiW7DXPu92TBh1i10qyYAQIurUKMK1Ih66pcCbd3v9ZSGwIyOwLSO4KwOJaB4/DclIlG... | [
"attract",
"repel"
] | null | 0 |
math | algebra-1 | domain-and-range-of-absolute-value-functions-graphs | false | true | What is the range of this function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABkTElEQVR4nO39e3zU9Z33/z8nMzknkJBAAtEEEcWCCQdFBaHiYtVqawutiz3bdbe12/N+r17rb39tr7Zf1+21Vw9bV7td97Ieur2ubt2iXcFAsSDQUIlECCR4wAiBADkMOc35M4fP9w822USBzMDnzWSSx/12681mmM8zr3zeM595zSuffMZl27YtAAAAAI7ISncBAAAAwERCgw0AAAA4iAYbAAAAcBANNoBRqqqqtGvXruGvDx8+rOnTp6u9vT2NVQEAkDlosAGMUld... | [
"$\\{y \\mid y \\geq 2\\}$",
"$\\{y \\mid y<2\\}$",
"$\\{y \\mid y>2\\}$",
"$\\{y \\mid y \\geq 0\\}$"
] | null | 3 |
math | grade-3 | acute-obtuse-and-right-triangles | false | true | What kind of triangle is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACrCAYAAABc+utDAAAccElEQVR4nO3df1TU973n8dfXmcEJQRGDDOFXUqPEai9JnQiXdkJlz0FzOZS1KQ2e6wq3vYZcr3vdIuzZttJfsWx7bqW53b3ntJGmVe42trUlruXaoFayxtQgdzYtm7IJmyY3I2iwpDKGTEZkmP2jlWguAWG+M98Bno9zOEeG4fN9jfnn5Sfv7+drhMPhsAAAAACYYoHVAQAAAIC5hIINAAAAmIiCDQAAAJiIgg0AAACYiIINAAAAmIiCDQAAAJiIgg0AAACYiIINAAA... | [
"obtuse",
"right",
"acute"
] | null | 1 |
science | grade-7 | use-scientific-names-to-classify-organisms | true | true | This organism is a red-billed gull. Its scientific name is Chroicocephalus scopulinus. Select the organism in the same genus as the red-billed gull. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADMCAYAAAAGVtdxAAEAAElEQVR4nOydebwdRZn+v1XVfc65567ZEyBhCYGA7LIJgiIwsjjIpiiICjooi6LouM7I4IILDsIoKqugIqCMKLj8RBbFiBg2E/adkIXsyV3P0l1Vvz+quk+fmwABL8JgPX5i7jmnu7q6+tzwvG897/MKa61N0xRjDAEBAQEBAQEBAQEB/zchpSSKIkSSJDaQ+4CAgICAgICAgID/+5BSIgO5DwgICAgICAgICHhtwBiDfKUnERAQEBAQEBAQEBAwdggEPyAgICAgICA... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA6IAAADZCAYAAAA69Y0YAAEAAElEQVR4nOy9ebwtV1Xt/51zrdr7nNun70hoEhKaAEkECQECISKtASRKpyDNU2mkU0R97wcP8EcXJSIiCIgERUH8iRCbJxAQCBADASMJTUBIQ/rm5jbnnL2r1prz98datc8+917CDeSBQI18Tu7uqmpVs/dnjRpjjimAM2DAgAEDBgwYMGDAgB8LfG6bc8x62Bh+2CMZMAB2ZPjaElzdwj4RHrClvK4/1FENGDBgwIABAwYMGDDgNsVAQgf8d8LGUK5JgJ159fW... | 0 |
science | grade-8 | use-scientific-names-to-classify-organisms | true | true | This organism is a maroon clownfish. Its scientific name is Premnas biaculeatus. Select the organism in the same species as the maroon clownfish. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADMCAYAAAAGVtdxAADKLUlEQVR4nOydeZxcRbm/n7eqTnfPTGayLxACgUDCjuyIgAKiIKigXGVRUa4biCh4xfWiXBe8wsWLCAoiiIKi4gouoLiwbyFmAVkTQgKEkD2Zpfucqvr9Ueec7p6ZQJD5qVfr+Xyame4+a50z4a33fN/vK957n2UZzjkikUgkEolEIpHI/02UUhhjkDRNfQzuI5FIJBKJRCKR//sopVAxuI9EIpFIJBKJRP45cM6h/t4HEYlEIpFIJBKJREaOGOBHIpFIJBKJRCL/RMQ... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA6IAAADZCAYAAAA69Y0YAAEAAElEQVR4nOydebwkVX23n7NUVXffdTZmH4YZGBZBhIgKCgZwATFRI0YRBSVqIm6RJC5JXvO6RI0ajfFVo1GjBhOMGqNoIrgkyqYg4Agq+8ww+8xde62qs71/VHffZe7AIESNqefzuUx3ddWpc06dbupbv00AgZKSkpKSkpKSkpKSXwtumg4cPQBD6pfdk5ISaDi4swW7c1ik4UmjxXb5S+1VSUlJSUlJSUlJSckjSilCS36VGFLFmgRoupntpRAtKSkpKSkpKSk... | 2 |
math | pre-k | circles-squares-and-triangles | true | false | Which shape is a circle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACVCAYAAACgqePCAAAGfUlEQVR4nO2dS08bVxiGP3NbpCTdtYrUbS+brvNn+vtKUJDYmA1SNt7BLkpZpKlYFdtADMhOLMf1zOliSEvA2B77nO98l/eRsojMZYQejcfj9/XbCCGE7pjoryHRoCCaBAJgZTYaRE/XiX58QvT9FlGj+zmE437uwwKWefGMaOP9sPrP8y2in7+pLARgVQYF0btPRJ0x0Z9DorX+pHoAkoGYPF2vnCIi+lgQrRV3HgAgJl+c+icQreU9FOAFiAZYgGiABYgGWIB... | 1 |
math | grade-8 | apply-addition-subtraction-multiplication-and-division-rules | false | true | The number line shows an unknown number, w. Is w–1 positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAGYElEQVR4nO3dT2iTdxzH8c+TmKexNdPM1aGik6EMOjcptrEVBRljF/EQ5xge1gmyboqwo7DDYMMJnnZRqMNThlWmxIObO2wM0l6a1Fq6Bbu5QavSjilap6ZtkibZIX9ssWmrfZanj75fpz5PnsMHnlA+/PJ9fo+Ry+VyAgAHaW9vl2EY2rt3r91RUCHccwBOssjuAADwpG7evGl3BFQY9xyAk8y5YKfTafX09CgajWrFihWsImBGoeGMvh3KqO9BVpK0yedSy2q3Plj... | [
"negative",
"positive"
] | null | 0 |
math | grade-3 | parallel-perpendicular-and-intersecting-lines | false | true | Are these lines perpendicular? | "iVBORw0KGgoAAAANSUhEUgAAAHwAAACCCAYAAACEhqzXAAAKv0lEQVR4nO2dbVBU1wGG32VBKqxVYDMMo7vMEEbwgyiNkSqLUSbiUBNiNR1BjWKN43RimLHTD8Q4tGoVbWob2/5ohBpNkDpJI5pmMo0NGl2wpDFJXRVwotPdZZohomi6bNzV9fbHepbLLOjeved+nN3z/NKFvffMPN7rPfu+e45BEAQBnLghQesBcNSFC49hvLe8Ya9x4TFKl70bzXXNYa9z4TFIY00jGp5tQMr4lLCfJWowHo5COB0uvPaj19Db1QsASPk2Fx6zHN1... | [
"no",
"yes"
] | null | 0 |
math | grade-3 | compare-fractions-using-models | false | true | "iVBORw0KGgoAAAANSUhEUgAAAtUAAAC5CAYAAADnGsNjAAAvuklEQVR4nO3deVxU9f7H8dcg+yYiiyC4pqFW7or7nkvmLc1yK1NzKTO1LG3XSuvmvS1229MyzTDN+rmkpKbmhhto5h5qhisiiKIgMN/fH8QksTsKpu/n4+HjMXPmnO/5fM8c4T1fvueMxRhjEBERERGRK+ZQ2gWIiIiIiPzTKVSLiIiIiNhJoVpERERExE4K1SIiIiIidlKoFhERERGxk0K1iIiIiIidFKpFREREROykUC0iIiIiYieFahEREREROylUi4iIiIjYSaF... | [
"=",
">",
"<"
] | null | 1 | |
math | grade-7 | mean-median-mode-and-range-find-the-missing-number | false | true | Suzie has the following data: If the range is 7, which number could j be? | "iVBORw0KGgoAAAANSUhEUgAAAQkAAAAkCAYAAACaLc84AAAHSklEQVR4nO3ca1BU5xnA8f9eYGG5RVgWuWhVLiJGidTrmLRVFIqRWm2bsXenY6btNJ027Ye2Xzrth2TyoZlOm5nWyVitGdvYzGTaiZWI1QltLojKTZTAEiCVXbCw3OWyy+6efgCRBcULe/YczfP7xrk+vHueZ8953/esQVEUBcDng/FxCAQABSHEJ5EBjEaIigKzeWqRoiiKZxw8Hm1jE0Loi8UCligw+31SIIQQc3k8YDKDUQqEEOJOvB4w+v1ahyGE0Cu/H4yKdFI... | [
"15",
"3"
] | null | 0 |
math | precalculus | identify-graphs-of-continuous-functions | false | true | Is the function f(x) continuous? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH3CAYAAACBwSh7AABvC0lEQVR4nO39e3RU52Eu/j977jfdkEASAnE12MIIGwwYG2ISE4fYiRNIXCdtmqTt6bcnJ0nT/nq62mZ1Za3T0nzza5r2lx4ndbtOGjvHWU3jxnYSsGzjgAELY0AGgQTGsgy6IHQZaTTXPfv++2OQjLiYEbyvZiSez1peRjN7Hr0MM3ue/c47exTHcRwQEREREZEQrkIPgIiIiIhoJmHBJiIiIiISiAWbiIiIiEggFmyiW8iePXuwcOFCPPLII4UeChER0Yyl8EOORLe... | [
"yes",
"no"
] | null | 1 |
math | algebra-1 | write-compound-inequalities-from-graphs | false | true | What compound inequality describes this graph? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAANiUlEQVR4nO3dfVCU1R4H8O8uu7yagEIspGJkWqZxA1QIIfnDssE3QBKSKcZuaVOTt7fRabrdMvTWVFpkDcNoca3reGVAJ43iNsTLRLYXEFAUBnXixUKCK0jmhWcX9v6xsYosKwvE2efZ72emyT07znx/s56zvz17nmdVJpPJBAU5cOAAVCoVUlNTRUcZF9bhWFiHY2EdjoV1OBbWQSSeRnSAidba2io6woRgHY6FdTgW1uFYWIdjYR1E4o26wTYYDKiqqsI/qypw/zQ... | [
"$-5<x<1$",
"$x<-5$ or $x>1$",
"$x<-5$ or $x \\geq 1$",
"$-5<x \\leq 1$"
] | null | 2 |
math | grade-2 | identify-repeated-addition-in-arrays-sums-to-10 | false | true | Which addition statement describes the array? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAB+CAYAAAAeCWbfAAAOVUlEQVR4nO3dP28bRx7G8UcHQ6pOuwbsKg6WOFeRC1KlG5OuHMOF6MJJKRnIIV2kg18Al28gtOoLIHYGXFirIkWQAFrlisAVN0DsVIHW0F3lAFyqUzVXKEub+mOR4nDJXX8/gECR2hnO05A/zGhn5nzfNwIAyxqNxrSHAADAVPxt2gMAAAAAiuRK+guzTQBsaDab0x4CAABTxQw2AAAAYBEFNgAAAGARBTYAAABgEQU2AAAAYBEFNgAAAGARBTYAAABgEQU2AAAAYBE... | [
"1+1+1",
"5+5",
"1+1+1+1"
] | null | 1 |
math | pre-k | tall-and-short | true | false |
Which lamp is taller? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAGgAAAFACAYAAABQlDlOAAAJNElEQVR4nO3by29cZx3G8ec9t5lzxmNnXMdBFalbkYUDFVWkNgi1WTZrqu4jQGVFN931Aog/gD0CIbqgsO6Kkg2UpiRyLBWxaJJNjce5tZ3xZTyec7+wmDhEpGqc2uE8nj6fzcwcjzS/M1+/74yONOZvn2fVxfUcAGBQATCQOlWoYIAKeGHOgXNpPb8nieLUz4wrGOAf6zmc3TWz2LZw5qiLOU+R6tRPK1zoZbg2LFEBsHZzKA6HOc/gzFF3/KACrHv/IBx2Wxh... | 1 |
math | grade-4 | scalene-isosceles-and-equilateral-triangles | false | true | Is this triangle equilateral? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACjCAYAAACwqWkuAAAgMElEQVR4nO3dfVDVdd7/8RecgBMeIxJBpFBxw8RCZ5nJ3aS9ot2WnR3sKn7dUNsyzs6P3WZna2tq02qsaaVbXatrm12tDUNbaENpQy/xJ2Qr482iHkFFvCE1hE6BIoLI3eGc8/ujwM6iJnLO+Z4Dz8eM03j88P2+TlMzbz/z/rw/QS6XyyUAAAAAHhFsdAAAAABgJLnC6ADASFBTU6OqqipVV1dr9+7dslqtuvHGG7Vt2zajowEAAB+jwAaGaMeOHaqqqhooqCsrK8+... | [
"yes",
"no"
] | null | 1 |
math | grade-5 | identify-trapezoids | false | true | Is this quadrilateral a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC7CAYAAABfLOnYAAAXCklEQVR4nO3dXXBUZZ7H8d85fdIdEggkEEJ4s1AEyQwCEkgIOMgyjlLqOOjolujsVDF7YRVeWS67W1Zh7YXleGHt4oU3M2ptOTizu8qiDjuOTumoCAECIvgG+DIZIIT39yTd6c7ZC0Kekx7CW7r7vPT3c0VXdcpTyXnML0//n/OzXNd1BQAAACAnbL8vAAAAAIgSAjYAAACQQwRsAAAAIIcI2AAAAEAOEbABAACAHCJgAwAAADlEwAYAAAByyPH7AhAeP9uZ1qdnMho... | [
"yes",
"no"
] | null | 0 |
math | kindergarten | curved-parts | true | false | Which shape has a curved part? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAG4ElEQVR4nO3da08TWRzH8d9MpxfazrSlXMoGiGgsoJYIEfsABYOXNaExSiDEBzxQ34HvxFfl5Q2Ay6oRiYsJRinXFsrsg4HFza67Cp3/mcvvk5BoTNoT+82cGWbOqWbbtr1aB37fBjYawL4NolMzNMCMAOeTQGcM0FZrtv2qqnpYFGRlCzCWtp2/dMWA/pRTIdFpbTSA11vAH3Xgt21Ar+47/8DIqJnMiNMUAGw2AL3xzT8QNdNRU3s2oKsdCoUFQyMRDI1EMDQ... | 0 |
math | grade-1 | read-a-calendar-ii | false | true | What date is 3 weeks before June 27? | "iVBORw0KGgoAAAANSUhEUgAAAssAAAF2CAYAAACYtNXtAABWrklEQVR4nO3de1yUdd7/8RfDwQMKyNmzeD4hKpkHJEotT1mbue3qurebWlnpXWs/zZtdrdbMTTtaW7ZbrYcOmrklakVqgYLKesQTHhAVEc8Iishx5vcHMUpw2ZDAMPh+Ph4+hLmumfnMh2tm3td3vtc1ThaLxcLhGEiOh8tnEBEREZFK4BEIbcOg/d32rkRugZPl0I8WLp2EToPByRksFnvXJCIiIuLYnJzAUgQHoqFRM+hwj70rkl/JRHJ8cVDGpKAsIiIiUhksFsA... | [
"June 6",
"June 24"
] | null | 0 |
math | grade-4 | what-decimal-number-is-illustrated | false | true | What decimal number is illustrated? | "iVBORw0KGgoAAAANSUhEUgAAAKQAAACkCAYAAAAZtYVBAAACc0lEQVR4nO3bwW0UURBF0R5EVI6DEAiADBAZOABCIA7SGrYsaHuEoOuW5pytVdYsrr8s6/l2v9/vB0R8mP4A8DtBkiJIUgRJiiBJ+fjWF19eb1d9Dp7Mzy9//uPO6QspRia8+UIex3F8/vT1r77x9x/fnu727Kf+PS+vt6e5fe+h8zskKYIkRZCkCJIUQZIiSFIESYogSREkKYIkRZCkCJIUQZJyO/uvQ/Mz/qezpZD52T+83TQDm7o1P2MVQZIiSFIESYogSREkKYI... | [
"0.56",
"0.48",
"0.46",
"0.58"
] | null | 2 |
math | grade-1 | read-a-calendar-ii | false | true | What date is 3 days after March 5? | "iVBORw0KGgoAAAANSUhEUgAAAssAAAF2CAYAAACYtNXtAABZ4ElEQVR4nO3deViVdf7/8SeHRRQFZHcX9w03MhckJtPcsiZzmtFxxhmzvb419rMcJlumzElrKmsmm6nGbNPUSVErSh1QUMwVFXFB3BBxQ1BE1nN+fxBHCW49R4HDwdfjuryEc9/nnPd5c5/7vO77/tz3cbFYLBb2x0FaIpzPQkRERESqgXcIdIiATr9wdCVyA1ws+/5n4dwx6DocXFzBYnF0TSIiIiLOzcUFLKWwJxaatoTOtzu6IrlOJtISy4IyJgVlERERkepgsQA... | [
"March 8",
"March 7"
] | null | 0 |
science | grade-7 | use-scientific-names-to-classify-organisms | true | true | This organism is a New Zealand falcon. Its scientific name is Falco novaeseelandiae. Select the organism in the same species as the New Zealand falcon. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADMCAYAAAAGVtdxAADxTUlEQVR4nOydd7hcVbn/P2vtNjOn93OSk94rIQWBQCAJHQRRpAhKUa+iXjtgvYheRUGxIE2pgoiCKKBokJ4CpPdeTnJKcnpvM7P3+v2xy8ycc0KiRrk/2Z/nmSczs9va5Uy+613f911CKaWSySSO4xASEhISEhISEhIS8v8nUkp0XUckEgkVivuQkJCQkJCQkJCQ//+RUiJDcR8SEhISEhISEhLyn4HjOMh3uhEhISEhISEhISEhIceOUOCHhISEhISEhISE/AcRCvy... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA6IAAADMCAYAAABp7h4wAAEAAElEQVR4nOydebwcVZn+v2epqu6+W3ayQFhCwr6oMKIsCoiAoo6KLMooMDiKOq6Dgo6jjAozoigqKgqIgiNuuKCOoKCyuAQQIvsaIBBC9rt2d1Wdc35/nFPV3TeBBCfKjL96+NxP7u2u5dSp6qaeep73eYVzzuV5jrWWChUqVKhQoUKFChUq/N+ElBKtNUKIZ3soFSpsErIioRUqVKhQoUKFChUq/N+HtZY8z5/tYVSosFnQFQmtUKFChQoVKlSoUOFvA9Zabhp... | 1 |
math | kindergarten | represent-numbers-with-shapes-up-to-5 | true | false | Which group has 3 hearts? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAEcCAYAAAAV9AvgAAAMTElEQVR4nO3dMUxb5xqH8b9tjA/EjjxE99obA+5lhCz1AvJIkSIxkY4IFk9J9nQsUscWlTFVGUGKZCUSYoySBXUJI72+QzZ8lQxRkxowOL4DmEvAbox7eM/nc57fQiHxx1uIH44PPv5irVarVWtI/6lLH5rSSUsA4IuhmJRJSIVR6Z/DUqx21Gr99kfQYwEIu69vS0PV+uk7+WHpX7dOawQAfvjQlH7/U9pvSP+uS/E/Tk7/gNgA8FsmcdoWSfrYlOLNC38AAH5... | 0 |
math | grade-7 | apply-addition-and-subtraction-rules | false | true | The number line shows an unknown number, b. Is b+1 positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAGTElEQVR4nO3dT2yTdRzH8c/T0a5rB1qhUwObA2PQhkgYo2wEEzxpQjhscuEgcsJAiCRcuOjNkHBBDxBDwonowsVyIAE9kYKJa7eB04XKBcYQk/3BOeifdW33eCgtW9gfhLbPnu79OrVPevgkT9N+8uv396thmqYpwMa6urpkGIb27dtndRRUCPccALCUrbA6APCy7t+/b3UEVBj3HACwlD13wc5kMurr61MkElFDQwMrRwAAVIHkrbTGf3qszFhW6XsZed6rlSfglu+... | [
"positive",
"negative"
] | null | 0 |
math | grade-3 | identify-rhombuses | false | true | Is this quadrilateral a rhombus? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACGCAYAAADnyP2rAAAiwUlEQVR4nO3de3SV9Z3v8ffz7NwTSEhIAoSroqAVb9FomWoIhoJOizIz7cjA6am4LK12ijbLoa5xTcfiUCtzyjmnnnOGNRV7Tg+ns4ZZBWS1IpZbVBQMBlAiKQgGQ2LuO/d9e57f+WMnO6QmSCA7Ccnn9Vd2Hnf2b0v2ymf/9u/7/VrGGIOIiIiIiAwKe7gXICIiIiIymihgi4iIiIgMIgVsEREREZFBpIAtIiIiIjKIFLBFRERERAaRAraIiIiIyCCKGe4FiPSnsrK... | [
"yes",
"no"
] | null | 1 |
science | grade-8 | 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 shapes. | "iVBORw0KGgoAAAANSUhEUgAAAngAAACtCAYAAAAj+wKPAAAP3ElEQVR4nO3dfWxU9Z7H8c90ynQKFSjCAoVFqFMpTBFBwHJha3m2WOXRC27YGCDd6gqKm8ZLlBgSXWO9eKHRXLESsCxCXLw3pnKruAGpgorYaHmS9rZI8dIqG0uLQFvaafePe9uIhdJpzzz95v1K/GNmzpzzPb/kfPLpOcXaWlpaWgQAAABjRAR6AAAAAFiLgod2vvnmG9lstmv+czgcSkxM1Nq1a3Xp0iWv9rd48WLNnDmzS7McO3ZMiYmJ6tu3b5e+DwAdCZa8O3n... | [
"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 | 2 |
math | grade-6 | understanding-percents-strip-models | true | false | Which model shows 80%? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAVAAAABLCAYAAAAmjt81AAACMUlEQVR4nO3XOW5TUQCF4fOcoWBsUBALAJZAm5aCXbAMSpbBKqCgTc0OGHrCUCUQiRDrUjxFQmIQOQTZQd/X2E/PVzrVr+tpjDH2j5M3R8nhMjkZAeAnNqfk6kZy+1JyczuZ9r+M8eJg1bMALpZ715LN10fzw63t5O7lua4A/Ohwmbz8nLw9Tl4dJYuDk/mFeAL83tWNuZVJ8mmZLJbfvQDg905b+XUki9VOAbi4BBSgJKAAJQEFKAkoQElAAUoCClDabA7tPdo... | 1 |
math | pre-k | count-sides-and-corners | true | false | Which shape has 5 corners? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAFwElEQVR4nO3dT0tcVxzG8Wc0ukiTdlNa+gLavoS8ir6HlCyyCXTRpQU3bTYKWSRN243WRRB00xhK00UDglTiEJQ6DGMdiXSIjk6HTGYyV+bPndvF7W0TmPgn3vs753fO89kYnXDnLL54QHwwF0VRVO0C5QBohUA/AtG5XcgBl0eBjy8CH44DuWonitaapo9FLrvyLnBhO4g/+Wgc+PSduEKi82qFwFYb2O8CfwbASLMfv8DIKE2XR+OmAOBlCIyEr7xAlKakqV4... | 1 |
math | algebra-2 | identify-the-direction-a-parabola-opens | false | true | The graph shows a parabola. In which direction does it open? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAHyCAYAAADRDLnIAABgH0lEQVR4nO39f3Rc5WHn8X/ml35LlizZkjFYxhgcZCyDwQaDjaGQ4OKEYrcsdDel6bY93Wx+dU/b0x/fNOc09fLN2SzJaUJStt+yISk5m4aG0MSOAFOMbewYY2HLtjBgjC3LNpIsaSTNjGbmzp17v38YCcs/R/h5NCP7/TqHgzVz56NHo5k7n/vomTsB3/d9AQAAADAimO8BAAAAAJcSCjYAAABgEAUbAAAAMIiCDVwm7rzzTj3//POjX//iF7/Q9ddfL8/z8jcoAAA... | [
"left",
"up",
"down",
"right"
] | null | 3 |
math | grade-3 | multiplication-input-output-tables-find-the-rule | false | true | What is the rule for this input/output table? | "iVBORw0KGgoAAAANSUhEUgAAAFgAAAB/CAYAAABrPAW6AAAKoElEQVR4nO2df0wUVx7AP8Muu1S7dTlbxVMRVI6quEq0h62nRkoPUbSniRWSqoca0kZrelfb9M7bMwRMrHqilmtpm0Lbi1pba1oMLqfR+qONWJTTaIq9U1pRUcQfuMiPZZed+4PuXrdyKbjvCdj3STZk3pv5fr989jEzu/OY0Zr2mXR6AGETT9P8ZVxXl9EpwhJdhHR1Efc7SrBklGDJKMGSUYIlowRLRgmWjBIsGSVYMkqwZIISHDrqH5gTykXVIg7Dg4TGrMP82FH... | [
"× 2",
"× 7",
"× 3",
"× 9"
] | null | 0 |
math | kindergarten | name-the-two-dimensional-shape | false | true | What shape is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD1CAYAAABqfoLEAAAFDUlEQVR4nO3YsQ0CUQwFwTtEQExGEfRAMxRDR4jmTAsEi750mokdvHDlfWZmAwAAEqfVAwAA4EgENgAAhAQ2AACEBDYAAIQENgAAhAQ2AACEBDYAAIQENgAAhAQ2AACEzr8e3t/Pf+7gIG6X6/Z5vFbPAABYxgcbAABCAhsAAEICGwAAQgIbAABCAhsAAEICGwAAQgIbAABCAhsAAEICGwAAQgIbAABCAhsAAEICGwAAQgIbAABCAhsAAEICGwAAQgIbAABCAhsAAEI... | [
"rectangle",
"hexagon",
"triangle"
] | null | 0 |
math | precalculus | determine-one-sided-continuity-using-graphs | false | true | Is f(x) continuous from the right at x=9? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAAB1gUlEQVR4nO3deXRU550n/G/tJakklZCEBBgJYzYLJLEJEEgGB8d2TOwY3GkcnyzOm06PM0kn6TPdM316+uSd7vb4pKc7nUk68aQzk/Eyk3QSv8EmNhYEm01IZpNBILEJAVoQJamk2pe71L3vH4VkZMCo4D6USvp+zvHxUVXdX/24t+rWt5567r0mXdd1EBERERGRIczpboCIiIiIaDJhwCYiIiIiMhADNhERERGRgRiwiWiMPXv2YM6cOdi0aRMA4Mknn8Sbb75508c... | [
"yes",
"no"
] | null | 0 |
math | kindergarten | fewer-and-more-compare-by-matching | true | false | Which group has more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAYAAAACGCAYAAADU6V0WAAAK9UlEQVR4nO3dXWzV9R3H8c9paelaSitWWgFbJ/IQIQvjobTdMqJuggg+xcQ9acymhizeeKNoYiw+ZHiji9nFTCbuYiNyoSKCwowLRSe0U0A3lmABWyrSwtH02VJa/rs4K1RUoPT8vr//6e/9SgwS9P/78W7STyk9kIiiKGrtlw70Sl2D0kAkAMAYNC4hFWZLM/Kl0lwp0Xoiiho6fV8LAGBp8URpXGNv6juX50qzClLrAAAYe7oGpf090tF+6ZNeKatzIPUDvPM... | 0 |
math | grade-6 | which-model-represents-the-ratio | true | false | Which model represents the ratio 6:4? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAApUAAABRCAYAAACDt10sAAARnklEQVR4nO3db3AU530H8O/e7kmnk+5Of0ACIf4IDLb8B4HByHaGxu4ALrGpaWI3dZum09gkKZPpTN+0nWYmeZEM4zd51caT1JNmpp1JmtpuU2KbOG1T4nTwgO1giLEFwiAREEhCf086nXT7py8uF9NaAu3u8+zuPfv9vME2d8/+vn6e2fvdPnt3muM4zrV54HwByFuA6YCIiIiI6KYMDcjowMY00FYDaNfmHOfEVNhlEREREVG16skCRl+h/C8ra4Db68sdJxE... | 0 |
math | grade-7 | classify-quadrilaterals | false | true | What name best describes this shape? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADpCAYAAAAeakAkAAAjxUlEQVR4nO3df3DU933n8dd3f69W2h8C8WMlhPDAgB27dmpq4xZIoIaUYH4OUZq6bULukvh6bTNz6XRupnNzMze5tukkM5l2OnU7ufzwTFKfzPEzmCtOUWNoANc4MOYwNhSEfqwsCWm1i1ar/fm9PxaE+GGDpF19V7vPx39o8e7bQn+89NnXvj+GaZqmAAAAABSFzeoBAAAAgEpCwAYAAACKiIANAAAAFBEBGwAAACgiAjYAAABQRARsAAAAoIgI2AAAAEAREbABAAC... | [
"trapezoid",
"rhombus",
"square",
"parallelogram"
] | null | 3 |
math | grade-1 | certain-probable-unlikely-and-impossible | false | true | If you select a marble without looking, how likely is it that you will pick a black one? | "iVBORw0KGgoAAAANSUhEUgAAALEAAAB2CAYAAACHxHLJAAAUf0lEQVR4nO2de0xT5//H32ABaQWh0ug8xjLESQ0O0brp1BrdvsKmhluC4uZ0ZgtolmzKNi/A3B9cNP5EzRav2QwYg4txwLJFXebmQOIFiDMjgBPdBAq4IuUi5dLS5/cH6xmFAr2c9vQczitp0tOey9Oed58+z/P5PO/HgxBCICDAYTzZLoCAgKMIIhbgPIKIBTiPiO0CsMlPP/2EGzduoL6+Ho2NjVCr1VCr1fDx8QFFUaAoCrNmzUJISAjWrVuHhQsXsl1kAQt4TKS... | [
"unlikely",
"certain",
"impossible",
"probable"
] | null | 1 |
engineer | grade-6 | evaluate-tests-of-engineering-design-solutions | false | true | Which of the following could Haley and Elise's test show? Haley and Elise were making batches of concrete for a construction project. To make the concrete, they mixed together dry cement powder, gravel, and water. Then, they checked if each batch was firm enough using a test called a slump test.
They poured some of the... | "iVBORw0KGgoAAAANSUhEUgAAAUwAAAEhCAYAAAAUBJnbAAEAAElEQVR4nOz9WaxlWXrfif3WsKezz3jnG3NEZmRlVlZWZRWrWGSxSIpFkVWkRKlbVqsBw1PLsP1AD3rpNmwI9osfjAasR8NuwDAEdLelljy1OKMlkhLFqaqypqycMyIyxjufe6Y9rsEPa58bEcmiRAlSFw1oAzfvEDfPvXfvtb71ff/v//9/4pd/+Zc9/+76d9e/u/7d9f9H19/5O3/nh/JzNcD27a+S5z0ODx5z6fIO25MBi/kZ3lW8+b1vs5qdMehnlMsVZ6fHLKc... | [
"if a new batch of concrete was firm enough to use",
"if the concrete from each batch took the same amount of time to dry"
] | null | 0 |
math | grade-7 | identify-complementary-supplementary-vertical-and-adjacent-angles | false | true | Which angle is supplementary to \angle{2}? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEFCAYAAADZm5BpAAAhfElEQVR4nO3df1TUdfbH8deEwYASoCGYFEzZov0Q3PJkrbvCOa1pW64Wla5rSBbZbhZsnXYt+wbbarXHNjx1KtGO2LZWhobWMbVzAk62WKe1Ye1rWNYMayqkwuCPGKZwvn+wzBcVlB8Dn5n5PB/nzIGGz/nMJfzjxeXOfVu8Xq9XCFpOp1MpKSlGlwEAAID/OsfoAtA3RUVFKikpMboMAAAA/JeFDnZwS0lJkcVikcPhMLoUAAAAiA52ULPb7aqtrZXT6aSLDQAAECA... | [
"\\angle{5}",
"\\angle{4}",
"\\angle{6}",
"\\angle{1}"
] | null | 0 |
math | grade-1 | read-a-calendar | false | true | Look at the calendar. How many days does it show in January? | "iVBORw0KGgoAAAANSUhEUgAAAssAAAF2CAYAAACYtNXtAABbaElEQVR4nO3de1yUdf7//wfDgCgKiJw8g+JZxGMekCi11Oycn76r2c9ds7ZWa3dtdV12rXbLXLXazdpPtptl5pZ5+KiolaUFnsBUFBXPIiIioiIocmbm9wcxSnAZKDAMPe+3Wzd1rmvgNa+uua7nvK/3dY2T1Wq1JiRkcfDgFS5fLkREREREbl/z5q707OlBaKiXvUuR2+C0b99l64ULBQwe7IOLi7O96xERERFpEIqKSoiNvYiPTyN69/aydzlyi0wHD15h8GBfBWU... | [
"28",
"30",
"29",
"31"
] | null | 3 |
science | grade-5 | animal-adaptations-beaks-mouths-and-necks | true | true | Cows are herbivores, or plant eaters. They eat grass and leaves. The cow's mouth is adapted to grind up and eat plant matter. Which animal's mouth is also adapted to eat plant matter? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEKCAYAAABnkCFsAAEAAElEQVR4nOydeZwUxdn4v9U99+7M7H3Bcp8KiHigIijeZ2I84x010Tce8YjG403yajCJCUYTjfE2oqIxqPFKjHgrIHIjCHLDHix733N2d/3+6OnZmdnZZVHUxF9/+TQ7011dVV1VvfvUU8/zlJBSSk3TMAwDGxsbGxsbGxsbG5v/ThRFweFwIOLxuLSFexsbGxsbGxsbG5v/fhRFQbGFexsbGxsbGxsbG5tvB4ZhoHzTlbCxsbGxsbGxsbGx2XvYAr6NjY2NjY2NjY3... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA88AAAEKCAYAAAAsMWftAAEAAElEQVR4nOy9ebwkVX3+/z7n1Nbr3WZnhl2WiAjuoKCouOAaRYh73I2KRpSoSTQLJiGuSYxRoklERb8Gg4oLiqJGFhFFQBBUGGCA2e7M3LW7azvL74/T3bfvnTsLESXx18+8+nW7q6qrTp061VPP+Tyf5yOcc05rjbWWIYYYYoghhhhiiCGGGOL/JqSUBEGAEOKBbsoQQ/xOQg6J8xBDDDHEEEMMMcQQQ/zfh7UWrfUD3YwhhvidhRwS5yGGGGKIIYYYYoghhvj... | 1 |
math | grade-8 | similar-and-congruent-figures | false | true | Are these shapes similar? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADKCAYAAACfUje8AABDXklEQVR4nO3deVyU5f7/8Reb7AiIgOJG7uK+IO5oVlZmoZaWLVqZZZlWZsvpeFr8/uykaabV8bRo2WkTM21xKTc0TVxSQDRxI2VVcNgUZJnfHwODhLkODIzv5+PhY5x77rnvz5yO8Obic12XndFoNCIiIiIiIhZhb+0CRERERERsiQK2iIiIiIgFKWCLiIiIiFhQjQnY48aNY/r06RWOFRUV4ezszKlTp6xUlYhI9Rk3bhxOTk64uLjg4uKCj48P99xzD5mZmdYuTUR... | [
"no",
"yes"
] | null | 1 |
math | grade-6 | interpret-double-bar-graphs | false | true | A transportation analyst compared various bridges' tolls. Which charges more for a truck, the Hatem bridge or the Tacoma Narrows bridge? | "iVBORw0KGgoAAAANSUhEUgAAAVMAAAIbCAYAAABWqH3oAABFEElEQVR4nO3deVxN+f8H8NetpOVWaLVNyNiaKGtCxMQwY5DEGGPGFyG7sX7HdwbD1/JlkGHs+5JtQsaMMCJkV5aypCxt0l6S5tb9/dGvO3NVt+jce271ej4e8xj33HvOed+mefmc7fOWyOVyOYiIqFx0xC6AiKgyYJgSEQmAYVpJHTlyBGPGjMG5c+dK/Mz333+PMWPGICsrS4OVqfZ23cuWLcOYMWOQkJAgcmVEqumJXQAVLzs7G1OnTlVapqurCzMzM7Rs2RL9+/e... | [
"Hatem",
"Tacoma Narrows"
] | null | 0 |
math | algebra-1 | identify-linear-and-exponential-functions-from-tables | false | true | Is this function linear or exponential? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEqCAYAAAAvYSeKAAAX7klEQVR4nO3db5CV5X3/8Y/LyvoPdwFRFiouYIY1QSMMQac22iAlGTMMTTRWFMxOqca01TZtU43TasYRqxT/YpFijWlSxgyEaDXdBGtsLNVhSfpLjI1g02GFqDCLIpJFUZb19yATZjYY/uh1OJ7l9ZrxwV73vdf1xUfvPXOfcw5be/GGt1MDRtw8JC9ds6XaY+y3cUtOrPYIAABUQV21BwAAgP5EYAMAQEECGwAAChLYAABQkMAGAICCBDYAABQksAEAoCCBDQAABQl... | [
"linear",
"exponential"
] | null | 0 |
science | grade-5 | identify-magnets-that-attract-or-repel | false | true | Two magnets are placed as shown. Will these magnets attract or repel each other? | "iVBORw0KGgoAAAANSUhEUgAAAe0AAABBCAYAAAD8HfzaAAAGLklEQVR4nO3da4hUdRjH8d+ZM5ed2dnd3M2w1DUq2bTL6mZ23Uw0Sbe02AhN8EXYxUoqi95EREEUJZFFKAqhYRT1olK3C5l4CdGItQu0S7hRRkuSm+3FndmZOXN6cdxukLu0Z874P3w/sOybs3MeeGb4zZ7z/P/Huu7p427BEYDT0LoVac06L1ruMgCcJiKuW+4SAPwXPp4A/i5S7gIAAMDoENoAABiC0AYAwBCENgAAhmAsFUAo7P42r94Mo3sIr4hFaAMIidf2ZNV... | [
"attract",
"repel"
] | null | 1 |
technology | grade | parts | false | true | What kind of computer component do you see here? | "iVBORw0KGgoAAAANSUhEUgAAAUYAAAEsCAYAAAC/uBrMAAEAAElEQVR4nMz9d7RtWXbeh/3WzieHm19+lau7qzqiExqpwQCAIGwhmQTNQYmUbNIiZQ5JpOwxODRkWKYpUhqiJcu0SFkUJZkiJRAiAkGBRGoQ3QC60blyeFUv3nxy2Hn5j33mOuvcelWvQSj41Dh1w7vnnL1X+Oac3/zmXOrnfvq/067r4nkeruuilEJrTVEUlGVJo9Egz3PSNCXLMrTWOI6D53l4nsd4OWe5XJKmKWEY0m63CcOQNE1ZLBZsbW3R6/UAGI1GKKU2fm5... | [
"Power Supply Unit",
"PC Card",
"Display Adapter/Video Card",
"Solid-state Drive"
] | null | 0 |
math | grade-2 | purchases-do-you-have-enough-money-up-to-1-dollar | false | true |
An eraser costs 47 cents. Do you have enough money to buy it?
| "iVBORw0KGgoAAAANSUhEUgAAAvgAAAC7CAYAAAAQceoIAACcrUlEQVR4nOzdd3hb5dn48e8ZGpZkyUPe8bYznL0TQgKhEAh7FQoUKJSWvp1AaQuFlpa+pX1Lfx100ElbKGETIKyUABlkkb2d5ThOvKdkyVrnnOf3h2MRQyAOJGT0+VyXL/CRdHTOY0m59dz3uR9FCCGQJEmSJEmSJOmUoB7vA5AkSZIkSZIk6eiRAb4kSZIkSZIknUKOeoDflRCUzg8y9q1uuhKy+keSJEmSJEmSPk1HFOC/0Jjgx9XRjwzcF7YZ1PZYrA+Y3LSm5xM... | [
"no",
"yes"
] | null | 0 |
math | kindergarten | represent-numbers-with-pictures-up-to-5 | true | false | Which shows 1? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAT8klEQVR4nO3dW4xcd2HH8e+cc+Z+2/vN6931/ZLEiZPGAQFRykVpoKGkgaKWwkOLeCuifWlVlZdKPPDQSqgqQq1UVAkJKG0gIaCKAqGQNCQkJEDAdmxn7d219zJ7n+s5cy59mOyu17u2Q/DO3yG/jxRtZufMzJlZfX2u/zOxKIqiGQ/O1qAcgB8hIjvEiUHehgMZ6E9AbMaNomdXTc+WyJvPPQVwztRaNwYTcCjbqlNEdkY5gNNVmPbg5RpYq37rDsUnsvPydqs... | 0 |
math | grade-8 | identify-lines-of-best-fit | true | false | Which graph shows the line of best fit for the data? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAWYAAAFtCAYAAAA04cDVAABMq0lEQVR4nO3deXgU953v+3dVt1r7BhKrkQAPyMiADASxGIHJWDdOiMHC9nB0zfhy8XAuvtdxnid2zk0yTu6cxPZkTsZZMM55wolPGEyeLAQxASLGxwYbYhzLgISwWAzBEpIMsiSjXrT0Ul11/+hFEkIgUHd1S3xfz2OjLnXX91dS9ad/quX3UwzDMFq88NducPlBMxBCCGEiqwLpFpiRAuNtoLR4DONDZ6ybJYQQAmBRBlgvdAceTLRBQWogtYUQQpjH5YePu+C... | 2 |
math | grade-4 | estimate-angle-measurements | false | true | What is the measure of this angle? Choose the best estimate. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABLCAYAAABKvvDBAAAIQ0lEQVR4nO3dfUxV9x3H8Q+U3OxWYiGhVTOvDshaHD5tNc5iqIpNSTsfcDRaEQvqCkpXL8uAZUAzRa3YPxw0KsVpxfqQNu261dmuLqnzYaSrIamKTLQBC5j4ENLeuMtuQi737g8jWVeLoOeeB3m//ro5Jzm/T+5fn3xzfr8TFQ6HwwIAAABgiGirAwzWieZjWrIpy+oYAAAAwIAcUbDXvL5Kz1ZmaHLSVKujAAAAAAOKsTrAQHw9Pi3ZuFCN/zopSfrq319ZnAgAAAA... | [
"15°",
"60°",
"90°",
"120°"
] | null | 1 |
math | grade-5 | identify-rhombuses | false | true | Is this quadrilateral a rhombus? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEPCAYAAAB4ALMPAAAtlElEQVR4nO3de3SU9b3v8c9MZib3MEkIkAAJ4SKoGwt4a+tWj2JVvACiWCtgqZZ6jqenHk9XT89ea++199p2b9eqPfbsbc9Zba1KFdSKF0QUpCIbVLzR4g2Ui0AgJOZ+myRzf84fgWeSMAm5zOSZy/v11/wmM5NvbGg++eUzv8dmGIYhAAAAADFht3oAAAAAIJUQsAEAAIAYImADAAAAMUTABgAAAGKIgA0AAADEEAEbAAAAiCECNgAAABBDBGwklW2vtemZtY1WjwE... | [
"no",
"yes"
] | null | 0 |
math | algebra-1 | special-right-triangles | false | true | Find c. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC3CAYAAAAo7imjAAAfhUlEQVR4nO3de5CU9Z3v8c/T9+t0DzPDcBGRoMZAmUkpGrAIgjExHgUVMUCdVCXqOVUxcUt21UjMqWhSG0vdbFazyTEl5YFNeY4igxc2BCgiq6zGpIKWg6WxKtyFAZxb37unu59+zh8NM7IMMDN0T1/m/aqicJ55pp9vj/98+Na3vz/DsixLAAAAAErCVukCAAAAgHpCwAYAAABKiIANAAAAlBABGwAAACghAjYAAABQQgRsAAAAoIQI2AAAAEAJEbABAACAEhp2wP7... | [
"14 millimeters",
"7 millimeters",
"$7 \\sqrt{2}$ millimeters",
"$7 \\sqrt{3}$ millimeters"
] | null | 2 |
math | pre-k | holds-more-or-less | true | false | Which bowl holds more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANAAAADQCAYAAAB2pO90AABAEUlEQVR4nO29d5Rc2X3f+Xm5cujqnBEaGYMwg4mcxOEMyWGQGCyJoiiLkqy1Fby2j9brsz4+6+O1j498Vtpja21p12uTtkUlmqRJjiRyyMnkAJgITEBGo3Os6srh5f3jdTe60RmF0A28zzkFdL164VbV+9a993d/QXBd150w4FIFijZYLj4+PisgCxCVoC8ELSoIE7rrvlG43c3y8dl6PBAD+WLFe9Kmwu6wpy4fH5/lKdpwvgzjBlyogFiwvBd88fj4rE1U8rQ... | 1 |
math | grade-2 | compare-clocks | false | true | The clocks show three things Billy did Sunday afternoon: Which did Billy do last? | "iVBORw0KGgoAAAANSUhEUgAAArIAAACZCAYAAADTjdlcAAAobUlEQVR4nO3deVxU9f4/8NdhZlgGEEQUkUVRI7dfgua9poZLqLjlvdf2rpWl5q2+j7QstevPcIsWtbqa5c3Mpa9L1iWXMotALTPLBZc0vCq4pSjKIuvAzOf7B3FgZGaYlZkDr+fj4aOzfc7nM9O8mPeZOeeMJIQQII9UOXMm9KmpTtvfrzfzcFNf6ZR9+QYE4s5Dv0IdFOyU/REpBXNJ5HmYy+bLy90DINPExYtODaWzlRffxOUP3nP3MIgaFXNJ5HmYy+aNhayHEpc... | [
"drew a picture",
"ate a snack",
"played soccer"
] | null | 1 |
math | grade-2 | match-analog-clocks-and-times | false | true | What time does the clock show? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEJCAYAAADhBFPCAABXoUlEQVR4nO3deXzbV5kv/o8k+yvbkbzJiS1lsZw0dpzEtVuHlgSKnbYkBerGaQtMC0ycC3RYhqkz8CtwuUPSYeYCF+6Nw5QOFIa6LAGGhjg4QBPaRqY0hhI3Sp1NzmI5ieU4sRzZUrzIi35/uBJ2rOVol+zP+/XyK7b0fM/3aSK/+ujoOefIXC6XC0RERERENCfI450AERERERFFDgt8IiIiIqI5hAU+EREREdEcwgKfiIiIiGgOYYFPRERERDSHpMQ7AYq/iclRjE+... | [
"10:30",
"1:30"
] | null | 0 |
math | grade-6 | rational-numbers-find-the-sign | false | true | The number line shows an unknown number, t. Is t positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAlwAAAApCAYAAADgbPfrAAAF7UlEQVR4nO3dT2gUVwDH8d/sZidhk5CkEmmEiGDpIYghGtdEFDz00CIWVvTgoUGQShWhl4LQUw9WsGcFRS9NaxAqK1TwUi8bL9mNiUYW05OmWhrQBlNMTHY3u9PD/olRY7K6s89Zv59DyJsdwi9MDr+8efPGchzHEQB4yMDAgCzL0sGDB01HQYVwzeF1NaYDAECpHj16ZDoCKoxrDq9bdeFKp9MaGRlRLBbT2rVr+S8DxmUm+5WZ/EXZmTFJkq+hU/62PvnbvjKcDAB... | [
"negative",
"positive"
] | null | 0 |
math | grade-1 | compare-vertices-edges-and-faces | true | false |
Which figure has more vertices? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAIAAAACACAYAAADDPmHLAAAWoElEQVR4nO2dfVzN5//Hn+d0I0JGWPFdDR3Tttoy8duau5mFTeSeUlLRxhjb2I2VsQ3LJAwVlftv7hJfd9sSW42aSojk5tgoVKSIqPP5/XF0lg3dnZvP0Xk+Hj2U0+e63j2u17lu3tfruo5EEAThyj04WwLF5VAmYOApxlgCTYzArhG0NgXJlVJBSC7SdVgGdEHXpmCcXaL8wcoUOpor1WHg6aW4HLJuQ+49OFMC0qIy5QuGxq8fNDFStjXArXKQlld6wUD9oKK... | 0 |
math | kindergarten | coin-names-penny-through-quarter | false | true | Which coin is this? | "iVBORw0KGgoAAAANSUhEUgAAAJAAAACQCAYAAADnRuK4AABjH0lEQVR4nO29W0ybd9Y++nQyig8ERwjDhjpABCQeIwhbpIIUMxJxJL40ZabeF2E2ISORidPJcFF6MSClgl4E1EhhLkqlnck07hDpC/Afqr/kzqRpBgmDNJgW1FgfAeE6YMTJsT+whTDB2EiIffF6Ld73xSbpadqZ/7ekKLbx4T2s3/qtw7Oe9dLOzg7+R/5Hvqn85Ic+gB9atrejO9vb0R0A2NgI7Yz/16Mdeu3zkX9Ini/Mz/J7xZ/7P1le+ne3QNvb0Z1IJAqlUgE... | [
"dime",
"penny",
"nickel",
"quarter"
] | null | 0 |
science | grade-4 | identify-mammals-birds-fish-reptiles-and-amphibians | true | true | Reptiles have scaly, waterproof skin. Most reptiles live on land.
Reptiles are cold-blooded. The body temperature of cold-blooded animals depends on their environment.
A Mojave rattlesnake is an example of a reptile. Select the reptile below. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADMCAYAAAAGVtdxAAEAAElEQVR4nOz9Z5wkV33o/3+qqnPO3dOT487szmzOiqucAAlJSEYYgTBguNgGXTBG1xh8sQEbBNgkAyIjMMiSEJIsFJFW2l1tTrO7k3Po6ZxTVXf9H+inuawk0AoWY+tf79drHnRXOKerv3P6W6dOnRJUVVUVRaFer6PRaDQajUaj0Wj+ZxJFEZ1OhyDLsqol9xqNRqPRaDQazf98oigiasm9RqPRaDQajUbz+lCv1xH/2JXQaDQajUaj0Wg0Z4+W4Gs0Go1Go9FoNK8... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA6cAAADMCAYAAACPx9V0AAEAAElEQVR4nOy9eZhlZ1Xv/9nzcOap5uqururqecw8z0ACISGSMIiCcIV7wfvzqj8QvcpVRPGHEEAZrgFEQeC5iiYGAkgIMUNnTqfT6bmrq4eaq8487nnv3x+n09dAJI1GRJ7zeZ48nXPOPvt9z3vWeWuvvdb6LiGKosj3fcIwpEePHj169OjRo0ePHv85EUURWZZ5ugHrY5CQ/qNn1KPHi9MM4EgbFl3IyHBZuvu82HNMe/To0aNHjx49evT4z08Yhvi+33NMe/z... | 3 |
math | grade-1 | compare-sides-and-corners | true | false | Which shape has more corners? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAALgAAAC4CAYAAABQMybHAAAC5UlEQVR4nO3UsW5UVxhG0X9mbAsBTgqkRDwA4QFc8B48NhL0hPRxWhsscDy6FFdI1DHoxltrVefoNF+xdXbLsiyXtzN/3cxcH2fuloEH62Q3c36YefF45vezmd3ll2V5c7X1LPjxXv0yc/LhZr08P5t5+WStHx6q6+PM+08zf9/O/Hkzs7+6Wx/ETcH5YW15ZubjcWZ//O4BCr61/O8ys992CvxcAidN4KQJnDSBkyZw0gROmsBJEzhpAidN4KQJnDSBkyZw0gR... | 1 |
math | grade-5 | compare-decimals-using-grids | false | true | Which decimal is less than the one shown in this diagram? | "iVBORw0KGgoAAAANSUhEUgAAAJwAAACcCAYAAACKuMJNAAACLklEQVR4nO3awUkDURhG0TeSWlKRhQhiFRKwECuymXE1ErJTJvcx5pydwi9ZXB+C37Ku6zog8jT7A/BYTtdfLJfzrM/BP7e+fo0xrl44sVE43X7j5fntTz/o4/P94W6339rfWi7nh7m9fcj8DUdKcKQER0pwpARHSnCkBEdKcKQER0pwpARHSnCkBEdq2Ra/5knc07Y0MU8yT7rrrXkSUwmOlOBICY6U4EgJjpTgSAmOlOBICY6U4EgJjpTgSJknkTBP2uH2SDOhWbf... | [
"0.6",
"0.2",
"0.5",
"0.9"
] | null | 1 |
math | pre-k | wide-and-narrow | true | false | Which door is wider? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANAAAACoCAYAAACR1WDYAABd3UlEQVR4nO39eaxlSX7nh30iznq3t2/5cq+9qqurq7pJ9gw5FIcUPbZljC2PhDEwxngMWzC8jAABggACAgTBBgTBsCEYsP8wPDD8pzCyNYbhsTSwSPWQEjlsNpvsrq6urjX3fC/fevd71gj9cZZ77j3nLi+3ymzmF8h8994TJ05EnPhF/OK3Cq21PgzgyyH0Yog0r/AKrzADpoCWAW/WYdcGcehr/cPuN92sV3iFlw/fXwHzi2Hy5ZINbzcS6nqFV3iFavRi+Gw... | 0 |
math | grade-1 | which-tally-chart-is-correct | true | true | Kevin had a picnic. He brought some food to eat. Which tally chart shows the right number of each food? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADhCAYAAADyOcJJAABkm0lEQVR4nO3dd5hcZ3n///fpZ8r2XWnVLFmy3LtpNgZDABuHTjCBQAADSSjf0CGEBMIXkm8aJeAfCaGZZnozBowN2Ba44W65q9fVrrbN7MycXn5/nNWsRrOq3q77dV1c1py2z7OSLj776D73o6RpmiKEEEIIIYSYEupsD0AIIYQQQoiFRAK2EEIIIYQQU0gCthBCCCGEEFNIArYQQgghhBBTSAK2EEIIIYQQU0gCthBCCCGEEFNIArYQQgghhBBTSAK2EEIIIYQQU0g... | null | [
"iVBORw0KGgoAAAANSUhEUgAABJMAAADhCAYAAAB81vRdAACmsklEQVR4nOzdd3hc1bXw4d9pU9Wb5YYLGGzTTMeUQG4IJZTkEiCF3FACBEiA0BIgjQvJl0qAcJOQBEICoQUILfRm00w3NraxjXuRZdXpc/r5/hhb9ngkWy6SLLHe5/Fja+99zqw9kizNmr3XVoIgCBBCCCGEEELsEIqiDHQIQgghRJ9SBzoAIYQQQgghhBBCCDF4SDJJCCGEEEIIIYQQQvSaJJOEEEIIIYQQQgghRK9JMkkIIYQQQgghhBBC9Jokk4QQQgghhBB... | 1 |
science | grade-3 | read-a-thermometer | false | true | Select the temperature shown by this thermometer. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAGQCAYAAADbbRRJAAC6yUlEQVR4nOzdeXhU5dk/8O+ZmTNrlslkAzIBgiRhJyACQdwA98S2arG7qO3PajcXqq3VWmtLWytqN63dBFvf9zUuXYIVgaCiJIAIYQmQsCSQSYAkk0wmmX05vz8mMyTMOZPJ5JzJzOT+XJcX4ZyZ8zyJYeae59zPfTMcx3EghBBCCCGEpATZWE+AEEIIIYQQIh4K8AkhhBBCCEkhFOATQgghhBCSQijAJ4QQQgghJIVQgE8IIYQQQkgKoQCfEEIIIYSQFKIY6wkQIgW... | [
"10°C",
"35°C",
"40°C"
] | null | 0 |
math | pre-k | different | true | false | Which is different? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHwAAAB8CAYAAACrHtS+AAACAklEQVR4nO3Ty0orQRRG4b87SQ+8HGfKeQAVfAFnPrxDH+CAl7k50yQGjGnKQSE4105Dr/WNuinYbFhVTSmlLHfJyzZZ98m+RBMyb5LTWXJ5lFx0SbN8L+VhNfZaOoTbP8n8eVt//nbJ9XG9DZqOdZ88viWvu+Rpm7SrfT0w9jSdzmrbJNn0Sdt/O9A0fbX9KEk77io6NIPDGBzG4DAGhzE4jMFhDA5jcBiDwxgcxuAwBocxOIzBYQwOY3CY+VCDd//uhhqN0N3... | 0 |
math | grade-3 | open-and-closed-shapes | false | true | Is this shape open or closed? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABkCAYAAAC8REciAAAJj0lEQVR4nO3dP2zU9/3H8VeqLj5kkPiTyQa6FAkzOIMjxQxNVFeB0jBEip3RqRSGUIVIgahLaEqWX39QqY0CP4lIsX8bkKESESWRiKCDjRRXigcfkrPU9TEZU8lEPkZ3sM6x47/A9+xzeDw2zsfdB6anP3p/P59nZmZmZgIAABTiJxu9AAAA+DER2AAAUCCBDQAABRLYAABQIIENAAAFEtgAAFAggQ0AAAUS2AAAUCCBDQAABRLYAABQoJ+u1xdNjE9m6MvhDF0fTpL... | [
"open",
"closed"
] | null | 1 |
science | grade-3 | identify-rocks-using-properties | true | false | Select the one substance that is not a rock. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANcAAAEYCAYAAADPtGNgAADpjElEQVR4nOz9d7BcaXreCf7OOXnypPc33fXewqMKrlAo191ke5LNlihqNnYkzSoUsWLsXxuxM7GzMYpYzewqYiI2gqI0wdGIokSJRqK6u7qru6sKXQWgDICCB673N/Om994cs3/kBQpVrCZFsqGuZtwHkci8ec9Nc873fO/7vd/7Pq/wUdkwpu3glDjEIQ7xV0BVg9U6JDvgNcELnt7z4iGxDnGIvx6cEkzbe49r2sfPi4fEOsQh/vp4zKOu8fFz4s/noxziEH/... | 1 |
science | grade-8 | compare-concentrations-of-solutions | false | true | The diagram below is a model of two solutions. Each purple ball represents one particle of solute. Which solution has a higher concentration of purple particles? | "iVBORw0KGgoAAAANSUhEUgAAAbAAAAEVCAYAAACBn7B3AABYCUlEQVR4nO29d5wc5Z3n/67qnCYrojTKCJRIIogkTBbJ8HPAxy3sy8bLepfDnI054/UafGBz2AbjPePDXhuzxngXbMPasASTsxGSEEijgLI0I2lmNHmmY9XvjwpdPbGnp3tmuuf7fr1G6qrqqnqq+vnUNzyhFF3XdQRBEAShyFDHugCCIAiCkAtiwARBEISiRAyYIAiCUJSIARMEQRCKEjFggiAIQlEiBkwQBEEoSsSACYIgCEWJGDBBEAShKBEDJgiCIBQlYsAEQRC... | [
"neither; their concentrations are the same",
"Solution A",
"Solution B"
] | null | 0 |
math | kindergarten | select-two-dimensional-shapes | true | false | Which shape is a circle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACTCAYAAAB28ADfAAAGkElEQVR4nO2dXU8bRxSGjyGgNiXtRaVWvajUm7Y/IT+gPxwEIRJISSS4CU0jlSvoxdp4/bF417vTiyUKIQZ77Zkzc855HylSwFgs8MjenX3PvD3nnLsuif6ZEo1qorkjADbmWY/oxTbR78+Jft4l6l3PnDvNYx8W0MzL74mefZi2H/yyS/Tnd62FAGzKqCa6mBBdlUR/T4m28nn7ACQDPnmx3TpFRDSuibbqew8A4JNPTlWOaCvuoQArQDTAAkQDLEA0wAJEAyx... | 1 |
math | grade-8 | congruent-triangles-sss-sas-and-asa | false | true | Which rule explains why these triangles are congruent? | "iVBORw0KGgoAAAANSUhEUgAAAOsAAAF+CAYAAABj1u2RAAA07klEQVR4nO3deXhT550v8O/RLnmR2Wxj4w1jwLsNxgs7CSkkIYH05k4ybWaSNNNM99B22uZpM0/o3E6eZmbSJE3utEmTm2Q67TRtmoY0G1nY8YYB4x3MYhvwim3ZsrVL5/7xSvKCHSyQdBb9Ps/DA0iy/WL09XvOe37v73A8z/MghIieQugBEELmhsJKiERcE9a0tDRwHOf/pdVqkZmZiaeeekqI8RFCvKaEtbu7G11dXXj55ZfB8zw8Hg8uXLiADRs24Cc/+Qnee+8... | [
"These triangles cannot be proven congruent.",
"SSS",
"SAS",
"ASA"
] | null | 3 |
math | algebra-1 | identify-linear-and-exponential-functions-from-tables | false | true | Is this function linear or exponential? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEqCAYAAAAvYSeKAAAd3klEQVR4nO3df1iW9d3/8dcFiFoSlYYSQoG/UMyJB8a3zFxm2A9bGbeGmsxEbNpPDw+Z+YMFS9N0U1mFNXXSJJlsVqPIyAp1M5k1LL1T04FlSpPUbn6Eihd8/+juukeAXsYb4dLn4zj4w/M6+Zzv07+enMeHE4fv21W18gD7hrRTj00nWnqMJjkZ066lRwAAAEAz82rpAQAAAIALCYENAAAAGCKwAQAAAEMENgAAAGCIwAYAAAAMEdgAAACAIQIbAAAAMERgAwAAAIY... | [
"linear",
"exponential"
] | null | 0 |
science | grade-3 | compare-temperatures-on-thermometers | true | false | Select the thermometer that shows the higher temperature. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAQIAAAECCAYAAAAVT9lQAABTyklEQVR4nO2de3wTdbr/P0CLgjSJXM4RmtKwXZUGsKWsJCjYlLVFRbeFFrm4ay/Kxf0dbSsF1xXpBTyrXGyKu6vi0oRzVgWaYvFOqjYo2pQ9C0FoWi9sQ5uKK2iTKVal1Pn9kc6QNJfmMpOZtPN+vfKCTubyTTLfzzzf5/t8n2cESZLk15eAL3uA7j7gMgkBAYEhTtQIIGYUcP1Y4D9HAyO+/okkjxFcN0tAQIArFCIg6osexx+TRwM3XuNQCQEBgaFNdx/w2ff... | 0 |
math | grade-7 | parallel-perpendicular-and-intersecting-lines | false | true | Are these lines parallel? | "iVBORw0KGgoAAAANSUhEUgAAAGEAAABhCAYAAADGBs+jAAALF0lEQVR4nO2de1SUdRrHv4AIjhB04UCecEVPYWsbvl7wuNQS6SvokoihmBtC3vCCgYki5ea9zEtiKLJeskxTl1Wk2hU6JXAUPUIoKC7QyuVACUjKyAwgM8777B84Ey8KMjDvZXQ+fw1z+T1f5jvv+z7v83vO72dFRAQLkmIttQALApqgVimFGvqRQzATvkpeg5zMk0IN/0ghmAn9HZ2xdlkw1q+YLlSIRwbBTHAb4AEAOPNDCuaH/Am11yuFCmX2CGaC64A/GB5Xlhd... | [
"no",
"yes"
] | null | 0 |
math | grade-2 | match-addition-sentences-and-models-sums-to-10 | true | false | Which shows 5+1=6? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUQAAABKCAYAAADDly0CAAAMZ0lEQVR4nO3da2xcZ53H8e+5zYznEoc6iZvYoY6bhBR6CYQo274oREoj8YIXBQVRqa9YadkVFIldxEverQQCUQkQ4h0rsaJctPsCFhDl0rIrbVGrLFC6dEmi2CKX2nGmxJ7ruT774sz4kjj2nPF5xseT/0eyHGfmPOf8fKz/POec5zzHUEqpOQ8uNaEWQqAQQoh7gm1AxYIjRRjPgTHnKvXq0nZvlhBCbK9Tu8C+2Ix/2J+Dd5XiaimEEPeCWgh/bsBbHlxogrk... | 0 |
science | grade-2 | compare-properties-of-materials | true | false | Which is softer? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKUAAADCCAYAAAAo2gI4AAAr+0lEQVR4nO2deXxU1fn/3+fe2TLZFwIkgYRdEVFEEEWliOJC3Qi0/VakX231q9VW1J+KoICCCKiIilLR2mKt1VbjvqFWEBDZBGXfIWwhZJ1MZrvL+f0xJCQhmQzIkuW+X6/7SjJz7z3PmXzmnHvOec7ziBXlUvaIhXgVC4tTSoUBmyvhQAiSbXBxUvh1xRKkxekiXoUeseHfvcaR1xVLkBankyr9afLIa8rpMcXComFsp9uApoQ0TcxQCN3vR6usRPf5MPx+dJ8... | 0 |
math | grade-7 | rational-numbers-find-the-sign | false | true | The number line shows an unknown number, x. Is – x positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAlwAAAApCAYAAADgbPfrAAAGFklEQVR4nO3dPWwTZwDG8eec+GISAnWBqBJfoXRpFClEBJNQoExdEFWN6JAFwQASCFXqULGUdiBFYqCqWhiQmCIISKVBFVKHlsWhg+1gKNQiQi2KCfRDhJACCY5jx9fB2JCSLwrnyyX/32RfrOixzmc99957rw3LsiwBLtbW1ibDMNTc3Ox0FBQJ+xyA25Q6HQB4Wbdv33Y6AoqMfQ7AbaZcuNLptGKxmCKRiKqqqjizBACHhO5ndbQno0TS0rVHljb6PaqbZ+jTlV6... | [
"negative",
"positive"
] | null | 0 |
math | grade-2 | skip-counting-stories | false | true | Each crate has 10 bunches of bananas. How many bunches of bananas are in 4 crates? | "iVBORw0KGgoAAAANSUhEUgAAAZ0AAACnCAYAAADKSYHdAAAl3UlEQVR4nO3de1xP9x/A8de3eyql3IouSoUyhIYhMpcZxhrZmMtmm+vcN2ayTW4z+82Gmdsw/DY0hhF+RG7DGDNZKEpXUS7posv390d8SUmX76Xyfj4eHo9v55zvOe/vcd7nfc7ncy6KzLv/KBGinFsw6w0AJk7brONIhBBloafrAIQQQjw/tFJ0rqbr4364Nt5/1ORWlkIbixSi0pD8EZVJmYvOtiQTAiMtikyG7ddNuZquz9m7hrx33rqsixSi0pD8Ec+bMhWdieG... | [
"70",
"20",
"40",
"50"
] | null | 2 |
math | grade-8 | nets-of-three-dimensional-figures | true | true | Which net will make this figure? | "iVBORw0KGgoAAAANSUhEUgAAAGQAAABkCAYAAABw4pVUAAARO0lEQVR4nO2dfXBTZb7HP21txYaSwwjBpUATVwW2xbaoVOeqbdEd2Vkwpc5uXYRpwxVk7gpNl7njvdu7NFUZYXa1QdTR1UvDwDKyu2J6qbMwKg0vd7BclgYsYMEl4aVeGmByoKQXWuq5fxxyaErTJm1eTpHvTP9ocnLOk3zP83v5/p7ndxIkSZK4DdUgMd4DuI1A3CZEZfjBESKKIiaTCYPBgN1uj/dwbob0A4LFYpEEQZAA5a+goEBqamqK99AU/CAIaWhokPR6vUL... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUkAAADlCAYAAADeIwWJAAAth0lEQVR4nO3df1jT19k/8HcSQH4TLQYFBWJFUECg7XSrboLV6p5pQXttqNOvYmdr+9QKtZ1YFIMW0a4KTtvptErVtdA9a+OPPtPpNK5qp48rQYMK2iaoUAm2xEAAgZDvHzGR3yQhyeeT5H5dVy+vKiZHlDfnfM6578MBoANhDZ1Oh3stwK1GoF4LtNHfDiF25cYB/HhAhDcQ5AFwQCHJKvce6nBJzfQoCCEAMNEfcGN6EKSzm436H4d7AJE++u9ohBD7qdcC5Rr... | 1 |
math | kindergarten | curved-parts | true | false | Which shape has a curved part? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAItElEQVR4nO3df2zUdx3H8df96u9aoNBCy2TUQhlSJhOGAhOcLgR160iUaJhGjMtkUxOtizFs6rJpWNSZqdmmDEfm1G2Z2YIbc2wijB8DRlcslELbHO26tlf6C673u/e9r38cmw2h9K7cvu/7fL6vR9I/2obm9ccz9z3uvt/vOUzTNH0xoD0EjBhA3ATRVXM7gGIXMK8AKM8BHL6oaR71S88inS3/COBuCyW/mZUD1BQmKyS6WiMGcCYI9MaA1hDg9MeTv2BklEn... | 0 |
science | grade-5 | compare-properties-of-objects | false | true | Which property do these four objects have in common? Select the best answer. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADQCAYAAAByQhWRAAEAAElEQVR4nOydd5gkV3W333srde7JeTbn1WpXu5J2FVBEBFkEmWRMsDHYJtgGE2x9GBtMDgZjwGBssEki5yCBACUUdle70mpzmJnNk2PnrnS/P6q7ZzbnIG2/z1PP9PR0V9+qqa761bm/c45QSimAQqFAX18fqVQK13WpUuVCo+s6iUSC1tZWQqHQOf2s6vFf5WKjevxXuZSpHv9VLmXOxvEvlFIqn8/T3d3N9OnTCYVCGIZxlodapcqp4zgOhUKBPXv2MHfu3HN2kq8... | [
"sweet",
"hard",
"soft"
] | null | 0 |
math | grade-5 | median-find-the-missing-number | false | true | Shivani has the following data: If the median is 20, which number could d be? | "iVBORw0KGgoAAAANSUhEUgAAAXkAAAAkCAYAAABsZEqgAAAJe0lEQVR4nO3dfVRUZR7A8e/M8C4oQoIiyFumgqRlGmpibvaGmpqr29qLHY+Vlm62u7WtW2l1ympds3dOetrq7OZqevKFwl3DNJEwVzNhKVgVESXeBHkdmGHm7h8sLJNgg95nZpbz+/zHc597n995nh+/c+fOvXcMmqZpAK2ahWZbE3bNBmgIIYT4f2PAaDDhZwrAy+DT1qJpmtZia6TFbnZzcEIIIfTiawzA1xSA0aZZpcALIUQv02JvolWzYmyxNbk7FiGEEApYbE0... | [
"14",
"27"
] | null | 1 |
math | grade-2 | identify-repeated-addition-in-arrays-sums-to-10 | false | true | Which addition statement describes the array? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACpCAYAAAARMkpIAAAEnklEQVR4nO3dQWrjWBRA0ajwvoxG3pGniafZUWbaWXrUPak2KokrO65/DghCiNB7Gl0+gkwfHx/fb4N4f3//7Xe32+0JkzzH/+0PAEDr17MHAACAv8np3x/+5tPNPzmlHn1/AAAaTrABACAksAEAICSwAQAgJLABACAksAEAICSwAQAgJLABACAksAEAILQpsOd5fpum6cdc8zwf9V7sDwDALpsCe1mWg8bY59HzjL4/AADrTut/8rvvr896js2my/Vpzx59fwAA7vM... | [
"3+3",
"4+4+4+4",
"4+4+4+4+4"
] | null | 0 |
math | grade-5 | median-find-the-missing-number | false | true | Florence has the following data: If the median is 481, which number could t be? | "iVBORw0KGgoAAAANSUhEUgAAAZ4AAAAkCAYAAAC5WlyoAAAH6ElEQVR4nO3deVDU5x3H8ff+dlEuAZVL8EBEBDJoMKAiaHQ8mmpKk7TWsR176HScpKZX+k+m02lq0vSPZnrYjm00bUxqU2uSGmsHrTWaxAsPTiMxXoAnqIlcwsIev/5hw7AC7m/l+e1ul+/rz2cfHj7Pd57H77C77lp0XdcBHG43t50u3LqOjhBCCDF4FkCzWIiyWQnTtDtjuq7rHU4XnS5XYNMJIYQIaRFWK5E2K5rDrUvTEUIIYbpOlwuHW0frdDkDnUUIIcQQ0el... | [
"457",
"483"
] | null | 1 |
science | grade-3 | identify-minerals-using-properties | true | false | Select the one substance that is not a mineral. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANcAAAEGCAYAAAD2aACLAACHS0lEQVR4nO29abQl2VXf+TtDRNzhDZmVWYPmAaEqcOPCKoGkJSFG0W5oCbMkhNtisFpgGRtskLENBhv1Em16NcbNMt3IIK3GDALLjW0kaGgMLAvJRkgqoUIjVVLNJdWUldMb7hBxzu4P+5yIuPfdl5mlyleVJd9dK+veFzeGExFnn733f0/mQ+dErh/DpmNNa1rT50E7AW7dg/vncNzDy47pdrtmrDWt6bHRpoPrx/p9N3Tb7Zqx1rSmx06Zj2rpttknZihrWtM... | 0 |
math | kindergarten | subtraction-sentences-up-to-5-which-model-matches | true | false |
Which picture shows 5 − 1 = 4? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARIAAABKCAYAAAB3ndsNAAAMAklEQVR4nO3daWwU5x3H8e/s4fWu1/casDljQ8BExhAhE0waRQkhSClJKURVBElopap5mUrJu7zoi7Zq86YvoygSAlGiVnIaqSRVSNIE0nCZBMIRiG3AIdjgY9fHHt5zdvpivIcPsPHshfX/vPHMPPs8M/9d+zezO+MdRdM0rS8C18bAp0JMQwgh7smiQKkZVjlgYREofWFNa/fme7OEEA+qTWVg6RrTZ2qLYHWJnjJCCHEvPhU6AnAnAp1jYPLG9AYJESHEbJW... | 0 |
math | grade-2 | place-value-models-up-to-hundreds | true | false | Which place-value model shows 887? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAXwAAACuCAYAAAA1ZrZaAAAh1UlEQVR4nO3daZAkeXnf8W9mVmVWZdbd55w7MzvLuZYW8BqFZPDayFIgAjuEA2PBSjYKLGMRIVgLBxAKCwuwJEcopDB6ZQQYbFlGvCAcksAvZIGCtSBiFYgVsDuz98zszPRdV9aRladfVFXX0ZU1w3R190zX8yFazFRlP/mfbvRkVub//0sliqJo3YXnW2AH4EcIIYQ4BhIKZDV4wIQVHZT1ThQ9UT/qYQkhhDhIb8xB4rlW9y8ndHil1T0aCCGEuPfZATzThDU... | 0 |
math | grade-5 | range-find-the-missing-number | false | true | Sophie has the following data: If the range is 15, which number could n be? | "iVBORw0KGgoAAAANSUhEUgAAAVoAAAAkCAYAAADIDvJzAAALc0lEQVR4nO2deXBUVRaHv97S2UM2ErKQkJXNIBABR2QRAggy4jgoKqDOqKWW41IyjuU2lqPWqKU16GjpOC4gMAoiqKWCAQz7IiJbYkJCFrLvWyedXt/80aGhCcSX8F5a8X5/5b13XudX595z7rn3vtetkSRJArA7ocsKTgkkBAKBQNAfNIBWA74+oNd2n5MkSeqygcXuVW0CgUBwyWHUg68BtHanSLICgUCgBha7a7VAa7F5W4pAIBBculhsoHU4vS1DIBAILl0cTtC... | [
"34",
"15"
] | null | 0 |
math | kindergarten | tall-and-short | true | false |
Which candle is shorter? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAIYAAACpCAYAAADug0VyAAAQ5UlEQVR4nO3cfWzcd33A8fc9+86+O8eOn31O0iRNazu0DUpLLn1YlQ5wJ6AV0KINSidYJ21oiAmmbRJiAmlogvGwMcbSdUhb2SgwkNqNFMrDSvGlD7SF5pzWpGkTnxM7foh9z3e/x/3x851z8bdJHLs+t/68pNPvnn6/+9r3vp+/9zvbLtu27UkNXi5A1gTDRmxAXheEPbAzBB1+cE2WbfvpTL2HJdaTGyLgPVZwLnT5YVejU43YeLImjOZhQoPfFsCdMZwbJIq... | 1 |
math | kindergarten | fewer-more-and-same | false | true | Are there more hummingbirds than daisies? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACgCAYAAAA2PRuAAAAma0lEQVR4nO3dZ3Rc932n8efe6cAUDGbQKwkCJEGQFItEsci0rGKruISxbMtO4rR1sjmb+DhlszkbZ51NvJts1ntOdjfVyclmnc3GRZKt3gvFIkqsIkGRYAMBog/KYAZT78zdF7Aoe61GcUAOyO/nHL4gBjPzf+6Lwe/cucWwbdtGRERERERKwrzaCxARERERuZZowBYRERERKSEN2CIiIiIiJaQBW0RERESkhDRgi4iIiIiUkAZsEREREZES0oAtIiIiIlJCGrBFRER... | [
"yes",
"no"
] | null | 1 |
math | grade-4 | compare-area-and-perimeter-of-two-figures | true | false | Which figure has a greater area? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANIAAACBCAYAAAC1g+QbAAAFm0lEQVR4nO3dS0hUCxzH8d9RR8Q73ctQeDlqEIhzoU0PhgyiGiMQgqB3GUSL3FRKVIjbaBEhFbSMCNxItahFj2UYLoJaBBEFXg2E8nHRkjIHcprOXUwOd/BS4/ifczr1/YDMw3P0J/jljKDoeJ7njc9KQylpOiN99gTgOyocaUm51Fgt/VkpOeOfPO/Jh6BnAeHV9LtUMZjKPnArpb9+y1YG4NumM9LAjDQ2K/2dkso+fM6+g4iAwi0pzzYjSR8zUlnmP+8AULi... | 1 |
science | grade-2 | predict-heat-flow | true | false | Two solid blocks are at different temperatures. The blocks are touching. Which picture shows how heat will move? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAC4CAYAAAAxDlOsAAAV50lEQVR4nO3deXRbZ53G8e+VLFmysziJszU7aZI2zdaQpvsGYemSFlraskwHBhgYmOmZgTlAh8LAlLKVwmFgCgOlQGkLbSndkjbdMkmbpIubxUmTZm+TOIuz2HFsy9p1549XtuNYbuRIvvfafj7n5Ch6JV298pUe3fu776tr2bZt1yZgRws0pSFlIyJSFCUWDPTDlDIYGQSrNm7bVY1ud0tE+rpzB0HJ9hZzZXQQppWbNBIRKYamNGyNwIEEbGsBX2PK3KCwEZF... | 0 |
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