subject stringclasses 4
values | grade stringclasses 15
values | skill stringclasses 445
values | pic_choice bool 2
classes | pic_prob bool 2
classes | problem stringlengths 0 1.12k | problem_pic unknown | choices listlengths 2 4 ⌀ | choices_pic listlengths 2 4 ⌀ | answer_idx int64 0 3 |
|---|---|---|---|---|---|---|---|---|---|
math | grade-2 | compare-vertices-edges-and-faces | true | false |
Which figure has more faces? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAIAAAACACAYAAADDPmHLAAARAUlEQVR4nO2de1xU1d6HnxnwkohDaholgTgKgQJq2kVzKO8XQl+Or5fjafB+TdS8lJYgHikTD6iYYhBq3hUxJUvLuPSa6ZsBKoKSMBwxFFKxEQRk2OcPGl5N6jWbmT2X/Xw+fBwuzvoO62GvtX9r7dkyQRCEq9XwYwVodVAjIGHF2MvA0Q46NoO2jUF2tUoQTv0idiwJMXi+BdjnVdR94twYPBzq7JCwXrQ6uFAOxdVwsQLkv9TUfUPqfNvA0a6urwFu60Cuu+c... | 0 |
math | grade-4 | compare-fractions-in-recipes | false | true | Does this recipe call for more lettuce or tomato slices? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEUCAYAAAAREUFXAABE+0lEQVR4nO3deVxU9f7H8dfMAMMOoSKuWdqm4tpVyyw1vZlLZem10sqr/VLRxLTb9VoWLXYrNamrqdVtscVKSyxNTSstvbkg7oYLKCmgiOwKA7P8/kAnR0BBhwbz/Xw8eDycM2e+53MO9Xi858vnfI/B4XA4OMXhcGC327Farc4fo9GIt7c3Xl5emEwmDAYDIpcDh8OBzWbDarVSUlKC3W7Hy8vL+WM0GvX/g4iIiJRhOB2w7XY7NpuNkpISSkpK8Pb2xs/PTwFC5BS... | [
"tomato slices",
"lettuce"
] | null | 1 |
math | grade-6 | compare-area-and-perimeter-of-two-figures | true | false | Which figure has a greater perimeter? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKoAAAB9CAYAAAAyTfgVAAANvklEQVR4nO3df1DU9b7H8Sc/RVH8hRaJoqZS/opY0gYvBLhIGz9OCYqelBqvJgp6AbWjKXO9KveY1S1ttPBizrkc7uQp9HjEMSYlyzTOubPZOiGzAjMw4pCDa7BKyI9l7x8cN39VKrt897u8H//o1/2wvtEX3/dnd7/zfbtZrVbrD+1Q/RNcs0CnFSEU5+kGgzxg4gB4xBvcfmizWv9hVrosIX7ZTD/wrPqp+yDAG4J9u1MshNKuWcDYAg3tcOEncDd3dj8gIRX... | 0 |
math | kindergarten | subtraction-sentences-up-to-10-which-model-matches | true | false |
Which picture shows 10 − 1 = 9? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAdoAAABKCAYAAAAc9ZVYAAASAElEQVR4nO3daZAcZ33H8W93z7Wz92VJ1m3JliUCluySLCXEiR1EOOIEbKGicByvqZAXFKRC8CtSRaAqRd6YKgIJVCXBEQEnBCxCgLIB2wUugyUks7rslXWtZEt7aa+5j57ufvJivNdMz87MTo+0Gv0/VS5ptnueeX6qXf+m5+nu1ZRSatSE8ymI22AphBBCCLFEPg1aDbg9DCsCoI1mlToSu97TEkIIIRrPvW3gO5fKP1gVgC3N+RYWQgghxNLEbTiThBETzqZ... | 2 |
math | grade-5 | multiplying-fractions-by-whole-numbers-choose-the-model | true | false | Which model represents the product 4×
2
4
? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAaAAAACOCAYAAAB359yrAAAJY0lEQVR4nO3dPW9U6R2G8XvAWMsGshMtWoylYEUiCVDsNBGLEJLtIqsIiY6GIkWqbEGxXyBVvgBFmq3yBVKZLttYmxXCVHbhoA1kJUeKM8hIHmFeAsE6KSYnNtjG83LO+d/nOddPGvllrKNHuorbx7I9rSzLsu5r6dELaWtbepMJAIDCTbSkk0eln34onZ6UWt1XWXb/afSxAABN8tkPpYmHL/ofnJmUfv6D/joBAFC0rW3pu+fSv15Lf3shHXn6pv8E4wMAKNP... | 1 |
science | grade-4 | use-data-to-describe-climates | false | true | Which statement best describes the climate of Buenos Aires? Hint: Summers in the Southern Hemisphere occur in December, January, and February. Winters in the Southern Hemisphere occur in June, July, and August. Buenos Aires, Argentina, is a city in South America. It is located in the Southern Hemisphere. It has a humid... | "iVBORw0KGgoAAAANSUhEUgAAAtgAAALOCAYAAACTXGSDAAD/tklEQVR4nOzdeVxU973/8deZhX3fRAQUFBFcEDcU18RoTIwalyw2SWOT5pekTWvb5HZJk9t70zS3t21y22zdG7M1i4kmimIWo7hEcQMRBUUEBVxYZBuWWb+/P5BRBJXowGDyeT6aypw5M+c9c87MfOY73+/3aEophRBCCCGEEMIldO4OIIQQQgghxNfJN6rAzsrKQtM0NE1jzJgx7o4jvoFWrFiBpmmMHj36mu8rLCzMeTy3/+fn58ewYcP41a9+RUNDw7UH7uO685p... | [
"Summers have more precipitation and higher temperatures than winters.",
"Winters have more precipitation than summers."
] | null | 0 |
math | grade-8 | mean-median-mode-and-range-find-the-missing-number | false | true | Kamal has the following data: If the mode is 7, which number could s be? | "iVBORw0KGgoAAAANSUhEUgAAANUAAAAkCAYAAAAejn8/AAAGjUlEQVR4nO3da1BU5x3H8e85uyy35bYsYlG5i0gkjVExgBIsmjaS0NTEsckk1krbTNrETpq8ybTppLlMZ9LWTDVDapu2pmMuOhq1MkwUqxGUS7wUMW5oQFhRFLzCIrCwe/b0BcIMNhkhPgfM9vm822cPz/+/Z/ntnnP2nF1F13UdwOPz0ePV8Ok6OpIkjYYCqIpCqNlEgKoOjum6rvd6Nfo0bWK7k6SvuWCTiRCzCbPH55OBkiQB+jQNs6qgykBJkjhuTUP1+uQelCS... | [
"7",
"13"
] | null | 0 |
math | grade-2 | which-tally-chart-is-correct | true | true | Emma went to the beach. She saw these things at the snack bar. Which tally chart shows the right number of each snack? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEOCAYAAACzXGCqAABryklEQVR4nO39eXxkV33n/7/OvbWqqrS19lZ3S2673d02tG1s3A5OPNishgCGAA4TEsIStpCQmCQ/JpmQ5DeTEOyZTJIBPA8mQELYEoIxTgA7Y2wHjPfd7r1b6m7tu1R71b3nfP8oqVSbWr2UpJL0eT4eeaCqW6q+Ry2n3/W5n/s5yhhjEEIIIYQQQlSFtdYnIIQQQgghxEYiAVsIIYQQQogqkoAthBBCCCFEFUnAFkIIIYQQoookYAshhBBCCFFFErCFEEIIIYSoIgn... | null | [
"iVBORw0KGgoAAAANSUhEUgAABEQAAAEOCAYAAACAfsKOAAC5DElEQVR4nOzdeXxcdbn48c85Z9bMZN+3Num+AG1ZW0UQEEQEFBVBriIqyuKKLFeRexGvIoro794ri6KguAAXlaWiiEIBBQq0lLJ0b5M2e7Nn9uWc7++PSSaZzGRpmzRp8rxfL15kzpxz5nyTNMl55lk0pZRCCCGEEEIIMSE0TZvqSxBCCDEO+lRfgBBCCCGEEEIIIcThJgERIYQQQgghhBBCzDoSEBFCCCGEEEIIIcSsIwERIYQQQgghhBBCzDoSEBFCCCGEEEI... | 1 |
math | grade-3 | is-it-a-polygon | false | true | Is this a polygon? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADTCAYAAAC7i2TvAAAYD0lEQVR4nO3dTWxU99XH8d+9d2Y8kQYzlmwprmSDI0GFJdsqUXmkRjab8uxwNqWrwKawK2wgO1iZXcgGsoNsDKuGDWbXsrEjZZG2PBojGRVLsYmlDtIgedyM1PHMfXkWd+YyNgb8Mvade+/3I1WNXxKOlCx+Pj7/cwzP8zwBAAAAaAsz7AIAAACAOCFgAwAAAG1EwAYAAADaiIANAAAAtBEBGwAAAGgjAjYAAADQRgRsAAAAoI0I2AAAAEAbpcIuAAfILsutzEuS3NU... | [
"no",
"yes"
] | null | 0 |
science | grade-5 | identify-earths-land-features-using-photographs | true | false | A volcano is an opening in the ground where gasses and melted rock can reach Earth's surface. Some volcanoes are shaped like cones, with tall, steep sides. Others are shaped like domes, with low, curving sides. Select the volcano. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOEAAAC0CAYAAABi8Es+AAEAAElEQVR4nFz9yY+lW7Llh/1sN193Gm+iv222r3+sYpXIYkmkQAkaCaqhNBKgkf4rDTQUJIATFQRBBZEABUEk69Vj1evzZb7MvHmbuNF5d7qv2XubBraPx61KIPJ6uHuc437Otm1may1bJv/iX/zvVQQUJaXCvL+lbwWJAyUn8nzi6mJNKco337+lbVuWnJG80HtH6AdCbPlw+4HXb97y8x//iM9fPuX1m7ccD3va2NA0LVfbnhgc72/2KIoLgeActx9u8f2KV8+... | 2 |
math | algebra-1 | perimeter-area-and-volume-changes-in-scale | false | true | Look at this square: If the side lengths are doubled, then which of the following statements about its area will be true? | "iVBORw0KGgoAAAANSUhEUgAAABoAAAAOCAYAAAAxDQxDAAABl0lEQVR4nL2Uv8riQBTFz7cqxD9gbCJoYyHWtjZa2QQMSLCxs9FG8RkEX0CwSWVjoVjYWVtYKEIKQSQvoKggWqlgcrabXXfNIruLBwbmMBd+5zJ35osk8QF9+wREgJLJJCRJEsvn86HRaPxfEl8om81yOp2+OvpreX8Fj0YjKIqCXC73W6jz+YxqtYr5fI5QKIROp4N8Po9isYh0Oo3lcon1eo1KpQK/34/JZILdbofhcPjckW3bTKVS3Gw2L1PV63U2m02S5GKxoCz... | [
"The new area will be 8 times the old area.",
"The new area will be 4 times the old area.",
"The new area will be\n1\n4\nof the old area.",
"The new area will be 2 times the old area."
] | null | 1 |
math | calculus | determine-one-sided-continuity-using-graphs | false | true | Is f(x) continuous from the left at x= – 3? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAAB5bElEQVR4nO3da2BU5b0G+mfNmpncw4QkJBFJABFqIImgoCAIbqxarVqwVttjrd1qt91V2562pz2t7TmtbE73tvai1na76/ZWd93aeqeBoiBQqEYiBBIQQsgVcmdmMjOZmXU9H4aJBAJkYL2smeT5fWjNJOs/f9bKrHnmzbveJZmmaYKIiIiIiCzhsLsBIiIiIqKxhAGbiIiIiMhCDNhERERERBZiwCaiYTZs2ICpU6fihhtuAADceOONeO2110b8WVVVcfnll+P9998... | [
"no",
"yes"
] | null | 0 |
math | pre-k | count-scattered-shapes-up-to-10 | false | true | How many shapes are there? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAFYCAYAAAAm1oiQAAAVSUlEQVR4nO3dT2pcSbbA4eOXToP24IlW4FGDtiLw3BMX9LjgjR70BuyJ5wbROxF0TWoFmtQeDBYi3yD7lmxLqfx37417Tnzf/PHCRBDn11GpzFebzWYTAABACf/TegEAAMB4BD4AABQi8AEAoBCBDwAAhQh8AAAoROADAEAhAh8AAAoR+AAAUIjABwCAQgQ+AAAUIvABAKAQgQ8AAIUIfAAAKETgAwBAIa9bLwCARv76M+Lrh4j7b61X8rL1RcT7LxFv37VeCUAKXvA... | [
"3",
"8",
"6",
"7"
] | null | 1 |
math | algebra-2 | find-inverse-functions-and-relations | false | true | The graph below shows a function. Is its inverse also a function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABkfklEQVR4nO3dfXxU9Z33//dkJvcJSUgwCcEEEUgFAQVRQahYrLpq3ULbC3u77na7da/t2qt9bPfXa6+9ax8+vHo9erf1arttr+1VdR/d7bXuqqtipFii0CAgEYIJCjFCSAi5TyZzf+bm/P7ASYmAZOB8mUzyev7DY4Y573xyvmfOfObke85x2bZtCwAAAIAjstJdAAAAADCd0GADAAAADqLBBgAAABxEgw0AAAA4iAYbwAT/+q//qqampvHHsVhMDz/8sILBYBqrAgA... | [
"no",
"yes"
] | null | 0 |
math | pre-k | fewer-and-more-compare-by-matching | true | false | Which group has fewer? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMwAAACGCAYAAACR4WX4AAAjN0lEQVR4nO2dd5gb533nPzODMpgBFsAC23shd5e77EUW1Sy5yLYs2UrsuMTnksS+XO7i2HfPpTxXcimXXPzkTr6L9CRRbCUusmUVO5EsU7JkSVShKDax7HK55PbegEUHBphyf2C5kizJ4sbkNs7nP3AHg3e+L7/vvPOb9/39BMuyrOk89GcgaYBuYWNjs4hDAJ8EmxSocIEwrVnWkcRqN8vGZu1zTQk4LmSKH6pc0KYW3WRjY1MkaUBfGqbycD4DYkIv/sE2i43... | 1 |
math | grade-4 | identify-parallelograms | false | true | Is this quadrilateral a parallelogram? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADNCAYAAACCVwcEAAAbK0lEQVR4nO3dfYxc1Z3m8efcqrpV7RdsYxuwYzD2GgOmbfxut21evMwk7JIlm2RmrEGaYdiwCYqUIWglxGa1DIm0kQdpFbJIEWHQKjAaJGYyw4YddpgkhIFgu20a29htA8ZjbONgMAbb+KWrblXdu390+96q9ktXdd/bp16+nz+ie466up4kRnp8OFU/EwRBIAAAAACxcGwHAAAAAFoJBRsAAACIEQUbAAAAiBEFGwAAAIgRBRsAAACIEQUbAAAAiBEFGwAAAIgRBXu... | [
"no",
"yes"
] | null | 0 |
math | grade-3 | open-and-closed-shapes | false | true | Is this shape open or closed? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABkCAYAAAC8REciAAAExElEQVR4nO3dMW8TBxjH4ZeKJY4AqbQw0CwMdGiQMoaMZclSdagEewVfols7dGrnfoRK7diFiTEwIuGFDizOEpCHWnIyukMbiQ5N7Lv37iy/z7Nj37v9fPpHXFksFosAAABSfDT0AwAAwCYR2AAAkEhgAwBAIoENAACJBDYAACQS2AAAkEhgAwBAIoENAACJBDYAACQS2AAAkEhgAwBAIoENAACJBDYAACQS2AAAkEhgAwBAIoENAACJBDYAACQS2AAAkEhgAwBAIoE... | [
"closed",
"open"
] | null | 0 |
math | grade-3 | lines-line-segments-and-rays | false | true | What is this? | "iVBORw0KGgoAAAANSUhEUgAAAG4AAABuCAYAAADGWyb7AAAF90lEQVR4nO3cfWjUdRzA8fdtuz2vPTRcTvc8t9uzmkKWhJFE0iqQCEsLSjDISMxM7QEGPaiZhZFGQgUlEpFBYg9YEujoDzV1t6dzzj24+bCa2445N+9hv/5Yv609z7W7333vPu+/fvy42z7wYr/dHb/PmTRN05CUK8joAaTpJXCKJnCKJnCKJnCKJnCKJnCKJnCKJnCKJnCKJnCKJnCKJnCKJnCKJnCKJnCKJnCKJnCKJnCKJnCKJnCKJnCKJnCKJnCKJnCKJnCKJnC... | [
"line segment",
"ray",
"line"
] | null | 1 |
science | grade-4 | compare-temperatures-on-thermometers | true | false | Select the thermometer that shows the highest temperature. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAQIAAAECCAYAAAAVT9lQAABnt0lEQVR4nO1deXwTdd5+JnfSNOnJ1ZS2tEBbroLalkNhVcCV9QQVRBdR113dVTxW3XcVT/bwBnx3vUF3XTwA391VkUN3wYtWQDlbkEILSendpkna3Jn3j/AbZjJJm2NytM3z+eQznclkMpPO75nn9z0pmqbpZgdQ1wuY3YCLRhJJJDHIIaGAVDEwVgUMlwFUs52mvzPF+7SSSCKJeKFCA0iO93pXRsqA8SlelkgiiSQGN8xu4FgP0OQAfuwFRCaX940kCSSRxNB... | 2 |
math | grade-3 | match-clocks-and-times | false | true | What time does the clock show? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEJCAYAAADhBFPCAABZLUlEQVR4nO3de3zT53k3/o8kW7KN5JOMbQmDZQ42ITY4MUsKaWI7SSFrA5iQpm3SDbNu6ZN1bczapd26DdLDr926Z5guT/s0fdo4bUabNRQTkya4SZCTBicpBhFBQOZgmYNsg2VkS/ggH/T7w5FrYx1unawDn/fr5VeMdH/v75UgvXLp1nVft8TlcrlAREREREQJQRrtAIiIiIiIKHyY4BMRERERJRAm+ERERERECYQJPhERERFRAmGCT0RERESUQJKiHQBF3/jECMY... | [
"three fifteen",
"two thirty",
"three forty-five"
] | null | 2 |
math | precalculus | identify-graphs-of-continuous-functions | false | true | Is the function f(x) continuous? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH3CAYAAACBwSh7AAB0hElEQVR4nO3de3xU9Z0//teZayb3K0kIJNwEDSQgCBgggtUqldYKlsV2bWu37e521Xb73XZ7+e52v9tSt79a221ru26/66q9fNvVarUFg2K5BxEIEEhACBFCQshlkkky13P//ZGLBAJMkvPJTJLX8/HgETI588qbYeac93zmcz5HMk3TBBERERERWcIW6wKIiIiIiCYSNthERERERBZig01EREREZCE22ESTyI4dOzBjxgysW7cu1qUQERFNWBJPciSaPO6++2588pO... | [
"yes",
"no"
] | null | 1 |
math | pre-k | count-scattered-shapes-up-to-10 | false | true | How many shapes are there? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAFxCAYAAAAGddxuAAA4LUlEQVR4nO3da4xc533n+d+pOnXqeqrJbonqbpHSiJQpx6JkiheRIsUXQfxmvNgdyPPCeeEg2Ekwgo3IAyx2EWUys8FawO4Es9BgrEBeGRMbmckEMRaUxqOxHQFyHIOkLFvDzMRaxw6lmDJpstnNru6uqq6qrq7bvmiWTfHalzrnOec5389LX7oePtVd9T/P+f3/xxkMBgMBAAAAsELK9AIAAAAAjA4FPgAAAGARCnwAAADAIhT4AAAAgEUo8AEAAACLUOADAAAAFqH... | [
"8",
"2",
"5",
"9"
] | null | 0 |
science | grade-4 | use-data-to-describe-climates | false | true | Which statement best describes the climate of Amsterdam? Hint: Summers in the Northern Hemisphere occur in June, July, and August. Winters in the Northern Hemisphere occur in December, January, and February. Amsterdam, Netherlands, is a city in Europe. It is located in the Northern Hemisphere. It has a marine west coas... | "iVBORw0KGgoAAAANSUhEUgAAAtgAAALOCAYAAACTXGSDAAEAAElEQVR4nOzdd3hUZd7/8fek995IJxACIaQBCYReRenFgg3U9VF33UVXd62/Z113dZu61t19XBXsCkrRQEBBCEUILSEEEkghJISSQnqbzMz9+yNkICRIkEkm0e/rurhIzpyZ8505J5NP7rmLRimlEEIIIYQQQpiEhbkLEEIIIYQQ4qfkZxOwU1NT0Wg0aDQa4uPjzV2O+BlasWIFGo2G2NhYkz3mz+W6HjVqFBqNhv/85z/mLgWAN9980/i6//3vf293W1VVFRqNBis... | [
"Summers are colder than winters and about the same amount of precipitation falls every month of the year.",
"Winters are colder than summers. On average there is more precipitation later in the year than earlier in the year."
] | null | 1 |
math | grade-1 | ordinal-numbers | false | true | The first picture is a plane. Which picture is eighth? first | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABdCAYAAACfMRFHAAAndUlEQVR4nO3de1wTZ74/8M9AqAQCwcIiXS5ijQWtCNj1Crb2tdXWaqvbbdfbdr11f7ui7dp1Rd12K5yjFS9t7RbR8/t57TlWV3vTauulu7VHsdpaQVDBNWzDxYoaXSIhQUkyvz+GhARymYTJhcz3/Zckk5nxy5fn+WbmmedhWJZlQQghhBBCCBFEiL9PgBBCCCGEkGBCBTYhhBBCCCEC8lqB3dTGot+RO8j+RzOa2mgUCiGEEEIIEQePCuxPr7WhsLrVaeF8XG2ASmd... | [
"plane",
"bear",
"train"
] | null | 0 |
math | grade-5 | fractions-of-a-whole-word-problems | true | false | Malia loves donuts, so her friends give her a giant jelly-filled donut for her birthday. Malia laughs really hard and takes a picture of it. Then, she cuts the giant donut into 4 equal pieces. Malia eats 2 pieces on her birthday. Which model represents the fraction of the giant donut that Malia eats on her birthday? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJ8AAACfCAYAAADnGwvgAAAPP0lEQVR4nO3deZgU9Z3H8Xddfc3RPdwzYrg0oigzY4wsBI1HTIwwgEbNEo9EEvN47obdrKCCiDxBUR9Zr0XXIybRJz4OAjODJmseLzQxiMoMHkE0mIDMjIuE7pnps7qr9o8B1wuFYX71q+75vf6hHbS+n3mej1XV3VW/0lzXdTtz8G4KuguQd1EUIUwNKgw4PALDA6B1Zl335S7ZsZSBZlIlmO+kev+hOgBHlPU2U1FE6C7A20noyMGWFOhd+d6/UMVTRKswens... | 2 |
math | pre-k | circles-squares-triangles-and-rectangles | true | false | Which shape is a triangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAKrUlEQVR4nO3dbYxcVR3H8e85987sw3Qfu+22pVvaKgpCgrQkGANRIkgDQTFNowE10RK1gjExGgSMJGiBROM7wSqQoDylhoCQgFhEEpWQxtLyBkSwlnZLu8s+785ud+bec3wxWyhQlt12+z93Zv6fN5tm2/x/O+fXO3fu0xrvvT9cgtcnYTyFxKPUSYsNtERwRjN058EcnvZ+51joWKqWXdAK8WuTlT8sz8PHC5UWKnWyxlN4tQiHSvCfSbBjSeUbWjK1kFqiSqc... | 1 |
math | precalculus | outliers-in-scatter-plots | true | false | The two scatter plots below show the same data set. Choose the scatter plot in which the outlier is highlighted. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUYAAAFGCAYAAAAW1zbwAAArzElEQVR4nO3dfVBU56E/8O/uCovI7sqqcNWAO8muVlNCKrKECHNjk2wzNZ3+4i8mmCZphbRNSTX0dtKYO3bkenvtbLVOYtQapi2Tubc0mve0ydTkl6vhqgjrUC2CSdC6F6Mpi668rLIvwPn9cdwFjiwscM6+wPcz48g5e9znWcUvzznPm0oQBOEffuDsdaCnH+gTQEQ0rcxQAToNYEkFMpMB1T98gtDQHetqERHFhwI9MKP1ungwPxlYMktMTSKi6aSnH/jsGvC... | 1 |
math | grade-7 | identify-complementary-supplementary-vertical-and-adjacent-angles | false | true | Which angles are supplementary to each other? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADNCAYAAACCVwcEAAAwMElEQVR4nO3dbViU553+8S8oVDABTEmTrRiVlDzQdAIrboJKwBKKG1SepmrWGQFbV9NqxD6pSbdi2lRztMeKjW1M9QBkaFUCCBpSCLVCJA5pNEXi36ahVYxo02a2gUkFCwH+L6xUYzCiA/cA5+eV3jNz3+e8O7mOa66fR09PTw8iIiIiIuISnkYHEDFadXU1mZmZRscQERGRYUIFW0as6upq7r33XmbOnMmkSZOMjiMiIiLDxGijA4gMtqamJjIyMqiuru69FhMTY1g... | [
"\\angle{3} and \\angle{6}",
"\\angle{5} and \\angle{2}",
"\\angle{1} and \\angle{3}",
"\\angle{4} and \\angle{5}"
] | null | 1 |
math | grade-4 | interpret-bar-graphs | true | true | Michelle, a birdwatcher, counted the number of each species of bird at the local county parks. Which bar graph shows the same data? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC9CAYAAACJdQrFAABITElEQVR4nO3deVhU1f/A8fewg4AoIMimA+6IGwnuooCaa+FSppmZpVlmmkumVrjnUlkauaG5lvpLvy645oKiKWoumUYKKCqyqSyyM/P7g5wcQQUdGZXP63l8nubec8/93AM8fe6Zzz1XMSjogBohhHhMS/+vjb5DEEIIIZ4pBvoOQAghhBBCiBeJJNhCCCGEEELokCTYQgghhBBC6JAk2EIIIYQQQuiQJNhCCCGEEELokCTYQgghhBBC6JAk2EIIIYQQQuiQJNhCCCG... | null | [
"iVBORw0KGgoAAAANSUhEUgAABSYAAAHDCAYAAAA5lMRpAADHfklEQVR4nOzdeVxU9f7H8dcw7JuoILihuIvgmvueS5ZZiUt19RZZ3rS62XLb61dW2r7rtbSszLTU0OvaoqUkFbkiKK6Au6Ko7DAwM78/iKkJVFBgEN/Px8OHnu/5nnM+5zDg8JnP9/s1AFZERERERKRCWK1WTphgfw5kmqFQ77ZFREREAHA2gI8RWnpCoCsYUGJSRERERKTCnMi38nuGo6MQERERqd66+4Kzo4MQEREREalJ9uUU/V3fFVp7FVUFiIiIiEjRaJI... | 1 |
math | grade-5 | types-of-angles | false | true | Is this angle greater than, equal to, or less than a right angle? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAAvCAYAAADZ272NAAAJwUlEQVR4nO3de1CVZQLH8e8BBKGQEyaZ6IJuiK4RaO5O2CqsWJlhXlgtnRrIVk0zxdISlWt4Gx1JpyZt14TUScXweMk1s2J3c3VT9CATk44JCJWp6FHpKHI5+0eDo+uNWeFc4Pf5i/c973ue3/vfj3ee8zwGm81mQ0REREREmoSbowOIiIiIiLQkKtgiIiIiIk1IBVtEREREpAndULBNZhOllaUOiCIiIiIi4vo8/veEudzMiPdH0NajLQO6D2DIw0OI6h5FRJcIB8Q... | [
"less than a right angle",
"greater than a right angle",
"equal to a right angle"
] | null | 1 |
science | grade-6 | compare-concentrations-of-solutions | false | true | The diagram below is a model of two solutions. Each yellow ball represents one particle of solute. Which solution has a higher concentration of yellow particles? | "iVBORw0KGgoAAAANSUhEUgAAAbAAAAEVCAYAAACBn7B3AABusElEQVR4nO19ebwcRbn2Uz372bOHJCfhAFnIBsgNWQARFBIgKEsAgctljx+fihAQEZT1sokGRK/4RUBEASVB4CqYEJBNAlGWGEkCQgjZ95z9zN71/dFd1VU9PfvMyek+9fx+yZmprq56u7uefp/3reoeQimlUFBQUFBQcBm0/W2AgoKCgoJCKVAOTEFBQUHBlVAOTEFBQUHBlVAOTEFBQUHBlVAOTEFBQUHBlVAOTEFBQUHBlVAOTEFBQUHBlVAOTEFBQUHBlVAOTEF... | [
"Solution A",
"Solution B",
"neither; their concentrations are the same"
] | null | 0 |
math | kindergarten | subtraction-sentences-up-to-5-what-does-the-model-show | false | true | Which subtraction sentence does the picture show? | "iVBORw0KGgoAAAANSUhEUgAAAJYAAAAyCAYAAAC+jCIaAAAHgElEQVR4nO2dXVMb1xmAn12tVuJDRnyYAA5GEBuw62Rw+LBJL+w7kl55pp6xCR0P/Qf5KZ7JTW86pdMyaSfNTHrj9qIXSTMTZxAhTuvGODSxDQZhO2AwMkistNsLWULSrqRdoUWaznlu0K727L7PnFd79pw9u0iGYRgIBBVGrnYAgv9PRGIJXEEklsAVCibW9/99cJRx2KKcmISHexSLSbFaOTP7CbfnFhgfe5vpqV+6FpgTyolJeLhHqZhMZ6z7Sz9ye24BgNtzC8z... | [
"2 − 2 = 0",
"3 − 3 = 0",
"3 − 2 = 1",
"4 − 3 = 1"
] | null | 1 |
math | grade-7 | transversals-of-parallel-lines-name-angle-pairs | false | true | \line{PR} and \line{SU} are parallel lines. Which angles are alternate interior angles? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD2CAYAAADs6vBqAAAfxUlEQVR4nO3de3BU9fnH8c/mSjCYKJcAckkMXqBAAoGWxGAShGhBS4IUR0VuFSvoKLReGcVYqdaCJbVVHKEaNHaKiqwIaINAQpgwlYR7qSCEcNGSILBi5BbI/v6w2Z+R3UDI2T27e96vGWbkfJOc5zzjH598+Z5nbU6n0ykLcjgckqTY2FhT6whU9A8AAMC9ELMLMEtBQYEKCgrMLiNg0T8AAAD3bFbdwY6Pj5fNZtPevXvNLiUg0T8AAAD3LLmDbbfbtW/fPlVVVcl... | [
"\\angle{UTQ} and \\angle{UTV}",
"\\angle{UTQ} and \\angle{RQT}",
"\\angle{UTQ} and \\angle{PQT}",
"\\angle{UTQ} and \\angle{PQO}"
] | null | 2 |
math | grade-2 | identify-repeated-addition-in-arrays-sums-to-10 | false | true | Which addition statement describes the array? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACTCAYAAAC0026DAAAEx0lEQVR4nO3dMWrjUBSGUWkQpNSSIm0qrSOSKptIlqDejbIkl6k01ZiBFOGZX5LzOAcMKWxxr6uPZztqn5+f14Zf73Q6HT0CAABN0/w5egAAAKhJ9+8PJ6C/0zRNR48AAMB/nGADAECQwAYAgCCBDQAAQQIbAACCBDYAAAQJbAAACBLYAAAQJLABACCoKLDHcWzatr2bxziOsTei5t0AANhPUWAvy7LRGLdJzlPzbgAA7Kf7+SnfvX1+peco9vT4sMl1a94NAIDt+Q4... | [
"5+5+5+5+5",
"2+2+2",
"5+5+5"
] | null | 1 |
math | grade-6 | compare-area-and-perimeter-of-two-figures | true | false | Which figure has a greater perimeter? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJkAAAB2CAYAAADbTjHtAAANhklEQVR4nO3de1BUZ57G8W/btmh7QUDNtKNSuo0YUAejWRJMvEIymlUcMdFkY3SSYoOupWDYJEpEWRHL2EaNFh1NjBmVjJdES03GuJqxwtzEEQNuRkR7d5DEIgYQsUEuTXP2j9YeEUyspU+/p5v3U2VZTR84j/jUafj1Oe/RKYqifN8Itltgd0KTgiS1S2cd9NRDmBEe6gK67xsU5cxN0bEkfxXdCzpfvuV6YOoC4d1dDZSk9rA7obgWyhrh0i3odLPJ9YQsmOQ... | 0 |
science | grade-6 | identify-how-particle-motion-affects-temperature-and-pressure | false | true | The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles. Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature? | "iVBORw0KGgoAAAANSUhEUgAAAmwAAAGZCAYAAAA0Im0SAACHQ0lEQVR4nO3deXwTZf4H8E/OJmnS+wwtV2mCnJWW25UC4gXFdRVciqvsz5Wqq+tBdT1Q6up6UnWXXbXgeiC2iq4HxWNFtHhwmUK5SShnS0oLPdM2bZr0+f1RMjS9j5yT7/sltpnMzPNMaL9857lGwBhj8GOVlRdw6tRpNDc3QSAQeLo6hAAAJBIJoqKiMXToUE9XhfAYxT/ijSj+dU3s6Qp4UmtrK8rKysBYK6RSqaerQ4iDysoLiI2NhUQi8XRVCA9R/CPejOJfZ0J... | [
"sample B",
"neither; the samples have the same temperature",
"sample A"
] | null | 2 |
science | grade-4 | compare-temperatures-on-thermometers | true | false | Select the thermometer that shows the lowest temperature. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAQIAAAECCAYAAAAVT9lQAABomElEQVR4nO1deXwTdd5+JnfSJL3L0ZS2UKAtIIhrWy5h1YIruquAiuKugteqq3isuu+rqHitt4D7rrIq4AUe4B4qcugueFEUWc4WpEChKb3bnM2def8Iv2Emk7Q5JkdLns8nn+lMJnOk+T3z/L4nRdM03eIE6nsAswdw00ghhRQGOCQUoBEDI1XAIBlAtTho+gdToi8rhRRSSBQqtYDkSI9vZYgMGJ3mY4kUUkhhYMPsAQ5bgWYn8HMPIDK5fW+kSCCFFM4eaMS... | 2 |
math | grade-3 | match-analog-and-digital-clocks | true | true | Look at the analog clock: Which digital clock shows the same time? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABWOUlEQVR4nO3deViU1dsH8C8urDJCKaagIObCWO4CaqKlaAloieaaa26Vobm1aT+3SrFXUct9N5cEy7WEUqNUFjOXGLKSRQfRUJFBYAZF3j+MEWSWZ/YZ+H6uqyuG5zznuSO4uDlzn/vYlZaWloKIiIiIiIyihqUDICIiIiKqSphgExEREREZERNsIiIiIiIjYoJNRERERGRETLCJiIiIiIyolqUDIMuTy+UoKipCUWEhiorkKCoqRFFREWrWqgVnJyc4OTnBydkZTo5... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA5AAAAEJCAYAAADiusiGAABgc0lEQVR4nO3deViUVfsH8C+KrLKV4gIKYqZg4Q6oiZqCpagl7lsuYVkamku9b2k/t0qxN1FLBRW3LFMsRS2hxSgVxEwwh6wERgfRUIFBYAZFfn+QI8gM88wwO9/PdXU5M895znM3zdhzzznnPlaVlZWVICIiIiIinbCysjJ2CER608jYARAREREREZF5YAJJREREREREgjCBJCIiIiIiIkGYQBIREREREZEgTCCJiIiIiIhIEGtjB0DGJ5PJUFZWhrLSUpSVyVB... | 2 |
math | grade-1 | match-analog-and-digital-clocks | true | true | Look at the analog clock: Which digital clock shows the same time? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABV7UlEQVR4nO3deViUVfsH8C8u7IySWwg6iLnMWO4CWmJlaAlqifuWS26VobnVr7RcWtxeRe1VcV9SS3EFS7AySmUxc3kd0hQYGURDBAaBGVz4/UGMIMPMMxvD8v1cV1cMc57z3PEyL/ecuc99bAoLCwtBRERERERmUcvaARARERERVSdMsImIiIiIzIgJNhERERGRGTHBJiIiIiIyIybYRERERERmVMfaAZD1qVQq5OfnIz8vD/n5KuTn5yE/Px+169SBo4MDHBwc4OD... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA5oAAAEJCAYAAAD1mFhPAABnc0lEQVR4nO3dd1zV1f8H8BeobFByIiiImoKluAAXDUNLUUvcq9ScZWqu+qVWaMOVopmKe6SVYO4CmuYAMVP7ekmTpVcBccBl3cv8/UFcmfd+Pndw74XX8/H4PuRyz3h7vfS9b84572NWXFxcDCIiIiIi0gkzMzNDh0BkcOaGDoCIiIiIiIhqFyaaREREREREpFNMNImIiIiIiEinmGgSERERERGRTjHRJCIiIiIiIp2qb+gAyPDkcjlyc3ORm5OD3Fw5cnNzkJu... | 1 |
science | grade-4 | use-data-to-describe-climates | false | true | Which statement best describes the climate of New Orleans? Hint: Summers in the Northern Hemisphere occur in June, July, and August. Winters in the Northern Hemisphere occur in December, January, and February. New Orleans, Louisiana, is a city in the United States. It has a humid subtropical climate. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAALOCAYAAACTXGSDAAEAAElEQVR4nOzdd3xU153//9eozKg3VFFFogqhQpOQANGMiTGYGtuxY5M4/tlOnCVtkzjxbvJNstmSNZt1TJJNHHcntrGFi6gGG9GFABUEkhAgkASo11GZen5/yBojEMVmpBng83w8/DC6c2fue+bemfnMueecq1FKKYQQQgghhBB24eLoAEIIIYQQQtxOpMC+hry8PDQaDRqNhsmTJzs6jrgDvfLKK2g0GlJTU2/6sYKDg9FoNISGhqLX6wfc9r3vfQ+NRsNvfvObm97... | [
"Summers have higher temperatures and less precipitation than winters.",
"Summers have higher temperatures and slightly more precipitation than winters."
] | null | 1 |
math | kindergarten | fewer-and-more-compare-by-matching | true | false | Which group has fewer? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAdoAAABeCAYAAACEstXVAAAGJElEQVR4nO3dP3CbdwHG8UfO3ysxZuBwUwazEHdqhtBm5MLSY0i6sfSOgYE7FkaYstAtE8dSJgbuOjHFDL12aC8jSZdsccpAFmofLI3SXBziE8OLkJ3Iyivp95Pe+D6fxVVsvXq/6vAorx25NxgMBjtPk78/Tvr7ybNBAIAZnewlqyeSH76WrJ9Oejt7g8Hth8s+LQA4fi5/Ozn55ePmxvnTyea3mhUGAGbT30+2v0m+eprcf5ysPHzWfMLIAsD8Vk80m5okj/a... | 1 |
math | grade-2 | select-three-dimensional-shapes | true | false | Which shape is a rectangular prism? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAPvUlEQVR4nO3dW2wbV36A8e/M8CaKtGxTvshRbG9tOc0mtpIY3SRo4BRNUXQTxOiiG/QlyUOBvQBF20W7BVoUTR/StzbIYtM+tFsUaNyXwgW2cJBsgey2sRtgY6dJVvbuFraUiy+xvLYoUSJF8TJzTh+GokiJ8p0zPNL/BxgWhyPOkfhxOBwOR8oYY67UYKIMRR88gxA9J6Yg68JIGrYlQF2pGnNqLuphCXHzHt0AsfFycGEoAff1B1UL0WuKPpydh8kanCuDM+c... | 1 |
science | grade-8 | use-scientific-names-to-classify-organisms | true | true | This organism is a Chinese mitten crab. Its scientific name is Eriocheir sinensis. Select the organism in the same genus as the Chinese mitten crab. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADMCAYAAAAGVtdxAAEAAElEQVR4nOy9ebwkVXn//z5bVXX3XWZj2JEdRDZFgaBgFFBEgkYxApKoGI0iP4korl81ROOGQQ3BXVyiUdTEGMwiYtxQcRQMDIgg+w6z3qW7q+psvz9Odc8MDMhyjYbUm9d9cW/f7tOnlr7znOd8ns8jYozROUcIgZaWlpaWlpaWlpaW/51IKdFaI6y1sQ3uW1paWlpaWlpaWv73I6VEtsF9S0tLS0tLS0tLy6ODEALydz2JlpaWlpaWlpaWlpaFow3wW1paWlpaWlp... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA6IAAADMCAYAAABp7h4wAAEAAElEQVR4nOy9d7htV1nv/xlj9rn6rmef3tMTQHqJhuKDmIuo8VIVCMqFiCIIIr9HUS7eC0qVSLEB+ojSHrmKV66ASqghpJKenL7PPruvvmYfY/z+mPtskpDACUbQuD48++GsNuaYc465Mr/rfd/vK4wxpigKtNaMGTNmzJgxY8aMGTPmPydSSmzbRgjxw57KmDHfEzkWoWPGjBkzZsyYMWPG/OdHa01RFD/saYwZc0bYYxE6ZsyYMWPGjBkzZszDA6013+wZzqp... | 2 |
math | algebra-1 | describe-linear-and-exponential-growth-and-decay | false | true | How does f(t) change over the interval from t=1 to t=3? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAABvoUlEQVR4nO3dbXhT550u+luWZPkdy+9gYgMhkBhswNgQCCSkkEBeW2i7yfRM28yVmdnp9G33XKc9PTPdPbs9OTnZZ6btaXab3Xbv7iaZa+bqNFdJdgMxBAIJ1CQYy2CwIcTYxsaALcmW9a61lrTW+eDIsYMByV4PS7Lv35fEstbtP2tJS389evQsk6ZpGoiIiIiISBcZRhdARERERDSbsMEmIiIiItIRG2wiIiIiIh2xwSaiSQ4fPoxFixbhscceAwA88cQTeP311wE... | [
"f(t) increases by 300%",
"f(t) increases by 600%",
"f(t) increases by 6",
"f(t) increases by 9"
] | null | 2 |
math | kindergarten | compare-sides-and-corners | true | false | Which shape has more sides? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAALgAAAC4CAYAAABQMybHAAAH+0lEQVR4nO3d3W9TdRzH8W/XrTMd68SFbigSZuLYzXhQHi6MLhlKwCuv/E/8D/xX/BeEKJCgN2YiCEsUhnEEiXQjC9LRxpU1x4t6cJb29Dz8ns6v79cVuNH+Lt47+0DXYyEIgqDWEvmtKbLdFtkNBMit0YLIZFHk3bLITEmkUNsJgpW67WMB6p2tiIzeb3Z+c7AkcnSiUz+QV9ttkXsNkcctkbWmyEh9t/MB4oYPJoudlkVEnrdFRtp7PgD4IGz5RSAyYvcogF4... | 1 |
math | grade-4 | transportation-schedules | false | true | Look at the following schedule: Hazel got on the ferry at Sandy Shores at 8:45 A.M. What time will she get to Crest View? | "iVBORw0KGgoAAAANSUhEUgAAAcYAAAFECAYAAAC9Gp76AADQUklEQVR4nOydd1hUx9eA36WDVMUKIoKKCqIoIgo2wI4iYkGw98QeY6yxxVii/tRoNNFEwAIYQEUREAvYsUSxxG7svSGIjXK/Pwgb1t2VxZLEfPM+z30e78ycc2eGs3Nmzsy9yhLqJEkIBAKBQCAAQAeg8XTPf7oeAoFAIBD84+ydug+tf7oSAoFAIBD8mxCOUSAQCASCQgjHKBAIBAJBIYRjFAgEAoGgEMIxCgQCgUBQCOEYBQKBQCAohHCMAoFAIBAUQjhGwSfBmWu... | [
"6:15 A.M.",
"12:45 P.M.",
"8:45 A.M.",
"12:15 P.M."
] | null | 1 |
math | calculus | domain-and-range | false | true | What is the domain of this function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABqOUlEQVR4nO39eXBU550v/r97Vbe6JbU2JCGQ2AxGIAkEArMZCMR2vCXgJNi5SeyMM4kzcZKbP3IrNZXkzszP5Zu6M8lUfO1MxjMe25lvZjIhwU4MFhgbDLJkEMggkMAgC9CKlpZ6X87S5/z+UKRBBowazkOr4f2qcrnU6vPWh/N0P+fTT58+bdJ1XQcRERERERnCnOoCiIiIiIhuJWywiYiIiIgMxAabiIiIiMhAbLCJaILS0lI0NjaO/3z+/HkUFhais7MzhVURERG... | [
"$\\{x \\mid x \\leq-1\\}$",
"$\\{x \\mid x \\geq 0\\}$",
"$\\{x \\mid x \\geq-1\\}$",
"$\\{x \\mid x \\leq 0\\}$"
] | null | 1 |
math | grade-2 | identify-repeated-addition-in-arrays-sums-to-10 | false | true | Which addition statement describes the array? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAB+CAYAAAAeCWbfAAAOKUlEQVR4nO3dMUwcVwLG8Y+TOWFd0A4pHBlbWuIUti4F+BKXpyXpz6yUgurkLXI1uLjWO9QuVusmlhtwTmmSglm5QYqFB5Ei0TlmJCcSLhLGUkyUxjvOOtqTt5grnFm8BgKz+9jZGf6/Bi/e9/Z9BdKn9+DNkG3boQAkolwuJ70EAABg2J+SXgAAAACQJSeif7CTBvTPwsJC0ksAAABHhB1sAAAAwCAKNgAAAGAQBRsAAAAwiIINAAAAGETBBgAAAAyiYAMAAAAGUbA... | [
"1+1+1",
"3+3+3+3",
"4+4"
] | null | 2 |
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 | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAC4CAYAAAAxDlOsAAAVaUlEQVR4nO3de3hU9Z3H8feZyUwyCZcA4aISxAcFRW7eL6hFi7ZesDcvvazbVnt5drs+u20frU9tt13rdrdqfXpZt9utrWu1VvEOeJeKclEREBAEAQUCkgBJCEkmc5+zf/wmGUIGmDCTc04mn9fz8EzmNzPn/MJv5jPnfM/55Vi2bdsNcdjSAW0pSNqIiBRFmQWD/XBSJYwOgtUQs+3lrW53S0RK3TlDoGxzh7lzTBAmVZk0EhEphrYUfBCG+jhs6gBfa9I8oLA... | 1 |
math | pre-k | count-shapes-in-rows-up-to-5 | false | true | How many shapes are there? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAACbCAYAAAAX3e8+AAAVKklEQVR4nO3dW4xd1X3H8d85c+bM5VzmcubMfTxje8zYZmaMQTGiwqYGlYZASJQofaqap4i3PgVVqhSpElKlKHnqW9Wn9rFRqqoN0EACiFR1mooSxQFzKQZxM8SAMYbYxpfpw/IYOx6Pz2WvvW7fz4sjiGf+e+0fnr/3Wue/C2tra2sCAAAAEIWi6wIAAAAAZIcGHwAAAIgIDT4AAAAQERp8AAAAICI0+AAAAEBEaPABAACAiNDgAwAAABGhwQcAAAAiQoMPAAAARIQ... | [
"4",
"1",
"3",
"5"
] | null | 0 |
math | grade-1 | square-corners | true | false | Which shape has 4 square corners? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAE6klEQVR4nO3dwUubdxzH8c+T5GmCaRYQdUpGRdfotFEROwriyYGsG1QZ3cHNgqxWSrvtsNFDB/bQQltWSu/7S/Y3dKcdu+5ed9VW0BqeHVJLeVqLNsn39zy/vF+3kMs3yZt8TtEgiqJoc0/6d0farkv7kYCm5QKplJWqXdLHJ6RgczeKHm+5Pgs+O/eRlHu603gwcEIaLTYqBJq1XZeevJCe7Un/7EiZrf3GE0SGViplG01J0vO6lKm/8QTQSgdNvYykjNtT0Ck... | 1 |
math | calculus | domain-and-range | false | true | What is the domain of this function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABrcElEQVR4nO3deXxT950v/I9275Y3bGNjgzGYGGyDwRCzJFDI0pDSQpqS9mbrk04nnaTp5M7Te/v0djqd3txMb9dpmqSdzGSyzHRubjIltIEYQsIaO8FgwGCzGWO8ItuyJVn7OdI5zx+OXcRqw/khC3/er1derWWdD1+dIx19dHwk6VRVVUFERERERJrQR3sAIiIiIqJbCQs2EREREZGGWLCJiIiIiDTEgk1EEfLy8lBXVzf6c1tbG7KystDe3h7FqYiIiGIHCzYRRSg... | [
"$\\{x \\mid x \\geq 6\\}$",
"$\\{x \\mid x \\geq 1\\}$",
"$\\{x \\mid x \\leq 6\\}$",
"$\\{x \\mid x \\leq 1\\}$"
] | null | 2 |
math | pre-k | squares | true | false | Which shape is a square? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAD/ElEQVR4nO3cS3LTQBRG4d92nEFIYAbFAoAps+yWPbCN7CCEOWEaJ65KiBEDEcjDL0mt7tv3njOySna5B1/JlrqlSdM0zeWd9H0pLVbSfSOiwR1MpJOZ9OFIencoTS5vm+bsqvSwyHOnr6WDi2W78f5Q+vSqVUg0tMVKOr+RftxJ35bS9Oq+3QEyStnJrDUlSdcrabp6tIMoZQ+mfjXStOxQKEpAoywBjbIENMoS0ChLQKMsAY2y1Bna18vV7jcRPasHtN9go87... | 1 |
math | grade-8 | congruent-triangles-sss-sas-and-asa | false | true | Which rule explains why these triangles are congruent? | "iVBORw0KGgoAAAANSUhEUgAAAXwAAACxCAYAAADH5gYUAAAmw0lEQVR4nO2de3hU1b3+P3tuuZB7kAABwkVEQEgUKLeWBCsqp1iwFj1YL1C8UUtND/5+WquIaKmlreLxRutRovSUatWD1R7lIBIpJFBuAeUgCggJBIHcCCFkrvv8sWeSSUjIbWb2npnv53nyZJgMyUpm73et9a613q+iqqqKIAiCEPGY9G6AIAiCEBpE8AVBEKKEVgW/tLSURYsWMWzYMOLj40lOTuaaa65hw4YNoW6fIAiCECAuEPy33nqLkSNH0tDQwNq1a6msrGT... | [
"ASA",
"SSS",
"These triangles cannot be proven congruent.",
"SAS"
] | null | 3 |
math | grade-3 | parallel-sides-in-quadrilaterals | false | true | How many pairs of opposite sides are parallel? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACOCAYAAAALm3/GAAAXF0lEQVR4nO3de3TU9Z3/8ddMJiHmTCCXDhKgDShyEZRVdluDIAUUQtCUm1UrCFpCpLBa3VNX7O5x97D4+9XfYeX4swdDWLA0dIsSQC4xkVXopiWeWiwoIrJBQLlkCYQYcoZJMpf9g+Gj7Va5ZCafuTwf/73/wHkdjh5f38+85/N1hEKhkAAAAABEhNN2AAAAACCRULABAACACKJgAwAAABFEwQYAAAAiiIINAAAARBAFGwAAAIggCjYAAAAQQS7bAZLN6o+26WfvrVV... | [
"1 pair",
"no pairs",
"2 pairs"
] | null | 0 |
math | grade-5 | identify-parallelograms | false | true | Is this quadrilateral a parallelogram? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAB0CAYAAAC/kkW5AAAIoElEQVR4nO3dbayWdR0H8O/BoxxBEU2GpBluko5N0x6c1mg23HRFiejmQ0MCWWJokr7QuTbmG6cv3MxpavkwtQTzAS1t2qQ012rksqwZiU1sKJZUoBNJkbsXh+OFpPJ0n/t/39f1+bw59+/eefF9cc723dl9vldfq9VqBQAAaIsRpQMAAECdKNgAANBGCjYAALSRgg0AAG2kYAMAQBsp2AAA0EYKNgAAtFH/dn3XT76TrF6eDIwZ5jiwA955K3nz9eQL5yRHfLV0GgC... | [
"yes",
"no"
] | null | 1 |
math | grade-6 | quadrants | true | true | Which shape is in Quadrant III? | "iVBORw0KGgoAAAANSUhEUgAAAfkAAAH8CAYAAADSe9ZXAAA530lEQVR4nO3df3DU9YH/8dduNglJSEIghPAjRFFAjREFRX4YKkWmKB7+ZBxG2zp6/R6d6eD0nM54XK/Tcypn58ZWqfWu3HWkd/XakcHzSsEiiBCCgQYEAgQuoIYfISEJ+bVhs7vZH98/0uQIPzchn/3s553nY6Yz3U92P58Xbz/7ee3nx37WFY1GowIAAMZx2x0AAABYg5IHAMBQlDwAAIai5AEAMBQlD0C/+93vtGvXrt7HoVBIP/nJT+Tz+WxMBeBGUfKA4dauXau... | null | [
"iVBORw0KGgoAAAANSUhEUgAAApcAAAH8CAYAAACEt4SVAAA/70lEQVR4nO3df3DU9YH/8dduNr9/EUhCAoQgGlBjjAIiv0KlyBV/1N+Mw2hbR6/fozM9nJ7TGc/rdXpO5ezc2Cq13tW7jvSuXnsy2B8ULILKj2DAgECAQANqCISEJOTXJpvdzf74/pEmJYTABj6f/ewneT5mOnY/2f18Xn787Gdf+/589vNxhMPhsAAAwKjjcDisjoAxyGl1AAAAAIwelEsAAAAYhnIJAAAAw1AuAQAAYBjKJQD9+te/1u7duwceBwIB/fCHP5T... | 2 |
science | grade-3 | compare-properties-of-materials | true | false | Which is smoother? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKUAAADCCAYAAAAo2gI4AACLqUlEQVR4nOz9aa9lWXrfif32PJ75nDuPMWZG5FxZrIlsiqRaarUlNwS4Dcs2YBjwCwEG/AEM+IXfGfAnaMCGAQM27EYDjZa6bctqkpIoFskiqyqzco55uvOZxz1vv3jW2VGUWKTU6ogoi7WARETeiLjDOc9eaz3/5z9ofzopy9sB1Ax+tX61Xuua5fDNAs4SaJnw6035uP6rgvzVelOrZsDtQH4/z19+XP9VQf5qvcm1rr+0fPkx/c18K79av1q/eP2qKH+1fun... | 1 |
math | grade-4 | nets-of-three-dimensional-figures | true | true | Which net will make this figure? | "iVBORw0KGgoAAAANSUhEUgAAAGQAAABkCAYAAABw4pVUAAAQaUlEQVR4nO2deVRUV7aHv2IQBQVUlGCgcUQRtdoJohAHcE7UxqfynvoUgkOr3aEQFWKMlkLaqJFg1ltGQUKpEDXGiHYGE0PAAZyCgoKC1WplgRpQpJBJwnDfH7TVYgSpQSiwvrX8A+uefXbxY+97ztnn3CsSBEHAgN5g1NwOGKiLQRA9wyCInmEQRM8wCKJnGATRMwyC6BkGQXRAXFwc48aN4/jx49obEwxoTEZGhuDh4SEAAiDY29trbdMgiAY8fPhQWLZsmUoIC7O... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUkAAAC+CAYAAAC4av29AAAgkUlEQVR4nO3de1zP9///8du7gxIV5vzh0ySJ0JaRiJy2scloDpvDMKyZ76ZoDo3kODYx+2wNMY2cd8hp/GbIRMVHimWl5TA5RCgR6fD+/ZH6iLx1eNfr/a7H9Z8uF969Xo+3vO+93q/38/F4qgA1Qmeo1WquPYS/MyA9B7LlpyNEhTJSgbkhtDCDBtVAhYSkTrmWqebYHaWrEEIAOFmAkdJFiMISMvK+NqoGLWvk/UYTQlSc9ByIvwdXH8LZDDBQuiBR2J3svK8... | 0 |
math | kindergarten | represent-numbers-up-to-10 | true | false | Which group has 9 hearts? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAEcCAYAAAAV9AvgAAAOwklEQVR4nO3dsW/b+N3H8Y+jnA7U0ysM8IELGyKQ4WqP6lbYq1Z5jDPWc1b9L5mtMcpWedWqAzrJY9UbDDDwXd2HgHFOacQ9Q88gyMjFVE1R1Jekfu/XcnVSkd8P8sOHtCzztzWdTqc/30s/xtLtg/TrVACQi5db0nc16Y8N6Q91aevnz9Pp334peiwAm+7Pv5de/iOefbFblw7+Z9ZGAJCH2wfp7/+WfrqXJrH04pdfZ39B2QDI23e1WbdI0qcH6cXDF38BAHm... | 0 |
math | grade-5 | multiplication-input-output-tables-find-the-rule | false | true | What is the rule for this input/output table? | "iVBORw0KGgoAAAANSUhEUgAAAFgAAAB/CAYAAABrPAW6AAAJ9ElEQVR4nO2df0yT2xnHvy8tpTeCIjAYXqytwOodFTXOy0Dkxh8REISNxF8Bo4tCcpUoGmNc/TERSASvRiZDiQbRkRm9xhgWaC+Jc2waQWVzQYcXEbwwEKoyyqUitvTsD2ivSN0KPQdXOJ+kf/QpPM/TD6enb9/3cCpIvukjcAKefCFFcNWbj93GqOhfKYXLx25iosMFM4YLZgwXzBgumDFcMGO4YMZwwYzhghnDBTPGIcG/D3XF3yLcaPVCDXcRcEzpippwN7xcLsV... | [
"× 8",
"× 3",
"× 5",
"× 7"
] | null | 2 |
math | grade-8 | identify-trapezoids | false | true | Is this polygon a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC8CAYAAABCKdlgAAAaKUlEQVR4nO3de5BUZ53G8eecvkwzXCYZLsM1w4ghiQlhICSEgIQYE9dgdFGJl4jRyoasrphkVaTK2limarcQVw1SukXQ8oJRI5roRlxNzJoECBkCDBMSQog4kOE23GGYoed09zn7x1xO98wyzKW7zznd389fdIeuesl01zz9nt95XsNxHEcAAAAAssL0egEAAABAISFgAwAAAFlEwAYAAACyiIANAAAAZBEBGwAAAMgiAjYAAACQRQRsAAAAIIsI2AXs87uSes8rltf... | [
"no",
"yes"
] | null | 0 |
math | kindergarten | triangles | true | false | Which shape is a triangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJAAAACVCAYAAAC3i3MLAAACb0lEQVR4nO3VvW4UVxiA4W/Xaxf8JF2iVFSBOhWXxbVwWzSpCWlSxWltbAnHy1CMkGhQWL2ylo2ep5qjM0fzFa/mbJZlWS7vZv68nbnez9wvA1+128w8PZv59dHMzxczm8sPy/Lm6thjcYpe/jCze3e7Ln65mHnxeK0LvuZ6P/P2Zubvu5k/bme2V/frhnj4Fk/P1lZmZt7vZ7b7LzbgW3xu5d9lZnvcUTh1AiIREImASAREIiASAZEIiERAJAIiERCJgEgERCI... | 1 |
science | grade-3 | identify-properties-of-an-object | false | true | Which property matches this object? Select the better answer. | "iVBORw0KGgoAAAANSUhEUgAAAKwAAADQCAYAAACa0YpiAABM3UlEQVR4nO29WawlyXnf+YvI9Wx3v7V29SJ2sZtkk02RHkkcw7Isja2Be2YwomjDsC2PwQePJY0xD4IlAwb8QG+wBPiJ4AiGHzyASAjGSBqM4BmMJUiyBMrSmFRLaoq9VC/VXeutu589t4h5iIhczj33VlV3dVXf7vMH7nLyZEZGZv7zi2+LL4TWWgNMp1Nu3bpFv98nz3MWWOBRw/d9lpaWOH/+PHEcAyC01noymfDGG2/wxBNPEMcxQRA84q4usABkWcZ0OuXq1at... | [
"translucent",
"colorful"
] | null | 0 |
math | algebra-1 | identify-linear-and-exponential-functions-from-graphs | false | true | What type of function does this graph show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAETCAYAAAAMFHHvAAAZY0lEQVR4nO3dX2xcd5k38GdSO3bstnEX2UlpQ2NRFC9x3zpymz9aqJJqd9XQDihI1AiBENV2BYLerFZiryp2oYhF7N4QQIAoAhGJVCs2UiOl2i64uzf5087GLG7kVPS1QwVJbGjtpnbs/PF5L/LO2G7c1GMf+8yMP5+bzhw/c/yo+XO+Of6d35NLkiQJAAAgFWuybgAAAGqJgA0AACkSsAEAIEUCNgAApEjAZl6Tk5MxOTmZdRsAAFVHwGZefX190dfXl3UbAABVR8B... | [
"exponential",
"linear"
] | null | 0 |
math | algebra-1 | identify-linear-functions-from-graphs-and-equations | false | true | The graph shows a function. Is the function linear or nonlinear? | "iVBORw0KGgoAAAANSUhEUgAAAfwAAAH8CAYAAAA0Uh0TAABt/ElEQVR4nO3daXgU95ku/Ls37RISkhBCIIEMiMWsBmw2YxvbeI/BSfCCl8QzZ5JJ4pzMdea8mXnn5E1ybJ+cayaZiWNnksw43mPHnmA7LGJfLRmEBAgkNiGhHS2NutVbdVd1Vb0f5FaQ2dRS/1Xd6vv3hUtN161H9e+up/Yy6bqug4iIiEY1s9EFEBERkXhs+ERERHGADZ+IiCgOsOETERHFATZ8Ihrg/fffR1lZWf/PwWAQL774Inw+n4FVRYd9bUfxScMBo8sgGhI... | [
"nonlinear",
"linear"
] | null | 1 |
science | grade-2 | read-a-thermometer | false | true | Select the temperature shown by this thermometer. | "iVBORw0KGgoAAAANSUhEUgAAAI4AAAHPCAYAAACFjuJ1AAAf+klEQVR4nO2dXWwb55nv//yQ9TnTTeKiMTloCtirJYstWtc2eXX2wCoJZDc4laXm5gBiqN0WWEQysZs9F6atq4NTydIW2G5E2xcbtKAiAXsTUZX3nKC7Ymwc7C4acpEWXQQlowRYnIBUPrY24qFiWSI5PBcKp6RIydK8HIrj5/kBQqIZzvBV8+t/3nfmnee13bt3rwKGOSL2424AY01YHMYQLA5jCOd+OyoV7vowu9hstoZtTcUpFotQVdX0BjHWoLe3F319fXXb+FL... | [
"55°F",
"40°F",
"70°F"
] | null | 0 |
math | grade-4 | parallel-perpendicular-and-intersecting-lines | false | true | Are these lines intersecting? | "iVBORw0KGgoAAAANSUhEUgAAAG4AAABuCAYAAADGWyb7AAAISklEQVR4nO2dbUxb1xmAnwvEBRI+zIdtMuIAqdY1A4lsU5Jl2ZKm06RQFcgqNWxds05TpmyatvxZJ1Vdqkxbs1T7EFs1VVnVJWkXqKq2Yd1Y1IkEopCNbmtZgH10yXAoBdsEbEP4KDHxftj32ubDIWT43sM9j8QPY/v6hUfnnPc959xjJRQKhZAIR4reAUiWxooR19nbpXcISWVFiDve0sCJlga9w0gqykoY40r3V6IoCv899o7eoSQN4VvckVd+Rt9QP1e975mquxR... | [
"yes",
"no"
] | null | 0 |
math | grade-2 | match-analog-clocks-and-times | false | true | What time does the clock show? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEJCAYAAADhBFPCAABXPElEQVR4nO3deViUVRsG8BsXVkHIFUFBzBQsF1RAzaUULEEt0RI1FXdTQ3NrUUvRzC1FLRfcNZcEcy+hxTAVcMnlc0hTFh0kQ0MHgRlU+P4wRpBZ3hlm5/5dl5cM87znfSLm8pkzzznHqri4uBhERERERGQRqhg7ASIiIiIi0h0W+EREREREFoQFPhERERGRBWGBT0RERERkQVjgExERERFZkGrGToCMTyqVoqCgAAX5+SgokKKgIB8FBQWoWq0a7O3sYGdnBzt7e9j... | [
"5:15",
"4:15"
] | null | 1 |
math | grade-6 | model-and-solve-equations-using-algebra-tiles | true | false | Which equation does this set of algebra tiles represent? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJYAAAA2CAYAAAAlHWAMAAAEgklEQVR4nO3dTUiqWRgH8P9rZXDn3pEoZphA6IOZWfQBBRVBiCQRRhMESUEkRNQuaNHCNtGmlUWEm1xEy6Ao+9i0CftYBINFUQh37kAQ2QeplHXFzHxm4fWSM12vpUfHeH5wQF/P4Tlv/PEcETsSEdGFH/jbC9w+AgECYy+WKQEfMoBf3wE/ywHp4p7oT0+qp8XekpofgcxP3tCTX+TA7z+EUsfYS90+Ah8/A+d+4C8vIPMEQi9wqFg8PmSEMgQAd4+A7PHJC4z... | 2 |
science | grade-4 | predict-heat-flow | true | false | Two solid blocks are heated to the temperatures shown. The blocks are placed so they touch. Which diagram shows the direction heat will flow? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAADWCAYAAAAD8D2GAAAY60lEQVR4nO3dfXAchZ3m8W/Pm2ZGGo1kWZLf37GNjG1sbLABG/NShNdchWMJlyJkk7s9rnLJZu8u2drkqjZ1m0q27jjq6rK52rAp2E0WNjFhr3A2YAwxB8bYYLDj91cMFn7Tu2ak0Wje+/4Ya4Is2R6sUXfP6Pn8g9Xq6fmNNDzqeWa62zBN02xLwYdx6M9CxkREpCQ8BoTccE0Qmn1gtCVNc1ef3WOJSKW7qRY8J+L5L6b6YFF1Po1EREqhPwvHBuB8Co7HwdW... | 1 |
science | grade-3 | identify-solids-liquids-and-gases | true | false | Select the liquid. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKUAAADCCAYAAAAo2gI4AAAW8UlEQVR4nO2de6gcV/3AP+fM7Ozeva+8qrf9tSbmQfqgBts0aUlptbSVWvSPQi0+K0hAQRGlQrFC/qigCP4l+CBYECJVEG0rGkqQIi1oHrbRFqSJNTaN1rS93iT3sbuzM+f7+2Meu3sf6X3svXfunvMJw53Mzs7O3vnc7znfc86cUccviuzsh0EPh2NFGY/h1Ul4M4T1Pty+LtmunZCO1WLQg539yfpE3NqunZCO1STzrymtbXp1TsXhmBsnpaNwOCkdhcNJ6Sg... | 0 |
math | grade-4 | interpret-stem-and-leaf-plots | false | true | During Fitness Day at school, Ellen and her classmates took part in a pull-up competition, keeping track of the results. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC7CAYAAABfLOnYAAAyM0lEQVR4nO3deVxWdf7//8fFIosiiwSKiI1iormm6bjmmgukKSg21agjaoOauZVhmZmTy0wf176WjluZaS7hruCWy2hqZWCZC6m5gGIpomhs5/eHP854BRjoBRjzvN9u3G4X7+u8znmecx1uvDi8r3NZDMMwEBERERERm7Ar6QAiIiIiIqWJGmwRERERERtSgy0iIiIiYkN2c+bMwWKxWH3Z29tTqVIl+vbty4ULFwq90kcffRSLxUJ0dDQAixcvxmKx0KBBA9uml1x... | [
"10",
"8",
"6",
"7"
] | null | 1 |
math | grade-8 | classify-quadrilaterals | false | true | What name best describes this shape? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEACAYAAACJVgHaAAAVBklEQVR4nO3da4xc51nA8WfW9q7r2N2x08ZJKxK3JC2l0u66id0QicauHaclQKCoSCDUOKAiaCpUQCAB4mMRfEAFGgQCJJJWVT8Uml7UlmydegkIUjuXsSXaXGi1NgXiqLXH2I5315fDh/HE4/V4dy5nds7l95OiWI41fqW1Nf88+5x3KkmSJAEAAKRiZNgHAACAIhHYAACQIoENAAApEtgAAJAigQ0AACkS2AAAkCKBDQAAKRLYAACQotXDPgDD8fyZJJ6qX4zvzSX... | [
"parallelogram",
"rectangle",
"rhombus",
"square"
] | null | 3 |
science | grade-5 | match-chemical-formulas-to-ball-and-stick-models | false | true | Select the chemical formula for this molecule. | "iVBORw0KGgoAAAANSUhEUgAAAV4AAADPCAYAAAC9ZrlIAAA5HElEQVR4nO2daZAkx3Xf/5lVfc597OzsCWCxWBAkSPCmQJAAT0kUKVkiqcM0bYUpKeywrA+2+dkRkr5ZYUsOfXAowgrZpkQ7eIi2SClIk7RE8QApHgBBCQQBELvALrDHzO7OTE/fVZn+UJXd2dnV3VXV1TVVM++30Tvd1VWZWdVV/3r18uVLJqWUIAiCIFKDH3QDCIIgjhokvARBEClDwksQBJEyJLwEQRApQ8JLEASRMiS8BEEQKUPCSxAEkTIkvARBEClDwksQBJE... | [
"HF",
"HF2",
"HFN",
"H2"
] | null | 0 |
math | algebra-2 | factor-quadratics-using-algebra-tiles | true | false | Which area model represents the factorization $6 x^{2}+10 x+4=(3 x+2)(2 x+2) ?$ | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAVUAAAEACAYAAAADT+VqAAATi0lEQVR4nO3df2xV9f3H8dc9t5cCF9rGttQi5UcLIgwQqJ1fwUUxIpliTAQTzTanyaJZWDJioomZf22LRpJNTRb8sejmMmVzYyMyUCj+YIqGL6YlLNAhUOmgXGhvK7fQlvbee+73j673K1WqtJ97Pz3nPB//1B4k7zcvc1/9nHvx3lAmk8mc7peO9kjn0lIqIwDAN1QQkiaHpTkTpYpxUuh0Xybzv1221wIA77u+SCo40jPwTeU4aW50oHEBAN/MubR0uFuK9Uu... | 2 |
math | grade-6 | identify-equivalent-expressions-using-strip-models | false | true | This model represents the expression 7w+w+2g. Which expression is equivalent to 7w+w+2g? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAA+CAYAAAARUWyzAAAJKUlEQVR4nO3daWwc5QHG8Wdmb++uE68PbIfEQdjEBBJI3KZpwuXghFBQVARFQmpFW1VtpX6mErSV+oEIUVWoUpFaUQmBkKhAnKUJAkISQ+KihBxNgJImjXIQx+f6rO3dnd3ph3WWGB846njH6/3/Po3feb16FL1aP5l9d8awbduWpBODg3rs2GF92NWheCIhAMVtXWWV2lruzv3s/evzLqaZnvXQw7njDbve1oHuLhfTYCGIBQK6vbpaT6xqUn006nYcAAXIK0kH43F... | [
"10+wg",
"9w+2g",
"9+2w+g",
"8w+2g"
] | null | 3 |
science | grade-4 | animal-adaptations-beaks-mouths-and-necks | true | true | Purple honeycreepers live in the forests of South America. The shape of the purple honeycreeper's beak is adapted to get nectar out of long flowers. Which bird's beak is also adapted to get nectar out of long flowers? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEKCAYAAABnkCFsAAEAAElEQVR4nOy9edxt13z4//581rD3Oc9z741MJZJUk0iIBCUtIoYghjZV1RgSMSQERak0SvRLEWqKoeaUIsSshmo6CEppq4hITRUqVJWildz7POfsvabP74+TPL9cmW7iCtXzfr3u63Wfs9fZ67P3Gs5nrfUZxMyslEJrjSVLlixZsmTJkiVLlvzvRFXx3iM5Z1sq90uWLFmyZMmSJUuW/O9HVdGlcr9kyZIlS5YsWbJkyc8HrTX0py3EkiVLlixZsmTJkiVLdh5LBX/... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA88AAAEKCAYAAAAsMWftAAEAAElEQVR4nOy9eZhkZ1n+/3ne5ZxT1d0zk8lMNpKQjYQliRECQhKCAYKgAdFvAIkBCQpoQJQIIviFLxKQfZHViLKGTZRFxIUAgoDyA0ISSYAsZN/IOjPdXVXnvMvz++PUqa7umSQTGBa17uvqq7uqzvIu55yu+33u535EVTXGSM6ZGWaYYYYZZphhhhlmmOG/J4wxOOcQkZ92U2aY4X8kzIw4zzDDDDPMMMMMM8www39/5JyJMf60mzHDDP9jYWbEeYYZZphhhhl... | 1 |
math | kindergarten | count-sides-and-corners | true | false | Which shape has 5 sides? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAEw0lEQVR4nO3dPW9TVxzH8Z/tJAMl7YDUlKGd+vASeCdIiIWNuRvqWqkj7OzsvAgmJEYQhGCUJoJYgIA4GOz46nRwXUUpDza+93fPw/czESUkZ/hy7znnj5ROCCEcTKSdkTSspGkQsLK1jrTZk345I21tSJ2DcQh3D9teFnJ24Vtp7fFo9sH5Dem3b2YVAqsaVtKjd9LzibQ9krqH09kniAx12uzNmpKko0rqVic+AdRp3tRxkLrtLgWlIDRYEBosCA0WhAYLQoM... | 1 |
math | grade-2 | greatest-and-least-word-problems-up-to-100 | false | true | An archer recalled how many times he hit the bull's-eye in the past 4 days. On which day did the archer hit the fewest bull's-eyes? | "iVBORw0KGgoAAAANSUhEUgAAAYYAAAC9CAYAAAC3Sto/AABDhUlEQVR4nO3dd1zU5h/A8c8xFZkKKi5QwVkF3KMiVq1URaXOiotWrXWP1lXraN2rVq1Vax1txb3A/XPgKlalAlpFiwXErSiggIy7/P44iUTZCGfleb9eecElT5Inl7v75lmJyredr4QgCIIgAB4HPTAAaDO0ta7zIgiCIOjYkRVHAdDTcT4EQRCEt4wIDIIgCIKCCAyCIAiCgggMQoZiJIma6hSaqlOIkUT/BEEoSkRgKIL8JA2zJHWWP/inkIhEIhiJzyV1IeZOEAR... | [
"Thursday",
"Wednesday",
"Tuesday",
"Monday"
] | null | 0 |
science | grade-4 | compare-temperatures-on-thermometers | true | false | Select the thermometer that shows the highest temperature. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMYAAAFICAYAAAALVoFBAABR3klEQVR4nO29a5BcR5Uu+u2q7paq9LC7W69+mHOQu9tjZD3M2JYFZmQ8c8bYZjBgxMQY2wT3xoTN6w4wnF8nAmIihj/zhzHHF27ATDA2DgMBeOAO4NclxhIcpBZ2oNZjLlZL8syoW7JldTe2pSq7JfU+P6r2rtyZKzNX5s5d1ba1IhSprq6VX67cub4vH7v3juI4jl+YB47UgFcvAOdjXLSL9pazrghYUQZGq8DaHiB64fU43vtKp5t10S7a4rGtK4GuyVrjh4E... | 1 |
science | grade-2 | identify-living-and-nonliving-things | true | false | Select the living thing. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK8AAADMCAYAAAAF8vOBAADOoklEQVR4nOz92Y9kW5beif32eAYbfAiPiHtvTpVVLLKyssgmKbYe2GK/CUIDAvSn6E+S3gmoIQECCIktqFuAmkJ1UwPAZrKGrMrhTjH5YGZn2KMe1jbzuMmiUMyohxZQDjgiM66Hudk566y91re+71vqjx9r/Xsb2Bn+9utvv/5H+XXI8O9O8HWAGwv/s2v5e/23gfu3X/9j/9oZ+Hsb+d/H/Pz3+m8D92+//v/h6xynsT7/nf2rfvB/+7/5X1NUJefMKR45zQe... | 0 |
math | grade-2 | name-the-three-dimensional-shape | false | true | What shape is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEMCAYAAAD+lMGhAAAazElEQVR4nO3de7BlZXkn4N/ubvpG0900t0a5qiAiCt4QK0F0jBrHStRMokZLqVhimaqkMjWZmSpnaq5WTWZSmalMMjVxgnEKU8ZLdPAyJN4RjaN4ARGBphFokEu3QtM0Td/pPX+ssw+n9zmne+/Te6+1v3Wep+rUPmefddZ6G9Yf7/r2+71vp9vtdgMAAIzEkqYDAACANpFgAwDACEmwAQBghCTYAAAwQhJsAAAYIQk2AACMkAQbAABGSIINAAAjtGygo269LvnCv0/... | [
"cone",
"rectangular prism",
"cube",
"pyramid"
] | null | 1 |
math | kindergarten | equal-sides | true | false | Which shape has 3 equal sides? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAE5UlEQVR4nO3dT08dVRzG8WfucMcILVZJIEQbJQ1UTVx0IyZdNO3C1+Gb9E107abFpYnIxgRa0uK9GRfXY8lte2Bmzjzz7/vZ3VwYzuKbA/fkd0JWlmV5eiX9fildLKVFKaCxjUy6m0uHm9JeIWWnb8vy+XnXy8KYHW9LGyeXqxf7hfRwa1Uh0NTFUnrxWvrzSnp5Kc3OF6s3iAwp3c1XTUnSq6U0W157A0gpNPVPKc26XQqmgtBgQWiwIDRYEBosCA0WhAYLQoM... | 1 |
math | grade-7 | mean-median-mode-and-range-find-the-missing-number | false | true | Paul has the following data: If the median is 15, which number could h be? | "iVBORw0KGgoAAAANSUhEUgAAAMIAAAAkCAYAAADb/OWuAAAFOElEQVR4nO3d3W9TdRzH8fc57dpS9rwBW7eh7MkBwtgycIYLg+FBkRsxGjSaqDFqgsSYmHjp3+CN8UaJZkYkihJkCjIgQQXBIA8y1s6NZG03hG6ubTbWrqfHi25jZSWT5Zy2276vu/7a7vvZWb/t+f3OOaui67oOEIvB2BjE44COEAuXAqoKDgdYrRNDuq7rkTGIRDKbTYhMsNvB7gBrLCZNIBavSAQsVlCj0gRikYtGQNW0TMcQIrM0DVRdJsZikdN1UDMdQohsII0... | [
"12",
"17"
] | null | 0 |
math | grade-2 | write-subtraction-sentences-to-describe-pictures-up-to-two-digits | false | true | Which subtraction sentence does the picture show? | "iVBORw0KGgoAAAANSUhEUgAAAfQAAADICAYAAAAeGRPoAAA18klEQVR4nO2daXBc13mm37v0CjR2EgRAEiRBcBEXibIpiZIpy4ppRZtlR85UEpUzTjkVl6vmR5KaVFyeilNTziTlSSo/kqmkaqrGdhypyuOREsc1lu1IGdFawkULKe4ECIIk9qXRG7r79l3nB9gNNHq73bcbaDTf5w9xu/t+9zw8dc53l3PPESzLskAIIYSQDY243gUghBBCiHOY0AkhhJAGgAmdEEIIaQCY0AkhhJAGgAmdEEIIaQCY0AkhhJAGgAmdEEIIaQDkagc... | [
"33 − 7 = 26",
"33 − 6 = 27",
"34 − 8 = 26",
"32 − 7 = 25"
] | null | 0 |
math | grade-2 | skip-counting-stories | false | true | Each branch has 10 pears. How many pears are on 3 branches? | "iVBORw0KGgoAAAANSUhEUgAAAVcAAACLCAYAAADVutr4AAAfHUlEQVR4nO3deXjM5xbA8e9kQRbZCVISIkIjoYhGRCT2/aLErtZraXFLUWktbVC0vSVFqLaWa9+XIJYSgra2iBRNK0hssSQiIhHZ7h8TIyMJskxG4nyex/PMzG87M07OvPP+3t/vVSQmnc9EiDfcrLk9APh88mYtRyLEq82a2wMdbQchhBClUbEU16hkXZyOVMH9RCXiUxXFcUghCkVyVhRWoYvrrrsGzL5s8tIEDLxjSFSyLucT9BkVblnYQwpRKJKzojgUqrhOumR... | [
"50",
"30",
"60",
"20"
] | null | 1 |
math | grade-5 | parts-of-a-circle | false | true | What is \line{BC}? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADJCAYAAABWm0bCAAAnaklEQVR4nO3dd3gVZcL+8fucVFJIgRQ6gRCUXkMgIAIBBRVCURdW19+6Ky661l1111dBXsSyDX3XlXUXlFWxoFhwKYIQkBIwFCG0QIKUJCQBQgIhPZnfH8iQIxBBykxOvp/r4vKZ58w55w7OH3eGZ2YchmEYAgAAAOAWPK0OcC04HI6r9tn8fgQAAAA7qRcFnxIOAACA+sJpdQAAAAAAV47T4XBo5cqV57zQr18/NWnS5Jz5/fv3y+Fw6J///KdmzZolh8OhysrKqx5... | [
"diameter",
"radius",
"center"
] | null | 0 |
math | grade-1 | select-three-dimensional-shapes | true | false | Which shape is a rectangular prism? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAZK0lEQVR4nO2dW3Cb5ZmAH1tnS7EkO5FE7Nhu0ljsbLDbTTYxFyEc2nQGSHYvyF4USq843HRnYMrdTpl2etdO6SUUbraBXizcrFNgOJMws3FSA5WTnUV2k1qOCJISWZJlnSV7L379P5KtJDofv2eGMTr+X6zHr97v/U59m5ubm740/C0O0RxkNxEI2g51H+xQwf4BsGuhz5fa3Ly41upmCQTlc2QQ1Etx6cZdWnAaJasFgnYjmgN3DL5Jw2Ic+tey0gNCWkE7s0M... | 2 |
math | grade-3 | identify-trapezoids | false | true | Is this quadrilateral a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACGCAYAAADnyP2rAAAMSUlEQVR4nO3db6zV9X0H8M/v/Lt3DAzqdUpcMSREJ1VA4XbEEbTO0jZOnVtMZrbE9UETsmdqsmREH7Xh0dQlSxbMsm70QV1GUuM615Za01FryC5/hFmJlMQU2wFTgQKl954/v98e2P3OrSvy79z7PX9er2fvT+45vzc+eud44GZFURQBAAD0RCV1AQAAGCYGNgAA9JCBDQAAPWRgAwBADxnYAADQQwY2AAD0kIENAAA9VEtdYNR0/vv56Lz7txG1ayOyeuo6UCpaJ6O... | [
"yes",
"no"
] | null | 0 |
science | grade-7 | identify-rocks-and-minerals | false | true | Malachite has the following properties:
found in nature
solid
light-green streak
not made by living things
fixed crystal structure
pure substance Is malachite a mineral or a rock? | "iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAACpDUlEQVR4nOz9Z5Rkd3reCf6uN+FNRnpX3lehCh5tgO5ms9kUm1akpJWG0lB7lqujs19mz9kPc45Wn/bDrmY1R7Oj2d3Z1VJqShQliqbZaMd28GgA5X1WehOZGRneXX/vfriRgSo0gAYFUKTY+eIUIk1kZpj/e1/3PM8rRFEUcWAHdmDva+Jf9gM4sAP7q2wHDnJgB/YhduAgB3ZgH2IHDnJgB/YhduAgB3ZgH2IHDnJgB/YhduAgB3ZgH2IHDnJgB/YhduAgB3ZgH2I... | [
"rock",
"mineral"
] | null | 1 |
math | grade-5 | multiplication-input-output-tables-find-the-rule | false | true | What is the rule for this input/output table? | "iVBORw0KGgoAAAANSUhEUgAAAFgAAAB/CAYAAABrPAW6AAAKh0lEQVR4nO2dfVBU1xmHnw3Ih2ELRgQhgMuXNoFBKVEMViwVg0o2JkZNVfxqjBqbqo1fBVsSI0yUmCaMjcw0DolGjZrWqomKNoq00dHURAMqjoOgbEBcqB/Aisiyt3+Y3YRKJxDOwaDnmeGPPXfv+3v3mTOXu3vP3tW9WDBAowuQGrWV1wufu9tttIu18Sd44G43ca+jBEtGCZaMEiwZJVgySrBklGDJKMGSUYIlowRLxrkjO//6kdfx7x5GxhfjRfUjBFen7hgNcwn... | [
"× 9",
"× 2",
"× 4",
"× 3"
] | null | 3 |
math | pre-k | more | true | false | Which group has more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAdoAAACGCAYAAAB630uXAAAJ90lEQVR4nO3dz0+UBx7H8c/wa2bxx0B0wT0sy4WVg0QObmyyJmuiSY2kkXhZ10v7p/XUZC8baYOxyZpoQhOsHGzsQWUPiIdFdAOI0BmQPnt4MhZtQYH5fp5nZt6vi1rtPON7TD4Pz8wwhSRJkoUN6T/r0uqW9CYRAADYp46CdKRdGuqW+rukwkI1Sb5/lfXdAgCg+Zw9KnXMrqe/+EOXdPJQusIAAGB/Vrekx2vSfzekJ+tS26s36W8wsgAAHNyR9nRTJen1ltS... | 0 |
math | grade-1 | comparing-review | true | false | Which group has fewer? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAdoAAABeCAYAAACEstXVAAAGiklEQVR4nO3dvXNc1R3H4d/KklboJbhgQty5SSIqCA1yYdVAhhlTxJ78E0kPlPFM2vi/kFLEAzOMa7mwoAA6RKAglZyBwuOV5V2t5Jtioxmv2F3tyzn3XmmepzHGzDn3syq+ejNqFEVRPD6K+OEwonUScVwEADCl+UbE2pWI3y5HvL4Y0XjcKYovn1b9WABw+bzzq4j57w97v7m2GPH7ld4KAwDTaZ1EfPcsYv8o4t+HEXNPj3t/YGQBYHZrV3qbGhFxcBIxd/L... | 1 |
math | grade-6 | identify-equivalent-expressions-using-strip-models | false | true | This model represents the expression 1+1+b+b+b+b+b. Which expression is equivalent to 1+1+b+b+b+b+b? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAA+CAYAAAARUWyzAAAKKklEQVR4nO3dW3CcZR3H8d++u5tkD9kkzWmTtKantKVHoIDVFm0rp+EkOAOM3DCKg86Ig1c4Ayg6HioXHnCc0WGcyniho9wwICgKlNrKcVqptqVpKKWHtEk3NIfdZLPZ3Xe9WLLZ0Kbj4U2f9918P1c53Pwm2777+z/7vM/rKxQKBUk6kezW9v0Pa19ip5KZs4L3rWzaoMe3/L30/bVP+Q2mwcXw1zvypa/d/nqTdXZ4NesDr2zUwcTrBtNMV1s9T5e2bNa9q7epI7r... | [
"3+5b",
"7+b",
"2+5b",
"7b"
] | null | 2 |
math | grade-6 | interpret-histograms | false | true | An employee at the craft store counted the number of red buttons in each bag of mixed buttons. Which range of red buttons per bag occurred most frequently? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADmCAYAAADvPPLxAAAwAUlEQVR4nO3deVxU9f7H8fcwgIAoKgKKmMtV47qQqFk/RRMTTMXQTEMtW2xz6babPerXo37e36XMFm2xQu1amZklJlSK3tIsXMktC7JUkMWlRFT2Gc7vDx/OT1JwwIFh9PX8a853zpzz+ZyB45uvZ86YDMMwBAAAAMAh3JxdAAAAAHA5IWADAAAADkTABi5BQUGBHnjgAT3//PMXfP6XX37RAw88oISEhPot7DLCMQQAuBp3ZxcA1Idly5bpm2++qTTm4eGhli1bqn/... | [
"0-19 red buttons",
"80-99 red buttons",
"40-59 red buttons",
"60-79 red buttons"
] | null | 0 |
science | grade-3 | compare-properties-of-materials | true | false | Which would smell more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKUAAADCCAYAAAAo2gI4AABBeElEQVR4nO29R4xl2Xnn+TvnuuddRGREmkhXviqLFEk1W1RTJHrUPWyBEoQWMFppIUGAQEBbAtJCOxLQUtoIkNm00AJGWxVnNJwRIEGtbnpWFcuwTFZV+gzvnn/XnG8W595nIiIzIzMjIyOz3h+48d67Pt7738+f76gf74i8UISywxRTHClaCXzQgaUQ6i58uWbX6ykhp3hcKDvwQtG+byej9XpKyCkeJzL+RTJa5+6750//+sGuoBQ0m7C1BdUqlErguiBy72M... | 0 |
science | grade-5 | use-evidence-to-classify-mammals-birds-fish-reptiles-and-amphibians | true | false | Reptiles are a group of animals with similar traits. The following traits can be used to identify reptiles: They have scaly, waterproof skin.
They make eggs with shells. Observe the animals and read the descriptions. Select the one animal that has all of the reptile traits listed above. Box turtles can live to be over ... | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAp8AAACmCAYAAACcAuREAAEAAElEQVR4nOydeZwcZZ3/389TVX1Oz31krtwXCSEJhDMQEAi3gKAcCigCruCBunjsT9dFZV3xZAVBRFBBVFYRQRC55Aw3JJCD3OfMZDL39PRZVc/z/P6o6k4GEIH1Wu336xWY6a6urqp+uufT3+PzFc+NGjMrCSmLChUqVKhQoUKFChX+IowpWJcFkfaNqQjPChUqVKhQoUKFCn9pxhQIY4z5Wx9IhQoVKlSoUKFChX8O7D1/OeJfGvFzNjFpY9e6RJMJmttmMmO... | 1 |
math | grade-2 | fractions-of-a-whole-modeling-word-problems | true | false | Julia's family is moving, so she needs to pack the dishes. Dishes break easily so she must wrap them up. She cuts a sheet of bubble wrap into 3 equal pieces. Julia uses 1 piece to pack salad bowls. Which model represents the fraction of the sheet of bubble wrap that Julia uses to pack salad bowls? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUkAAABKCAYAAAA2aaayAAACDElEQVR4nO3cQU4TYRjH4XdK6QJQu9J4AOUIbL2KHAyuwpobIOzFXUOhCUjzuRhRV/+kQO0kfZ5VJ5NJ3uRLfnlnMe1aa+36oepqUTVfVj22Atha467qzU7Vp72qD5Oq7vq+tfObTY8FMDxHb6vGl4v+4uOk6nC/LyjAtpovqy7uqr4/VH1bVI1uHvsbAgnQd/Bwv/99u6waLf+5AcDfHv5sVaPNjgIwbCIJEIgkQCCSAIFIAgQiCRCIJEAwXvWB2XG3jjkA/ov... | 1 |
math | pre-k | select-solid-shapes | true | false | Which shape is a sphere? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAARl0lEQVR4nO2da3AU15XH/z2SRqPRG70tCQmCHolhJUwsDAGDDWsHO8QmtY6pfLGp3VrXPhzbW1tbG3sf2a0K3toqZ21vvmQr5cifErzlBKIgxw4QYR7yijiSS3JACIMkJDSgGSTNSKN5aKb3w2i6e4YZIYnb3be7z+8LrZ6ee88MZ26f1z0tiKIoukLAFT/giwALIgiCOzIFID8DaHACFXZAcAVFscert1gEsXy2FgCZQ/7YH1V2oCk3ptUEwRu+CDA4B0yEgMt... | 1 |
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