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-5 | types-of-angles | false | true | Is this angle greater than, equal to, or less than a right angle? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABUCAYAAAC4PkCPAAAJJElEQVR4nO3dXXBU5R3H8d/JORtdCGlKA5gQSQquIzhW6jTJWKG1RhgFlLKpkkA0eOtUeuvUXnpDL0Gn9sIZwtsGGmi1LYyG11ILtDilIybObAkghAhEXWPKQnZPTi92CW9JyMvZsznJ93Ozm7Nnz/NPcvObZ57/8xiO4zgCAAAA4IqcbBcAAAAAjCcEbAAAAMBFBGwAAADARQRsAAAAwEUE7DGitSWmurpD2rXrbLZLAQAAwCgY7CIyNrz55gltavivJGnKlIDC1WW... | [
"less than a right angle",
"greater than a right angle",
"equal to a right angle"
] | null | 1 |
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? | "iVBORw0KGgoAAAANSUhEUgAAAmwAAAGZCAYAAAA0Im0SAACAVUlEQVR4nO3de1xUdf4/8NdcGGaGGUBBbkKoCGOagkLeahN1bSsdqy1rxbbcb5u0W/vdErpsNzHbrd2k+q1tBfbd1Aq67VoOdjexi5caFNTUGbyDIMp9YAaGGT6/P8Y5Mtwvcz3zfj4ymDNnznnPCG/f53xuAsYYgx+rq6vF6dNn0N7eBoFA4OlwCAEABAQEICIiEldccYWnQyE8RvmPeCPKf70TezoAT+rs7ER1dTUY64REIvF0OIQ4qKurRXR0NAICAjwdCuEhyn/... | [
"sample A",
"sample B",
"neither; the samples have the same temperature"
] | null | 0 |
math | pre-k | shapes-of-everyday-objects | true | false | Which is shaped like a cone? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAIUAAACFCAYAAAB12js8AAAeDUlEQVR4nO2debAcx33fP90zs7O7734PeLgBEgTAI5QIUhRlkZREi6QuiypJdJyKnEgq23I5lpOUE8W2Ujkq5XJSsqNEKZePKCq7pIpTVlwpU6JVKtOmGFEyA8s6LJICRRIACZC48fCuPWem+5c/emZ29u0CJEGCb2nNt2re7Jtre7q//bv6171KRORUBIdasGogEUr8iMFXMOHB3jpsqoA61RX51sp6F6vEqOBNk+A/3XL/bKnA1WOOMSV+tLBq4MkmnIzgqRb... | 2 |
math | kindergarten | square-corners | true | false | Which shape has 4 square corners? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAF50lEQVR4nO3dT28bRRjH8e86aUqT1pyaiBNcWo4c+yIoIF4pAsqb6I1jEw7tiaa9JY2DTc1yWE2bVkk8450/z8z+vqdYlqVH8se7ir0z2/V9379ewV8LOF/D+x6lRrfbwYMdeLQPR3vQvV72/fOz0mOplnsyh92TxfDgqz349mBQqNTYztfw4gL+XsHxAmZn74cnhEzF7MHOYArg3Rpm6ytPKBUzZ+rfHmZlR1FTSdBUlgRNZUnQVJYETWVJ0FSWBE1lqXpoF8d... | 0 |
math | pre-k | inside-and-outside | true | false | Which picture shows the hay bale Created with Snap inside the barn? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOQAAAC/CAYAAADuHnC5AABli0lEQVR4nO29d7xc5XXv/d1l9vRyZk4/R9JRRyAJkOjFIIyxDbYpNnZuEmN8nZvk41zHcuLXb1ySSxKcvLlu2E58rx3bwcSObTBGYMAGIySaEBICNdTL0el1et31/WPPzDlzepGEgPl+PvrozO57Zv/2s571rLUewbIsq0+FY1lIGaBbVKlS5SwhC+CXYLkHGhQQ+gqWtSP5Zl9WlSpVLg+AfDRrf2hSYKXXVmuVKlXODikDDmegV4UjWRCTur2iKsYqVc4+fsn... | 1 |
math | pre-k | circles-squares-triangles-and-rectangles | true | false | Which shape is a triangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACTCAYAAAB28ADfAAAL30lEQVR4nO3de4wdVR0H8O85M3P33rt7u7vt7na3C12XttASkRIJJNIY+QN8AQYSjdoSNBAgkhBAEhWIiYoYjEqDCY/6h6kKSnwgAoqgKYLEBIrWoPSxfdCWZW+37b7u3r13d2bOzz+mxUJbSjtn5py59/dJNu1229/59c43Z+aeeVxBRFSeA7bPAJUQCAiMxeYKoOQAy4rAwhwgyrNEL0+Zbos1sgvnAe7QTPRNXw44qzVKIWNxVUJgaxUYmQO2zQByKoh+wCF... | 1 |
math | grade-6 | classify-rational-numbers-using-a-diagram | false | true | Use the diagram to help you answer the question below. Which of the following is an integer but not a whole number? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEuCAYAAAC08GWcAACGzElEQVR4nO3dd3yT5frH8U920qZ7sQqUlikbGYrIElFEQYYL18Hjxr2P+7h+bj2u4x4oLlBAkYOgMmSD7D3KKKN7pdnJ8/vjaQPIhjar1/v16qshTZM7pX3yzf1c93VrFEVREKIeybf72Vvlo8Tpp8qjYPf6cXgV7B4Fu1dRL1f/O3C55nqP/wjXKVR61D+jWL0Gs16DWafBrAdL4PKBz3+/zlJ9XYJJS6JJQ5JJS5JZS6JJS5JJ/Rxv1IT4pyaEEEKIE6WRgC2iRYl... | [
"124",
"–105",
"45.7",
"6.33"
] | null | 1 |
math | grade-6 | interpret-histograms | false | true | A volunteer for the local running club counted the number of participants at each race. Are there fewer races who had 6-10 participants or races who had 21-25 participants? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADmCAYAAADvPPLxAAAqN0lEQVR4nO3deVRU9eP/8dcwgLIvCuKW5p4iCpSZu5n6SbPUj5qa6af8lLmUvzbb++q3vl+rb50sW7S0jpYLfnJDLFxTIdMMFHdzKTcQVxYFVOD+/vA4ibJcZQYYfD7O8RxmuO95v+5cZ86LN3cuFsMwDAEAAACwC5fyDgAAAABUJhRsAAAAwI4o2KjwlixZolGjRmn9+vWmtv/ggw80atQonThxwsHJAAAAbuRa3gHgnN555x0dO3bMdtvFxUXVqlVTRESEevfurSp... | [
"6-10 participants",
"21-25 participants"
] | null | 0 |
math | grade-2 | which-bar-graph-is-correct | true | false |
Dave looked in the backyard shed and found three wheelbarrows, ten ladders, two rakes, and two shovels. He made a bar graph of the items he found. Which is his bar graph? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAgUAAAEOCAYAAAAZs2RTAABPAklEQVR4nO3deXxU1f3/8dfcO2tmJpOdLBACIeyIEHYFQRYrIFgVtdWi1SpaUbtqF7WWn1r9Wmu137qWWhWt3axfsVhFFAUVFARkJ6zZ90wyM5nMzJ17f38EoxFQFDIzJJ/n4+ED5t65dz5nHDLvnHvuOSbDMIzqMOxtBV8UNAMhhBBCdHNmE7hVKEqCXtb2babqkGF80BLfwoQQQggRP+OTIcsK5pLW9g05VhjkbE8NQgghhOjefFHYHYCqMOxpbQ8FSovWvlM... | 1 |
math | grade-2 | choose-the-appropriate-measuring-tool | true | false |
Which tool would you use to find out whether you have a fever? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJYAAACoCAYAAAACcRc/AAAWFElEQVR4nO2dfXAc5X3HP6u7093pFVmyZb0YD64tyTQpNsZgC+I3gpkJ8EfaUEIDISUh+aPQmTBJCsmUmXYmkKQlhEn+qAdqMqUpDk1KA07BYSzbCQRjbCETY1s2smVkvVlvlu4knW739ukfe7u3e2+Sse9Nej4zzLInIe3aH77722d/z7OKEEIMhOGjKQhEQBNIJJeMW4FyF6wqgdpiUAZmhDg0kevDkswnbqoA9+kpY6euGJpLDeskkkslEIHOSegPw6kpKJr... | 1 |
math | pre-k | subtraction-sentences-up-to-10-which-model-matches | true | false |
Which picture shows 6 − 1 = 5? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUQAAABKCAYAAADDly0CAAARkklEQVR4nO2dfXAc5X3HP7v3fjqdXixLsmVsbGObBDCYgmWBGzpAXngraUySmRo7YsqQNBMymaRk0jZTQtI2nQkpzKR/pLQpBuOGtJAUgnEJSWgSg2UDNgYbG/kFWZaxXu8k3Yvudm93+8edTi93Or3cniyJ32fG49m3Z5/PrOZ7zz777D6KZVlWpwYn4xAxIGUhCILwocCpQLkD1vihzg1KZ9KyDgxe6GoJgiBcWBqD4DwRTy8sccO6snRaCoIgfBiIGPBeDM5... | 0 |
math | grade-8 | apply-addition-and-subtraction-rules | false | true | The number line shows two unknown numbers, p and q. Is p–q positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAJAklEQVR4nO3dbUxT+x0H8O+h7SmUYosPtOilkrs5Fb3hqohFXa6Z2d1yGSpGX5gszs1Np3Ex3i1z2ZK9Im4ume6FJpKZZXMJV5MNr7gZjbnJ0N1YHqojQ5kXnViuCgWR8lD6yNmL0ipXlDJL/z3l+3mjPT0vvslp49d/f+d/JEVRFBCpWE1NDSRJwo4dO0RHoSThNZ95eM2JSE20ogMQvanOzk7RESjJeM1nHl5zIlKTuAt2MBiE0+lEQ0MD8vLyuIqQIjz9YXxaP4j... | [
"negative",
"positive"
] | null | 1 |
math | grade-8 | apply-multiplication-and-division-rules | false | true | The number line shows an unknown number, q. Is 5q positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAGuklEQVR4nO3dYUyUhx3H8d9z9u7YISu0hTVtdErLtjKmoniCU0Oy7MVGbMXZpr5x1GYmWhN80ca0ezGWqKlvTJtoGhLnOpcQ02ZIZrpkTdN60CV3hyfcRmRLDZ4SM1RYaznCwQFPXxx3hYjg9O4envP7eXPc8/Dilzz34pd//s/zGKZpmgJsrKWlRYZhaOfOnVZHQZZwzQEAi9kjVgcAHlR/f7/VEZBlXHMAwGJ2zwU7Ho8rFAopEAiopKSEyREAALgnTcE/yHe9W92... | [
"positive",
"negative"
] | null | 0 |
math | grade-3 | read-a-thermometer | false | true | What is the temperature? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEOCAYAAACzXGCqAAAbhUlEQVR4nO3df3AkZ33n8Y/ktck6691nCXW5s7G3l4CBtb1quYKPtddMzybEgJNoBhJ+xNgzQx13gQRWYyr8OFzMiIIQhziSSHAuoYJaJsEX4ngkVzk4kNA92Ni5wN22vF5s4yxqrW3qAjm2187Ble1V3x9ajVd4f4xmnplZad6vqimNWq3uz+qvzz717WcG0jRNBQAAAMCKDd282czMjOr1uqIoUhiGL/i5MUau6yqTySiXy8l13W7GAwAAANo20OkV7DiONTY2ppm... | [
"15°C",
"10°C",
"25°C",
"20°C"
] | null | 2 |
math | grade-4 | compare-fractions-with-like-numerators-or-denominators-using-models | false | true | Which fraction is less? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC5CAYAAAAS5EjTAAAIz0lEQVR4nO3cP2hVdxvA8efEDKmKHeoSVBQkpMSiOKgoUr2TpW5RaVoHXSxughWazaQI2kW7iX/A0T8lGRrBLq1DS2MRKSKIIFY72IpQugT/VNLzDq/3xfJaEtMn99zr/XzgDuYek4fkgXzzy8ktyrIsAwAASNFR9QAAAPA6EdgAAJBIYAMAQCKBDQAAiQT2CyYnJ+PgwYPx9ttvx8KFC2Pr1q3x008/VT0WLW5gYCCKooiiKOKXX36pehwAYJYJ7Bd89NFH8dlnn8W... | [
"4/12",
"6/12"
] | null | 0 |
math | grade-1 | cubes-and-rectangular-prisms | true | false | Which shape is a cube? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAQr0lEQVR4nO2daWxbV3bH/6K56YkiJVGStVryos1LnbhNg6RBpoVRDMbAoDP9MJ4ZYJAUGGC6AIOiaYt+GaBAgWLQ1p18GUyLFmiLAZq4aDHBJMhEsRQvEyveYllWHGuxbEmktVCSSYqkSEqU2Q/v3UeKWvhIXfKR953fF0uPpHhs/3h1373nnFuRTCaTC+vAozUgtAkkkiCIksNcAVQfALok4KAVqFiIJ5O3VvUOiyC087ITME+uyd80W4GeKtlqgig1QpvAeAS... | 1 |
math | grade-3 | read-a-calendar | false | true | What day of the week is December 16? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAF2CAYAAAAbcOzWAABdXElEQVR4nO3deVyVdd7/8RcHRBAVZHcXV1wIl0wRyXLJLa3MvNOau0mtbPvNjDOaw7ROY95lNWUzZTMtpmaumagZLg0oiI4rbpgLkCKiKKIiu+f8/kCOIKgHBY5cvJ+PR4/kXNc5fM6H65zzPt/re12Xg8VisVDC6rOnWJ+RTkpeLiIiIiJy+5rVdWGgpw/DvfzsXYrUAg4lA/7qM6dIysvhUf8m1HE0YbnRPUVERETkphyAgstmlqWdIKBuPYZ7K+RL1TKV/GH9uXR... | [
"Friday",
"Thursday"
] | null | 0 |
math | grade-2 | symmetry | true | false |
Which picture has symmetry? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAArLklEQVR4nO3deXhU5cH38W9myUySSWayrySEJSFhR1mqreJTl7rUF2q11pWqKLRVcEGstWyCWq2C1MelasX2QW1diEjVuhSwioJsAgYISxKyb2TWZCazvX8MicSsk8zMORPuz3VxXWRy5pw7ML/c59xrhNfr9da2wdEWsLjB5UUQhCBRRUCsEkZHQ2okRNQ6vN4dZqmLJQhnnulxoDrS4vsiPRLyY3zpFAQhOCxuOGyDmjYoaQGF2eX7hgifIARfrNKXNQCrGxT... | 0 |
math | algebra-1 | factor-quadratics-using-algebra-tiles | true | false | Which area model represents the factorization $4 x^{2}+8 x+3=(2 x+1)(2 x+3) ?$ | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOMAAAEdCAYAAAD+YdCRAAAQbElEQVR4nO3dfWwU953H8Y93veZhjc2DARubmhgIhIcUTHJUlFKagAIkqUpD/0iVBqk9ndJCkqvUE424k6q2atSTGl1btRLqhUqtIpQEEjXPxKEl0EJTyAIOGAjg4tpgB5YzdmwcY+/M/eFgASFQdmZ3vrvzfv1DGOyZn774vTNeCL8C13XdtovS8QvShymp3xWALCgskEZEpanDpfFFUkFbr+v+rTPoZQHhNr9EKjx2YeAnFUXStPhAqQAy78OUdLRbar0ovX9... | 1 |
math | grade-6 | which-model-represents-the-ratio | true | false | Which model represents the ratio 3 to 2? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAASEAAABRCAYAAACdSBBuAAAIcElEQVR4nO3d3W/b1hkG8IekSEnUlyUncdo0dRo4XZAOGFLUyJYiLXIxYBfzgAG7HXbZf2v/wFagLYYBxZAt7bIt6Zqlw7Il9py4Hhq7jj/0QVLi1+mFosDwYlsfpM5R9PxujMAS9crRefwekj5HE0KIDR9YcYFmBIQCRESpyWhAyQAu2MCcBWgbHSFuN2SXRUTT6EoZyCy73X+8YgHfK3QTiogoLc0IeOAAT3zgoQvojbD7DQYQEY1DyejmDQC0IkCP9n2DiGg... | 0 |
math | pre-k | subtraction-sentences-up-to-5-which-model-matches | true | false |
Which picture shows 4 − 3 = 1? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAABKCAYAAACiqlhpAAAMZ0lEQVR4nO2da2xU553Gf3P3jD0zNtjGt2mJwSEpDrIDciBmEVqEFCVqCRQF0qQJ3W2lKE2vS1crBWn7pUik+bDarbSbarVFKLRZCilLgmmgqCElkCBMSbFJjI252AbH+DLjy4znvh/GM/bY45nxzBwfk/x/kuU57znve/6Pn3nmnDnvzLEmHA6He33Q4YaRIATCCIKgEHoNWHVQY4ElRtD0esPhC8NqlyUIXz4es4G+3R1ZKDfCivxIOgVBUIaRILSNwV0fXHO... | 0 |
math | grade-1 | count-sides-and-corners | true | false | Which shape has 3 corners? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAACdklEQVR4nO3UPW5USRSA0dttuwP+JgPNAgDJGyCbxROyACQGcjypbSzZ49ab4Alpcre+Rs05UZVKurrBp9osy7JcPcx8u5u52c88LgNPdr6ZeXk28/bZzJvdzObqflk+XR97LU7Zh1cz51/v1sufu5n3z9cK4alu9jNffsx8f5j5+25me/24PoiMQ3p5tjY1M3O7n9nu//cAh/SzqX+Xme1xV+F3ITQSQiMhNBJCIyE0EkIjITQSQiMhNBJCIyE0EkIjITQSQiM... | 1 |
math | grade-6 | which-is-the-better-coupon | true | false | The original price of a frying pan is $46. Which coupon is a better deal? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAU4AAACRCAYAAACsTFEnAAAwiElEQVR4nO2dd3hb5d33v0fS0fS25SHbsTwT25kkMWTHJMwkQEsJ8DyU0Ye+ZbQUymjLaBgtbwnQAqUvtE8LLVDahtKyEghJSEImjrPjFS95yUMesmXNo/H+oVi2rCNZ48iSnPtzXVxcuXV067bG9/zu+7coh8Ph6LEATQZAZwOsDhAIBAJhAgIKiOcDxVIgQwhQPWaHo2ok0ssiEAiE2ODSBEDQaHD+I0sIzJY5VZVAIBAI4+hsQIMe6LYA5w0Ab8TqfICIJoF... | 0 |
math | grade-1 | which-table-is-correct | true | true | Greg saw the following items for sale at a snack bar:He decided to count how many of each there were, so he made a table of the items he saw. Which is his table? | "iVBORw0KGgoAAAANSUhEUgAAAT0AAADUCAYAAADup/RjAABbwklEQVR4nO3deZhc9X3n+/fZT+1b70v1pqVbC5IQyEhIbMLGOAYMJBknvs4yDmNn5ia+N3aSiScT+7EzxBNPVryO7cdOLiaON7BBbEbsILQh0WjvltTd6r2rq2uvOqfOcv8ogc0YMAa1uqU+r+fhDzVPddX5Vf8+dc7v/Or7FT7zmc+4eDwezxIhA3z6059e6Nfh8Xg854W40C/A4/F4zid5oV+Ax+OZZ66L67qU51KUi0XKY4NYhoGsaSi6SCi5FjUYQlZ1EISFfrX... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAnQAAADUCAYAAAAV6r4IAACw8UlEQVR4nOzdeZxc1X3n/c/db+1VXb3v3dpaG9pAFkJCgGxjbAMGnMQTP07swY6dmSdmHi9ZHMf22B7ihNiTBNvYAx47GUK8AwaxGbGDEJKQ0C51S+pu9d7V1bVX3Vt3ef5okMOYzSCpJXHerxcvXirVcs+p7tK3zv2d35W+8pWv+AiCILxNfOUrX5ntQxAEQTjpVIAvf/nLs30cgiAIp4UIdIIgnIvk2T4AQRAEQRAE4a1RZ/sABEE4xXwf3/cpT6coF4uUh/t... | 0 |
math | kindergarten | compare-two-groups-of-coins-pennies-through-dimes | true | false |
Which is more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAi4AAACYCAYAAADDRmKeAAB0uklEQVR4nOy9d3hc53mnfZ8yZ3oBMOgEQJAACLD3TkpUL1axZUvuduxYzjr+nMTOJlk7m2zKxrtZr+3YcezIclziuMmRbKuLqpQo9t5QSPTeBpg+c9r3x3COychJSFGUxOV7XxcvggQwM+8z73nmd573KZJt2/ZoHk6nIWGCYSMQCAQCgUDwtkCVIKhAsw8qNZBGc7a9N/5WvyyBQCAQCASC/5h1IVC70oV/VGuwwF9QNQKBQCAQCARvBxImdKRgJA+daZDjRuE... | 0 |
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 | [
"iVBORw0KGgoAAAANSUhEUgAAAU4AAAFGCAYAAAAFAHYEAAArXUlEQVR4nO3dfXAU930/8PfuPUq6B6EIPIAFqjmBJUfgIJCQLf3GOMnBtM500jG2nNhOIzmJKxdMksGxO2RQqUvmAqExBmozcTSetmrAJHZIxmPsaSBysR7OUbFBEo6kIoOBgsShh0Na7T3s7w+hsx7uhBZu70H3fv0j7edOt987pDff3f3u9ysoiqL8nwx0DgGDAcCvgIiIxtELgFUH5KUDdxgB4f9GFKV5IN7NIiJKDiU2QN8xNLox3wgsyxhNVSIi+txgAPj... | 0 |
math | grade-2 | write-subtraction-sentences-to-describe-pictures-up-to-18 | false | true | Which subtraction sentence does the picture show? | "iVBORw0KGgoAAAANSUhEUgAAAfQAAABkCAYAAABwx8J9AAAcuklEQVR4nO3daXCc9Z3g8e9z9NOt1n1asi0ZC8kyMuALDCYJJEBCYMJkASdkxoGhUjO1tZPa2U3Nzm7t1M5M1dbuFjVbU8u7ndmqVEgCSYFxmEAgCWEC4YjBxgfIt2RZtmTJulrqVt/9HPui7ZZkqaXuVrfU0vw+b1xudT/9fF/8n3/308+hOI7jIIQQQohVTV3pFRBCCCHE0smELoQQQqwBMqELIYQQa8CqmtAd/yDW8VcgNrXSq7Ik0lFccuk433OxgGuUm/OnT+I... | [
"12 − 8 = 4",
"13 − 9 = 4",
"12 − 9 = 3",
"14 − 9 = 5"
] | null | 1 |
science | grade-8 | identify-rocks-and-minerals | false | true | Hematite has the following properties:
fixed crystal structure
solid
pure substance
metallic luster
found in nature
not made by living things Is hematite a mineral or a rock? | "iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAACyvUlEQVR4nOz957Nt+XnfiX1WTjvnk8PN3be7b3ejA0CQoEhIMmc0pkLNSLLGNS6X/wC7ajzz2q9UqnK5Si5LsizJdk2NzJFdGmokEgABggQBNNCN7tv55nNPTjvnvfJafvHbZ6MbpJrQgESgzlN1qu89fe4J+6zn93vCN0hpmqZcxmVcxp8Y8s/6G7iMy/h5jssEuYzL+Iy4TJDLuIzPiMsEuYzL+Iy4TJDLuIzPiMsEuYzL+Iy4TJDLuIzPiMsEuYzL+Iy4TJDLuIz... | [
"rock",
"mineral"
] | null | 1 |
science | grade-3 | identify-mammals-birds-fish-reptiles-and-amphibians | true | true | Amphibians have moist skin and begin their lives in water. A barking tree frog is an example of an amphibian. Select the amphibian below. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADMCAYAAAAGVtdxAAEAAElEQVR4nOy9d7xdVZn//15r7XL67ekJIQkJoYYmHaWogBip0qzYfnbxiwPoqIM46AyKFRTbSNGBwYY4w1cElCoEAoaiQCCQhNSb207dba31+2Pfe0iFgBdh+O7363VfyTlnn73X3nutfZ71rOf5PMJaa5MkwRhDRkZGRkZGRkZGRsb/TqSUOI6DiOPYZsZ9RkZGRkZGRkZGxv9+pJTIzLjPyMjIyMjIyMjIeG1gjEG+0o3IyMjIyMjIyMjIyBg/MgM/IyMjIyMjIyM... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA6cAAADMCAYAAACPx9V0AAEAAElEQVR4nOz9ebwlV13vjb9XzbXn4cxTd5+ep8xDZyYDGhQCXAiQgHgF9bmij4IXn4he9SL+vPpCuVcUfEBAYkBFEE1AkRDCkIFMTaeT9Dz36TOfPU81rvX7Y58+mZMGGxSe/X699qv32VW1alXVWtX1qe8klFIqiiKklPTo0aNHjx49evTo0eNHE03TMAyDx+qwMQlp/T+6Rz16vDCNGA60YDaAvAFX5rq/az1h2qNHjx49evTo0aPHjz5SSqIo6gnTHv/pSev... | 1 |
math | kindergarten | represent-numbers-up-to-10 | true | false | Which group has 6 triangles? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAEcCAYAAAAV9AvgAAAOX0lEQVR4nO3dsW8b5xnH8YeW5AJulCVui9ro2BbwYGTL0G6eDXjw1j8ihQU0E71JySaNAaQ/QFrtRargrQuzxUSOYMKBCAg0FF0QyCWSjuTpOhwkU/SRPN7d+7wved/P4siOhRd+pJ/IOz4/VqIoin4aiLTORfxQZBQJABRivSKyuSby53sif7grUvkpiKJvfrZ9LACr7rOPRdZ/OI8/+ONdkb/+Nk4jACiCH4o0fxX570Dk+3OROz+P4j8gbAAUbXMtzhYRkV9... | 1 |
technology | grade | photo | false | true | What type of video game console do you see here? | "iVBORw0KGgoAAAANSUhEUgAAAV4AAADOCAYAAAB2OmrtAADBaklEQVR4nOz9d5hkV3UujL8nVA7dXZ3j9HSYniRN0igLIaJAQhKSEEFgYxlsY/OJB3ztzz/A9uUaC3/25fG1TTBJcLEx11ggonURkgBJgFCWJs90T+ccqrtyOOH3x661zzqnq2d6hFDAtZ6nn+6uOmGfffZ+91rvCluxbdtGTWpSk5rU5AUT9cVuQE1qUpOa/FeTGvDWpCY1qckLLDXgrUlNalKTF1hqwFuTmtSkJi+w1IC3JjWpSU1eYKkBb01qUpOavMBSA96a1KQ... | [
"Nintendo Game Boy Advance",
"Sony PlayStation 4",
"Magnavox Odyssey 2",
"Nintendo Entertainment System"
] | null | 1 |
math | kindergarten | times-of-everyday-events | true | false |
Ian recently got out of school. What time is it?
Choose the more likely time. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHwAAAB8CAYAAACrHtS+AAAc+0lEQVR4nO2de3RUVZ7vP+fUM6mqVICkEp4BKsBAIMFWfCSow7SA2tJLgZaZtkF7TU83jcPMVUBm2YqgrasF1L5LFLzeNQ0JtuO0SHdrjwJ6aRHSrUBDYsKzKpAETaUCeVVV6nnOuX8UKVIESOqRFI981mKR89pn1/mevc/ev/3bvy0oiqI4AmDrAJcEIYUBriPUAphUMC4dcrQgOPyK8lV7qrM1QH9wWwaoT3aEN4ZqYYIh/DYMcP3gkuC4BxoCcKIDxPZQ+MC... | 0 |
math | grade-7 | describe-a-sequence-of-transformations | false | true | What combination of transformations is shown below? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEyCAYAAADA5Kd8AAA+lklEQVR4nO3dd3zV9fXH8de9N/dm52YQMiDsvWPYIgpVXFVxW7V1V6ttRbF1W7c/68INitqqdbTODq1CcbDRiIyElZCEkEB2bva44/fHTaJIAhnf5Ga8n4+Hj0cT7vf7ORexefv13HNMHo/Hg4iIiIiIGMLs6wJERERERHqTQwL2gQMHuryAvnKmr87Vmb3rTF+d21fOFBERMYLpxy0iycnJvqxFROQQSUlJvi5BRESkzfx++o2u/oGWnJzcJ8701bk6s3ed6atzfXW... | [
"translation, then rotation",
"rotation, then reflection",
"rotation, then translation",
"translation, then reflection"
] | null | 2 |
math | grade-2 | read-a-calendar-ii | false | true | What date is 2 days after June 15? | "iVBORw0KGgoAAAANSUhEUgAAAssAAAF2CAYAAACYtNXtAABWyklEQVR4nO3de1yUdd7/8RcDIh4S5OxZ8IQHQkXzgER5SI20MnNX677d1MpOu93uav7Y7bDbmnfZtpvtlt1b5inT1FVRKzy0oCC6KoonLBUJEVEUUZGzM78/jAmCy4YEhsH38/Hwoc51zfCZD9dc857v9b2ucbJYLJZNF8+xNSebjKJCREREROTWtW3sxnBPHyK9/OxditwCp40Xsiynigp4xK81jZxNWOxdkYiIiIiDcwJKrptZk3WGgMZNifRWYHZUpq052Yz3a42... | [
"June 17",
"June 16"
] | null | 0 |
math | grade-2 | 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? | "iVBORw0KGgoAAAANSUhEUgAAALEAAAB2CAYAAACHxHLJAAAoU0lEQVR4nO2de5Qc9XXnP7+qfsxMz/uBNBrQCwkhEA8b2YCxh2CMIXE2xsIL8SaOHSeHZDlrchayOfYxPhvn2BDs7B6Ss+tje483Br/wOkQBTiLkgB9gYR6SDQYLhEBIiNGDGTQzmpmeflT97v7x+9Wje2Y0PW+11N9zRt2/qurq6tK3bt3fvfd7S4mIUEMNVQxnqQ+ghhrmihqJa6h61EhcQ9WjRuIaqh41EtdQ9aiRuIaqR43ENVQ9aiSuoepRI3ENVY8aiWuoetR... | [
"certain",
"impossible",
"probable",
"unlikely"
] | null | 3 |
math | grade-2 | 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? | "iVBORw0KGgoAAAANSUhEUgAAALEAAAB2CAYAAACHxHLJAAAvCklEQVR4nO2deXRd1XX/P+e+9/Q025IsLFtORDyADYYwpkxRgFUIgRICaQZCyNTf+kHpkDY0bdP8ktW0QKCrGWhSkqbDbyWEQAqpcdoGwi9NwIQy2G5wsLHBxsayNdiy5uEN956zf3+cc4cny4BtPcky2mtpXd033Ol9777f/d37nK1ERJizOZvF5s30AczZnB2tzYF4zma9zYF4zma9zYF4zma9zYF4zma9zYF4zma9pWf6AN7M1tlXZEtHjn2DPt0DPj0DPsPjmuZ... | [
"unlikely",
"impossible",
"probable",
"certain"
] | null | 0 |
math | grade-4 | compare-area-and-perimeter-of-two-figures | true | false | Which figure has a greater area? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJgAAACgCAYAAADw66XhAAAHWklEQVR4nO3dTUiUix7H8d9j85idezQpm3wUF5X3jqQgNpCQSC8aKQc3YpgSSYsWQS/GSagWIkE7z6ZNtshF5UYYyImzCINSIeIsKltEpzkOBNPUdVTIt3Re/N/FHOUMeu+5mf+ecfx9QGaeV/+Pfn0YcUBDRORTGPhjFpiKAVEB0ao5DCBzE/DPH4Cd6YDxaV7kt0m7x6JUVJ4FOHyz8QUrHXD9I14f0WpNxYDfZ4CPYeDdLJA2GY1vYFy0FjI3xVsCgOkYkBb... | 0 |
math | grade-1 | compare-money-amounts | true | false |
Which is more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAlYAAACYCAYAAAAm2KfyAAB+AElEQVR4nOy9d3xcd5X3/75leh+1Ue/NlnuvSZzYSYAkEEINSWCpDw8LLLDL8tB2H9heYNnlx8IukMASSCAEpyeOndhx7022LFm9azS9l3vv74+RJvbWJNhJzHPfr1desi1pMvdIc+d8z/mczxE0TdOmsnAxCTEF8ho6Ojo6Ojo6OjqvAFkAhwStVqgwgjCV0bTD0Tf6aeno6Ojo6OjoXNuscYLclyz8pdII7bZC1qWjo6Ojo6Ojo/M/E1PgQgIms9CbBDGaL3x... | 1 |
math | grade-3 | identify-faces-of-three-dimensional-shapes | true | false | Which shape has a circle as a face? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAXgklEQVR4nO3da3Bb533n8e/BjSAB4kaKokiKFEmJFG8ibcu6R3btXNZNnSZOWnfWmaaTbDJN2mySOjPbzjT7Jq3dmXZmN8m000nj2GmzO9lku+NIqW3Jt0jRhZJ1oymSokRSIkTxToAgQBD3sy9AQqQlR76QfEjg/3kj8+E5B3/Czw8HeHDwh6bruj4ag74wBJOQ0BFCrBCTBoVG2FYAGy2gjUZ1/eyM6rKEyD27HWC6Fk7/sMkC9bZ0OoUQKyOYhN5ZGInB1TA... | 1 |
science | grade-2 | identify-solids-and-liquids | true | false | Select the liquid. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKUAAADCCAYAAAAo2gI4AAAdDElEQVR4nO2dSWxb19mwn3s5z6IoDppsy6Nkx3bs2LJT2f/3I0lRoEDQRYrum25adBEUaYoC6a5osglaIEBbIIuuWqDr/1sVSL8viK3YceIhHuJ4SKyJFClSnGfy3vMvKFKSLcd2aotX0nkAgTJ5eXkv9fg95z2j8llOiH0u8JiQSNaVgga3SjBfB78ZTvW0nlelkJJu4THBPlfr96K2/LwqhZR0k7Z/DbH8nNqdS5FIHo6UUmI4pJQSwyGllBgOKaXEcEgpJYZ... | 2 |
math | grade-2 | even-or-odd | false | true | Is the number of triangles even or odd? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAClCAYAAABm8IozAAAPK0lEQVR4nO3dsWuc9x3H8a9Kh5QUpP/AElkLlmmm0iItyVai7gWpWzedxkw6baUQ7ry0yiQldZeUEDWaGgV8BZMuKdghGRXUJVUXWQUXd7sOro44yOVD+pPuHvv1mnTL3cPbGj4+/XieufF4PC4AAKCJ70z7AgAA4HliYAMAQEMGNgAANGRgAwBAQwY2AAA0ZGADAEBDBjYAADRkYAMAQEMGNgAANGRgAwBAQwY2AAA0ZGADAEBDBjYAADRkYAMAQEMGNgAANGRgAwB... | [
"odd",
"even"
] | null | 1 |
math | grade-1 | times-of-everyday-events | true | false |
Kurt is standing in the lunch line. What time is it?
Choose the more likely time. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHwAAAB8CAYAAACrHtS+AAAeAUlEQVR4nO2de1xUZd7Av3NhGJgZGPACpAkqk5Y3pFJaA61NS9m22i62u22i7m5bomn1brnZ+9r7prbv7rZectt8haTLprhqbcGm7RZiJmoC3godkMHUGUBwZGZgGGbmvH9MMzLcZC6AKd/Pxw+e55znMud3nuf8zvP8nt9PJAiCYLBBeSOYHGAX6OcqQioClQQ04RAjA5GhWRAONPR1s/rpDSZHgFTb6DqIk8Eohetp6OfqweSAExbQ2+BkI4gb7K4T/cK+OlF... | 1 |
math | grade-3 | scalene-isosceles-and-equilateral-triangles | false | true | What kind of triangle is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADOCAYAAAAEw3WqAAAnL0lEQVR4nO3daVyVdf7G8c+BwyIQLoSZipFoKFNYTFFuWDhFi/1NbaxMM1MxldwVyS0d9zQXpjRT3HNJszQNbWyikQYTd5JFnUjNDVcQWc6B839gONM05RJw38j1foYe+F2vXjy4+vm9v7fF4XA4EBERERGRUuFkdAARERERkVuJCrZUaHv27OGxxx7D09OTxMREo+OIiIiIqGBLxZSZmUmnTp0ICQnhq6++4vLly+zatcvoWCIiIiIq2FKxnDt3joEDB3L33XezYsU... | [
"scalene",
"equilateral",
"isosceles but not equilateral"
] | null | 1 |
math | algebra-1 | compare-linear-functions-tables-graphs-and-equations | false | true | Function A and Function B are linear functions. Which statement is true? | "iVBORw0KGgoAAAANSUhEUgAAAjcAAAGlCAYAAAAGbtd7AABWr0lEQVR4nO3deXxTdbo/8E+SNk2atLQUWgot0IIFpKwKLbINKAIu41VZREaRO8rMXHG7ouNl7uAyI+M66jgqP1RckBHlcgeFGcBrAcWlVEfBsrQqabClNC2loU1P9pzfHzWxpaVJek7Wft6vly8kOX3Ok/Dk2yfnPDlRiKIogoiIiChOKCOdABEREZGc2NwQERFRXGFzQ0RERHEloOamX79+UCgU5/3v4MGDIU4zcK+//joUCgXGjx8f9n1/9NFHvudk4sSJYd8/EQV... | [
"The slope of Function A is less than the slope of Function B.",
"The slope of Function A is greater than the slope of Function B."
] | null | 0 |
math | kindergarten | match-analog-and-digital-clocks | true | true | Look at the analog clock: Which digital clock shows the same time? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABZjElEQVR4nO3de1yT5/k/8A+IQYFYJRwMrRpQQSvpibaAR4RWu1awrbZV+tvWTe2+7bbKuh5W2Nq1m/a4Ddpv++2mbt2h0a7aVrBrpUVBrWArPRg8gBriocEg8RSCEFF+f7CkRHK4cyIBPu/Xy5ckuZ/nuWvJK1fu57qvK6Srq6sLRERERETkE6GBngARERER0UDCAJuIiIiIyIcYYBMRERER+RADbCIiIiIiH2KATURERETkQ2GBngAF3nnzRbR1dMLU3tn9d0f332F... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA5oAAAEJCAYAAAD1mFhPAABkZElEQVR4nO3de1zUVf4/8BeIgwLjheEilDqgQgbTjQqwUpTStgIrLZV+u9umtFu7m3Tfxe/Waqu12w3qW9/dtN32hlpaCbYlhYIWYEm3ARW0YcwaHHRUGAZhQPn9wc7EyFzO3Ad4PR8PH87lnPN5CzM17znnvE9QX19fH4iIiIiIyCOCgoL8HQKR3wX7OwAiIiIiIiIaXphoEhERERERkUcx0SQiIiIiIiKPYqJJREREREREHsVEk4iIiIiIiDwqxN8BkP+dMZ5... | 1 |
math | algebra-1 | interpret-a-scatter-plot | false | true | Does this scatter plot show a positive trend, a negative trend, or no trend? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFhCAYAAABK/t0lAAAmUElEQVR4nO3df1TU153/8RdoQMiMUMEEZoSVRcEa0ohgK+Cha9KjwTiJtttDu9mT1T2xYs7W1LZxTc/G40azh6Zxs2kSg/a7rUm0SbZsGqvHmE38GfFHZNRssAHXRCJCUCEiIAiC8/3DdVZUiMbLfD4zPB9/OZ87ft7vi8fDi8ud+wnz+Xw+AQAAADAi3OoGAAAAgFBCwAYAAAAMImADAAAABhGwAQAAAIMI2AAAAIBBBGwAAADAIAI2AAAAYJCtAva5c+d07tw5q9s... | [
"positive trend",
"no trend",
"negative trend"
] | null | 1 |
math | grade-1 | cubes-and-rectangular-prisms | true | false | Which shape is a cube? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAXZUlEQVR4nO2dX2wTV77Hv2n+OcGxzdrOH7BJqGxDdkGZBpa9RNBSgnSblmqh0obtviR0H/b2StvSZXUfgq4apAsrXaksdFfq9qGQPC2bSrfpJht6dQmbFghXWUgcgTbEziUOk2yC/yj+V8fOH+U+TM4kjp0SyIxnxj6fl4TxMD7x+fjM7/zm/MlaXFxcnJoFRiJAaAGYXwSFIjtysoCibMBaCJTkAVlTscXFvqDUxaJQ1s+PNECOM8L9oywP2LGJs5pCkRuhBWD... | 1 |
math | grade-1 | which-tally-chart-is-correct | true | true | Emma's friends looked in their lunchboxes. They found some fruit. Which tally chart shows the right number of each fruit? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADhCAYAAADyOcJJAAAtSUlEQVR4nO3deXhc9X3v8fc5Z1ZptFqyZOMF22AbMGZNgCRgSkxIAk3gCSVwUwiQGHKb9AIppUn7hNwk5DZtU6C9SWmgLQTSSwpZCFsgCWCyNIYQlmAW4122ZcmSLMmzz9nuH4NlZGv3rNLn9Tx60Mw58/t9jz16+Ojn7/yO4fu+j4iIiIiIFIRZ7gJERERERKYTBWwRERERkQJSwBYRERERKSAFbBERERGRAlLAFhEREREpIAVsEREREZECUsAWERERESkgBWwRERE... | null | [
"iVBORw0KGgoAAAANSUhEUgAABDYAAADhCAYAAAAzpzXIAABZ30lEQVR4nO3dd3yV9d3/8dd1ZtbJDmHvoYIsB9BWoRbFXdo6W+toRbS1dVS9Ha21FntrbdUOf3W2VtuqRau3FVwoOEGrFheyV4AEsueZ13X9/jgQDDlJTsbJyQnv5+ORB5zr+l7X93NCEnLe5zsM27ZtRERERESkRxiGkewSREQOKo5kFyAiIiIiIiIi0lUKNkREREREREQkZSnYEBEREREREZGUpWBDRERERERERFKWgg0RERERERERSVkKNkREREREREQkZSn... | 1 |
math | grade-2 | equal-sides | true | false | Which shape has 6 equal sides? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAIxElEQVR4nO3dz29U5RoH8O8Mw2Ri20tbGkirUdpaWwo2ehNiEFzA1YQfi5pQf8vmJrCxLooa9C9QosIC3EByN/jbktgFPxINLARJZKGpUNpb2qLRFkxpK9OScZzOuJhwo1eRnnPe932ed+b7WUGaOefJ9NuZc97zPOfECoVC4UoWuHQDSM8DuQKIIkvEgKpFQMsdwPIkELvyS6Hw1XXpsqiUPfQPIDF8o/if+iTQWlFMIVFU6XlgaA6YyAL/vQHEr+eKP2DIyKS... | 0 |
math | kindergarten | count-corners | true | false | Which shape has 5 corners? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAIkklEQVR4nO3dT2hUVxQG8O9NZkya0SSdjplREBNQE1pTY7Rmo4J/FrroShcFu6iC6M6NRVpwEZSKRBduFJEWF67ElbpxIwiNkSBGpUmrjkhISSMmaidxMH8mr4sxEouoM+/ec+998/02EkPeXOZ93DNz3psznu/7/vAkkMkBY3lg2gdRYFEPWFABLK8GUvMAb3jC93uyppdFYdZeA0Qf5Qo/LJoHNMULKSQKaiwPPHgF/DMJPMwBkex04RcMGam0oKKQKQAYzwO... | 0 |
math | grade-1 | time-and-clocks-word-problems | true | false |
Ava went sailing with her parents. They got on the boat at 8:00. They were on the boat for 4 hours. What time was it when Ava and her parents got off the boat? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHwAAAB8CAYAAACrHtS+AAAdZUlEQVR4nO2de3SU1b33P88zM89M5pIZcpkkQAKSgHJLoMpRCa2lFVCr76qAutpTrees10q1rvVWRbt6UaltT4XYdi0v4Nu1epBY254jclptK6CHV4WcKlAyMRGFSSCEkJnJbZK5ZK7P8/4xzJCQBDKXJDaZz1pZMM9l7z3Pd/Z+9t6/3/5tQVEUxRECux88UYgoZJlCqAUwqWC+HookEBxBRfmwf7KLlWUiuDYX1Cf9sQ8lElxpiP0askwdPFH41AcdITjhB7E... | 2 |
math | algebra-1 | special-right-triangles | false | true | Find s. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADNCAYAAACCVwcEAAAqTElEQVR4nO3dfXhU5YH+8e+8JJmQScjgZAYJGAImEBpCYiBACz8VUISwqEWtSqvUlrWIrKyirS7Xtu7FpV0FFxeoWtSirVYXbasroBbUrewmJCAQcgEhvEOQTAIT8mJeZjLz+yM1hfJiEiY5meT+/IOcOed57qP/3D09z3lMwWAwiIiIiIiIhITZ6AAiIiIiIj2JCraIiIiISAipYIuIiIiIhJAKtoiIiIhICKlgi4iIiIiEkAq2iIiIiEgIqWCLiIiIiISQCraIiIi... | [
"2 miles",
"$4 \\sqrt{3}$ miles",
"4 miles",
"8 miles"
] | null | 3 |
math | calculus | find-limits-at-vertical-asymptotes-using-graphs | false | true | The graph shows f(x). The dashed line is a vertical asymptote. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH3CAYAAACBwSh7AAB71klEQVR4nO3deXxU530v/s+smpFGu4QkFonNYAtL2GCwhcGQ4NjEJI7Bcey02ZvcNnWW5qZp0vzS3NuUunk1cXKTOq5vblPbqds6ceLEMRjbOGDAwmwyCBC7AC0ILSONRrOe/ffHaIQEAkbSeWaRPu/Xi5fQzJnPPAwz53zPM895HothGAaIiIiIiMgU1lQ3gIiIiIhoMmGBTURERERkIhbYREREREQmYoFNNIVs374ds2fPxvr161PdFCIioknLwosciaaOe++9F5/... | [
"$\\lim _{x \\rightarrow 3^{+}} f(x)=\\infty$",
"$\\lim _{x \\rightarrow 3^{+}} f(x)=-\\infty$"
] | null | 1 |
math | pre-k | count-scattered-shapes-up-to-5 | false | true | How many rectangles are there? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAD1CAYAAAAlI4EUAAAFRElEQVR4nO3dwW0CQRBFwcYin80EbaiITDaicQ4WYsxTVQT/+NSXvq211gAAAAk/uwcAAADvI/ABACBE4AMAQIjABwCAEIEPAAAhAh8AAEIEPgAAhAh8AAAIEfgAABAi8AEAIETgAwBAiMAHAIAQgQ8AACECHwAAQgQ+AACECHwAAAgR+AAAECLwAQAgROADAEDIffcA+JjrOXO9dq/4Dsdj5jh3rwAA/sAFHwAAQgQ+AACECHwAAAgR+AAAECLwAQAgROADAECIwAc... | [
"2",
"1",
"5",
"3"
] | null | 0 |
science | grade-3 | identify-solids-liquids-and-gases | true | false | Select the gas. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKUAAADCCAYAAAAo2gI4AAA8q0lEQVR4nO1deXRUVZr/1b6ktlRVKntCIJANAgQIhC3sCNKggoq7rZ627e6ZY3vGGVvndI897Zlzunt6Rke7RXEbbRWbplVwa0S2QAxZIRDIvhBIKpWl9r3emz8y9/pqCaKSqorU75x3krxUvXr31u99997vft/v49VaWLYgCVAKkEACUYUtALQ6gAEvkCwElmvGz/MThEwgVlAKgIKk8d/tga/O8xOETCCWIPzzsV+d48fmVhJIYGIkSJlA3CFBygTiDglSJhB... | 2 |
science | grade-8 | use-data-to-describe-climates | false | true | Which statement best describes the climate of Riyadh? Hint: Summers in the Northern Hemisphere occur in June, July, and August. Winters in the Northern Hemisphere occur in December, January, and February. Riyadh, Saudi Arabia, is a city in Asia. It is located in the Northern Hemisphere. It has a subtropical desert clim... | "iVBORw0KGgoAAAANSUhEUgAAAtgAAALOCAYAAACTXGSDAAD/20lEQVR4nOzdeVxVdf7H8ddl3/dNZFdEcWFRAcHdNAv3JXOq0bappn41Tc3UWDM1NTk1TTXTMkvTYntpqSkuueNSIiqIKCigCKKC7DuXe+/39wdyFcXEBC7a5/l4WNxzz73nfe8999zP/d7v93s0SimFEEIIIYQQolOYmTqAEEIIIYQQNxIpsK8gOTkZjUaDRqMhOjra1HHEz9CSJUvQaDRERkZe8315eHgY9+fWf2ZmZnh5efHLX/6SwsJC47r5+fnGdSorK69521f... | [
"Winters have lower temperatures and more precipitation than summers.",
"Summers have higher temperatures and slightly more precipitation than winters.",
"Winters have lower precipitation and higher temperatures than summers."
] | null | 0 |
math | grade-4 | multiply-fractions-by-whole-numbers-using-models | true | false | Which model represents the product 2×
2
3
? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAT4AAACOCAYAAACohWTxAAAEUElEQVR4nO3ZMWvUdxzH8e8lUfCi7ZJaOtRObcG4O4hL985S6JI8Bwn4AALpg9DZtcVHcNzinAjWLrWDtmYy5tDU49/hSNtBjvbyS3Lc5/VakuPgmz/3gTeB63Vd1708qvplVHUwrnrfFcBCWelVXVmu+rJf9enFqt7Ld133+PV5PxbA2bj5UdXKs9HkxWcXq75enVQRYJEcjKueHla9OKr6eVS19Pr95A3RAxbVleVJ46qq3oyrlsb/egNgUR037s+uaul8HwX... | 1 |
math | grade-2 | interpret-bar-graphs-ii | false | true | Katy went on a picnic and brought some bagels, crackers, and cupcakes. She made a bar graph of the food she brought: Which item did she bring more of, crackers or cupcakes? | "iVBORw0KGgoAAAANSUhEUgAAAfEAAAFfCAYAAABeJPXjAAChbklEQVR4nOzdd5ycZb3//9dd5562szVb0ispEAIBQhFIkCoCAioqKmBBfxwbHuuxcDjH7wE5IoIHlaKCR7DhAVSUGkMQQoAUSCV90zbbZ3bq3X9/TLIk0rJpOxs+z8eDBzvlnvtzX+i857ru675uJQzDECGEEEIMOepgFyCEEEKIfSMhLoQQQgxREuJCCCHEECUhLoQQQgxREuJCCCHEECUhLoQQQgxREuJCCCHEECUhLoQQQgxREuJCCCHEECUhLoQQQgxREuJCCCH... | [
" cupcakes",
" crackers"
] | null | 1 |
science | grade-7 | identify-ecosystems | true | false | Select the cold desert ecosystem. This ecosystem has:
warm, wet summers and cold, wet winters
soil that is rich in nutrients
only a few types of trees This ecosystem has:
warm summers and warm winters
a rainy season and a dry season
soil that is poor in nutrients This ecosystem has:
a small amount of rain or snow
dry, ... | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAp8AAACtCAYAAAD2xRSHAAEAAElEQVR4nOz9ebwsVXnvj7+ftVZVd+/pHA6HQQEvjnhxIEqcURFQEzVqHDDG4WeMcYpGjZJINOEmMYrXGL2oIRrjgCRGf0kcXsabGA0KoqLohRhHJMggIAfOtPfu7qpaw/ePtaq6unfvfQCjJlIfXtvVVauGVcOxP/1Zz/N55Cv7QjhmEZY1HTp06NChQ4cOHTr8WLDq4DvrIPttCB3x7NChQ4cOHTp06PDjxqoDCSGEn/ZAOnTo0KFDhw4dOtw2YNoLv/jhfQC... | 1 |
science | grade-3 | classify-rocks-and-minerals-by-color-shape-and-texture | true | false | Select the rock with the lighter color. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAACVk0lEQVR4nOz9Sa9tSZbfif3MbPenvf3r3D08wiMjIpkhEklmZQElkolCDghJoEChRgUOOKgPUIMCJH2J+gKCNCDUDIuihBoIECAUhGSRTLEyyYrsIzy8e93tTr9bM9PAmrPvcw/3iPDIjMjKZ47r77177j3N3rZsrfVf//VfwlprebverrfrC5f8Zb+Bt+vt+lVebw3k7Xq7vmS9NZC36+36kvXWQN6ut+tL1lsDebveri9Zbw3k7Xq7vmS9NZC36+36kvXWQN6... | 0 |
science | grade-7 | compare-concentrations-of-solutions | false | true | The diagram below is a model of two solutions. Each green ball represents one particle of solute. Which solution has a higher concentration of green particles? | "iVBORw0KGgoAAAANSUhEUgAAAbAAAAEVCAYAAACBn7B3AAB4oUlEQVR4nO2dd5wU9f3/nzO7e70Bd0fRgzuQzoENUECjGBti92tJYoJGTfymatSY4DeJGpOoMRrNN8aSxJhvorHE+IvYe4sIlkhTDBy9C9fLlvn8/pj5fOYzu3twwO3B7X2ejwfs7ezszOzuvOZdP5+xhBACg8FgMBh6Gfa+PgCDwWAwGPYEY8AMBoPB0CsxBsxgMBgMvRJjwAwGg8HQKzEGzGAwGAy9EmPADAaDwdArMQbMYDAYDL0SY8AMBoPB0CsxBsxgMBgMvRJ... | [
"Solution A",
"Solution B",
"neither; their concentrations are the same"
] | null | 1 |
math | grade-3 | identify-two-dimensional-shapes | false | true | What shape is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC5CAYAAAAS5EjTAAAOVklEQVR4nO3dz2ucd34H8M+WQo+lUHrrsff2Lyj0j+jfYTUoB5FTaicXryFbkLXalfcg24HYZI1l2BTsxAoYhwjkkYiEJ6iSBiPJyNGAx5VGHUZ6ekicTTb+IY2eme/z4/W62R7N8z6+mXnLn19lWZYFAACQi79KHQAAAKpEwQYAgBwp2AAAkCMFGwAAcqRgAwBAjhRsAADIkYINAAA5UrABACBHCjYAAORIweaNVjqt+HXzRuoYAACl8depA1Bcnf5BjC1Oxs5hO/7... | [
"triangle",
"hexagon"
] | null | 0 |
math | kindergarten | represent-numbers-up-to-10 | true | false | Which group has 7 hearts? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAEcCAYAAAAV9AvgAAANx0lEQVR4nO3dsW/bZhrH8cdRqoK6pjDAgw82RCBDzwYKFOpW2KtWeYwz1nNWzVnzJ2S2xijbyatWFegkj2UzCKDh9HxHwKhSGvHV0A2C7Cq2EFsmn/eVnu9naZ1U1PNDxR8ZhuK7MhqNRr9diLzLRIaXIn+OBABy8XhF5ElJ5J8VkX+URVZ++zga/fy767EALLsfvhZ5/Gs2/mG9LLL1t3EbAUAehpciv/wh8v5CJM5EHv3+5/g3KBsAeXtSGneLiMiHS5FHl3/... | 0 |
math | grade-6 | identify-trapezoids | false | true | Is this polygon a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABnCAYAAAA60DWMAAAQoUlEQVR4nO3deZST9b3H8c+TZJLZEhAERVzGClQBN+Re3GpduXJcKWJFUERW14NK4YpyShU3BKUtIAwgogiIUreeA9eFKi0WVChUoFSssjoWRcdJJslke+4fMJM8eL2gJPPkSd6vvybP4Rx+DMnJJ09+n9/XME3TFAAAAICscNm9AAAAAKCQELABAACALCJgAwAAAFlEwAYAAACyiICNwlJbK61ZY/cqAABAESNgo7BMmyade6501lkEbQAAYAsCNgrLxRdLLVpIq1Z... | [
"yes",
"no"
] | null | 0 |
math | grade-1 | simple-fractions-what-fraction-does-the-shape-show | false | true | What fraction of the shape is green? | "iVBORw0KGgoAAAANSUhEUgAAAU8AAABkCAYAAAAG0bKzAAAB+klEQVR4nO3YIW6UURiG0W8ms4nSTTRBVVCFQrIFHAmeJVQj6roDLK4KQ3CwiAZ28SMwI5nHXCZzjvvcm9zkEXe3bds2AJzkMDPz9suH+f775+otF+326mY+v/m0egbwj/YzI5z/gW+/fqyeAJzgcHx8fP1+1Y6Ldv/0sHoCcKL96gEA50g8AQLxBAjEEyAQT4BAPAEC8QQIxBMgEE+AQDwBAvEECMQTIBBPgEA8AQLxBAjEEyAQT4BAPAEC8QQIxBMgEE+AQDwBAvE... | [
"1/3",
"1/2",
"1/4",
"1/5"
] | null | 1 |
math | grade-8 | identify-functions-graphs | true | false | Which of these relations is a function? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAATIAAAE3CAYAAAApC812AAAasUlEQVR4nO3de3CU9b3H8c9ubnsNkZyQRArCQSHYTBNSWhMpILZaIqBCpSgUFYXOOJAAPafD9MwZpzNejp3pqXLTqVYUj1Y5UkpBC5UKtlUTL8hSKQYrh4DTEkQl92yuz/ljyWVJlutudn+779eMA3mSPPsz2Xx4nifPZ782y7Ksmjbpk2apoVPqsAQAMS3ZJnmTpKtcUnaqZKtptax366O9LAC4ONekS8l/bw68kZsqjXMHUg4AYllDp3SoSTreJn3cLNnrOwL... | 0 |
science | grade-8 | use-scientific-names-to-classify-organisms | true | true | This organism is a Eurasian lynx. Its scientific name is Lynx lynx. Select the organism in the same genus as the Eurasian lynx. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADMCAYAAAAGVtdxAAEAAElEQVR4nOzdd7xlVXn4/89aa7fT7jm33+mVKcAwQ++gEAVFERQUNbGXr8aSaIKGRA0hUSPWEIxdNPEXDUa/goKKja7AUKbA9HKn3F5O3X2t3x9n5n4ZQQQcxZD9fr3ua+aec8/Z6+yzzj7PXvtZzxLGGJMkCVprMplMJpPJZDKZZ5KUEsuynulm/I8ms+A+k8lkMplMJvPHQmtNkiTPdDP+R5NZcJ/JZDKZTCaT+WOSxae/G/lMNyCTyWQymUwmk8kcPlmAn8lkMpl... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA6IAAADMCAYAAABp7h4wAAEAAElEQVR4nOy9d7glVZX3/9l7V9XJ99ycOudAR5ocBVQQBVFBDKOYHdMYB2fG0ZGfjuOMigFhjAijjDI6oqhIRqBJDQ00nZuOt+/tm9O5J1Tae//+qO5+RRAbhxFf3/N5nvN0nzrnVO2qWlV3r1prfZew1to4jjHGUKdOnTp16tSpU6fOC4mUEsdxXuhh/F+NEOKFHkKdOn8QWXdC69SpU6dOnTp16vy5YIwhjuMXehh16tT5X8apO6F16tSpU6dOnTp1/pyoz0/... | 2 |
math | algebra-2 | factor-quadratics-using-algebra-tiles | true | false | Which area model represents the factorization $9 x^{2}+12 x+3=(3 x+3)(3 x+1) ?$ | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAXIAAAE4CAYAAABG53gDAAAWk0lEQVR4nO3cfWyV9d3H8U/PQ3k4tQU5QFvKWgvIM4MisjDmmEJAHFuY7A8WJ8lm7riIeC/xjiPcJnuK/jV3b8u9hOyWJVsMUUE3n7GyIGwwR22hQgGBjq6FVjgMWltqac913X8gDSAwes7vcPY91/v1T+3V9ny/+YTz4dfrHMnzfd9vOy8dOSd9nJT6fAEA/o1F8qRbwtKEodLofCmvrcf3/9aR7bUAAKmYWyhFDp+78ElJvjQxdqHlAQD/vj5OSoe6pNbz0of... | 0 |
math | grade-5 | rotational-symmetry-amount-of-rotation | false | true | This image has rotational symmetry. What is the smallest fraction of a full turn you need to rotate the image for it to look the same? | "iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAAAwzUlEQVR4nO2deZxcVZn3f885997al96rOwlrEBUXREBlXEBl2HcIS0IQBgdlHB3H2fB9dTKOo7PpuAPisISEJUIAZREVEV83JI6oCIoQYJJ0V3e6u/btLud5/6h0kk4vVbe6OlXVud/Phw/p7rM851b97tme8xzAw8PDw8PDw8PDw8PDw8PDw8PDw8PDw8PDw8PDw8PDw8PDw8PDw8PDw8PDw8PDw8PDw8PDw8PDw8PDw8PDw2N2qNUGHOjkNg59yLLVB5TDBzGTBAA... | [
"1\n8\n of a full turn",
"1\n7\n of a full turn",
"1\n10\n of a full turn",
"1\n9\n of a full turn"
] | null | 0 |
math | grade-3 | identify-multiplication-expressions-for-equal-groups | false | true | Which expression describes the model? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACHCAYAAAAslC4OAAAaJUlEQVR4nO3dWXbiSBbG8SuBwEzGxqRnO7ve6rV7Wb2DXlHvozdSlXZiPKQN2GDEINEPLlQS4AEIDSH9f+f4HMvZCeHkq6vbIUXImM1mMwEAAACghBn3AAAAAIA0ocEGAAAAFKLBBgAAABSiwQYAAAAUosEGAAAAFKLBBgAAABTKxz2AMLmuK5PJxPsaj8cymUzEcRyZzWbiuq64rut9LyJimqYYhiGmaXrf53I5sSxLCoWCWJblfZkm//9ER5vmYjEb+Xzey4I/G9A... | [
"3×5",
"4×5"
] | null | 0 |
math | pre-k | more | true | false | Which group has more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAdoAAACGCAYAAAB630uXAAAjv0lEQVR4nO3dd5hcd33v8fc50/vuzPamXlZltbZlG4y7kcHAxaEkxoZL7DgECNfhhjwB8tzEAeMbAjy+z3WBBG4cQyimuAGxiQ022JZxQZIlWVbvu6vtbXo9v/vHrGY1mpnVSto5Kv6+HnisnVPmzOc3z/M9c87v9zuaUkoNpGFvHCI5yCqEEEIIcYqsGvgssMQNjXbQBlJKvRY+04clhBBCnH8u9YN1Tzz/R7MdlnnyVVgIIYQQpyaSg10x6E/D7jjo4Wx+gRR... | 0 |
math | grade-5 | adjust-a-budget | false | true | This table shows Kathleen's April budget. What could Kathleen do to balance her budget? | "iVBORw0KGgoAAAANSUhEUgAAAhAAAACeCAYAAABjJTMIAABCuElEQVR4nO3dd3gUZffw8W96ISENQouQAimEECIkFCkCFkRADCWCUekonUekSHkkoIjiTxCjvA8RFER6URCRJqEqYJBApBMpoW56sks2Zd8/YlaWTdlNNoTg+VwXl5ez99xzZnbus2dn7tmYDQmP1SCEEEIIYQTzqg5ACCGEENWPFBBCCCGEMJoUEEIIIYQwmhQQQgghhDCaFBBCCCGEMJoUEEIIIYQwmhQQQgghhDCaFBBCCCGEMJoUEEIUo/8b3iz6ul2Z7fpEevH... | [
"increase spending on magazine subscriptions by $10",
"clean the Moores' pool to earn an extra $10",
"face painting at the spring carnival to earn $20",
"decrease spending at the aquarium by $5"
] | null | 2 |
math | grade-1 | purchases-do-you-have-enough-money | false | true |
A piece of cornbread costs 43 cents. Do you have enough money to buy it?
| "iVBORw0KGgoAAAANSUhEUgAAAvgAAAC7CAYAAAAQceoIAAC8lElEQVR4nOzdd5wU9f348dfMbK9X9npvwNF7U0BQUexdscWGGo0mdo1GY2J68k2PMZqiiSUx9hZFVBBFeu9wHFe43m/7znx+fxy7cnLAHaKgv8/z8biHODs7+5nPzM68Z/Y9748ihBBIkiRJkiRJkvS1oB7tBkiSJEmSJEmSdOTIAF+SJEmSJEmSvkaOeIDfHhUUvd3JmPe6aI/K7B9JkiRJkiRJ+jINKMB/uS7Kw1tCBw3cP2iOURkwWNOhc/XKwOduoCRJkiRJkiR... | [
"yes",
"no"
] | null | 1 |
math | algebra-1 | multiply-two-binomials-using-algebra-tiles | true | false | Which area model represents the expression (3x+2)(3x+3)? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAVUAAAEACAYAAAADT+VqAAAT2klEQVR4nO3df2zU9R3H8dd97wqFK6XFFtoCQ1vkl0qAjihR9kOHglGXxWwJxmThPxOHmsV/nHN/bnPJMpeFzJm4xOlc/IHLcIlI45gwN3BrC8oPy49Ki7SlPSktvXb9cd/bH127toPa3r2PL/e55+Ofeoe99zsvLq/7fnvlvqFkMplsG5BO9UqXEtJQUgCAKYqEpDlh6cbZ0oIZUqitP5n8sDvotQAg+91aKEVO9g7fKJ8hLY8ONy4AYGouJaSGuNQ6IJ3olbz... | 2 |
math | grade-3 | read-a-calendar | false | true | What date is 2 days before May 3? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAF2CAYAAAAbcOzWAABaBElEQVR4nO3deVxU9f7H8RcD4i6ILG6ZKCpahIqGiES5hKa2mNfSa7dSS0tbrqV5Kct+ZV61umVW1m1xy1wzUTNcuqCYkoribioqGu4KicjmzO8PZRJBHJRh4Ph+Ph4+lDlnhs/5eOac93zPMk4Wi8XCFaIOxPHzofUcTj+BiIiIiNy826p50/X2djzo28HRpcgtwOnKgB91II6kP//g7y264FqhAhYsRT1XRERERK7DCSeyc3L4bucKfKvX5aFGYY4uSQzOdOUPPx9... | [
"May 2",
"May 1"
] | null | 1 |
math | grade-1 | select-two-dimensional-shapes | true | false | Which shape is a hexagon? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAFnUlEQVR4nO3dTU+cVRiH8f/wtqit7jTu3Kgfge9ojHHhwoVNmmBSSbqAjU3EmMZKikAaEJqmBZMS5UXaYGAYyMAMj4vjmIqDheF57nOf81y/pAmUMjmLKxw6zM3dKIqi2DmR1o+kZlfqFAKubaQh3RqWPrwhvTcmNXbaRTF/EPtYyNn429LI2lF45/0x6eO3QoXAdTW70rOWtH0iPT+Shg464QNEhjLdGg5NSdJhVxrqvvYBoEy9pk4LaSjuUVAXhAYThAYThAY... | 1 |
math | kindergarten | cubes | true | false | Which shape is a cube? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJ8AAACfCAYAAADnGwvgAAAQu0lEQVR4nO2dXXAcV5XH//d2z4c+RhpZH0h24iiABQS8KszGdmrLcVEbL4VdrhAKKIoK5gVTVPFVsDztkieyT7tbBFJQS2XzgnmggCrYpGQKSB6wC4gF2GXzYWIlOI5lJFmSLWmkkWamu+8+3Jnp7tFY6u6Z7ntbfX8PVqvnTvcZ68y993/PuacJY4zNloHXikDBBAwGhSIUdALkNGBfJ/CWNEBmS4xNrog2S5E0DvUA+lSR/zKSBt7RxT1ToQiDggm8ugbMlIF... | 0 |
science | grade-8 | identify-common-and-scientific-names | false | true | This organism is Flabellina iodinea. It is also called a Spanish shawl nudibranch. Which is this organism's common name? | "iVBORw0KGgoAAAANSUhEUgAAAZAAAAEsCAYAAADtt+XCAAEAAElEQVR4nHz9e6xt25behf1a633Mtfc591XX9S6gCrDLBjuUibErGAxOjMAGYh4xxEACBBMEAeIgsCoQK+QBEUHIIiEKRAqJIA8JRJSgSCCSAEYKxhDApmyMscvlKrtcVbeq7r3nnnPP3mvN0Xtr+aO11vuY69xkXm3ds/eaa84x+ui9Pb72ta/J3/6X/Qr/4Am6whiGuIE7NgHg5s7pL4zpnK5MnqC9QbojMpGmuDaQhuhkMjnvkzmdOSfnMNwd3AEwy78D0wwRRcV... | [
"Flabellina iodinea",
"Spanish shawl nudibranch"
] | null | 1 |
science | grade-8 | identify-ecosystems | true | false | Select the hot desert ecosystem. This ecosystem has:
warm, wet summers and cold, wet winters
soil that is rich in nutrients
only a few types of trees This ecosystem has:
year-round rain and warm temperatures
soil that is poor in nutrients
many different types of organisms This ecosystem has:
a small amount of rain
dry,... | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAp8AAACtCAYAAAD2xRSHAAEAAElEQVR4nOz9d5Rl+VnY/X53OvvkHKrqVA5d1Tm3emZ6erJGOcJIMkIkkV8DtoUtjK+5C99r5ItfDCIJJCMUEIwQSCOhMJo8PT090zlWzuHUyTnu+P5Ro15ug8H4vtCs1+ez1lmrT++zd+19qn5Vz/nt3/M8woWKbU96wCfR1dXV1dXV1dXV9Q+iZsJcA4SqYdvdwLOrq6urq6urq+sfWs0EwbZt+26fSFdXV1dXV1dX1/8e5P/2yf53jFKtVtneLKAqEiIStm4... | 2 |
math | grade-7 | identify-trapezoids | false | true | Is this polygon a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADKCAYAAACfUje8AAAR2ElEQVR4nO3deZCcdZ0G8Kd7Zno6hJBwhAWCXCEYV7mWhHgsEUQBUQtvWcqjvMrSyrpau4gu7iLrhcAfbhVl6a66HoWl6JZ4bFBBDRGrgKCCRxnFEDkSIUQgIYG5e/+YyfQEI5OEmXn77f58qlLpt2o6/U1V3vyefuv3Pm+l0Wg0AgAATIlq0QMAAEA7EbABAGAKCdgAADCFBGwAAJhCAnbRfvrTpL+/6CkAAJgiAnbRLrgg2Wef5L3vFbQBANqAgF20V7wimTs3+fS... | [
"yes",
"no"
] | null | 1 |
math | grade-2 | which-picture-shows-more-up-to-5-dollars | true | false |
Which is more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAlYAAAC8CAYAAAC65eDSAAC36klEQVR4nOy9d5hcd3m3f59zpred7b0X9V6sahVL7t3GNRQDCWCIIeXNm18KJKQQXkIgkAQCBAIY2xh3GRfZkm1Jlqy+2lVbbe9lei+n/f6YnbFkGyPZki3Q3Nela3c1OzPne/aZ833OUz6PoOu6PpGGnjhEVFB08uTJkydPnjx58pwFBgGcErTaoNwEwkRK1/eFP+zDypMnT548efLk+d3mMhcYuuOZHypNMMOe8bry5MmTJ0+ePHny/HYiKnTFYDwNp+IghpX... | 0 |
math | pre-k | different | true | false | Which is different? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHwAAAB8CAYAAACrHtS+AAAGsUlEQVR4nO2dW28bRRSAv7W9vmycphCREEJiKiVBjXghqZryABISpX1A8A5/sjxVqSroUyt6oQ1FSqFUJHIhF1SljS+79np3eTAGilrapLHnrOd8L1HkRD4z38zsmd2dGSdJkmS7Db80oRZBJ0EZInIOjGZh3oPJPDjbrSS5vm86LGUQrByD3P1m95epPLw70m0NyvBQi+CnBmy14ecmZPY73Q9U9nAymu26BahHkIn+9YEynPTchglkzIaiDBoVbhkq3DJUuGW... | 0 |
math | grade-2 | fractions-of-a-whole-modeling-word-problems | true | false | Bobby is making a poster about friendship in his art class. He divides his poster into 3 equal parts. Bobby writes the names of his friends all over each part. Which fraction model represents one part of the poster? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUkAAABKCAYAAAA2aaayAAACEElEQVR4nO3XMU7bcBjG4c8hMABtt1Yd2Gg5AuIA3KdH4T4cAIkbULIxlK4JRCIl+newUKsOrxQa6lQ8z2TLtvRJln7+3LXW2u2iajKvmi2rHlsBvFrjrurNVtWn3aoPO1Xd7UNrl9OhxwLYPMdvq8bX8/7k407V0V5fUIDXarasurqv+rao+jqvGk0f+wsCCdB38GivP75bVo2Wv10A4FcPf7Sq0bCjAGw2kQQIRBIgEEmAQCQBApEECEQSIBiv+sD5wcVLzAH... | 0 |
science | grade-4 | compare-properties-of-objects | false | true | Which property do these three objects have in common? Select the best answer. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADQCAYAAAByQhWRAAD3dElEQVR4nOz9d7gk133eiX/OqdC5b86T8wwyQBAQSYlilERZsixb9sprrddeWbt6fpLtXduP17J3HwdJ9spRWnsVKEsWKZkiKYoiRRKMIECAiDNIM5g8c9PcHDuHqjrn98ep6tt9wwAgQWBCffA0bk+Hqurq6u73fOs971dorTVAvV5nbm6OYrGI7/vExLzd2LZNPp9nZGSEZDL5PV1XfPzH3GjEx3/M7cxbefzHxNyKCK21rtVqXLlyhb1795JMJnEc5+3erpgYPM+... | [
"sticky",
"opaque",
"transparent"
] | null | 1 |
math | algebra-1 | domain-and-range-of-square-root-functions-graphs | false | true | What is the range of this function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABk/UlEQVR4nO39f3yU9Z3v/z/nV34nJCSQQDBBRFCQoCgoCP4oVl1tbaHtavvtD/fjbteeWnt6PttzevZ0u7v9ePP0e3bb/dS1np6edas9nz2fnnqqdgUDRUWgoCARAomIGCEQID8mmSTz+5qZ6/r8ERMJPySB681k4HG/3bx5y2SuJ69c18w1z7nmmhmP4ziOAAAAALjCm+0BAAAAgIsJBRsAAABwEQUbAAAAcBEFG8AotbW12rZt28jPBw8e1JQpU9Te3p7FqQAAyB0... | [
"$\\{y \\mid y \\geq 0\\}$",
"$\\{y \\mid y \\leq 1\\}$",
"$\\{y \\mid y \\leq 0\\}$",
"$\\{y \\mid y \\geq 1\\}$"
] | null | 0 |
math | grade-3 | parallel-perpendicular-and-intersecting-lines | false | true | Are these lines perpendicular? | "iVBORw0KGgoAAAANSUhEUgAAAMUAAACZCAYAAACfdP58AAAKP0lEQVR4nO3dfVAU9x3H8c8BioAnRDRIjUhHCj6ARqqAHGp8IAgqEXU8omM709p2Uied+peTiWk7k4xN/4t2ajKTybQz6cCdo8YEuRPxqcgBPqJijA+YUSpREjGcB4cox/UP3JMeHiLc7W937/P6C8Mx/mbi2911v/tbndvtdoOIPEJEL4BIaRgFya7hWpPoJQyIUZDsLFVn8bGpQvQyfGIUJMS2HaXYpdAwGAXJrrnlPgDgvR2lKCk/IXg1/TEKkl38+BjP129/8Bm... | [
"yes",
"no"
] | null | 0 |
math | pre-k | subtraction-sentences-up-to-10-which-model-matches | true | false |
Which picture shows 8 − 1 = 7? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAXYAAABKCAYAAACvkX8HAAAPtElEQVR4nO2d228bV37HP2dmeBFFSrIkS7GtRHbiKN7mYlvbOHIaFN1gt9ugydaIs9lsgyTcx2Jfiz70pehLn/ontICcwigWTdJgt802KLAbbIpKcWzZycZNfIkj3yJZsmhJJCVeZub0YURRFKmbxcuI+H0AQR7yzPB8TOE7h+cMf6O01noyB1cXIOmArREEQRB2EJaCmAmPRqA3CGoyq/WZ+UZ3SxAEQagGz7SBdWXB29gThMdavdQXBEEQdg5JBy6lYSIHlxf... | 1 |
science | grade-6 | identify-ecosystems | true | false | Select the tropical rain forest ecosystem. This ecosystem has:
a small amount of rain
dry, thin soil
many different types of organisms This ecosystem has:
year-round rain and warm temperatures
soil that is poor in nutrients
many different types of organisms This ecosystem has:
long, cold winters and short, cold summers... | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAp8AAACtCAYAAAD2xRSHAAEAAElEQVR4nOz9ebBs7V3WD3/uYY097emc80xJnswQCVYMUogIgggqVKmgDC9TBMqpSiiFKIplyqFMfCMWBcYRiQiiWFiIr6KAgBAkBlADIpQmPEme6Qx76mHN9/T+ca/uvfdJmN76keT16auq6+zTvXr1vdbqrr76+/1e1yV+ZhXCqycwU+yxxx577LHHHnvsscdvCjYO/ncNYm1D2BPPPfbYY4899thjjz1+s7FxIEII4SO9kD322GOPPfbYY489XhjQ1//z0z/... | 2 |
science | grade-6 | compare-magnitudes-of-magnetic-forces | false | true | Think about the magnetic force between the magnets in each pair. Which of the following statements is true? The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different shapes. | "iVBORw0KGgoAAAANSUhEUgAAAmYAAACXCAYAAAC/fZcfAAAptklEQVR4nO3deVgUV7oG8LdpoBtoVgEFiQKComAEFxRXVNS4JUaNmlyTidnMZibj5CaZTO5MMpmsMxljNhOTmJjNqFnUuCSOu+IGyKIim4hRFhFZu9l6u38wOCqo3U11V3X3+3seHwNWV31Fqg5fnfrOOTKj0WgEEREREYnORewAiIiIiKgNEzMSRFZWFmQy2VV/3N3dERMTg+effx5qtdqs/c2dOxcpKSkWxXL8+HHExMTAz8/Pos8TkfOSSluWm5uL22+/HUFBQQg... | [
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is greater in Pair 2.",
"The magnitude of the magnetic force is greater in Pair 1."
] | null | 1 |
math | grade-2 | purchases-do-you-have-enough-money-up-to-1-dollar | false | true |
A can of tuna fish costs 91 cents. Do you have enough money to buy it? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADECAYAAADqBVUcAADOZklEQVR4nOzdd5xcVfn48c+9d3rbne29J9lseu8JAUIJVaSDCCqCiKJiV/QLKvbuV/QroqKEXhMIARJIKCG99+xme+/Ty73n98fsDtnUDYQiv/N+vfaV7OzMnXPPnLv7zJnnPEcRQggkSZIkSZIkSfpYUD/sBkiSJEmSJEmSdPrIAF+SJEmSJEmSPkZOe4DfGxOUruhn0iofvTGZ/SNJkiRJkiRJH6RTCvCfaYlx997wCQP31zrj1AYNtvbp3LQp+J4bKEmSJEmSJEn... | [
"no",
"yes"
] | null | 0 |
math | grade-3 | match-mixed-numbers-to-models | false | true | Which mixed number is shown? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABkCAYAAAC8REciAAAYjElEQVR4nO3dW2xbeV4H8O/xLbaP7Vwcx5dcmu0l6aSXtGmbTtJqZ0fMdFZCPCAk2BeQECBACBCCfYAHZoYFdmeRWIlqEVpp9gWJPoJY4IFZdqezrZumTdJM06nbmUwmaew4NyfxPfaxzYMbx7k4deLbsf39SFWlc46P/9H3wT+d8///f0IqlUqBiIiIiIiKQlHpARARERER1RIW2ERERERERcQC+6XQfKjSQ6BXYEbyx4yIiIgAVaUHUGlSWILzPSciKxGc/73zsA/... | [
"1 2/4",
"3 2/4",
"3 2/3",
"2 2/3"
] | null | 3 |
math | grade-5 | adjust-a-budget | false | true | This table shows Annie's December budget. What could Annie do to balance her budget? | "iVBORw0KGgoAAAANSUhEUgAAAn0AAAC9CAYAAADGBMtQAABUeElEQVR4nO3de1xM+f8H8NdM6SqVXJYNM9pqkowWpRYhdq0VSuu+bmtzCYnk7rsq182KhJ8Nuy5ft9w2LLnsJiISUu5pXWJt6d6k6XJ+f8y3YZqpOTPNCL2fj0cPOudzPp/3OXPO+/OZc4uTMx4MCCGEEELIR41b1wEQQgghhBDto0EfIYQQQkg9QIM+QgghhJB6gAZ9hBBCCCH1AA36CCGEEELqARr0EUIIIYTUAzToI4QQQgipB2jQRwghhBBSD9CgjxAiZTz9CMx... | [
"decrease spending on dinner with friends by $20",
"increase income from ice-skating lessons to $50",
"babysit for the Bennett family to earn an extra $25",
"spend $10 less at the planetarium"
] | null | 2 |
math | grade-1 | find-the-next-shape-in-a-pattern | true | true | What shape comes next? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADhCAYAAAC9ZMGZAAAftklEQVR4nO3da5Bc5Z3f8d85fZ2em2aERqOR8LAaCQErIYsYkV1A2GQjgRKzEBJstmqN107lhdm1N+XNOi5jUolZ21vl8np3va5KUnbwVorFCewmVIxBlUCQIcYSlperQdJw0wVJI81ImmvfzsmLoYeR5taXc3n6me+niipKmn6e5//Mv3V+ffr0acf3fV8AAAAArODGvQAAAAAAwSHgAwAAABYh4AMAAAAWIeADAAAAFiHgAwAAABYh4AMAAAAWIeADAAAAFiHgAwA... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAz4AAADhCAYAAAAJS2C/AAAlkklEQVR4nO3dfZAc9X3n8U93z9PO7LPQ7urJS7SSeIiEgBiwAwibJBIoMYHjzjapirk4V/eHyTm5Si4+V7Cv7uwkTlXKySWOq+6ukrNTV46ds+M7V4yNKsEB4wNLGAJYGJAWBJIWrR52Je3O7M5DT98fw4iVtFrNQz/8puf9qlIVSDu//v1++qq7P/3r6bY8z/MEAAAAIBYsy4q6C0ayo+4AAAAAAASN4AMAAAAg9gg+AAAAAGKP4AMAAAAg9gg+AAAAAGKP4AM... | 2 |
math | grade-8 | identify-linear-and-nonlinear-functions-tables | false | true | The table shows a function. Is the function linear or nonlinear? | "iVBORw0KGgoAAAANSUhEUgAAAFQAAABeCAYAAAC98DOnAAAGkUlEQVR4nO2cb0hTaxzHv2daQiX2x0Ax2xy0SYRjB4wQIhBbdknoRVeSCUGjQIK9CulVRC8CQTBBXH9YmRhFt9VGdGcLBKNgUBFpL1LJTZSEZVDmSD205764bPeuVnNPv+d0d3k+sBd7nvH8fnx2zs6zc378cOv+A5YP5EueBkhIkUKJkUKJkUKJkUKJkUKJkUKJIRP6/PlztLS0oKamBqqq4ujRo3j9+jXV8tx8+fIFnZ2dqKqqwpUrVzLOd3V1oa6uDhaLBfv378f... | [
"linear",
"nonlinear"
] | null | 0 |
math | grade-7 | identify-trapezoids | false | true | Is this polygon a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEACAYAAACJVgHaAAAm0ElEQVR4nO3deXQU5L3G8WcmCyFAQIKyE9n3TYqKKKIIhLAEl6pVilahblhRi1autZbrlSJWaFXUYtUqVEFRQgDDjihYqrKETUjYIYAQhBBD1pn7x4Q3wY2EzMw7y/dzTs/5/Zww85wK5zwO77zjcLvdbgEAAADwCqftAAAAAEAooWADAAAAXkTBBgAAALyIgg0AAAB4EQUbAAAA8CIKNgAAAOBFFGwAAADAiyjY3/P4mmnq/O5IbczOtB0FAAAAQcjBF82U2X5in9r... | [
"yes",
"no"
] | null | 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 | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAC4CAYAAAAxDlOsAAAV10lEQVR4nO3deZgcdZ3H8XdVdfd0TzLJTK7JfRACgYRLhYDgPiCgnB6rK+iz6D7og7sqz+7z7COyII8Kyiq6++x6466ycimKj3KJoCgI4UrIwZWDJEzuY2YyZ09fVfXbP6onc2QIPZme6uqZz+t58uSZ7qTnN/Ot/tSvvlW/LssYY/blYUsPdHngGkREyiJmQZ0DS2qhMQHWvpwxL3ZWelgiMtatmASxN3qCL2Yl4PgJQRqJiJRDlweb0rA3D5t7wO50gycUNiJ... | 1 |
science | grade-2 | identify-solids-and-liquids | true | false | Select the liquid. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKUAAADCCAYAAAAo2gI4AABfvUlEQVR4nO2dd5wlVZn3v+dU1Q2de/IwwzCkIYOSQTIiqLCouIb3FRV1zS66GABFUHRd91VXwIASVBZkDaDAggRJQwZJAwwzpBmYHHo63lh1znn/OOdU1R2COIHpgX78XO/c7kvfulW/evLze8QDg8bs0A6dAWMyJq+pDCuYX4FlTegN4aAe+3M5Bsgx2VTSGcAO7fbfIyr7uRwD5JhsSvH4i032M7lpDmVMxuTlZQyUYzLqZAyUYzLqZAyUYzLqZAyUYzLqJNz... | 1 |
math | grade-6 | interpret-histograms | false | true | While doing a project for P. E. class, Jeremiah researched the number of athletes competing in an international sporting event. Which range of athletes per country was the most common? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEECAYAAAASx0PMAAAuAUlEQVR4nO3deVSV9aL/8c9mEhkEB9TQ0pxDRQHTRMmB1OuUqJUes+mcUjPUspN2zvmtxrNuR9OrWV0qzBKzMseEk+MxBxQnBlFJcigRRByYRFGm/fvDxb6RiFvZm82m92stV+xn/Dw8uPrw9bufbTAajUYBAAAAsAgHWwcAAAAA6hIKNgAAAGBBFOw6Zu7cuZo8ebLOnTtX6fqffvpJkydPVmRkZA0nAwAA+GOgYNdy77zzjiZPnqxZs2apsunyb7zxhtatW2fVDDV... | [
"41-50 athletes",
"31-40 athletes",
"21-30 athletes",
"11-20 athletes"
] | null | 0 |
math | pre-k | compare-size-weight-and-capacity | true | false | Which top hat is shorter? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKMAAADpCAYAAABIr4eKAAAP/0lEQVR4nO3df1DTd57H8Vc8cJyEL/UAlZKKWUP4AulqSxq3MxpQD2ZbWM9aKlJ7vY66dXbPTtvbca7j7G1r6+3qOJ3d7e2snbNWZ/VqreuPs7c4OKuzi5zXbhUselDESbVpoYgBXUOytjhyf9BkA+FHEpJ838Dr8VdIYviITz7fX59E3R86e/v+t+sOAECHPgA6ECVGH/qgA/qARRlJSPqg605QfgyREknXX5wOONN1B0n+uTBPmQLHjGRkTGWQlBjur/tQd70... | 0 |
math | pre-k | subtraction-sentences-up-to-5-which-model-matches | true | false |
Which picture shows 3 − 1 = 2? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARIAAABKCAYAAAB3ndsNAAAP4ElEQVR4nO2de2xb133HP/fyKZGSLMmWbMWSJTm24/gRR1P8qp3EKbIUbpOmWdA1cJcGRbJk6doNw4ZiA7Ziw4D1n2TINqxrh3VZEwfYmsRLt6VFPM+Jk9SJHT8iW/VDthTbki1KFGXxfclL3v1BkxItUqRJSpTY3wcQpHvuveeeL/W733vOueccKoZhGMMRuBAEXwx0A0EQhBkxK1BjglXV0GwFZVgzjCPechdLEISFypZaMPcFExvLrLDGkXAZQRCEmfDF4Fw... | 2 |
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