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 | pre-k | fewer-and-more-compare-by-counting | true | false | Which group has more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAKgklEQVR4nO3d3W+UZQKG8XtKxUihCkUowdpUKyVNiHogEPwIFMUjD9VFYqLJJpoguJLo/gOb3ZgY1DScGTlR44qeSHRXlI8DICoiG0iqxcqHtVIsIJYWpQt99+ApSxMkzNCZ555n5volzUCQd24fe82QaWVyWZZl/SNSz1npzAXpfCYAJVKbk6ZNku6YIs2eLOX6z2XZl4PuWUD1WVQv1X53NvxkzmSprS7UCaA0zlyQuoelYyPSwbNSzeD58AvEB5TetEmhNUk... | 0 |
math | grade-3 | coordinate-planes-as-maps | false | true | What is at (3, 5)? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEnCAYAAACT/zRUAAB23UlEQVR4nO3deXyU5b3//9d13/cs2RNI2MENQWSRpQpaoYKI1SLaSms91WNdaqmtWm1te6o9bY/9fV1a26q1i+3RY4/LqbVVa7UVKyruC6KyqKDskADZk9nu5bp+f0wyEBJgJiSEgc/z8RhJ5p77uq6ZxOQ9Vz73dSljjEHkLJlyaWqJ7/d+Hdumf0XJfu+3pzU2x0imvE73J5Mu61e8wrb3nub40z5H/8EjMsc2rl7G8lcXAXDUuE8wavInM8cSrU28+cxfKR48mlE... | [
"hotel",
"bakery",
"theater",
"art supply store"
] | null | 3 |
math | precalculus | find-limits-at-vertical-asymptotes-using-graphs | false | true | The graph shows f(x). The dashed line is a vertical asymptote. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH3CAYAAACBwSh7AAB450lEQVR4nO39e3SU130v/r/nPrpLSEISAombwRYgbGwwwmBIIA41sWNIXDttmrin7WpzcmtX22/a/rryW6eH5uTbNMk3PU7q01/T2GnyTRonThwbCxsbDFgYAzIIJDAGAbogdBlpNJrrc//9MZoBgQRzebZmpHm/1mKBZp55z9Yws+cze/azt8UwDANERERERGQKa6YbQEREREQ0m7DAJiIiIiIyEQtsIiIiIiITscAmyiH79+/HwoULsWPHjkw3hYiIaNay8CRHoty... | [
"$\\lim _{x \\rightarrow 7^{-}} f(x)=-\\infty$",
"$\\lim _{x \\rightarrow 7^{-}} f(x)=\\infty$"
] | null | 1 |
math | algebra-1 | domain-and-range-of-exponential-functions-graphs | false | true | What is the domain of this exponential function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABj7klEQVR4nO39f3yU9Z3v/z/nV37/JIEEogkigoIERdGCULFYddXaQrcH21tb3a/7o926dnu+t+6nu9v2dHv8ePo9u92edW2369lubffWz7dbT9VWbKBYUWioRCIEiBYxQEiA/Bjya35fM3Ndnz9iIhGQDFxvJhMe9z/Emcz1nFfe18w1r3nnPdd4HMdxBAAAAMAV3mwXAAAAAEwnNNgAAACAi2iwAQAAABfRYAOYoK6uTjt27Bi/fPjwYc2cOVOdnZ1ZrAoAgNxBgw1... | [
"$\\{x \\mid x \\geq 0\\}$",
"$\\{x \\mid x>0\\}$",
"all real numbers",
"$\\{x \\mid x \\leq 0\\}$"
] | null | 2 |
math | grade-6 | which-model-represents-the-ratio | true | false | Which model represents the ratio 3:2? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAV4AAABLCAYAAAA4R++GAAAHNklEQVR4nO3dz29UVRQH8O/7MS2lpU0rnZZF040/wlYSumEFW4iJgRVRMMBCIxH/EjAYXQARNK4gMQpbWJkYMLgzBNFFw4J2iq1taWs7773r4pWEKHamM/ee++7h+9lAU3rPPTnTw33zzmsjY4yZ2QB+XwWWcyAzICIii9II2JUAb+wExnqAaGbdmHtLvrdFRPRqmBoE0ker5Qd7eoC3+suuTERE9iznwMMV4MkG8NsqEC9l5SfYdImI3NiVlD0WAJ7lQJy/8Ak... | 1 |
math | algebra-1 | special-right-triangles | false | true | Find t. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACHCAYAAAAslC4OAAAcxElEQVR4nO3de3DU9f3v8efuZjfXzQYIgahIkULwChoOIAbkUjCAKGoPVUcUtdiD/jr153Q603bsr85h7HQ846lzejlHSkXbevnVn4oIpBEICCJgMARomhAQEGpMIGEvyW42u/v9nj/WBBACSdhks5vXY4aBzd4+C/zxyjvv7/ttMU3TREREREREYsIa7wOIiIiIiCQTBWwRERERkRhSwBYRERERiSEFbBERERGRGFLAFhERERGJIQVsEREREZEYUsAWEREREYkhBWw... | [
"$10 \\sqrt{3}$",
"20",
"$2 \\sqrt{5}$",
"10"
] | null | 1 |
math | grade-8 | parts-of-a-circle | false | true | What is \line{CD}? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADJCAYAAABWm0bCAAAnEElEQVR4nO3dd3gU5cL+8Xs3PSGQQArSQ5dIh9BFSpAoIMWCCKLHIxy74kGO/jiW13p8Le9R1IPiEREQRewCghAQMCpVIiWQBIIBUiEhISF1f38gQ9aQGCUws5vv57q8fOaZ2ey9MH/cGZ6dsTkcDocAAAAAuAVPswNcDDab7YL9bH4/AgAAgJXUiYJPCQcAAEBdYTc7AAAAAIDaY7fZbFq3bl2lHf3799cll1xSaf7gwYOy2Wz6z3/+o3nz5slms6m0tPSCB7322ms... | [
"radius",
"center",
"diameter"
] | null | 2 |
math | calculus | identify-functions | false | true | Look at this graph: Is this relation a function? | "iVBORw0KGgoAAAANSUhEUgAAAQ4AAAETCAYAAADH+ejgAAAZn0lEQVR4nO3dbUxb590G8Ms0YLBDYEnt8GxLiaV2YUAbUBJeNLWqM60bC3TLouF9qbSgVWol+FSpiiIBA9YomdJ9CVlSbQpdp0kzW6pIOEul7hnZ9oGXJIrX4IioUYGmj0pwltgkPjYQ8PPB9fE5QODgt3OOff0kqwcwh3sJuXbf/3O/GMLhcBhERBuQo3YDiEh/GBxEtGEMDiLaMAYHEW0Yg4NWFQqFEAqF1G4GaRSDg1bldrvhdrvVbgZpFIODVjU0NITh4eEnfr2... | [
"yes",
"no"
] | null | 0 |
science | grade-8 | 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? | "iVBORw0KGgoAAAANSUhEUgAAAmwAAAGZCAYAAAA0Im0SAACV8ElEQVR4nO3de1yb5f0//lcIhxASoIUWEui5JLUnKmAPs1paPzq1pLqpm6Tqtt8s8bRNC+6zzQNU3dwmWD/TbQ3166Eq6OymEqrOU6mnHgxtqbY20HMhlBYoEM4kXL8/6H03N4dyyvHO+/kQIXfu3NeVtLz7vq+jhDHGEMAaGupx4sRJdHV1QiKReLs6hAAAQkJCMHlyHKZOnertqhARo/hHfBHFv8EFe7sC3tTb24va2low1ovQ0FBvV4cQgYaGeqhUKoSEhHi7KkS... | [
"sample A",
"sample B",
"neither; the samples have the same temperature"
] | null | 1 |
science | grade-8 | use-scientific-names-to-classify-organisms | true | true | This organism is a jungle cat. Its scientific name is Felis chaus. Select the organism in the same genus as the jungle cat. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADMCAYAAAAGVtdxAAEAAElEQVR4nOy9eZgkVZm3fZ+IyH2tyszK2vfe94aGZmtFQBYRFREQVxjHcRsdmVFcXuVFHfdBHQf3j3FBhxlxGMQVAWVroKG76b27urv2Paty3zMizvdHZBXd2CBqqyNv3NdVV2flEnEizsnq5zzn9/yOkFJKXdcxTRMbGxsbGxsbGxubk4WiKGia9pduxv9zKHZwb2NjY2NjY2Nj86fANE10Xf9LN+P/ORQ7uLexsbGxsbGxsflTYceaf36Uv3QDbGxsbGxsbGxsbGx... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA6IAAADMCAYAAABp7h4wAAEAAElEQVR4nOy9d7ilVX32/1nlKbudOn2YYZiBoRdRFEVICKKohCghFqzwGqNo4iuJYvkpL9GoicYSgxr1MhrLa141xpAmliSKqENzKCqdYXo5dbenrPL7Yz1nzwwMMCpqNPu+Li7O2Wfvp6317Hnu9b2/9y28994Yg3OOIYYYYoghhhhiiCGGeLQgpURr/cs+jP9xEEL8sg9hiCEeEXJIQocYYoghhhhiiCGG+HnAOYcx5pd9GEMMMcR/Q+ghCR1iiCGGGGKIIYY... | 0 |
math | pre-k | select-solid-shapes | true | false | Which shape is a sphere? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAVPklEQVR4nO2de3hU5Z3HP5nMLZPLkGQCCcyQOxcFCXINCKhAFeVqferuPtunffbps6x9nt3ts7u23mi31lKrVmmFqhVXVBRBKFYoChhQCgQTIgm3JBACyaQhxIQkQxLGkJj9Y+ZMMoRLQmbmXOb9/KNz5sx5f46fvHPOe973eyK6u7u76zqgoh0udUFnNwKB4tBHQGwkZFtgmBEi6r7p7i5wyV2WQNB/psWB/nS750WKEUZHe6wWCJTGpS4ob4PzHXCqHXSuTs8... | 2 |
math | pre-k | pennies-nickels-dimes-and-quarters | false | true | Which coin is this? | "iVBORw0KGgoAAAANSUhEUgAAAKsAAACrCAYAAAAZ6GwZAABiJUlEQVR4nO19XUhbabf/b8rBCMEYEwQ/YnDCKKGOMR1QhLSgGEo6rRehpTpvy7RwpvJKKWUYpjTQi14UIh2GQYYi2DlQh/aMliletD31XyIWbKAonMb4pgR9iTkxfoAYt5GA8UL/F5m1fPbOjtqv6cfMglI1yc7ez157PWv91m+t9cnW1hb+lpeXzc3NrX379n1CPwOAJEnQ6/WQJInfl0ql+GetVgu9Xg/63N/ycvIf7/oEPgTZ3NzcIgVMJBJYWFjA2toaCgoKtgB... | [
"dime",
"penny",
"nickel",
"quarter"
] | null | 2 |
math | grade-1 | rhombuses | true | false | Which shape is a rhombus? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAGn0lEQVR4nO2d204bVxhGP3O6SJP2rlUeoO0j5AX6RH2qvkDbhHLDTSIlSK0UzCnFAkWhgwoSMsFSXMzuxQ6JCT7MwOy9/8O3bsDYOBOzDOP5Zy93QgihGgJ/D4DzEXAZQMi9WeoAjxaB7x8A360AnepDCC/7pTeLWObJ18DSm0G88HgF+PGraCEh9+V8BOxeAP8Mgb0BsNC/jFdQMtImjxajUwDwfgQsjMauIKRNrp36LwALZTeFeIGikSxQNJIFikayQNFIFig... | 1 |
math | algebra-1 | identify-linear-quadratic-and-exponential-functions-from-tables | false | true | Is this function linear, quadratic, or exponential? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEqCAYAAAAvYSeKAAAg6klEQVR4nO3deVSV1eL/8Y/IqKKYhnkNFIeEUJJSSGmyUhqWlZkilCRXk645fL8N2C2nSK3UCqnEBge4DiyQyjSugt40r1fIa5qWgpk5kJr8RL4MTnjk94fL0zqBeYyNcPD9Wovl4jn77L0f/nr7rOc8p1FlfFClHMFzK6UPBtT1LmrfpO/qegcAAACoAae63gAAAADQkBDYAAAAgEEENgAAAGAQgQ0AAAAYRGADAAAABhHYAAAAgEEENgAAAGAQgQ0AAAAYRGADAAA... | [
"exponential",
"linear",
"quadratic"
] | null | 2 |
math | grade-8 | apply-multiplication-and-division-rules | false | true | The number line shows two unknown numbers, x and y. Is xy positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAIRUlEQVR4nO3da2hU6QHG8efMZCZjLsZ4W7WrZmupNlgkGGOSuioL3YW62kbcgrZ1XUoFxRZkQb9saamp1IJFupGtxUJxNSvbEtlaynaxWxK7kKs2ZTCxYHPRzbrGrLfcJnM5/TCZ0WBizG3eOfH/gyRnTvLhgTM588w773mPZdu2LcDBysvLZVmWtm/fbjoKEoRjDgBIZimmAwATdf36ddMRkGAccwBAMnvqgh0MBtXQ0KCamhrNnz+fkSMAgDGVX0RU1h5S431bbf2... | [
"negative",
"positive"
] | null | 1 |
math | kindergarten | select-three-dimensional-shapes | true | false | Which shape is a cone? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAQ6UlEQVR4nO2de4xU13nAf3f2zWvXrGF5rQGbxRBsQ8AGO3ZM6zhN2iZ205rKDrJdt35VamUpiiKlUh9q/ugfqdSqTRTHxsUxiRIcpDh2Y9UmxOAnkOAaYwNe1mZ5GDB46cIu+2Aft398M7N3ZmfZmTP3de5+PwnNzL1nzv3Y+ebM9zrfdVzXdU9dhLYe6BqCQRdFiR2VDkytgJZJ0FQNzql+1919PmqxFKV41kyDykM98mJ2NVw9WbRaUeJG1xB8cAFOXoTWHki... | 1 |
math | grade-4 | is-it-a-polygon | false | true | Is this a polygon? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD6CAYAAACbKDARAAAKW0lEQVR4nO3dv45cZwHG4dfIQQRcxEmoohAa6OECENcAJQLb4aYoEFkHuJjcBdhK5bWdYki7KdYm683s7pmZ75zv3/M0I41Gmrc50k+fzpy5d3FxcREAAKCIH9UeAAAAIxHYAABQkMAGAICCBDYAABQksAEAoCCBDQAABQlsAAAoSGADAEBBAnsmu/Pkq3/VXgEAMLT7tQewkd2L5OxJ8vp58t77yW//WHsRAMCQnGDPYHf+fVx/8Eny69/XXgQAMCyBPbrdeXL2+Pu... | [
"yes",
"no"
] | null | 1 |
math | pre-k | one-less-with-pictures-up-to-5 | true | true | Count the cars in this group. Which group has one less than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABmCAYAAADxjOYpAABEaklEQVR4nO3deXhc12Hf/e+5986+DzCDfSHAnRQXrZRkUrLkPani2E7U2I5b23nT523c5EmaLqmdNM2ePE2bJmkbv05sN0ljx5GtSHYkS5YoUZZIiRT3nSD2dYDZ95k7c8/7xwAgKZIyKQMkSJ/P81AUMDN3Bvfwd8/BuWcRUkqJoiiKoiiKoihLQrvZH0BRFEVRFEVRbieqga0oiqIoiqIoS0g1sBVFURRFURRlCakGtqIoiqIoiqIsIdXAVhRFURRFUZQlpBrYiqI... | null | [
"iVBORw0KGgoAAAANSUhEUgAABCEAAAB+CAYAAAAa5QvPAACEfUlEQVR4nOzdd3wc533g/88zs7O9YRe76IUACfYuiVRvtmU7iRP3FNuJS3J3qZfyyyXnFKecc0kudz7nnMSXYjuXxE7suEgukiWri+rsJEiCRG8LbO+7szPP748FQVIkJVEWIUh+3q8XC4DZ2cE8+51n5vs0AUgURVEURVEURXlVSCmZr8PpMhQsaKi7bUVRfkA5BAR0WOeFNmfzewKVhFAURVEURVGUV818TfJM/rU+CkVRlNVlTxDiTnC81geiKIqiKIqiKG8... | 1 |
math | algebra-1 | identify-linear-and-exponential-functions-from-tables | false | true | Is this function linear or exponential? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEqCAYAAAAvYSeKAAAd9ElEQVR4nO3de1SVZf738Q+4hcFA8oTgAQEdATVHHZTMzDxEToflmKPhIaNF6mhZthjJmlRyLckD8xOtgLE0tZgMtDQLBa10mBzIZz2eGqHDSJqGA6WEoCCn54+W+xl+qIBet7jh/VrLP7juva/ru/97e6+bjVPulJM1cgBdlrXXDwvONvUYNyQwuXtTjwAAAACLOTf1AAAAAEBzQmADAAAABhHYAAAAgEEENgAAAGAQgQ0AAAAYRGADAAAABhHYAAAAgEEENgAAAGA... | [
"exponential",
"linear"
] | null | 1 |
math | grade-8 | similar-and-congruent-figures | false | true | Are these shapes congruent? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEACAYAAACJVgHaAABmRklEQVR4nO3dd3hU1dbA4d9MeoGQEJKQ3ugpQBJCSygiAUW6gCgqioKIFEVFUbzXcvFiA8XCZwEbCHKlV+kdklACAYE00iEhBUhIn++PgcEx9JQzSdb7PHm4ObPPnDXXJLNmn7XXVmk0Gg1CCCGEEEKIaqFWOgAhhBBCCCHqE0mwhRBCCCGEqEaSYAshhBBCCFGNJMEWQghh0IYMGcLcuXP1jpWXl2NhYUFSUpIiMQkhxO1Igi2EEMKgxcTE4O/vr3fs9OnTmJiY4OH... | [
"yes",
"no"
] | null | 1 |
math | grade-2 | am-or-pm | false | true | Kelly is watching the sunset at the park. Kelly's watch shows: What time is it? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACwCAYAAAA16xkbAAAPS0lEQVR4nO3dX4yddZkH8Gc6lYI9yJ8APWSVhLYKuwhzqpiYTOu/sGnjbjYrxXDhpsVE2A1FF7rZ9kJb49QLqateLC2r3RjQFLLa9sKNuzMYRaGzqGyk43/knMoq4gx/hZ6hf6DMXjQdZ05l5rzn/M55O/N+PldnMuf3vs9kevGdp8953p6JiYmJAAAAkliQdwEAADCfCNgAAJCQgA0AAAkJ2AAAkJCADQAACQnYAACQ0MK8C2jVkSNHYt++fTE8PByPPvpo/OIXv8i... | [
"7:45 A.M.",
"7:45 P.M."
] | null | 1 |
math | kindergarten | are-there-enough | false | true | Are there enough paintbrushes for every paint cup? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACgCAYAAAA2PRuAAAAcCklEQVR4nO3deXCc933f8c9v7wPX4j5IEZRIUUcoSrIsX5ItKXJt15FnIqdKY8czbO02cRMnco/U08ZuMp2mtjqjurGrHhknHjt1popd15FtZSTHqizJlHVQoiiKp3gBBECAwB7Y+3r6B0iQFCkS4D6L3f3t+/WH7QF28fzefB7PfHfx7A/GcRxHAAAAAFzhafQCAAAAAJswYAMAAAAuYsAGAAAAXMSADQAAALiIARsAAABwEQM2AAAA4CIGbAAAAMBFDNgAAACAixi... | [
"yes",
"no"
] | null | 0 |
math | grade-2 | compare-clocks | false | true | The clocks show two things Brenda did Thursday night: Which did Brenda do second? | "iVBORw0KGgoAAAANSUhEUgAAAcwAAACiCAYAAADMUv0YAAA67klEQVR4nO3deVxU9f7H8dewMzMw7IgboGC5sbhbrrdMzaXVdpNKbXEJ723Rm97qWtlP62qZ99bNvJj3ZqXWLS2z1BCtMEsQ9aaCCZjCKPvMwLCe3x+ToyMgAyID8nk+Hj6EM2f5zDDv+Z4553u+R6UoioJos6rLayj5tQxDVhklWaUYssow51VSaaiisrSaqtJqKoqrUDmBm7cLLmpnXNXOuHq74hnkilcXNV5hnniFeuAV6omzu5Ojn5IQbZ7k8uqkkgazbak213A... | [
"talked on the phone",
"listened to music"
] | null | 0 |
math | precalculus | find-limits-at-vertical-asymptotes-using-graphs | false | true | The graph shows f(x). The dashed lines are vertical asymptotes. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH3CAYAAACBwSh7AACq3klEQVR4nOzdeXhb9ZU//rdWS94dO7EdJ3ZWOzhkISEbkCYsAylQWgIMdKPMTDtth67Tdkr767f9DkM7/bbQTju0w3SmU2hhpgOF0hAIISUhCQ7ZTOLEzmLHSRwv8SJblrVfXd37+0OWbCdeJOte3Sv7/XqePjT2vUfHsiQfffS55xhkWZZBRERERESKMGqdABERERHRVMICm4iIiIhIQSywiYiIiIgUxAKbaBrZvXs35s2bh7vuukvrVIiIiKYsAy9yJJo+brvtNnz... | [
"$\\lim _{x \\rightarrow-2^{+}} f(x)=\\infty$",
"$\\lim _{x \\rightarrow-2^{+}} f(x)=-\\infty$"
] | null | 0 |
math | pre-k | subtraction-sentences-up-to-5-which-model-matches | true | false |
Which picture shows 5 − 3 = 2? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARIAAABKCAYAAAB3ndsNAAAMtUlEQVR4nO3dW3CT95nH8a/Olm1JPuOTWmJwSBonYwNjQswyZJnMZMK0QMoA2aQ5bHuRSXqgbdrZGZjZ5KLskO5Fdrcz2+nOtJlMaLOUHJYEk0CZhpSBlMWsKZhgbEwS2+AYHyQfJOu8F0KyZcuSrFeyhHg+N/g9/d//j3n0+JVeWVIFAoHAgBu6HTDuA28AIYSISasCkwbq82GJHlQDrkDgzFimpyWEuF2tMYO2yxFcqNLDioJglxFCiFjGfdA5CTfccMUB6jF... | 0 |
math | algebra-1 | interpret-the-slope-and-y-intercept-of-a-linear-function | false | true | Sandra is making popcorn balls for movie night with her friends. The amount of sugar Sandra needs depends on the amount of popcorn she uses. This situation can be modeled as a linear relationship. What does the slope of the line tell you about the situation? | "iVBORw0KGgoAAAANSUhEUgAAAioAAAI0CAYAAAAz7AJYAABsIUlEQVR4nO3deXxM9+I+8GeW7HskEkKCqqiIkCD2cotqdbEWpWgrt7rRFqVoEKRK0Spd1L60Smlve1HbraVBEASxppVEQrZmX2Y95/eHr/yEQRKTnHPief/jlTOTmSfHZObJ53zO56hEURRBREREJENqqQMQERER3QuLChEREckWiwoRERHJVq0vKt26dcMvv/xS9vWvv/6KJ554AoIgSBeKiIiIKqTWF5VWrVohISGh7Ovo6GjMmjULanWt/9GJiIgUT/Gf1mvWrMG... | [
"Sandra needs 2 tablespoons of sugar for every 3 cups of popcorn.",
"Sandra needs 1 tablespoon of sugar for every 3 cups of popcorn.",
"Sandra needs 1 tablespoon of sugar for every cup of popcorn.",
"Sandra needs 3 tablespoons of sugar for every 2 cups of popcorn."
] | null | 0 |
math | grade-3 | compare-area-and-perimeter-of-two-figures | true | false | Which figure has a greater perimeter? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAIEAAACTCAYAAACpvnrAAAAN5UlEQVR4nO2dXUwUd7vAf7vLgl2wiwKtipYKgq4ornwIftRXq+3bF1/Fg2la42lok7YXJ7FNjO0FF72xF03apm1s0xtjcpomR1ObfggWFnFRWr+KhhYR8QMCzRbO2ba6oGvdss65WGbLN8Lu7Hz+bgRmdvYZ97fzzDP/medvEgRB6A3AdT/0B2FAwEDjxJlgpgWybfBoPJh67wnC+T65wzKQi+KHIe6aP/TL3HhYnBgyxEDb9Aeh/Q70BOCqH8x9A6EFhgD6YaY... | 0 |
math | pre-k | ordinal-numbers-up-to-fifth | false | true | The first picture is a tractor. Which picture is fifth? first | "iVBORw0KGgoAAAANSUhEUgAAAaUAAABdCAYAAAAFZHluAAAlnElEQVR4nO2de1yUVf7HP2cuMMMgg2goUN7RbDWwxM1U1LTS3SXNXDXbUuu32q6KeWlL3RXJWxe1vOQtFLPdzUuZRqtpmpDW2oKCl9IESjHBNBFkhrnz/P44c3uY2zPDDAzMeb9eJT7Pec5z5nA83znnfL+fL+E4jgODwWAwGEGAqKkbwGAwGAyGBWaUGAwGgxE0BMwoVRk4dD50B32+rEGVge0QMhgMBsMzPhmlfRUGZF7UujU2ub8acbm2DkXVJkw5VetzAxkMBoM... | [
"barn",
"sun",
"tractor"
] | null | 2 |
math | grade-4 | fractions-of-a-whole-word-problems | true | false | Today, Jenny is working on her reading homework. She needs to read 3 pages. Jenny reads 1 page in the library. Which model represents the fraction of the reading homework that Jenny reads in the library? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUkAAABKCAYAAAA2aaayAAACE0lEQVR4nO3XMU7bcBjG4c8hYQDabq16gJahB2DgChyhJ+iBOAFH4Aos7AyU7qUrgUikRP8OFmrV4ZVCSR2U55ls2ZY+ydLPn7vWWrueV32bVU0XVQ+tADbWuKt6tVX1Yafq3XZVd33f2vnN0GMBrJ+D11Xjq1l/8n67an+3LyjAppouqi7vqr7Pq77OqkY3D/0FgQToO7i/2x/fLqpGiz8uAPC7hz9b1WjYUQDWm0gCBCIJEIgkQCCSAIFIAgQiCRCMl32gOzp... | 0 |
math | grade-7 | identify-complementary-supplementary-vertical-and-adjacent-angles | false | true | Which angle is vertical to \angle{2}? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD5CAYAAAAdvEK/AAApcElEQVR4nO3de3TU9Z3/8VcIRJ1ikhoxaxbLIN3DWI8y0xNEI12SGjVcyiRgkGVQAttidN0SjwW8oKLCHuG4a3IWa5ZyIKskYGJIAgqxpmZUjIawZqhdd6xaBpFo6C86CTirsXF+f7hJAySQy8x8ZzLPxzmeg3P5znvO8Y8Xb1/z+cb4/X6/gBBwuVyyWq1GjwEAABBUo4weANHB5XJp7dq1Ro8BAAAQdARsBN3vf/97zZgxQ16v1+hRAAAAgi6GigiCyev1asqUKfr... | [
"\\angle{4}",
"\\angle{5}",
"\\angle{3}",
"\\angle{6}"
] | null | 1 |
math | pre-k | fewer-and-more-compare-by-counting | true | false | Which group has fewer? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAJIklEQVR4nO3d24+cdR3H8c9sD8aeEBZLG1ybxWVLmhDrBbTWUw8KV14WgyjBhERjLQhJ+QtMjEYR05BoQiAaSxTsjUQiKG0voMFWJIGkumXtwVq72IPYdqtdu328+HXSGnbpzM4zz+f3feb9SprSQGa+F30zMDvdT6MoimJsQho9J52ZlC4UAtAlsxvSwlnSzfOkG+ZKjbHzRbHntPssoPesWiTNfutc+sXSudLy+alOAN1xZlIaGZeOTUj7z0l9py+kv0F8QPc... | 1 |
math | grade-5 | three-dimensional-figures-viewed-from-different-perspectives | true | true | If you look at this object from the top, what will you see? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEjCAYAAAAIbnZCAABPgklEQVR4nO3de1RUd5ou/oeLioZLgXiBaICBDsRIIkOhEVYLZNbKRVsgv46jkfQB5hgwmkRROenpqBReerqDATQxAdsTYSLEtJmTElsTnWmpkBGJQFOtRCXBoRSsQkEoLoLcf3+UtSOKyqWqdhU8n386hVV7v6i91sPXd7+vVX9/fz+IiIiIiMggrMUugIiIiIhoLGHAJiIiIiIyIAZsIiIiIiIDYsAmIiIiIjIgBmwaNa1Wi7i4OFhZWSElJQVarVbskoiIiIhEY8U... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA1AAAAEjCAYAAAA8MuB3AABYSElEQVR4nO3dfVTVdb73/yeChsa9t5AGHJmkkpLLjRauEWjW6sZGwN+Mo0nnB15XiWWlqExzzWhs0uackyZYWeJ4jXAmHLs5v7Y4WnrOiT3OkUxw4KipFF7sREFFcQsICgK/P7bstMxQNmxuXo+1Wrp17+/3jThn+Trv9/f9cWlra2tDREREREQcwsXFxdklSBca4OwCREREREREegsFKBERERERkQ5SgBIREREREekgBSgREREREZEOUoCSTrNarcydOxcXFxf... | 1 |
math | grade-2 | equivalent-amounts-of-money-up-to-1-dollar | true | true | Look at these coins:Which group shows the same amount? | "iVBORw0KGgoAAAANSUhEUgAAAUkAAABNCAYAAAArbJYKAABjOklEQVR4nO39d4Bd9X3njb9Ovb3P3Om9SDPqvYteDcbGjjG4xZs4TrLe2HGSZ1OcskmelP1tNpv8tiSu4MQNYzBguiRAAvWuURmNpmj63Jm5vZ3+/HEHOcnaDmBAwp73P4BGSPd17jmf8/l+quA4jsOiFrWoRS3qR0q82h9gUYta1KKuZS0ayUUtalGL+glaNJKLWtSiFvUTtGgkF7WoRS3qJ2jRSC5qUYta1E+QfLU/gOM4vJZg1zSNmekpkskkDqBrGuFwiLq6enz... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAboAAABxCAYAAACjr2ZGAACKsUlEQVR4nOy9d2Bc53Wn/dw6d3pD7x0E2HtT75IlF7nLPbbjdTabtkkcx07ZTTZlN/sl22PHdiT3IkuWZfVOUeydAAkCJECiYwBMr7d+fwxIWbG6KIm25/kHEgFc3N87M/e857ynCIBDhQoVKlR4URzHYVaH03nIWGBWnpiXPLIAfgm6PVCrgkDF0FWoUKHCSzJbctiXfrvvosLrZXMA5Lf7JipUqFDhUmYkX/5ar0Kvt+wpVLi0yVhwKgczOgznQXy7b6hChQo... | 1 |
science | grade-5 | use-evidence-to-classify-animals | true | false | Bony fish are a group of animals with similar traits. The following traits can be used to identify bony fish: They have fins, not limbs.
They live underwater.
They have a skeleton made of bone.
They make eggs with no shells. Observe the animals and read the descriptions. Select the one animal that has all of the bony f... | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAp8AAACmCAYAAACcAuREAAEAAElEQVR4nOz9R6zt25bf933HDP+wwg4n3nxfvvXqVS6SVSWqSJu0ygEwLJk0YMsddQwYcMNyx1037I4ACWrYLcOWRFuQDNqg4QSRokgxiVVksYoV3mO9eO+76dyTdlrhH2YYw411SejYbb0C6v4/vQ2cs/baB/+DPdacY/yG/Pad2Xtr2HoWi8VisVgsFov/SuwrfO8IsitmS+G5WCwWi8Visfiv2r6CmJn9cb+RxWKxWCwWi8UXQ/gvf/GX/oP/COcNcDQVHI4... | 0 |
math | grade-7 | mean-median-mode-and-range-find-the-missing-number | false | true | Eli has the following data: If the mean is 16, which number could u be? | "iVBORw0KGgoAAAANSUhEUgAAAYAAAAAkCAYAAACAPe3zAAAHX0lEQVR4nO3de1BU5xnH8e8eFhBcLgkXgSKKRCgSUKxJFDGoqSYyI2hTmybpeBlrW2qxk+nUaYc0hoylyeQyiSZtoiYzahtFq6khHcRGJWkEiRohKngJt4QRRESIwMLuwukfRswGiCxdzsHs8/lvX/ac85uXh/Ps2XPBoKqqCmDpsdFh7aRb7UFFCCHEd4kBcDMoeLuPwkMxXh9TVVVtt3VhtnXpm04IIYQmvI2eeBs9MVp7umXnL4QQLqTD1oW74obSITt/IYRwOR0... | [
"25",
"15"
] | null | 1 |
math | kindergarten | rectangles | true | false | Which shape is a rectangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAACgklEQVR4nO3cPW5UZxSA4TPjn4KYUCWIGiVZAmtIthRK1pRFsANiRIuRqGxsCcejm+IKid6jd6LJ81T30ycdneLVV97NsizL1f3M+7uZm93MwzLwaKebmacnM788mXl+PrO5+rosb68PvRbH7NWPM6eXd+vhxfnMbz+sFcJj3exm3t3OfLyf+ftuZnv9sF6IjH16erI2NTPzZTez3X13Afv0ral/lpntYVfh/0JoJIRGQmgkhEZCaCSERkJoJIRGQmgkhEZCaCS... | 0 |
math | grade-1 | subtraction-sentences-using-number-lines-up-to-10 | false | true | Which subtraction sentence does this model show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABhCAYAAADsidaRAAAUiElEQVR4nO3de3BU9d3H8U8SEmIIuQAJmDYmhg4gGLlKuNRycUCsVaBKhI4j0SIW61ClD4OonYKmBWu1OtJxRDul1Ibh1gTRMjgDJuFpyIWQyCMMWMEQYhJKCIm5kizZ54/jbghByMYlZ8/J+zXD7O7Znc33Ry7ns7/zu/g5nU6nAAAAAHiFv9kFAAAAAHZCwAaAbzQ4pI9KpUf2S4HvSmsLza4IAGBFfcwuAAB8xY5T0tP/K7VJcjB4DgDQTfRgA8A3Fg+T6h6XPn/... | [
"9–6=3",
"9–1=8",
"11–1=10",
"9–2=7"
] | null | 1 |
math | algebra-2 | describe-linear-and-exponential-growth-and-decay | false | true | How does h(t) change over the interval from t=2 to t=4? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAABwX0lEQVR4nO3de3RT95kv/K8syXcbGxtsMNjgEExsbHMNMWBsAgkEEibQdkh72pyclbaBQNLTdc7M6pnV6TvTk5XT98y0s5oGQtJ2cpm3azrNlKThYggEYzsm4eKAsc3NMeAL4ItsWdZ9S9r7/UP4xs0S7J+3ZH8/a7G0JWs/PN5b+u1Hj3/aW6coigIiIiIiIlJFhNYJEBERERGNJSywiYiIiIhUxAKbiIiIiEhFLLCJaJj169fjww8/vOPPvvzySzz22GPweDwAgH/... | [
"h(t) increases by 200%",
"h(t) increases by 400%",
"h(t) increases by 4",
"h(t) decreases by 4"
] | null | 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 | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAC4CAYAAAAxDlOsAAAa2ElEQVR4nO3dd3wUdf7H8dfuJrspJCGFFEJCEQIEQjWANEHFQ0XlFGynnu13d3o/znaenmIHxfZT79Q79VQ8RU8QFOmHClFIqIFAEpJAOmmkl03ZbPn9sWEhBY1kM7NJPs/Hg4fJd2ZnvuNs3jvzmfnuaGw2m63YBCfqodYCZhtCCOEUbhrw0cEILwjRg6a4yWbbV6N2t4QQvd1UX3A7Xm//JUwPI73taSSEEM5Qa4F0IxSZIKMetDVm+wQJGyGEs/no7NkCUGc... | 0 |
math | grade-1 | equal-sides | true | false | Which shape has 3 equal sides? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAADvklEQVR4nO3avW4UMRRA4bObnwICdCAeACgpeQyeldegowzQE9psiJSQ1VAMQUnI/85c29fnSJZsWbJu8WmqWQzDMBycwvdjWK3hbMBs47YX8GwL3jyBV7uwODgZhs+HpceyzH14DtvfjsfD611493RUaLZpqzXs/4Ifp/D1GJaHZ+OFyGzKnm2NpgCO1rBcX7gwm7JzU78HWJYdxXpJaBaS0CwkoVlIQrOQhGYhCc1CEpqFJDQLSWgWktAsJKFZSEKzkIRmIQn... | 2 |
math | grade-7 | bases-of-three-dimensional-figures | false | true | Look at this figure: What is the shape of its bases? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADgCAYAAAA5ZRHsAAAeVElEQVR4nO3de3RU9b3+8WduySQTEhjAgIGQaENFT1SkUgttOfWgldVDRI3lR6gieCXWWltX6z1eQIoXBBRQtIpgUItaEaQWlNOGiyFcTZQKKA0xECMhF3LP3H5/hFBCUEjYMzvJvF9rsUL27Nnfh/jPk+2e78cSCAQCAgAAAGAIq9kBAAAAgO7EbtbC9fX18vl88vl88vv9rb6eyt/bc25XeV+w1mhoaDj6c4+Li1NRUZFiY2PN+k8PAADQrVlaHhF54IEHlJOTY3j... | [
"triangle",
"rectangle",
"circle",
"square"
] | null | 0 |
math | grade-2 | which-shape-illustrates-the-fraction | true | false |
Look at the colored part of each shape. Which shape shows three-fourths? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHwAAAB8CAYAAACrHtS+AAACiklEQVR4nO3doW5TYRiH8f9pu4mxMRQEN0OxoKZIuAMcFzDBFUwj0FwBggvAcQckuCnsNgSO4si6NdlY8yEOTQiOr6OH0+f5uZOTk77N0y8VTd42pZQyuUo+z5LpPLku0RoZNcnOMHmwldzbTJrJZSlHZ12PpVXYv52MTmftxf3N5OGt9tOg9TGdJ8cXyder5GSWDM6u2xvGXk87w7ZtkpzPk8H8txtaT4u2P0oy6HYUrZrBYQwOY3AYg8MYHMbgMAaHGdU89Pb... | 0 |
math | grade-3 | reflection-rotation-and-translation | false | true | How has this figure been transformed? It has been... | "iVBORw0KGgoAAAANSUhEUgAAAPoAAABkCAYAAACvgC0OAAAOM0lEQVR4nO2dX0xUVx7Hv3dGmEEQBhOly5j6py5IgpI2C7gPCyjurn0oRXdrUhKh1rQv4sM+mF3NpsG4sSRt9gXZh22iAklJalaoPlStf3ZoH8q4aRFMYAympemYnT7gMIgzQOeefZgOy/85986dc89wf5/ENCXn/M7JnN/3nv+/o1RXV7OamhoYgcfjAWMMZE+/vXv37hliy2xqamqk/p2tZm9dTU0NWlpaDDF49uxZMMbIXhL21grkV3LZsxliiSAIqSGhE4QFIKE... | [
"rotated",
"reflected",
"translated"
] | null | 1 |
math | grade-3 | select-fractions-equivalent-to-whole-numbers-using-models | false | true | Count the equal parts. What fraction does this picture show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABkCAYAAAC8REciAAAug0lEQVR4nO3de3iU9Zn4//ecJ3NIJmYMmYSSkCBECJIyFSpha8QU3QotUGzVS5T9tmW3FV22tfWw3Uv8/dxWrW75raeWtrsB9lvt4iJe0F2hgcUuoRvcsImEo+SEJJNg4sxkzuffH08yIUxAPCRouF/X5cXwPJ/n83ye56+b2/u5P6pUKpXiM66/vx+r1Yper7/cSxFCCCGEEFc47eVewMX0tb6Jt6sJ/N3Ezh7FpDMQ7DwwYsy7utm053wdVSLIPPcGDETT53Km/hn... | [
"4/2",
"2/1",
"2/2",
"1/2"
] | null | 2 |
math | grade-1 | match-analog-and-digital-clocks | true | true | Look at the analog clock: Which digital clock shows the same time? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABN50lEQVR4nO3de3RU5dk//O/ee045zCQhRA4JZxUSLCcrCVrRVw0+Fet6H4N9RH3aYn+t7VoPha6KXettoUuwf1ToErRrtepPaJ9atRV831XB/kzEp41FEq2cKhOxEkAmhBhCkp3THPbs/f4xyZCQOdxzyswk389aLDIz9+y5DbOda+593dclGYZhgIiIiIiIkkJO9wSIiIiIiMYTBthEREREREnEAJuIiIiIKIkYYBMRERERJREDbCIiIiKiJDKlewKUAfwG4DdgDP4... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA5oAAAEJCAYAAAD1mFhPAABYrUlEQVR4nO3de3RU9b0//PeePbfcJgkhcknCVYUklJuVBKzYnxpsi3U9P4MXqr2AtbZrHU/wUexaTwsewPNHBQuo65yqFdpTj4oQn2dV0WOi/tq0QIIVgZKJWK7NhBBDSLJzm9ve+/ljkiGXuey5zyTv11qszOW79/4aZnA+8/l8P19BVVUVREREREQUFYIgJHoKRAmnS/QEiIiIiIiIaHxhoElERERERERRxUCTiIiIiIiIooqBJhEREREREUUVA00iIiIiIiK... | 1 |
math | precalculus | find-limits-at-vertical-asymptotes-using-graphs | false | true | The graph shows f(x). The dashed line is a vertical asymptote. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH3CAYAAACBwSh7AAB5KElEQVR4nO3de3hU130u/nfuM9JIGiGBJMASxhhsYcTNwsZGBgcSE0jcQOqQtLlfTpvm1p62SZqTk985Dc3JSZukaZ3U7aljO7Ub1yTOzSDbOGCDhTEgg0DiJgQICaHLSDOjue7774/RCAQSjNBemhnxfp7HFprZ+9XSaGbv76xZey2LYRgGiIiIiIjIFNZMN4CIiIiIaCphgU1EREREZCIW2EREREREJmKBTXQL2bVrF+bMmYONGzdmuilERERTloUXORLdOtatW4e... | [
"$\\lim _{x \\rightarrow 3^{-}} f(x)=-\\infty$",
"$\\lim _{x \\rightarrow 3^{-}} f(x)=\\infty$"
] | null | 0 |
math | grade-7 | identify-equivalent-linear-expressions-using-algebra-tiles | false | true | These tiles represent the expression 2(6x+4). Which expression is equivalent to 2(6x+4)? | "iVBORw0KGgoAAAANSUhEUgAAAeQAAABoCAYAAAAgq4PuAAAIYklEQVR4nO3dQWxUxx3H8d/bXdeUtWOnDgsEFwooSm2nrezURsoBRWmRkvRU+ZIDSg/lUCm12oO5RPTCAcSNC4dINLeqAcXiRCvF9YWqRTKVaVJhtzIgrwL2du3UkmGNXTw7PViKay2hZfft7sy87+fmtTS/Ocxfv/e8b9eRtdYKAAA0VarZGwAAABQyAABOoJABAHAAhQwAgAMoZAAAHEAhAwDgAAoZAAAHUMgAADiAQgYAwAGZp/1yanFcC6t3Yw/du/OQBnYdI4+... | [
"12x+4",
"8x+4",
"12x+8",
"20x"
] | null | 2 |
math | grade-3 | is-it-a-polygon | false | true | Is this a polygon? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD6CAYAAACbKDARAAAQ9UlEQVR4nO3d24+c9X3H8e+MdxZD7EJNgIYzmIMpGOJKTZxUKjdEkSA3sYsKiagiSuU2bQINOEEitEFAQmSgJI2q0CLaCoWgRtDewA0oKm2UOoJ6cRaCORhzsiMbMAdvsD2npxfD1oMx693ZZ+Y5vV5/gP2zrz7zzO+Zdy1JkiQAAIBU1LM+AAAAlImBDQAAKTKwAQAgRQY2AACkyMAGAIAUGdgAAJAiAxsAAFJkYAMAQIoM7Jz42ZvdeLud9SkAAJgvAzsHfjWVxEX... | [
"no",
"yes"
] | null | 0 |
math | grade-1 | flip-turn-and-slide | false | true | What has been done to this letter? | "iVBORw0KGgoAAAANSUhEUgAAAPoAAABkCAYAAACvgC0OAAAOlElEQVR4nO3dfXAU5R0H8O/eXXIJCVzCSxIFLiYQgeMlSCWIAjmlTMo4pQKiqA0TKlr+ABkcsAVqJ860JRastGqLIAUaHGVQUWp1UhoRAqJB4TAkIUFCcryYHJDkgFze7vbpHxEE8ra7t293+/vMOCOw+e0zuf3e7j773O+4zMxM5nQ6IYf9+/eDMQaqJ73evn37ZKmlNafTqevfs9HqWZxOJ3Jzc2Up+NJLL4ExRvWCqBcu6LjSVz2TLJUIIbpGQSfEACjohBgABZ0... | [
"slide",
"flip",
"turn"
] | null | 1 |
math | grade-3 | am-or-pm | false | true | After school, Luna is jumping rope. The clock on the wall shows: What time is it? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABQrUlEQVR4nO3deVjTZ7o//jdrAggJyiKiJuCCYAu4L60stWpbq+J0mXPazoBnup35tlOcmc75njOLeGbmzG+mc0ZsO+d0pu3XdJtO27FirV20asSlxVoMLiAqEBRFBCQBhYT19weSsmR5spEA79d1cTUkz+eTu0gu7jy5P/ft09PT0wMiIiIiInIJX08HQEREREQ0mjDBJiIiIiJyISbYREREREQuxASbiIiIiMiFmGATEREREbmQv6cDIM/raO9Ch7ET7cZOtBu70G7... | [
"4:30 A.M.",
"4:30 P.M."
] | null | 1 |
math | grade-1 | compare-money-amounts | true | false |
Which is more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAlYAAACYCAYAAAAm2KfyAABZjklEQVR4nO3dd3Tc533n+/evTp/BAIPeCKIQYO+dVO/NttyixM4mbslurpPrZE+S6z1JdpPN2ZObjbO+m9XGsRPbWXfHsi3LlkRJlCiKYhF7AwESANE7MP3Xf/ePISZWsslKNmjJ9vM6h4cgCZLzDIZnPny+3+f7SL7v+5MWXC1A1gXHRxAEQRAEQXgDVAliCnSGoVYHadL0/eOZt/phCYIgCIIg/HTbEQe1v1D6Qb0OqyKl1CUIgiAIgiD8n2VduJKHCQv6CiB... | 1 |
math | grade-2 | fractions-of-a-group | false | true | What fraction of the shapes are squares? | "iVBORw0KGgoAAAANSUhEUgAAATEAAADeCAYAAABVADeLAAANCklEQVR4nO3dz05UyxbH8cUFOUgCRI5xYBRHKgxuxzHnTXwOZzozvoZP4SOYODcmEGaGxIF6Lv8R2dB9B50NNhGp7l1Va62q72fk5NjFStXv1NafvacGg8FAAMCp/2gvAAC6IMQAuEaIAXCNEAPgGiEGwDVCDIBrhBgA12a6/MdvX3+Tr9tNrLUktfJkVp6/uKu9DPwB+ykMcxrV6SZ2ctSPtY7kdr+fay8BN2A/hWFOozrdxHrr8/L+3YEs3pmT+w8XYq0pqi/bB7K... | [
"1/10",
"4/10",
"1/4",
"4/12"
] | null | 1 |
math | grade-5 | mean-find-the-missing-number | false | true | Jeanette has the following data: If the mean is 21, which number could q be? | "iVBORw0KGgoAAAANSUhEUgAAAVoAAAAkCAYAAADIDvJzAAAIFElEQVR4nO3cW1Ab1x3H8a+EhBASAszFYHGzMWCMsY0THE/c2KTNpDNpx814miZN2qR96NSdPnTcaR86nfTBvUzvaZrpLdM8tA8dJ3E67iRtXTtp7TipDY4xxiHYXAzIXAXCBiF0Q9o+KEAUbC6pVrvG/88buyvOT0fn/LXaPZJBURQFgBlQAkAUiG0RQgixUgbACIY0wPT+JkVRFCUABDUMJoQQq5ElVnCNzCBFVggh1BAEZsCoSJEVQgjVKEEwEtE6hhBCrGIRMMq... | [
"29",
"20"
] | null | 0 |
math | grade-3 | is-it-a-polygon | false | true | Is this a polygon? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADuCAYAAAADb3CcAAAZ9ElEQVR4nO3dT2hUebrG8afOOaXVEGMFEjADiUbQSwsa7gx3FnNRV7M0bu7MSrOZdtdm086us4q7aTfGXdubpHd3NsbdpbmQCLPoxUDZYHNbmEQLphoqUOVY0KV1/tzFqTomJtGq5FT9zqnz/cAgXYp5Z9qBxzfv731zQRAEAgAAABALy3QBAAAAwDAhYAMAAAAxImADAAAAMSJgAwAAADEiYAMAAAAxImADAAAAMSJgAwAAADEiYAMAAAAxckwXgD5y6/IbTxX88kJ... | [
"no",
"yes"
] | null | 0 |
math | grade-1 | open-and-closed-shapes | false | true | Is this shape open or closed? | "iVBORw0KGgoAAAANSUhEUgAAAQkAAABkCAYAAACVdcVUAAABk0lEQVR4nO3WwUlDURRF0USSagSFNCCYDtKSc0tJBTqwhAysxsGzAjf8wX8/yFoN3DvanP0YY+wA/vCw9QPAfRMJIIkEkA4zjhzPlxlnVvfy/Lj7eH/b+g2YypJY4Ov2vfULMN2UJfHzeZ1xZlX/ZQ3BUpYEkEQCSCIBJJEAkkgASSSAJBJAEgkgiQSQRAJIIgEkkQCSSABJJIAkEkASCSCJBJBEAkgiASSRAJJIAEkkgCQSQBIJIIkEkEQCSCIBJJEAkkgASSSAJBJ... | [
"open",
"closed"
] | null | 0 |
science | grade-4 | identify-minerals-using-properties | true | false | Select the one substance that is not a mineral. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANcAAAEYCAYAAADPtGNgAAEAAElEQVR4nOz9aZAl2ZXfif2u7+5vX2Lfct9r34EC0GgQ7IXDRpPd1JCScTNSlGkWmWnMZCbpk0xm0ifJ5sPIZEPN2IyJHLHZnCa72WADja2qUAtqr8rMyj0zIjL2iLevvvu9+vAiqxLoAopkoRrV6Pybpb3I98Jf+PN3/n7OPfec/xFv95U6nYOCzgM8wAP8R2CYwc0x7MVQMeD58uR57QGxHuABPh0KOpzOTX4eZR89rz0g1gM8wKfHPR4l6qPnjI/7RaU+7tl... | 1 |
math | kindergarten | ordinal-numbers-up-to-fifth | false | true | The first picture is a tractor. Which picture is third? first | "iVBORw0KGgoAAAANSUhEUgAAAaUAAABdCAYAAAAFZHluAAAjNUlEQVR4nO2deVyU1f7HP2cWmWGQQTRUKHc0SwVNLEtQU0vvvaSVqdktNW/aTcVcui3em5Jbi5qpueWW/W65lBtdTXOBtK5dMHApVKAQE8wSRQZmhmE4vz/ObA+zPTPMwOCc9+tVDs9znvOcOa/5Pt/nnO9GKKUUHA6Hw+EEAJKGHgCHw+FwOGa4UuJwOBxOwOA3pXTTQNH+4C30PFqOmwa+Q8jhcDgc93illPaUGJB6XudS2aT/UY3CyhrklBkx4VSl1wPkcDgcTvD... | [
"sun",
"barn",
"tractor"
] | null | 1 |
math | grade-8 | classify-quadrilaterals | false | true | What name best describes this shape? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADpCAYAAAAeakAkAAAe70lEQVR4nO3da3Bc9Z3m8efcJPk2Fr5w8U0StowdbpY3YBISbC9Qu1PA2J5hqewOCzEDbDDBF5iYzGaIZTLLYE/AwgRIwaTGIZ6pKSYpRIB9EZLCgWGC4wQLA/FFji3fFie+IINv6tN9zr74W1K3WpalVkun+/T3U0Vh2VL3z1W8eDj1699jhWEYCgAAAEBe2FEPAAAAAMQJARsAAADIIwI2AAAAkEcEbAAAACCPCNgAAABAHhGwAQAAgDwiYAMAAAB5RMAGAAAA8qi... | [
"rectangle",
"rhombus",
"trapezoid",
"square"
] | null | 0 |
math | grade-8 | identify-alternate-interior-and-alternate-exterior-angles | false | true | \line{CE} and \line{FH} are parallel lines. Which angles are alternate interior angles? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADSCAYAAABw17dKAAAfV0lEQVR4nO3df2zV1eH/8de9V0t7Wb11lxTHLJ82/Fi9gC0FtKLQ2zEd9cfoncMt7SY1oC6upnVZNHExFPcz/rPbSRMTR7gw6Vxw9pqpYLKmLW7Xi7u3XGyouPTHtTAYV6C9MItAWr5/EPod8pu+23fvvc9H8v6j992e88Jyw8uT877HcubMmTMCAAAAYAir2QEAAACAZELBBgAAAAxEwQYAAAAMRMEGAAAADJRQBdvr9WrTpk1jMnZPT48sFsvIZbVaNXXqVD3yyCO... | [
"\\angle{FGD} and \\angle{HGI}",
"\\angle{FGD} and \\angle{HGD}",
"\\angle{FGD} and \\angle{CDG}",
"\\angle{FGD} and \\angle{EDG}"
] | null | 3 |
math | grade-4 | compare-fractions-with-like-numerators-or-denominators-using-models | false | true | Which fraction is less? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC5CAYAAAAS5EjTAAA5PklEQVR4nO3df1iTd5ov/jeiXUGvBqbdAb1qA0Xrbo+S6NnZ+WpRYCz2pyvQ02o7IrDiFOzMNFTYiluPMD0rzkgl9pxWnVIN1u2UehZw1K7VtgaItLueOQTSOd9ph9REOwX2tPVJLwTHojl/xOcxIEogz48E3q/r6lUlyfN8IHev3nxyf+47wuv1ekFERERERLKYpPUCiIiIiIjGEybYREREREQyYoJNRERERCQjJthERERERDJigj2M1atXIyIiAhEREXC73Vovh8I... | [
"4/5",
"4/12"
] | null | 1 |
science | grade-2 | classify-rocks-and-minerals-by-color-and-shape | true | false | Select the yellow mineral. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAABwQUlEQVR4nO39Z5dkWXaeCT5HXWXCZUSkqEokCgU2m2STg2GvYf+C+TZ/etbMBzZFNzlcBIkCSqSKDNemrjpqPpxzr7tHZkahgAYigmV7LV8W4W5ubuLsu9X7vlvEGCNHO9rRftTk+34CRzvah2xHBzna0d5hRwc52tHeYUcHOdrR3mFHBzna0d5hRwc52tHeYUcHOdrR3mFHBzna0d5hRwc52tHeYUcHOdrR3mFHBzna0d5hRwc52tHeYUcHOdrR3mFHBzna0d5... | 1 |
math | calculus | determine-one-sided-continuity-using-graphs | false | true | Is f(x) continuous from the left at x=1? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAAB2EElEQVR4nO3deXxU9b0//tdkZrKvJJCEYIIIBINJFAzIJiBUXEFwwa3WXrtgta3ee9vr7W29v1Yv7W1rba0L9V6vS6W18i2KoAFR1gYlECGQsBogK1kmmUxmP2fmnN8fxwmEdQbOJydDXs/HgweTycw775wzc+Y1n3zmc0yqqqogIiIiIiJdxBjdABERERHRpYQBm4iIiIhIRwzYREREREQ6YsAmoj42bNiAkSNH4tZbbwUA3H777XjvvffOeFtZlnHdddfh888/788... | [
"yes",
"no"
] | null | 1 |
math | grade-5 | three-dimensional-figures-viewed-from-different-perspectives | true | true | If you look at this object from the side, what will you see? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAElCAYAAADeN5VfAABCjElEQVR4nO3dfVjUdbo/8DcMj/IwIBaK5oC4O5yj8WBitqLA+gvXToGuZbUqYKuInlQGst9JU6CszpUrD6ubD2kC5pp2XIE6nhYvY1DaHtB10DwrJTm4iuIPZRCVBxnn98c430QFBvjOfAd8v/45xjzdc3md9s2n+3PfdgaDwQAiIiIiIhKFvdQFEBERERENJAzYREREREQiYsAmIiIiIhIRAzYRERERkYgYsAcgjUaD6OhoBAQEID8/X+pyiIiIiB4qdpwiMnDodDq... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA6AAAAElCAYAAAD6J4/zAABHsElEQVR4nO3dfVzUdb7//yeCXCgIipuKbQPihvu1FTHtYr0A1l947BTotlmtinRF1NkUZO13slQs2/aWCbp18iJLxDyWrYXW6ezizxiUtgt1Bc1dKcnBFKUv6Sgoiozz+4NmVlMQYZjPgI/77dZNZWY+85p1MZ+9Xp/X28tut9sFAAAAwCW8vLyMLgHwWF2MLgAAAAAAcG0ggAIAAAAA3IIACgAAAABwCwIoAAAAAMAtCKCdUElJieLj4xUREaHVq1cbXQ4AAAA... | 0 |
math | grade-8 | transversals-of-parallel-lines-name-angle-pairs | false | true | \line{HJ} and \line{KM} are parallel lines. Which angles are alternate exterior angles? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD2CAYAAADs6vBqAAAgEklEQVR4nO3de3BU9fnH8c8mJATBQKQaEgYMCCYqmMsGItdsilZFWoODI16mhOo/LVUiI1prkTiMt4q4gOhYoYYpajUqkXKxCk0CmECGzQVKuYi5IbaByobUSyDE/f1B2ZpfLlxyds/unvdrhhlyvhvOc56/Pn79nmdtHo/HIwtqamqSJA0YMMDUOoIV/QMAAOhcmNkFmCU/P1/5+flmlxG06B8AAEDnbFbdwU5ISJDNZlNtba3ZpQQl+gcAANA5S+5gFxYWqr6+XnV... | [
"\\angle{JIG} and \\angle{MLI}",
"\\angle{JIG} and \\angle{KLN}",
"\\angle{JIG} and \\angle{HIG}",
"\\angle{JIG} and \\angle{JIL}"
] | null | 1 |
math | grade-1 | equal-sides | true | false | Which shape has 6 equal sides? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAECElEQVR4nO3cz27cVACF8ePxZFQ1KZUiWuABUiReoE+SFauuWPFWRUIBJBBC7Fn2DUrYk0pNCEkmaqfjuSzMlSZV/yQZ33Pt6++3mpElz1l8ssZeuAohhKOF9NeldN5IyyBgY9NKuldLe3elz2ZSdfQ6hGdnuWehZI8/kaaHl+2XL2bSl9tthcCmzhvp+Vz6eyH9eSlNzpbtASJDl+7VbVOSdNFIk2btANCl2NSbIE3yTsFYEBosCA0WhAYLQoMFocGC0GBBaLA... | 2 |
math | pre-k | what-comes-next | true | true | What shape comes next? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAD1CAYAAAAlI4EUAAAXr0lEQVR4nO3dXYyd9X0n8N95mRePxx7jgl8wG6QYly0KeFs1IC1vN6vSTaRWale06UXCJlpudrmJmq1WTXa1S9BuEVJv2koblGxDJSLaTS+I1sXV3mDIG6zaGkiBmCEhZQYPdsYe5vW878UwxgaPPc85M89z5n8+H4kbPM95/v7q53O+85z/eU6p0+l0AgAASEK56AUAAACbR8EHAICEKPgAAJAQBR8AABKi4AMAQEIUfAAASIiCDwAACVHwAQAgIQo+AAAkRMEHAIC... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAz4AAAD1CAYAAACRDCAyAAAduUlEQVR4nO3dXWwc93nv8d/MvpHL5YsYWRJFnRiwxPrYsKSTIJGB2pJvDirHARqgPUdpfJGoNo4veuqbID5FYeccnGMLbQ0DvWgSoDHsxi5gQUnTCwdlpKI3ppw4looksuTKDkXHSrh8EZklqX3jvszMuVgtrRcuydmXmd3Z7wfIRcSdmUePH6zmx/nPjOE4jiMAAAAAgWAYht8ltCXT7wIAAAAAoNUIPgAAAAACj+ADAAAAIPAIPgAAAAACj+ADAAAAIPAIPgA... | 0 |
math | grade-5 | parallel-perpendicular-and-intersecting-lines | false | true | Are these lines parallel? | "iVBORw0KGgoAAAANSUhEUgAAAFsAAAB3CAYAAABsWDzUAAAIu0lEQVR4nO2df2xV5R3GP7eXNNfecrmhbKwXN2zcLasgMsCLBHWkTIZgaUGyH46FbA3pKhYENowZ/jFdRoZTh7XrwFRjtxpcEFrrqOtmA/thpQKpOJjSZJVNS2ZCuTDu1hDL2R/lXE9/3Pb+OOe879fy/EFIc5L75Mm557zP836f93oMwzC4BleQpZrAeIIosd//6IxqChlBlNgvtDXwQttvVNNIG6LEBiivruTRl36qmkZaECW2+Rh5dO8OkXe4KLE/F5wa/395daU... | [
"yes",
"no"
] | null | 0 |
math | grade-8 | mean-median-mode-and-range-find-the-missing-number | false | true | Garrett has the following data: If the median is 16, which number could r be? | "iVBORw0KGgoAAAANSUhEUgAAATsAAAAkCAYAAAD2K509AAAHvUlEQVR4nO3ca1BU5xnA8f+e3UXYRSAIoqKCSBAviXbiBQVvDdaMRmsy6aTphyYlaWzTtEZnkrbJZKaNHdOZTpuJzejYJv2QmprEGyrTRqP1AioaNYgRUJGbVFggykXYhb2cfkCZ2RJHrOeyss9vhg+8h93nmWfP+5xz3sMei6qqKoA3EKDT5yegqqgIIcT9ywIoFgtOmxW7ovSOqaqqdvn8uP1+c7MTQggdRFmtOGxWFG9AlUYnhBi03H4/3oCK4vb7zM5FCCF05fb... | [
"17",
"12"
] | null | 0 |
math | grade-7 | bases-of-three-dimensional-figures | false | true | Look at this figure: What is the shape of its bases? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADvCAYAAADIM6M5AAAfaklEQVR4nO3deVRV9f7/8ddhHsRwApVQo/SrlXbVwAQz76Xb9Vpey7o3vWV9K7t9czbFcMgpyVlzrIwGm2zCTFPKLClTHNIEDVNRcEYURJSZw/n94YVfiua0z9lweD7Wcgmbz9mfF2vxx2vttd97W2w2m00AAAAADOFidgAAAADAmbiVf7Fq1Spt2rRJNpuNf074r7Cw8LJ/DOPHj9e4cePs+gcHAADg7Czlt4h4eXmpqKjI7DwwGXcMAQAAXJ+Kgm2xWM77wY31b9T... | [
"triangle",
"rectangle",
"square",
"circle"
] | null | 0 |
math | grade-8 | identify-linear-and-nonlinear-functions-graphs-and-equations | false | true | The graph shows a function. Is the function linear or nonlinear? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABk40lEQVR4nO3df3RU933n/9doJI1+a4QEEhaWMOaHDZbA2NgGg42LY1OTuIY0i5ttUmfTdp1tmqSnp3t6ero526zXJ+e0aU/SJJumm42d3fSb1ie2U5vIBNsYsAhgZBBI2FjGoB8I/RhJM5rfd37c7x9YCjIIJHM/Gg08H//AzNV96a37mbnzvp+5c8dl27YtAAAAAI7IyXQBAAAAwLWEBhsAAABwEA02AAAA4CAabADj7rvvPr344ovjt//93/9dt956q9LpdOaKAgA... | [
"linear",
"nonlinear"
] | null | 0 |
math | grade-6 | model-and-solve-equations-using-algebra-tiles | true | false | Which set of algebra tiles represents the equation x+7=15? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAREAAAB6CAYAAACY0GejAAAH/0lEQVR4nO3db2xVdwHG8eeee9tCL7QlltJ2TGKrY2A0A7LAMn2hhMj8gyadZntpYrK9UF81miX6emyvSMxSNdEQYpy6sSXqkkpj0LFZOqVsc4AMyyxD+u9uhdvelv659/ji7nabwLinv/M7PefX7ych0NvePpd7whN6T3uelO/7/ui89O8ZaaooLfoCgFvKpKT1aelT9dKmWik1Ouf7r+RX+mEBSKLdDVLmwkz5jbZaaWu23DAAcCtTRel8QRqZl96ckbz8Yvk... | 3 |
math | grade-8 | make-predictions-with-scatter-plots | false | true | Based on the scatter plot below, which is a better prediction for x when y = 79? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFhCAYAAABK/t0lAAAiy0lEQVR4nO3dfXCU1f338U+eYJPwsKQ2wkIxEiRReUhmyQBKIclPqEpioA+KGg0YGYLFEVrtTWdsjXXml6oUCIMGC5bQjr1Rq+FpxhpGSLXTRGHvLgJtFgxGhA1SJEEg2eDC3n902DaQBENOdjeb9+svruus1/d7HDAfD2fPFeHz+XwCAAAAYERksBsAAAAAwgkBGwAAADCIgA0AAAAYRMAGAAAADCJgAwAAAAYRsAEAAACDCNgAAACAQSEVsD0ejzweT7DbAAAAAK5... | [
"56",
"2"
] | null | 0 |
math | grade-2 | correct-amount-of-change | false | true | You pay 12¢ to buy a bouncy ball costing 8¢. You receive the following change:Is this the correct amount of change? | "iVBORw0KGgoAAAANSUhEUgAAAjQAAAA/CAYAAAD301LpAAA4IElEQVR4nO3dd5Rc2X3Y+e99qV7l0DnnbjRyjoPJ5AzJ4QxF0ZZE0dauZJmWg2zpWPY67More3327K7XtuS1vbQkk6Il0hTzzHA4OQ8GwCDHRmqgc6zqyi/f/aPAkbwekZghKBLC++APNIBzut7vdh3cX93fvb8rpJSSUCgUCoVCoTuY8uN+gFAoFAqFQqEfVpjQhEKhUCgUuuOFCU0oFAqFQqE7XpjQhEKhUCgUuuNpfx4v4lp1qtUqtm1Rr1bxHJtafhHHl2iaRiS... | [
"no",
"yes"
] | null | 0 |
math | grade-2 | skip-counting-stories | false | true | Each shopping bag has 2 CDs. How many CDs are in 5 shopping bags? | "iVBORw0KGgoAAAANSUhEUgAAAXIAAADDCAYAAACfxZptAAAnwElEQVR4nO3dd3yN1x/A8U9ys2UgiUglEWJExGqJIISqotSmqtSmdtBl79VSVFGUGtXWqrZ2bGI3UluIRIbGyiR73N8f4ZJfjJKbPLm33/fr5fW6eca53zxOvvc855z7HIPozMtqhBC5jFzUGYD5wzYpHIkQL2eodABCCCHyp0gn8oQMA7z2laLZYTsSMgyUDkeIAiH1XOSXYol8120z5gVbvrDiHo8xJTJZxcUEY0YGFS+84ITQEqnnojAoksgnXrSmz+kSzA22YkO... | [
"6",
"14",
"10",
"12"
] | null | 2 |
math | grade-1 | purchases-do-you-have-enough-money | false | true |
A red button costs 17 cents. Do you have enough money to buy it? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAABuCAYAAABSgmeUAAB/LElEQVR4nOydd3gc1dX/P7O9r1Za9d4syZa7cS+YYjAdQjOEHghphBAIJvACSQjJm7wkhBSSACGhJqFXA8aACxj3bstNVu99e5m5vz/Wu1hINpKxjfFvPs+zj63Z2Zl7787eOffM+Z4jCSEEKioqKioqKioqKionBJqvugEqKioqKioqKioqKkcO1cBXUVFRUVFRUVFROYE44gZ+T0RQ+G4f4z/w0BNRo39UVFRUVFRUVFRUjiXDMvBfbY7ws6rgIQ33jzqi1PgVNvb... | [
"no",
"yes"
] | null | 1 |
math | grade-8 | identify-similar-triangles | false | true | Are these shapes similar? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEBCAYAAABCCtJ/AABRz0lEQVR4nO3dd3iN5x/H8Xf2MCKx1YhNiBK7NVurQhArghqlS5fSVtWPoqp0KFW02orae0ZFKaqtUjsSm6jUiIjI3vn9kTqVGjVO8mR8XteVS93nOc/zOSonX8+57+9tkZ6eno6IiIiIiJiFpdEBRERERETyEhXYIiIiIiJmpAJbRERERMSMVGCLSI7xxRdf0K5du0xjQ4YMoX379pnGBg4cyNtvv52d0URERO6btdEBRERuKlWqFFevXjX9Pjw8nF9//RUHBwfTWFh... | [
"yes",
"no"
] | null | 0 |
math | kindergarten | represent-numbers-up-to-20 | true | false |
Which picture shows 8 triangles? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAZYAAABcCAYAAABN/JPwAAAE50lEQVR4nO3awW5UdRjG4W+mTGlLYQARowt2yoo1CffgTXAVbnTjXbjwIvQarAkbSbuxrStIFARs2tLT0jI5LibVGoSZtv/pOd/J82ygKYHzIyRvvsP06rqunx1G/FZF7I4i3tYBAFO71Iu4Ohfx+VLEJ/MRvWdv6vrRTtOPBUAX3L8WcWmzGn/x6XzE3Svj1QGAae2OItb3Iv44jNioIvo7b8ffMCoAnMXVufGGRES8HkX0Rye+AQBncbwhR3VEv9lHAaBrDAs... | 1 |
math | grade-6 | which-is-the-better-coupon | true | false | The original price of a dry erase board is $45. Which coupon is a better deal? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAASYAAAC8CAYAAADVTgNLAAAxiklEQVR4nO2dd3gc1dm379le1CVLLnK33HDDGCzA2NgGbDDFodcXCF9I6LwE3kBCKKkkEEISIAlJCEkooVfbFINtbMAG415xx8a4yOrS9p3vj6Oyq11JuzOz2pV87uvaS7uzc86cHc385pznPOd5FFVV1QN+2N4IdSEIqkgkEkmXYlEg2wxlLiixgXLAp6qf16a7WRKJRCKYnAOWbY3iQx8bjHAL1ZJIJJKupC4EWxvgWz981Qim2qD4QoqSRCJJF9lmoUEA9SE... | 0 |
math | grade-8 | compare-linear-functions-graphs-and-equations | false | true | Function A and Function B are linear functions. Which statement is true? | "iVBORw0KGgoAAAANSUhEUgAAAjcAAAGlCAYAAAAGbtd7AABOyElEQVR4nO3de3xT9f0/8FeuTZq0tBR6gd5xRbRAmWCLCh23Ad6+3gB18zpl331lgvPuNjYv0+lg3i8/ddOpbDpEQfwq7rsiEy+looJFaRHSQktpeqFpm57cc35/sGQE2ibtSXuS09fz8fCBTU/f553wzodXzjlJVaIoiiAiIiJSCLXcDRARERFFE8MNERERKQrDDRERESkKww0Nq6eeegoqlarP/y666CK5WwyRn58PlUqFjRs3Dvu+58yZE3xc3nnnnWHfPxFFbs+... | [
"The y-value of Function A when x=4 is less than the y-value of Function B when x=4.",
"The y-value of Function A when x=4 is greater than the y-value of Function B when x=4."
] | null | 0 |
math | grade-2 | interpret-bar-graphs-ii | false | true | Dalton sorted through a kitchen drawer and found some pens, green crayons, and red blocks. He made a bar graph of the items he found: Did he find more pens or green crayons? | "iVBORw0KGgoAAAANSUhEUgAAAgoAAAFfCAYAAAAvauSMAABfEklEQVR4nO3dd3gU1f7H8ffMlmw2lSSEUEJCr4YSmjRpVrhiV9R7QUVRUBG7XgsqV0FFBfXaUEHFn/WCgg2QKk0IvaggkJAQIAmkb7bMzO+PDSEoAULJbJLv63nysDs7O/PdNWY/e86ZcxTDMAyEEEIIIY5DNbsAIYQQQgQuCQpCCCGEqJAEBSGEEEJUSIKCEEIIISokQUEIIYQQFZKgIIQQQogKSVAQQgghRIUkKAghhBCiQhIUhBBCCFEhCQpCCCGEqJAEBSGEEEJ... | [
" pens",
" green crayons"
] | null | 1 |
math | pre-k | represent-numbers-with-shapes-up-to-5 | true | false | Which group has 4 triangles? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAEcCAYAAAAV9AvgAAAG1ElEQVR4nO3dvW8cBRrH8ccviXS86Zq7Ey06oLuW5nTSNVdfcd39ESCQoAodLx1GSFDYDdDEKZMGlKQBFGkJkUjhlcBXWE5BVpYsKwu2bGczV6xikUtydsLub7M7n0/l8dijp/pq1ut5dq5pmubmQdV/dqv6g6rbTQGMxOJc1bMLVS8+VfWn01VzN/eb5ttbkx4LmHWvPFe1uL47PHj+dNXLTw9rBDAK/UHVD79U/XRQ9eNu1fyt28MTYgOM2rMLw7ZUVf08qJo... | 1 |
math | grade-4 | points-lines-line-segments-rays-and-angles | false | true | What is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACWCAYAAADkHv8wAAANLUlEQVR4nO3da4xc5XkH8GfWTgy1Z5agQElYAyblslsjpxC609pLIlJbVUxEpV0Uu6qqyGnqD02EpYCQGuEPS0hETaW1kqqFpF6rqmqirpWkDY5Yq0TBtjxbCNSQjmVDKpqMEwqIxGeLwJf16QezW+/F9l7mPr/fF2vPmXn1SPPlr9fv+Z9MmqZpAAAAZdFW6wEAAKCZCNgAAFBGAjYAAJSRgN0kHim+FB/51921HgMAoOUtrvUALEzv/h/G90ulOJ2eifC4KgBAzQn... | [
"a point",
"an angle",
"a line",
"a line segment"
] | null | 1 |
math | precalculus | determine-one-sided-continuity-using-graphs | false | true | Is f(x) continuous from the left at x= – 1? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAAB0DklEQVR4nO3deXgU950n/nffrVtCAkkISxgDsgU6EMaYQzYEjDlsx+A42Hly2OPJrLM5nOzu7GYy3jw7Gdvr2Zlkxh7bk82uHTu7mXXMLzYeAwKDEUeEASMkgcQlBLqAltRSt9RnHV31+0OWQJxqqC+tlt6v5/GTUOr66KOq7up3f/tbVSZd13UQEREREZEhzLFugIiIiIhoLGHAJiIiIiIyEAM2EREREZGBGLCJaJidO3di6tSpWLNmDQDg0UcfxUcffXTVxyqKgvv... | [
"no",
"yes"
] | null | 0 |
math | grade-5 | scalene-isosceles-and-equilateral-triangles | false | true | What kind of triangle is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC/CAYAAADEvavOAAAmXUlEQVR4nO3deXyU5cHu8V/2BSK8EAkkAxlZAhgVcMmrJ4CyyBIWHUMwIUqsqGBZZC8uFBUUCWtYBUHASktViMUS2x4DhxaPmvb1zMHmjZ8GU8RJTTSkkcEhCcPM+QOTIy0JSZjMk2Su7z98IPPc9/XoPxc399y3n9vtdiMiIiIiIh7hb3QAEREREZG2RAXbQ7766iv69+/P0qVLjY4iIiIiIgZSwfaQ9evX8/nnn7NixQreeusto+OIiIiIiEH8tAf72p07d46YmBj... | [
"isosceles but not equilateral",
"equilateral",
"scalene"
] | null | 1 |
math | pre-k | spheres | true | false | Which shape is a sphere? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAUrUlEQVR4nO2d2XMc1X7Hv6f3nkWSLcsbxmKRMbZlbNlwCakKSdUND1TlVkilKuSFpyQv+R/ymrykKlV5u6m6D6mkErhsxmD7YhMgwA3YF2wwEGwTU8i5kWRp9ulZes/DmTOLNLK19Ewvcz5P8mjcczTznV+f7v6dTxPf9/0lC/ifOlB1AccHhxM5JAJkReBQCtijAGTJ9P0rlbCHxeFsnKfHAOn7Ov3HPgU4nKap5nCiRtUFbtaARQu4VQeEikN/wUPLiTJZkWY... | 1 |
math | algebra-2 | identify-the-direction-a-parabola-opens | false | true | The graph shows a parabola. In which direction does it open? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAHyCAYAAADRDLnIAABuk0lEQVR4nO3de3hU530v+u9cdZdGNyQhkLgZjLCEAYMtDAEHYlM7cQ2Ji9OdW3fT3aZJmvbJ6U6aJyfnNIe62Tt1stPtpN7dzY6dOHsnduM4CbbAOGCDJXOTQSAZMAjQFV1GGo3mvmbNWueP0QgEEoyk9501o/l+nsfPSKM13/l5mFn6rVfvepdJ13UdREREREQkhNnoAoiIiIiI5hI22EREREREArHBJiIiIiISiA02UZr40Ic+hFdffXX8+9/+9rdYuXIlNE0zrig... | [
"up",
"right",
"down",
"left"
] | null | 2 |
math | grade-8 | apply-addition-and-subtraction-rules | false | true | The number line shows two unknown numbers, r and s. Is s–r positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAIKklEQVR4nO3da0xUdx7G8ecAc+kAi8hNqohZXW2MFBVExtqiZvti69INXmLVxCVrtCsxMWm2Mdlk3xmzZhM3m2ii1Rcbk7LSbXGzbsxumugCSSsXKxOo1GoV8dIqQmXBYZgBZl/gTEottzJwZobv5xXnzLx4ksNJHv78zv8Yfr/fLyCClZeXyzAMbd++3ewomCZc85mHaw4gksSZHQCYrLt375odAdOMaz7zcM0BRJJxF2yfz6crV66otrZW6enprCIAYcbd361L98v... | [
"negative",
"positive"
] | null | 1 |
math | grade-3 | choose-the-appropriate-measuring-tool | true | false | Which tool would you use to find out the length of a pencil? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJYAAACnCAYAAADzJ6XqAAAiLUlEQVR4nO2deZwU1bn3v1W9zNbTPTP07AvDOggIgrgEEBOiIKIxonjjEnxViF4vmqv5iMtN7tWQqIlbFCTB7VXMIphXI26omBcEVDYTDLIMMA4Ms+89W29V5/5RPb3M9CBLd0831vfzgZ46tZxTVb96zqlT5zyPJIQQdW442A0dCngFOjonjFGCdAOMSoVcM0h1LiG2OQa7WDqnE+dZwXigW1vIN0NZmqY6HZ0TpUOB/V1Q64bybpAdXm2FLiqdUyHdoGkIoFM... | 1 |
math | grade-8 | identify-trends-with-scatter-plots | false | true | Does this scatter plot show a positive trend, a negative trend, or no trend? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFhCAYAAABK/t0lAAAkw0lEQVR4nO3df3DU1aH38U8AJWAkWygkAWk2Bkv0NsnSoEK8YzbadkhtNDiPlfvAo2ClSKe1KK3YzkXXq1hwrEZRFOqVqLTlmVIJpSP42JKlVBKsWzfBH7ElyUYFNviDBRKICOzzBzWXmGyM2bPf7+7m/Zpxxv0esueTUiefnD3f800Jh8NhAQAAADBiiN0BAAAAgGRCwQYAAAAMomADAAAABlGwAQAAAIMo2AAAAIBBFGwAAADAIAo2AAAAYJBlBbuzs1OdnZ1WTQc... | [
"no trend",
"positive trend",
"negative trend"
] | null | 0 |
math | pre-k | count-on-ten-frames-up-to-3 | false | true | How many stars are on the frame? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACQCAYAAAAyRxwtAAAHWUlEQVR4nO3dvW9UZxbA4XM9XybrmTHIiIJNAR1VkCJF6RAFqUhFtWy1f+N2Gwlpt4+UKtuAaRIJaVGkYFY748GeFGSWgL89584d3/d5OuPx+D3dj1fHd6pnr2bzACAe3uo2fQQAWmCj6QMAAECbCGwAAEgksAEAINGRhcMvb3SaOEdjvv/l4KOvzW/+kpj/4OwXAcAFucEGAIBEAhsAABIJbAAASCSwAQAgkcAGAIBEAhsAABIJbAAASLQWgT2fzps+QqNKnx8AoE3... | [
"2",
"1",
"3"
] | null | 0 |
math | algebra-1 | identify-direct-variation-and-inverse-variation | true | false | Which table shows inverse variation? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAdwAAAA/CAYAAABKBHltAAANkklEQVR4nO3dfVCVZd4H8O9BFtAURFAOK6grgqQ1wZrGi1SgvCSGL1hhjKJ0MiN9AkcRxlTQFXxaWCeVoGQdFyFQjmtjsUxMuikiswFnfTCFIwUFOKDxaiJHEM7+wXams4CyTzf3zYHvZ4Z/rnPf9/XVn3N+XJfXAVnCcistiIiIaFgZA0Bs+pdS5xiyRMVSxH7WJHUMGqLEl61ZLwPCehkW1suwGEkdgIiIaCxgwyUiIhIBGy4REZEI2HCJiIhEwIZLREQkAjZ... | 1 |
math | grade-1 | more-less-and-equally-likely | false | true | On which color is the spinner less likely to land? | "iVBORw0KGgoAAAANSUhEUgAAAcEAAABkCAYAAAD+HYsBAAARB0lEQVR4nO3de1iUdaIH8C9yG2aAeYdLoC53bygKzCBYGoqXWs3N82y1oKmlW0+1zz67ZnW0y1Nn2zZt262t1udpTx0zTYXNtjT3HE8GjNpJvMwAEtYqN/Eu4rzAwIAQnD9cXI0BGXgvM/D9/KPzzvD7feev7/N733fen1dXV1cXiIiIhqERagcgIiJSC0uQiIiGLZYgERENWz5qBxiI5uYWiA0iRJsImyiiQRQBAHpBgEEQIBgECHoBOp1W3aBEROTWvNz5xpi6ujp... | [
"white",
"blue",
"neither; white and blue are equally likely"
] | null | 0 |
math | grade-7 | identify-linear-and-nonlinear-functions | false | true | The graph shows a function. Is the function linear or nonlinear? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABlnElEQVR4nO39eXRc9Z3n/79q075akiUhIxljMMjYBoMhNjZLQ4BAwsQmGdP96xC60+km01mnT8/pb3/TOdNpmsn5dpOcpJNMkplMSDJ9fpnwDaGbRXZMMNixA8bCyFg2YIytxbaWkkql2m9V3fv9Q5aQvGDJvh+Xyno+zvGxarkvvXVv1a13fepT93ocx3EEAAAAwBXeXBcAAAAAXExosAEAAAAX0WADAAAALqLBBjDhlltu0dNPPz1x+d///d919dVXy7bt3BUFAEC... | [
"linear",
"nonlinear"
] | null | 0 |
math | pre-k | subtraction-sentences-up-to-5-which-model-matches | true | false |
Which picture shows 3 − 2 = 1? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAABKCAYAAACiqlhpAAALb0lEQVR4nO2dW2wc1RnHf2f24mvs2E7smJDEiRUSkpKSQGOHpmpFJRCpolAVaBHIitoHeOlTW6kPlVr6whNSpZaqoApFKREqhbaUChCIIkWN4hgSCMQJuTTExiG+O/Z613ubOX2YXa+drL2zu7M7xny/l9HMnnP2+/vzf+acMzNnldZaD8bhUgRCJiQ1giCUCL+CFT7YXA0tQVCDMa17prwOSxC+enTUgf9ixN5pDcKWGtudgiCUhpAJ58NwLQ4XImBMJe0PxHy... | 1 |
math | grade-3 | identify-parallelograms | false | true | Is this quadrilateral a parallelogram? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAAuCAYAAAASh24oAAAGyUlEQVR4nO3dfWxV9R3H8c85t7f3saAUZRKxBJ9YrLL4sOBwJltjJAiByYP0qv+Zze0Pl2iHlAlM0JVK4sayJdsS/zGhFUGJNOsGmya4sWxjqY8II3HWbZRtSMH23N7Hnt/+qJV7LlOqnPbcW96vP8/tTX7/nJ7P/f2+5/u1jDFGAAAAAHxhB70AAAAAYDIhYAMAAAA+ImADAAAAPiJgAwAAAD4iYAMAAAA+ImADAAAAPiJgAwAAAD6qCXoB4+EPRwv6+e+yiocthUN... | [
"yes",
"no"
] | null | 0 |
science | grade-3 | identify-materials-in-objects | false | true | Which material is this plate made of? | "iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAACT2UlEQVR4nOydd5xdZbX+v7ueXudMb0kmk94TkhB6r4rKFRQsYMOreLH3fq8XBVTUa0Es2PVKkSIgnVDTSO9lej8zp5fdf3/skyE9wQb+7jwfQjJn9tnn3fu8a7/rXetZz4IJTGACE5jABCYwgQlMYAITmMAEJjCBCUxgAhOYwAQmMIEJTGACE5jABCYwgQlMYAITmMAEJjCBCUxgAhOYwAQmMIEJTGACE5jABCYwgQlMYAITmMAEJjCBCUxgAhOYwAQmMIEJTGACE5j... | [
"ceramic",
"cotton"
] | null | 0 |
science | grade-4 | animal-adaptations-beaks-mouths-and-necks | true | true | Great blue herons live near wetlands and lakes. They eat mostly fish.
The great blue heron's neck helps it grab fish while keeping the rest of its body still. If the heron had to move its body, it might scare the fish away. Which animal's neck is also adapted for hunting prey while keeping the rest of its body still? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEKCAYAAABnkCFsAAEAAElEQVR4nOydd5gcxdX1f1XVEzbnVVzlnACRMxImB4MtsMnJxjaO2EQH/GKcRbDBmGgbMMZgeMEGDEYEmywJJCGEECjnHDbvzkxX1fdHdffMKqAFC/TaX5/nWWl3pqe7urtm5txb554rrLXW932MMcSIESNGjBgxYsSIEeM/E1JKPM9D5HI5G5P7GDFixIgRI0aMGDH+8yGlRMbkPkaMGDFixIgRI0aM/w4YY5C7exAxYsSIESNGjBgxYsTYdYgJfowYMWLEiBEjRow... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA88AAAEKCAYAAAAsMWftAAEAAElEQVR4nOy9d5xtVX3+/15r7Xb69Jnb4Ra4lyoIFlAUlChRiRowIjY0MdHYv9hSTBRbgi0aKyZRg0aDwYLRiECCFRBEer29zZ1+6j67rLV+f+xzzsxQ5KIoib/zvF7zmjnn7LP32mutvWc/6/N8no+w1to0TTHG0EcfffTRRx999NFHH33834SUEsdxEEI82k3po4/fScg+ce6jjz766KOPPvroo4//+zDGkKbpo92MPvr4nYXsE+c++uijjz766KOPPvr43UD... | 0 |
math | grade-1 | estimate-to-the-nearest-ten | false | true | How many marbles are there? Estimate. | "iVBORw0KGgoAAAANSUhEUgAAAiYAAAFvCAYAAAB+cQB/AAEAAElEQVR4nOz9e3hdV3kuir9jzLkukiVZkhXf7cR2QnyDZzsNEIi5FEhyCCE0IWwIe5dCUvr79UI3LSl0c3YJodBNKX1O9smBw4YmLfB7moQ6QNLSXYwhNFcnZBPIxfEliZ1Ykh1bN0ta9znG9/vjG7e5JNmSJVmSs76HML0kWxprrjHH+Mb7ve/7CSIiNKIRjWhEIxrRiEbMg4jnegCNaEQjGtGI2Y/hosLe7hKEEGjJS2xa0zTXQ2pEI8aNRmLSiEY0ohFnYTy+fxS... | [
"about 70",
"about 20"
] | null | 0 |
math | grade-1 | compare-clocks | false | true | The clocks show when some friends ate breakfast Sunday morning: Who ate breakfast later? | "iVBORw0KGgoAAAANSUhEUgAAApgAAACZCAYAAACL8kpFAAAc20lEQVR4nO3deXxTdb7/8XeaJmlLSzegZQRKERRQFtE7LsAVARWsoqIwM+CoyKAo4qDUgRlxAMWf+gPGcRwUH8MoOui944IrVylaZEQugnZYVBAoUAShlKWFNm26JPePStLQLctJ0+X1fDx42Cbne/JtzDvfT77fc05MLpfLJTRL964s0+v/rjRsf52OfaUoR6Eh+7JFRyt74XC1j7EYsj+gpSCXANC4iHB3AHXLO+kydBAzmqO0VMuz8sLdDaBJkUsA8A0FZjN1oNA... | [
"Pedro",
"Dustin"
] | null | 0 |
math | grade-1 | interpret-bar-graphs-ii | false | true | Shane asked twelve friends to vote for their favorite bug. He made a bar graph of the votes: Which bug did more people vote for, spiders or grasshoppers? | "iVBORw0KGgoAAAANSUhEUgAAAgcAAAFfCAYAAADalG88AABcxElEQVR4nO3dd3xT9f7H8Vdmk7Rp0kEnlAIto2wqIEuGLOEKAiqKVxERRJy4rnq5elW8OC+Ie1wFVPQiCAgoW4aypKzKXm0pbelOV9omTX5/9Gckl9mZQD/Px8PHoyfn5JxPjqXnne/5fr9H4XQ6nQghhBBC/D+lpwsQQgghhHeRcCCEEEIINxIOhBBCCOFGwoEQQggh3Eg4EEIIIYQbCQdCCCGEcCPhQAghhBBuJBwIIYQQwo2EAyGEEEK4kXAghBBCCDcSDoQQQgj... | [
" grasshoppers",
" spiders"
] | null | 0 |
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