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 | angles-of-90-180-270-and-360-degrees | false | true | What is the measurement of this angle? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAAkCAYAAACzHE1OAAAHFklEQVR4nO3dbUyV5x3H8d85MDIVEGwnTzqPA5GsVqBK2FofAO186Aa6onYttDK7xDTtZC+61GSkzeymZlks0mXJqmK30VWLgqmjulY8DrouUj3QdS0IKtrKQ531cDigBeHsxQEKRCzVw9PN95Pwhuu67/t/n1e/XLnu/2VyuVwuAQAAAPAI80gXAAAAABgJARsAAADwIO/+/zhVUarK6tO6crVRFf99T83Ndn1af15t7V+o40a7bMfbR6JOAAAAYEzwlqRPGy4oJS1... | [
"360°",
"180°",
"90°",
"270°"
] | null | 0 |
science | grade-4 | compare-strengths-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. | "iVBORw0KGgoAAAANSUhEUgAAAcgAAABSCAYAAADQK0R7AAALvUlEQVR4nO3df0yU9x0H8PfDIRxS+WGhFQqWlqOjBbciWmvBWisppWPS9cdqF5KGWYKJ1i2ZWc1GKok/OjoXdU1ao44UZyWbSTuhwT82J6ZqW+HSakHLD/HAeiirwCn07no/nv1hIGU8lfv13Pee4/1KTOR+fJ/Po583n7vnfjySLMsyiIiIaJII0QUQERGFIg7IIPjiiy8gSdKkP1FRUcjOzsamTZswOjrq1XovvPACioqKfKrlyy+/RHZ2NhISEny6P5HWhUoez58... | [
"The magnetic force is stronger in Pair 1.",
"The magnetic force is stronger in Pair 2.",
"The strength of the magnetic force is the same in both pairs."
] | null | 2 |
math | kindergarten | count-scattered-shapes-up-to-10 | false | true | How many stars are there? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAFbCAYAAACgQvo+AAA350lEQVR4nO3d2XOc95Xm+SdXZALIFRt3UZRgwKRIUSLFfadIkRQpUqRkWSpbi0WX1fLNzN3M/zAXczERMzcz0RETURVdPdV2VZerOtxRpZqSPW7XdFXbQxI7CO47QRIkkIlc5wJKrlhyeTPf7fu5srmAP4kQ8PzOe95zPMVisSgAAAAAjuA1+wAAAAAAjEPABwAAAByEgA8AAAA4CAEfAAAAcBACPgAAAOAgBHwAAADAQQj4AAAAgIMQ8AEAAAAHIeADAAAADkLABwA... | [
"3",
"9",
"7",
"5"
] | null | 2 |
math | pre-k | fewer-and-more-compare-in-a-mixed-group | false | true | Are there more rectangles or triangles? | "iVBORw0KGgoAAAANSUhEUgAAANgAAAA2CAYAAAClblcfAAAFZUlEQVR4nO2dzW4bVRiG3yImi/woTiuGmEayHSk/am1abCQSJJSAxDplQ9kld1DfQc0d5BLKru2msGbBgg0LxAJF1BKxiBFJY2c6SRzL08TDmMVkxk6J7fk7M2eOv0eKFFnjM9+rV589fuecOTc6nU4HBEEw4Z2oCyAIkaEGIwiGUIMRBEOowQiCIdRgBMEQajCCYAg1GEEwhBqMIBhCDUYQDKEGIwiGUIMRBEOowQiCIdRgBMGQd6978ft/qvjq5x/DrsUTLz77Eg/... | [
" triangles",
" rectangles"
] | null | 0 |
science | grade-7 | predict-heat-flow-and-temperature-changes | true | false | Two solid blocks are heated to the temperatures shown. The blocks are placed so they touch. Which diagram shows the direction heat will flow? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAC4CAYAAAAxDlOsAAAaMElEQVR4nO3deXAU95338Xf3nBodI6ETBBgsbjAxlwEbYjDxHSd5kjhr58AVb+xsnuR5qrJPsnmy9SSpfbKbirc2qaQ2zz4V28nGR+zHx65tbMccxsYc5hSXQAgkQEgg65bm1Bw93c8fI8YISUhmhp4W+r6qXFi/7un5jmb0me7v9G9aMQzDaI1BQxgCCdAMhBAiI+wK5NtgpgfKnaC0Rg1jnz/bZQkhrnfLC8BeH07+MNEJs3OTaSSEEJkQSMDJEHwUg1NhUP1... | 0 |
math | grade-6 | rational-numbers-find-the-sign | false | true | The number line shows an unknown number, q. Is – q positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAlwAAAApCAYAAADgbPfrAAAGa0lEQVR4nO3dQWxT9wHH8d97iZ89xyi1VKjYRJZO2yRcaBYRTIJQQdo0aUIcjJAqLhGaBhKIU3fgMk5DTBy2E0xCyy5oREjTgiakrdMOk0FDsYOBUAtXnbSkSauOZCldcWrHz/bbIbFHBk4Mrf384u/nZL/3Ev2il8PP///f/2c4juMI8LDR0VEZhqGjR4+6HQVNwj0H4DWdbgcAvqzZ2Vm3I6DJuOcAvKbuwmXbtlKplBKJhLZs2cInSwBoU05+WsWpcyo/mZSTfSA... | [
"negative",
"positive"
] | null | 0 |
science | grade-3 | 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 | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAADWCAYAAAAD8D2GAAAaAUlEQVR4nO3deXxU9aH38c9smWws2YAESEKQEHbZKQKiInXBW61SrdUuVp/HqlzvrbVXXPq0FRXxZV1qW611ua3YuuBSKBUVcEOQXSCBsCUBEhKykmSyzEwyzx8DwSFBJmZyziT5vl8vX2bO/Oac32D4euZ7zpxj8fl8vmI37K+Dmibw+hARCQm7BXrZYFg09I8AS3Gjz7ex2uxpiUh3N7U32PfV+R8kR8DwGH8aiYiEQk0T5LrgqBv21oG12ut/QmEjIqHWy+b... | 2 |
math | grade-2 | fractions-of-a-group | false | true | What fraction of the shapes are triangles? | "iVBORw0KGgoAAAANSUhEUgAAATgAAADeCAYAAACpFRxBAAAgj0lEQVR4nO3dTWwbZ57n8a9NUrJYovgqJW1JFtXy2GMpmJ0sYMsB4ol7gUmA9GnhOOjLAgHczgLxpdO2c5hdINOH2UMctzOHCJh2ktMeGrZ7bh3AaWDb3REgS54ZzA5MeuOxW3RIaWJS4quKkvjmPUiUk1i0HlJVZIn+f4C+tEPW8/zw6M+qp+p5atejR48eIYQQbWh3qxsghBBmkQInhGhbUuCEEG3L3uoGVIUTNwHQC1kAtI4eAEZ7j7asTVYkOamRnNS0e05NL3C... | [
"10/12",
"6/8",
"1/10",
"3/12"
] | null | 2 |
math | precalculus | identify-graphs-of-continuous-functions | false | true | Is the function f(x) continuous? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH3CAYAAACBwSh7AABf2ElEQVR4nO39fXRU52Hu/V+jmZE0ehcSCIwtMMYmFkHY2GBjQ+zUJKYmcQOpj9OeNE1P26fNyVvP03al7S8ra52UZmW1TbLSOqlPn5MTO8ddTePGeQPLNg7YYGGMLYMMMsZYNkICJCFpJM37npm9f39gyRIvZgT3rRnB97NWlqKZPZduDzN7rn3PPXt8nud5AgAAAGBEUb4HAAAAAFxOKNgAAACAQRRsAAAAwCAKNnAF2b59uxYuXKgNGzbkeygAAFy2fHzIEbhyrFu... | [
"no",
"yes"
] | null | 1 |
math | grade-2 | cubes | true | false | Which shape is a cube? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJ8AAACfCAYAAADnGwvgAAAV5UlEQVR4nO2dS3Ab15WG/37j0QBIgJRIOUW4akyNLWmmypJrbC9EbzQVy04WYy+yibOZhbydrONdsvY2WszK3mQhzVRSkZyqZGFqMbHLoqqm9EgkT5XBKpOQCYAC0Gig37O4uE2ABCU20A00gPttKJEA+qLv3+fccx/ncJ7neWUT+FYHmg5ge2AwIkHkgIwArKeA0zLAlQ3P+7ox6WYx5o03s4D4RCf/WZWBf0wTZTIYUdB0gL+3gF0TeKwDfMMmf2DCY0RNRiA... | 1 |
math | algebra-1 | write-compound-inequalities-from-graphs | false | true | What compound inequality describes this graph? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAKI0lEQVR4nO3da0xUZx4G8GcQBgGrwKJcrNJ6QSUaV7BctFj4YKXB29gSnWjcia6NNaaY2MamaVy3icZ+6EW8JBpNZ7UxpgQwBXGpUWZQEwfkZlAMSuRiFhAqSCTMHAZmPxCmJTh1Zpjyzjk8v0/yMh+eP0F4OPO+56hsNpsNCnLx4kWoVCpotVrRUcaEc3gXzuFdlDIHEREpk6/oAJ7W0tIiOoJHcA7vwjm8i1LmICIiZXK6YPf396OiogImkwkzZszglSP6U/qGevz... | [
"$x<2$ or $x>3$",
"$2 \\leq x<3$",
"$2<x<3$",
"$x \\leq 2$ or $x>3$"
] | null | 2 |
science | grade-4 | read-a-thermometer | false | true | Select the temperature shown by this thermometer. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAGQCAYAAADbbRRJAAC4q0lEQVR4nOzdeVxTZ9YH8B/7mgCuKEFQQSGo4EpwRStYtVYUWlHbCnSqbact+FbtzLTudmaqdgQ73ewI2MWlgmLrUsEFV4JrXAjWFSRYVJRww76+f4SkrNkI3ADn+/nQavLk3geEcO655zmPUW1tbS0IIYQQQgghnYIx2xMghBBCCCGE6A8F+IQQQgghhHQiFOATQgghhBDSiVCATwghhBBCSCdCAT4hhBBCCCGdCAX4hBBCCCGEdCKmbE+AkLZw6tQpAIBUKoVIJGr... | [
"17°C",
"14°C",
"10°C",
"7°C"
] | null | 2 |
math | grade-5 | compare-fractions-and-mixed-numbers | false | true | Which number is greater than the one shown? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADNCAYAAACCVwcEAAA3JElEQVR4nO3da3Cc2X3f+e/Td9wb9ysJkiBAgADvt5FmRpasSSSXHccr2euyvVtR1olXdpzY77K1u6naF3biysZ2ymW/sBwnttYbl2U73nGtJlJWM5qRNTPk8A7wBpAgLsT9jkY3Gujbsy8aDRJDEGh0P939gPx9VCOSIPo5B/0rHP5xnnPOY5imaSIiIiIiIpZwFboDu4mvxVkZX2F1apXgYIiJm+P4qnxEF2OYjgSx9RjRUBQAV5ELp8+Jy5v81V3qpqypjKLaIko... | [
"1+2/3",
"6+2/3",
"5+2/3",
"3+1/3"
] | null | 1 |
science | grade-5 | match-chemical-formulas-to-ball-and-stick-models | false | true | Select the chemical formula for this molecule. | "iVBORw0KGgoAAAANSUhEUgAAAV4AAAFACAYAAAD09xTxAACGlElEQVR4nO2dd5wkRfn/31XVEzeHy5HLcHCkI4MoKkkFUTFgQFAwYE5fv6J+TYAJsz8VUQQFAwIKiChBgmQ44I50Oefb27w7obvq90d3z87Mzu7O5oOrN69h52Y6TXX3p5966qnnEcYYg8VisVjGDDneB2CxWCz7G1Z4LRaLZYyxwmuxWCxjjBVei8ViGWOs8FosFssYY4XXYrFYxhgrvBaLxTLGWOG1WCyWMcYKr8VisYwxVngtFotljLHCa7FYLGOMFV6LxWIZY5z... | [
"H2PCl5",
"PCl5",
"PC5",
"P2Cl6"
] | null | 1 |
science | grade-7 | 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? | "iVBORw0KGgoAAAANSUhEUgAAAmwAAAGZCAYAAAA0Im0SAAB/H0lEQVR4nO3deVxbZdo38F8SlhASoA1L2bqT1NaWWrCLVqHt6FQL1RnHUajbPGpx6cxoi6PjVjo640aq7+MK9XGpCi6dcaZB7biVttrFhhaqXUL3QkOh7AECIeF+/6A5zYGwZ+Pk+n7EkJOT+9wnwNXr3NsRMcYYfFhdXS1OnTqNjo52iEQiT1eHEACAv78/IiOjMH78eE9XhQgYxT/ijSj+Oebn6Qp4UldXF6qqqsBYFwICAjxdHUJ46upqER0dDX9/f09XhQgQxT/... | [
"sample B",
"neither; the samples have the same temperature",
"sample A"
] | null | 2 |
math | grade-8 | make-predictions-with-scatter-plots | false | true | Based on the scatter plot below, which is a better prediction for y when x = 51? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFhCAYAAABK/t0lAAAnbElEQVR4nO3de3TU9Z3/8VcIuUIukhBxZkgtlyTILWxaLkmgG1aoQlJKd8uloqBoBSun9udqOVV32d2zUC/gwcWiYlewv3NWaTW1eHSFUrVcEtnOb4MJlQTBSGYCwkRIgNwMzO8Py9SQzEDgM/OdTJ6Pf2S+n2He7++cI3nx5f39fKO8Xq9XAAAAAIzoZ3UDAAAAQCQhYAMAAAAGEbABAAAAgwjYAAAAgEEEbAAAAMAgAjYAAABgEAEbAAAAMCisAnZra6taW1utbgM... | [
"41",
"83"
] | null | 0 |
math | grade-4 | compare-fractions-in-recipes | false | true | Does this recipe call for more cream cheese or Parmesan cheese? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAGeCAYAAACuOnbpAABgw0lEQVR4nO3deVjU5f7/8eewDasgKqiQWS6VhktSbqVkmqZSWpa5ffVoR3PBJbWfYSWplWUlefDkUtbR8rhVlp3KXDIzNUVFM9wVA0UWlU12Zn5/EBMEKNiMkL4e18V1NfO5577vz2DXvObm/bk/BrPZbOZ3ZrMZk8lEfn6+5cfOzg5HR0ccHBywt7fHYDAgcjMym80UFBSQn59PXl4eJpMJBwcHy4+dnZ3+/xAREREMRQHbZDJRUFBAXl4eeXl5ODo64uLiosAgUg6... | [
"cream cheese",
"Parmesan cheese"
] | null | 1 |
math | grade-8 | make-predictions-with-scatter-plots | false | true | Based on the scatter plot below, which is a better prediction for y when x = 10? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFhCAYAAABK/t0lAAAlxklEQVR4nO3df3TU9Z3v8Vd+kQkRkoCNYRIxiQlScyWhs15ALPkhUGuSS9j1B7ZBQESzrj3Ctt3DH67G7TnLdtcC8dBSwRbYeu61Kza4wXUbiontwcQep52IuEA0jhiS6AUTFMgEB+b+4WHuBjKBwGfm+83k+fiL+X4m835/4Ghe85nPfL4xgUAgIAAAAABGxFrdAAAAABBNCNgAAACAQQRsAAAAwCACNgAAAGAQARsAAAAwiIANAAAAGETABgAAAAyyVcD2+Xzy+Xx... | [
"59",
"12"
] | null | 0 |
science | grade-7 | 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? | "iVBORw0KGgoAAAANSUhEUgAAAmwAAAGZCAYAAAA0Im0SAAB/R0lEQVR4nO3deVxTV/o/8E9WICSAsgniBkKs1o3gVjuK2l2xnba2I3bxO51Cl+l0ge6LOHbazlTa+X7t2IL9Ta1twS7TdsTuVbG2rkGl1iW4CwZFkCUQICSc3x+Ya8K+ZD153q9akpubc88N8PDcs10RY4zBh1VVVeLUqdNobm6CSCRyd3UIAQDIZDJERERi+PDh7q4K4RjFP+KJKP51TuruCrhTa2srysvLwVgr5HK5u6tDiJ2qqkpERUVBJpO5uyqEQxT/iCej+Ne... | [
"neither; the samples have the same temperature",
"sample A",
"sample B"
] | null | 1 |
math | grade-5 | understanding-probability | false | true | If you select a marble without looking, which color are you less likely to pick? | "iVBORw0KGgoAAAANSUhEUgAAAJkAAABmCAYAAADYmDN2AAAhBUlEQVR4nO2deXRd1ZXmf+e+9zTPtrBsAQLZxhjMFEOlG4NsQ8DOsDoQUpCQUIF0VpNFd1UGkgqBpFLdCwx0qhZJJYtKpytJAUVBAinjdFaFUCEhuOkYD8VkMI4ljAfJMrYka3rjvWf3H+fc4UmyeRotCX0s1vV97+m+c/f9zt7722d4SkSEOcxhEuGc7AbMYfZjjmRzmHTMkWwOk445ks1h0hGfyi9r78ry+v4Uh4/lONSTo7MnR1/So746QUNNgobaBAvrEpzXVEp... | [
"black",
"blue"
] | null | 0 |
science | grade-3 | identify-magnets-that-attract-or-repel | false | true | Two magnets are placed as shown. Hint: Magnets that attract pull together. Magnets that repel push apart. | "iVBORw0KGgoAAAANSUhEUgAAADQAAAG+CAYAAADcJCfhAAAI2klEQVR4nO3dX2xUVQLH8d+de2emnU4LtOA2lJYKbSrJ8jcbUgSqzRKjUdk/sFqt2Sd9MLiBmGB2NzEmJgRiDDFs5BmNykaTVR6sMfuyQCDWJfLHkBoCYquCRCGUaTvTmbn37MMNpZUtf8+d+Tn5fd5apvfcb2fuuaeTcMbxA2N+u+0yKoVnDJAvlvs07ImV+wRsUxA7BbFTELuKC/KiOnC6ysH6FQl0tsfROsdFXbUDABjJGQz95KP/TBEfHRnH8JixOq5T9I3pevW... | [
"attract",
"repel"
] | null | 1 |
math | grade-3 | am-or-pm | false | true | Alan is staying up late reading a book. The clock in his room shows: What time is it? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACwCAYAAAA16xkbAAAOXklEQVR4nO3dW4zc1X3A8d/srmObHUwoCd5wE8kuEuW2g9JWtGuTPlDZDxGtMIikUiGq0qrBVEoixbwUItY8YEsleSiWwA8JoYYW4e1TpF0qQAVvAVE1a5VCUHacO4zTcJNnbK8vO31wvHjH9u7OzBn/Z2c+n6cdMXP2/PE+fOfMmfPPVavVagAAAEn0ZD0BAADoJAIbAAASEtgAAJCQwAYAgIQENgAAJCSwAQAgob6sJ9Cow4cPx9jYWExOTsbbb78db731VtZTagv... | [
"11:15 A.M.",
"11:15 P.M."
] | null | 1 |
math | grade-1 | select-three-dimensional-shapes | true | false | Which shape is a rectangular prism? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAPLklEQVR4nO2dy29c1R3Hv+c+PX7FsRM/IahIEIpQhVokxAK6aLugD6ldVZXYVe0f0H23XbLrCrFmWaktsGlVqSxaUkRI4iTgACEEHDvEcbDn3pk793G6OPfceXtedzxzz/l9pCjO2FaOPZ85c87v/H6/wzjnfK8GfOoDxzEQcRDE1GExYMEEnpoF1hyA7QWcXzqa9LAIon9eXASsW774x4YDXJwTVhPEtHEcA594wL0asOMDxlEkPkHSEtPMgikcBYByDBhxwyc... | 1 |
math | grade-8 | front-side-and-top-view | true | true | If you look at this object from the top, what will you see? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADhCAYAAADyOcJJAAA5LElEQVR4nO3dfVSUhd4v/C8IyJswiCggCLNP+ZqKBha+rIDus85OS9j3ndGzpQVap3zJhL1T9zqmoLbPuovOHsydYk8KrKRHdN+JmWirDjN3qZB6J7oF3EJ7RgYBAQVGXpSXmeePy+tS0AhhZq4Z+H7+SgLmh/XHj2t95/d1MJlMJhARERERkVk4yj0AEREREdFwwgWbiIiIiMiMuGATEREREZkRF2wiIiIiIjMacQt2c3Mztm3bBgcHB6xYsQLNzc1yj0REREREw4j... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA3gAAADhCAYAAACa7xdYAABBKklEQVR4nO3dfVTVdd7v/ycIJsjNRkQRIdhzJm/Lu8DCmyXQddaZrMSZM2a/0RbodMpu1Zmsa50yKJuzTkNn0LqmtF8KrNF+qXOV5oi16rD31Y2QeiU2CqY0ewsICCo3Cii3vz+2e0+ZGerefNnweqw1awYSvm+KP3rN5/X9vH26u7u7ERERERERt/Dx8TF6BBnAfI0eQERERERERNxDAU9ERERERKSfUMATERERERHpJxTwRERERERE+okBF/AaGhp48cUX8fH... | 0 |
math | grade-2 | choose-the-appropriate-measuring-tool | true | false |
Which tool would you use to find out how long until the bus comes? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJYAAACoCAYAAAACcRc/AAAWE0lEQVR4nO2dWWwb17nH/2eGpBZTJEVRkm1J1uJFtmVtluMFho26KNIE7kUKtA0CBwX60CRok6B5CNA+FAEaFKiRPOQhRVoDRVrUDYKgQdrkOm6CNkmNIkXRG22WZEm2JduyJMsWqYWrSHH43YdZOFykiA6Hi3x+gDya4VA8Q//wnWW+c4YREc1FgOtBwCcBUQKHkzEmBlSIwO5yoNYCsLkw0X+9+S4WZzNxxAaYrgXlnW0WoHWLbB2Hkyk+CRgPAHciwNUgIHi... | 1 |
math | grade-8 | compare-linear-functions-graphs-and-equations | false | true | Function A and Function B are linear functions. Select all the statements that are true. | "iVBORw0KGgoAAAANSUhEUgAAAjcAAAGlCAYAAAAGbtd7AABPwElEQVR4nO3de3yT5f0//leSJm2atLQUeoCecQW0SJlAi1oqdYh4mgcO6lTUKW5fccpEp9tn7KPb2E+nw03xgMePh3moKAqbullkoFI6D2BRqEoaaClNoTRt0zvnXL8/sJFA26Tcae/05vV8PHj0keTqdb8T3rn6yn3fSTRCCAEiIiIildAqXQARERFRNDHcEBERkaow3BAREZGqMNzQkHrkkUeg0Wj6/HfxxRcrXWKI/Px8aDQarF27dsi3PWvWrODj8vbbbw/59ok... | [
"The y-value of Function A when x =\n–\n6 is equal to the y-value of Function B when x =\n–\n6.",
"The y-value of Function A when x =\n–\n6 is less than the y-value of Function B when x =\n–\n6.",
"The y-intercept of Function A is less than the y-intercept of Function B.",
"The y-intercept of Function A is gr... | null | 3 |
science | grade-4 | predict-temperature-changes | true | true | Two identical blocks are heated to different temperatures. The blocks are placed so that they touch each other. Heat can flow from one block to another but cannot escape from the blocks. Later, the temperature of each block is measured again. Which pair of temperatures is possible? | "iVBORw0KGgoAAAANSUhEUgAAAQQAAACgCAYAAADq8hJGAAAWnklEQVR4nO3deZgcdZ3H8fevqvqY+0hmJncI5NIEAkkIh66wILjKso8s6q4Xiygouu7iI6LoKnizuOijKPqo4D6s4O4+qyyu6K7uKihBCIQcJGRCLiZ3JjOZs6enu47f/vHrqclkjvRkeqZ6Zr6v5+EJXV1V/ev+9Xy66lu/qlJaa40QQgBW1A0QQhQPCQQhREgCQQgRkkAQQoQkEIQQIQkEIURIAkEIEZJAEEKEJBCEECEJBCFESAJBCBGSQBBChCQQhBAhCQQhRMi... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAiAAAAC4CAYAAADaI1cbAAAghklEQVR4nO3dd5gcd53n8fevqronB400GmVZthJYWI4yBo5kwmHW++AFdo/kY8lxD45k1g+YuHDmYB8WDLeA2TsfYW+fYzljYJ9l75YoL5ZxkC1ZkpU8suIEzWjydFfV7/6onqQJakk9VdU9n9fz+Gl3pf51/2q++lbVt35lAIuICGCt5WQODgxBfwC+ooOIlIhnoMGFDbXQlgWDEhARKTg5atnRl3QrRKTSXd8IXtKNEJH02D8UvS7Pwqa66GhFRKQU+gPYNwg... | 0 |
math | pre-k | circles-squares-triangles-and-rectangles | true | false | Which shape is a square? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACbCAYAAACao4KyAAAD7ElEQVR4nO3aTW4TQRCG4c/OzyIksAOxYgUcIUfiRtwkl4jgAAH2hB3ESaSEWMNiCOTPie3pqa6uet+VRyNZtXg09nT3pOu67vhS+nYuzebSVSeiwW1OpL0N6e2O9GpbmhxfdN3hSe2xKHL7z6XNr+f9xett6f2zXiHR0GZz6ehM+n4pfTmXpidX/Q2QUcn2NnpTknQ6l6bzGzeISnZt6ncnTeuOQlkCGpkENDIJaGQS0MgkoJFJQCOTgEYmAY1MAhqZBDQyaTC... | 1 |
math | grade-2 | interpret-bar-graphs-ii | false | true | Sophie visited a restaurant kitchen and saw some salt shakers, ketchup bottles, and mustard bottles. She made a bar graph of the kitchen supplies she saw: Which item did she see the fewest of? | "iVBORw0KGgoAAAANSUhEUgAAAhAAAAFfCAYAAAAf5vWtAABaJklEQVR4nO3dd5xU9b3/8dc5Z8r2XXDpCBiwgIpUMSqKHXtsMWp+UaNiCdbYriZR7zWxpVhivNEYIVds0YDRxIioK1bUpSp2ZRFYpG0vM3PO+f7+mLK79IHdnVl4Px8PZMqZmc8M6573fKtljDGIiIiIpMHOdAEiIiLS9ShAiIiISNoUIERERCRtChAiIiKSNgUIERERSZsChIiIiKRNAUJERETSpgAhIiIiaVOAEBERkbQpQIiIiEjaFCBEREQkbQoQIiIikjYFCBE... | [
" ketchup bottles",
" mustard bottles",
" salt shakers"
] | null | 1 |
math | grade-4 | identify-parallelograms | false | true | Is this quadrilateral a parallelogram? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADJCAYAAAAZxkUSAAAhHUlEQVR4nO3dWXBcVYKn8f+9Nzdt1mLJS3kDbGQL4Q0vgG3ZLiigoGiapgOGrohqeBgGT3QEFP1AEUwEzdQDAzwMUDM9AcFENBQRU0wRQwFNUVWsRpJtvIA3jGxj4cLG2LJl7Uuu985DpnRT2JaVUsq5fb8n3bRScSylIj6dPOdcw3EcRwAAAADSwsz0AAAAAIB8QmADAAAAaURgAwAAAGlEYAMAAABpRGADAAAAaURgAwAAAGlEYAMAAABpRGCn0bGg9OOdEf3pLEe... | [
"no",
"yes"
] | null | 0 |
technology | grade | font | false | true | Identify this font type | "iVBORw0KGgoAAAANSUhEUgAAAPoAAABQCAYAAAAwa2i1AAAH1UlEQVR4nO2dwW7aTBDHp/C9R6WejFEfIhISNc1b9BRBL1HzFNSconLqWyQGJCQeAtn4VKkPgvwdmnEHs7s2YGon8/9JSAk2uzvO/nd2Z2fJuyzLMgIAvGk6TTcAAHB9IHQAFAChA6AACB0ABUDoACgAQgdAARA6AAqA0AFQAIQOgAIgdAAUAKEDoAAIHQAFQOgAKABCB0ABEDoACoDQAVAAhA6AAiB0ABQAoQOgAAgdAAVA6AAoAEIHQAEQOgAKgNABUACEDoACIHQ... | [
"Lansbury",
"Trebuchet MS",
"Times Ancient Roman",
"Impact"
] | null | 0 |
math | algebra-1 | identify-linear-quadratic-and-exponential-functions-from-tables | false | true | Is this function linear, quadratic, or exponential? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEqCAYAAAAvYSeKAAAZyUlEQVR4nO3de5BW9Z3n8Y8dLuKAtIM2w6jIRUc6TggohjWojAmipUtiRAleYDERjcRZksyAhKhRdnGibSYKrKApMzKBDIrXSFCRJKhZlTGzEHEFo4OXUZmVSAhNBwQb9o9UqCLIRfk1zQOvV1VX0afP+f2+D3+9+9R5nj4gk/ttTgV4+NT/mUFPXt3cY+yWzVf+orlHAACgiVU19wAAALAvEdgAAFCQwAYAgIIENgAAFCSwAQCgIIENAAAFCWwAAChIYAMAQEECGwA... | [
"quadratic",
"exponential",
"linear"
] | null | 2 |
math | grade-4 | scalene-isosceles-and-equilateral-triangles | false | true | Is this triangle isosceles? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACvCAYAAADHa6lVAAAhJ0lEQVR4nO3deVyVdd7G8euwo4Cy4xa4YZKhghtULqWpKWjmivuaVlra+tS06DzWlLllMzY64zRNaTZZeoAxzd1MW8yt0WhR0FFxxR1F4Dx/OJxHEEvxnHOfc/i8//Pcyrl8Tb1eV7/53t+fyWKxWAQAAADAJjyMDgAAAAC4Ewo23Epubq4GDhyo2267TRcvXjQ6DgAAqIQo2HAbM2fOVMOGsVq4cKEOHDigb7/91uhIAACgEqJgw+WtX79ecXFxmjRpkgoKChUSVku... | [
"no",
"yes"
] | null | 1 |
math | pre-k | addition-sentences-up-to-10-what-does-the-model-show | false | true | Which addition sentence does the picture show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABUCAYAAAC4PkCPAAARgElEQVR4nO3dW2wc133H8d+Z617JJSlRlGQ4ulWyXUVS6/rBduDGaREghRIgadA+pTekTYsARdICLQq0BQIUQR8KtGiAXlCgtxhI0YcWhfNQBHkwjMbui2wnMmxFthVFtSmR1GW5F+7O9fRhuORSImktOXNm9uzvAxASVuTOfE159OfszhkhpZQgIiIiIqJUGHnvABERERGRTjhgExERERGliAM2EREREVGKOGATEREREaWIAzYRERERUYo4YBMRERERpYgDNhERERF... | [
"3+5=8",
"3+7=10"
] | null | 1 |
math | kindergarten | subtraction-sentences-up-to-5-which-model-matches | true | false |
Which picture shows 5 − 2 = 3? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARIAAABKCAYAAAB3ndsNAAALs0lEQVR4nO3db2wT9x3H8bfvzv8TJyYBkkJLlpZCaGkDg9BoXdeqaukmVaMMaWuhW7RNWvegqqb1wTRt09pnnaY9mSbtySbaNdOkjW4rUjva7kGfLEAQo/8IAQqMf3VIIInj+P/59uBiO07sxI6d+Ox+XxKCs++c3wfd95vz+Xc+m2EYRiAO58MwpUPSQAghFqTZoFGFjR5Y6wBbIGYYx4PVHpYQolbt8oF2LmwutDtgk9fsMkIIsZApHYan4bM4nA2DEkyaT0g... | 0 |
math | grade-2 | match-digital-clocks-and-times | true | false | Which clock shows one twenty? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMIAAAB5CAYAAABr7P6HAAAHcElEQVR4nO3dv28b5wHG8S8l24Oj3C1xGwciUA9pWpPoVCAwlxpGfkhDO1gy+Q9YWUVFmqVSWRNLArzUJNLVtEkO7WC1dgp08eBswZ2A1B1aU0BduyhwUixXsunrwJCW1DQmT/fe8aTnAxgWId37viTv0fvy3vc9pXzf9x/uwF+3YLMFz31EDr1jKXh9GN4+CT88AamH275/byPuZonE510Ljt3faj84fQLeea2dEpHDbrMFXz+Bf+zAX7ZgaON5+xsKgRwlrw+... | 2 |
math | grade-8 | make-predictions-with-scatter-plots | false | true | Based on the scatter plot below, which is a better prediction for y when x = 6? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFhCAYAAABK/t0lAAAd/UlEQVR4nO3dfXDV9Z0v8E94kAARI1ilgBUlIMJCQtPd8nBXgnOtt1Wu+NBrO0XwCc0ydLV1dDp3ujX2j3V1FZXZur3aDlCnc11R0XXaru5dSeu4wY5ZT/ChSohNxwjUEY0YBN3guX+05paLQcj5nvNLwuv1F+d8OefzDs543vz4/r6nLJ/P5wMAAEhiSNYBAABgMFGwAQAgIQUbAAASUrABACAhBRsAABJSsAEAICEFGwAAEipZwd63b1/s27evVOMAACATJSvYuVw... | [
"2",
"7"
] | null | 1 |
math | grade-1 | select-three-dimensional-shapes | true | false | Which shape is a cube? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAZHUlEQVR4nO2d629c93nnP+d+meFweNH9rlCUbclRfEkUO3Ysp8BmgyZYbLIIkkXbLPZNW6Rpi77ZP2HfbmME2GJvKdpmu9sXWzRtF80Wazn1xpYS23FMWRZFS6IsUaJ458y53/bFISlSN0okNXPOzO8DEIJGIvmbc758+Pye7/N7jpRlWXYzhDEXGgnEGQJB4VAl6FHgiA07dJBuBll2drHdyxIIHp6TNVAvuvlfdulwtJKrWiAoGo0ELjhwI4RRF+TFOP8HIVp... | 0 |
math | pre-k | count-scattered-shapes-up-to-5 | false | true | How many shapes are there? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAD3CAYAAABo6yAfAAAd/klEQVR4nO3d+49b1d3v8c/23uOxPb6Mx5OJTiLxqEpopSaiUtpHJ0Q0AgVFTUhJqiIkLoIfzn9z/gsQlyOUBxKVAEGF0EZqiB5AFKWRqiZqkRikTOzxdWyP7e19fsikD7eQuWx77b32+/UHZL5ee2Xm47XX+i4nCIJAAAAAAKyQMl0AAAAAgPAQ8AEAAACLEPABAAAAixDwAQAAAIsQ8AEAAACLEPABAAAAixDwAQAAAIsQ8AEAAACLEPABAAAAixDwAQAAAIsQ8AE... | [
"2",
"4",
"5",
"3"
] | null | 1 |
math | grade-1 | purchases-do-you-have-enough-money | false | true |
An orange button costs 27 cents. Do you have enough money to buy it? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAB3CAYAAAB2WzTHAACEMElEQVR4nOzdd3gc1dn4/e+Une276r3LsuXejQu2KaZ3QocAIaEFQgghgQQeWgg87y8hCU8KEEqAJISE3osxxRgMBvde5CLb6l3bd2fO+8dKi4UlIxlTAudzXbrAM7OzM2dmZ+45c859FCGEQJIkSZIkSZKkbwT1q94ASZIkSZIkSZIOHBngS5IkSZIkSdI3yAEP8DvigvLXupj4Zjcdcdn6R5IkSZIkSZK+TEMK8J+tj3Prhsg+A/e3WxJsD1ms6DT53tLQ595ASZI... | [
"no",
"yes"
] | null | 1 |
math | grade-5 | regular-and-irregular-polygons | false | true | Is this shape a regular polygon? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD6CAYAAACbKDARAAAfuUlEQVR4nO3d6XOU557e8atbayMJLUgtPY0RxmC8YJt972axwQu2Mabl5fhMkplKJSf5C2bqTJKqVGXO5GSrSWUmyaTyLjV1bB+12Gx8bLyAuyUEBrEYGBubzcf001pYhAQIkFBe9CIJJBCou5/ufr6fl11l9Hv5uy/f1/04BgcHBwUAAAAgKZxWDwAAAADkEhZsAAAAIIlYsAEAAIAkYsEGAAAAkogFGwAAAEgiFmwAAAAgiViwAQAAgCRiwQYAAACSKN/qAYDx6rl... | [
"yes",
"no"
] | null | 0 |
math | grade-2 | select-three-dimensional-shapes | true | false | Which shape is a rectangular prism? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAV1klEQVR4nO2d3W/bVpqHf5JISZRNyZZcSVvHsd00jrtxJunAzUcbTAq0QItmBwl2LnbQq/5rvSkwN4NmZlNsgQ2QzCZbN/Egzjhd2LFTf8UdWbVkS7RFUSTFvTg6tGQp8RcpktJ5buzIikzrPHr5nq/3+AzDMDIVYLEESDqgGWAwXAfnA8QAcDYCpIKAL6MYxuOi05fFYByeK1GAWyiRf/xLEDjXQ6xmMNyGpAPzu8A/K8CLEuAvauQHTFqGmxEDxFEA2NEBv17... | 1 |
math | grade-3 | coordinate-planes-as-maps | false | true | What is at (2, 3)? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAE7CAYAAADn6/a0AACGnklEQVR4nOzdeXxU1f34/9e9d+7MZLKThR3ZZZVNRFGRRVERQQvudLGuda36sbWF/j5d/HwVra3aaqsfP7XWrbW41wVUFBAVNYIiIIvsSViyzWTWu/7+mDAQkkASJhDk/Xw8RjK5d845d0wm7zlzzvutuK7rIoQ4qsQTBjWhaKsea5oWOyur2bCtjK07dgKgotK7eyeG9utNViADRVEafazuUSnIz2n1uIUQQohjgedID0AI0QouWJbd4odFY3FWbtjEsq+/IZCVhz8... | [
"grocery store",
"bicycle shop",
"toy store",
"hardware store"
] | null | 0 |
math | calculus | domain-and-range-of-exponential-and-logarithmic-functions | false | true | What is the range of this exponential function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABfXUlEQVR4nO3de3RU553m+6dUVboLSUggYRkJYwy2MMLGBoeLbNwQ2x07TiCdwcmJE/dxT+JMnKRz1smsrJwkk87xeLKmO+mJx8mkPZOJnXSvk4kn2ImxBcEBGyJiMDIIJIgtYxASoEvpWvddVXufP7DUiIuRYL+UCn0/a2U5VdR+9NN+q3b99qu3dnkcx3EEAAAAwBVZ6S4AAAAAuJrQYAMAAAAuosEGAAAAXESDDWCMqqoq7dq1a/T20aNHNWPGDLW3t6exKgAAMgc... | [
"$[5, \\infty)$",
"$(-\\infty, \\infty)$",
"$(5, \\infty)$",
"$(-\\infty, 5]$"
] | null | 2 |
math | algebra-1 | identify-functions-vertical-line-test | true | false | Which of these relations is a function? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAATIAAAE3CAYAAAApC812AAAZtElEQVR4nO3da2xb533H8R91oWTRlhR3pNS4qSXArVVLmeXa1mUBAitFsTi1WzhD56Do0DVrgGVb3mxA4ldetzRBF6Sv6rTpm6jtm8Z5Ubi1AmfIYHkYCl1SwUxDJXKahHTc2jKZiy4mRVIX7gV9KFJ3WaLOecjvBwgkUdI5j2X5l//znOecvyuVSqVGk9J7MWlyVppJCQAcrcwl7SiVvlAl1bkl12gilRqcsHtYAHBn2qulsj/G0h981i3t9aRTDgCcbHJWuhK... | 2 |
math | grade-5 | mean-find-the-missing-number | false | true | Jaden has the following data: If the mean is 29, which number could h be? | "iVBORw0KGgoAAAANSUhEUgAAAQ4AAAAkCAYAAAB48dRBAAAH1klEQVR4nO3ce1BU9xXA8e8uCwsLAgoCIlJWVEQkxtTHiEokRo1N1BofsbUxRmtaa0yNabRpGpM0Y8yrWjXYpDFtp7G+4rPG8TEa8U2NL6oCEWFda2UXo4LiLuzr9o/VjTsY3Y33steZ32eGYfb3O/feA2fnzO/evXc1kiRJAA6PC5uzAbfkQUIQBMFLA4RptBjCI4nQ6rxjkiRJ112N2F2Noc1OEATVM+j0GHR6dE6PWzQNQRACYnM1Eq4NQ2sTTUMQhCDYXA60Lo8... | [
"26",
"40"
] | null | 1 |
math | algebra-1 | identify-linear-quadratic-and-exponential-functions-from-tables | false | true | Is this function linear, quadratic, or exponential? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEqCAYAAAAvYSeKAAAlVUlEQVR4nO3de1hWZb7/8Q/IIRUE5ZBEKgcL0NI0FJXUMRXdljUznkDDQ+QptfRqYjo4pJRG6SQHt1ozWMyIWo66GwsV3ZPmHkP9pWaNaLrxbArJGEKoD4f9R7+evZ8BOej9CNT7dV1cF9zrXvf3u56/Ps+67rVwODL2dKWagLuS2uj8C4UN3UaDC8ls19AtAAAAoAaODd0AAAAA8FNCwAYAAAAMImADAAAABhGwAQAAAIMI2AAAAIBBBGwAAADAIAI2AAAAYBABGwA... | [
"quadratic",
"linear",
"exponential"
] | null | 0 |
math | algebra-1 | perimeter-area-and-volume-changes-in-scale | false | true | Look at this rectangle: If the height is doubled, then which of the following statements about its area will be true? | "iVBORw0KGgoAAAANSUhEUgAAABcAAAAOCAYAAADE84fzAAAB8klEQVR4nLWRPUhyYRiGn8/zRenQew5hg3DUQcnFKdemBt10aXEIxFGcXF0snAShpVGooCVIt5yD0MVZnBwsEsKfA5bgD1eDZITxUfR1by/cXO/Nc/0BkF+K7bfAS/hkMpFkMilKKTFNU87Pz38E1XVd7u/vF/B8Pi+WZcnj46NcX19LsViU8Xj88+kApmnSarX4VzKZDKlUavnu9/vY7Xaenp6oVqv4fD52dnY4OjpC13U6nQ4yGAxYX1/n5OQEn89HMBikUqmswBu... | [
"The new area will be\n1\n2\nof the old area.",
"The new area will be 3 times the old area.",
"The new area will be 4 times the old area.",
"The new area will be 2 times the old area."
] | null | 3 |
math | grade-1 | open-and-closed-shapes | false | true | Is this shape open or closed? | "iVBORw0KGgoAAAANSUhEUgAAAQkAAABkCAYAAACVdcVUAAAFMElEQVR4nO3d7WuVdRzH8c/O2WIw48jAiPMgJcsKXLCSSDMoKYfdOGdE0S2USFGMqakV0YMeZDeuzaI7KtCsrMTNCVYbNMKgjFaDZqQZoVHngcPhQQfDOU8PFou5s6/n7Fy/XXfv1x9wXb9Hb67zPdf5nrJcLpcTAEwi4fcBAAQbkQBgIhIATEQCgIlIADARCQAmIgHARCQAmIgEABORAGAiEgBMRAKAiUgAMBEJACYiAcBEJACYiAQAE5EAYCISAExEAoCJSAAwEQk... | [
"closed",
"open"
] | null | 1 |
math | grade-1 | comparing-review | true | false | Which group has more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAagAAABeCAYAAAB2DoBwAAAFUklEQVR4nO3dzW5UdRzH4d+0wAIBN8aXC1AvgYXX4FV4NQRUFrgxsCHEJYmygAIRE4EAG6MEEkSriSGOsYZkgEkoDMfFgUBLO52X8/Kbw/MkEyhDz5xPZvFN4U/pFUVR9NcjfhtGPBhFPC0CABq3qxexfzniw70R7+2J6PUfF8WNQdu3BQAvHTwQsevusPzggz0RH79VrhcANO3BKOLOo4i/1yN+HUYsDZ6WTxgnANq0f7ncooiIh6OIpdErTwBAm15s0ZMiYqn... | 1 |
math | grade-6 | interpret-histograms | false | true | The members of the local garden club tallied the number of plants in each person's garden. Are there more gardens that have 1-10 plants or gardens that have 61-70 plants? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFeCAYAAAC/0mhdAAA0+ElEQVR4nO3dd3hUdcL+/3tSSCMhCQk1CFKkBjEBXEC6SBdEBZel6EpRFrB8V2CLZZd1XdjHR8yzu1n6AorSDJhIEwENEEom9AhSpARCAgJplJAwvz/4MUskCQdyZiYD79d1eZk5c8r9yUmGmw9nzlhsNptNAAAAAEzh4eoAAAAAwP2Egg0AAACYiIINSPr+++81evRozZw509VR7luffPKJRo8eLavV6uooAAA4lJerAwCONnnyZKWlpdkfe3h4qHLlyoqKilLv3r3... | [
"61-70 plants",
"1-10 plants"
] | null | 0 |
science | grade-3 | read-a-thermometer | false | true | Select the temperature shown by this thermometer. | "iVBORw0KGgoAAAANSUhEUgAAAI4AAAHPCAYAAACFjuJ1AAAfj0lEQVR4nO2db2wb553nv/yjf7ZmblO7SE0O2gL2ajnFFV3XNvnq9mCVPOQaoLLUvDlADLXbAouIJnazt4Bp69ViK1m6HrYb0TYOW7SgIuHuxUVUZdwGuyvGwWJ30ZCHtNgiVzJKXgVD5c/W3nioxJbEP/dC4SwpUYo8D4ee8e/3AQSLM5yZx8nH33me+fN7XHfv3q2DYR4R9+NuAONMWBzGFCwOYwrvQSvqde76MLu4XK59y9qKs7OzA13XLW8Q4wwGBgZw7NixlmV... | [
"115°F",
"80°F",
"90°F"
] | null | 1 |
math | grade-3 | identify-unit-fractions-on-number-lines | false | true | What fraction does the number line show?
0
1 | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAAoCAYAAADE3o01AAADjklEQVR4nO3dsWsUaRwG4HfXlQQL19UrDYjBQiIIhwixESzs0gYsLS5gqY3/gII2KlZyhZVaaGOhf0Jci0QIYQuLCBpTeV4gpklI2CvE3MGheLlJZjPzPOXsFu/LNr/59ptvGo8fP+43Go1cunQpVfbkyZPoWQ116JjoWTV16FmHjkl9egLb11pcXCw7w67Qszrq0DHRs2rq0LMOHZP69AS2r1l2AAAAqJJW2QF22nJ3JQt3F3P6zbkkycxsL6NXR9IZP1hyMgAAqqj... | [
"1/6",
"1/2",
"1/8",
"1/4"
] | 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 | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAADWCAYAAAAD8D2GAAAaj0lEQVR4nO3daXQc5YHu8X9VL2q1NkuyZNlG3vAqvGCwLTDYmC0kgCGBJKwTkrmTCSQzZ3Kz3HOTuWdyZnLhJmcg5ORwzpA7F5IMa0higkMY7AQwZjNeGYxXbLAtWda+tqTe3/uh7Y7bFnaDWl2t1vP7YlRUV71tWg9VT1fVaxljTHMYDgxAXwyiBhGRjHBbUOKCWX6Y4AWrOWTM5l6nhyUi+a6+FNzvDyR+mOiFOUWJNBIRyYS+GOzrh2Nh2D8Adm808S8UNiK... | 0 |
math | pre-k | ordinal-numbers-up-to-fifth | false | true | The first picture is a house. Which picture is third? first | "iVBORw0KGgoAAAANSUhEUgAAAaUAAABdCAYAAAAFZHluAAAdFklEQVR4nO2de1RU173Hv4d5IAMzI0IBkYkKVREBTVXUSaq0AaJNfJsYNalN1dY2vT4So133JipZ3rWiURttbmKqFpOahwlGW9M8wLTarKAmWgmo+CgEM4qQODEML5kZOPePkWEG5nHOmXPmxe+zli49s1/Al/3bZ//2/v0YlmVZEARBEEQQEBHoARAEQRBEF2SUCIIgiKBBMqP0vYXF0I9NuPsfTfjeQjuEBEEQhHcEGaXDNywovHjbo7E5dtOK2tZOlDd24PEzrYI... | [
"dog",
"house",
"paw"
] | null | 0 |
math | grade-2 | greatest-and-least-word-problems-up-to-100 | false | true | The members of the track team compared how many miles they ran last week. Who ran the fewest miles? | "iVBORw0KGgoAAAANSUhEUgAAAQAAAAC9CAYAAABcUaN5AAAt2UlEQVR4nO3dd1QUV/vA8S9VQLpgQapiARuKDRuavMaGvSRqjLElBjUaFVvyavxpjKKvkogajTWJicZubCTGCmIHG4IVxAJioXeY3x8rKyt1QVhw7+ecPYedvTNzl5l55s6d2ftojFniJCEIgtpZPyMEbYCRg6aqui6CIJSjLTuXA6Cp4noIgqBCIgAIghoTAUAQ1Ng7GwASsnT48GYPxtz6DwlZOqqujiBUSJUyAJyOs2JTtHOhB3ZwoiVP0qtyO8WUxQ9alWPtBKH... | [
"Sophie",
"Leah",
"Helen",
"Caden"
] | null | 3 |
math | grade-7 | apply-multiplication-and-division-rules | false | true | The number line shows an unknown number, z. Is – 4z positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAGMklEQVR4nO3dTWwTdx7G8WfseJw6BIIgtDkEoVZcEAIlBJOwVEJqb4iDKTmgqhEVFQKU015Y9UyRuK0qkEBCe0hFBFpkKiFxKQcceoidFxrqEqmHQkGrbMkG0q3zYjv27CG2IUteG2f+tvl+DtbM2IdHGh8e/fWb/1iO4zgCgDLS3d0ty7J07Ngx01HgEu45gHJSZToAAKzUs2fPTEeAy7jnAMrJsgt2Op3WwMCAotGotmzZUnKrCJmRLmVGvlE2MSRJ8qzbLW9Dh7w... | [
"positive",
"negative"
] | null | 0 |
math | kindergarten | curved-parts | true | false | Which shape has a curved part? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAGT0lEQVR4nO2dS08bZxSGX3NbpEm760VZ97Lpmj/T39cEBSkbuonUDbsYkBIRlKZUiEUCVIIFOEYO2EwWn2go2Nhjz3e+c3kfyRL2zMQj9OB4zrznO62qqqqjC+Cfc6AzAPoVCJmZhRbwaB748QHw3RLQOvpUVe2z0qdFPLP8NbCwe56e/LAE/PxVspCQWekMgHdd4PAC+PscmDvrpw2UjDTJo/nkFAB8HABzgxsbCGmSa6cuK2Cu7KmQKFA0IgJFIyJQNCICRSM... | 1 |
math | kindergarten | count-money-pennies-and-nickels | false | true | How much money is there? | "iVBORw0KGgoAAAANSUhEUgAAAMcAAABECAYAAAA1ISGwAABOeklEQVR4nO29d5gcZ5n2+6uu7uocp2eme3LWjDQapVEcSbacZeGEE4Y1LBkWH7PH5lt2j/mAhV2+72IBsywLrMHsro3zYq+THGTJtnLOYYImx57U0zlW1fljVLUSyEZygP3O0X1dvqSRe7qq3nqf933C/dyvoKqqyiVcwiX8Hgx/6hu4hEv474pLxnEJl/AOuGQcl3AJ74BLxnEJl/AOMP6pb+D/L1AUBVmWkWWZTCbDzMwMiqKQTCZJJBLEYjGsVit+vx+Xy4Uoipj... | [
"12¢",
"11¢",
"6¢"
] | null | 1 |
math | grade-7 | identify-trapezoids | false | true | Is this polygon a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABpCAYAAAAA2lT8AAAPXElEQVR4nO3de4xc1WHH8d+5c2dmbWzWb2yvWa8NGJLaMcZgDDYGGhTahDxqoohASqERIaC2BAgUGiltUiHSRAgsJEQqESBNQa2K07SkadI2AWwHg9dgY4uHMXi9fqzx+rH2Gntn7p17+ses78z4/ZiZM4/v569zjxb2hwTit7Pj+RlrrRUAAACAsvBcBwAAAAAaCQUbAAAAKCMKNgAAAFBGFGwAAACgjCjYqD2dndLu3a5TAAAAnBIKNmrP7bdL48ZJt9xC0QYAAHW... | [
"yes",
"no"
] | null | 0 |
math | kindergarten | match-analog-and-digital-clocks | true | true | Look at the analog clock: Which digital clock shows the same time? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABS00lEQVR4nO3de1zUddo//tdwGhBhBuUo6gx4AkwZD3kqOWRqZSlmbdthA+/N2t1vB2y39r7vbQPvtt1fd7srVrt3u9UtlW3dlYmaHTRzxFOY4aDJwRQGT4igDKAww/H3BzJxmMN7TswAr+fjwaNh5v35zBUyD655z/W5LklnZ2cniIiIiIjIKbzcHQARERER0VDCBJuIiIiIyImYYBMRERERORETbCIiIiIiJ2KCTURERETkRD7uDoDcr7WlHa2GNrQY2tBiaEeLoQ2... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA5AAAAEJCAYAAADiusiGAABdkElEQVR4nO3deXjTZbo//nfXdKFNCl3ZkpatLdqGfZMusqkIlHEbFaScEWY54JQZdc6ZRcpRZ36OzlDUma8DeqiA4xxHpICogEhbFi1iSYt0AdqmbKW00KSFNun6+6M0dsnyydak6ft1Xb1Ik+d5Pjch0dy5n8Wto6OjA0REREREZBNubm6ODoHIbtwdHQARERERERENDEwgiYiIiIiISBAmkERERERERCQIE0giIiIiIiIShAkkERERERERCeLp6ADI8Vqa29C... | 0 |
math | kindergarten | subtraction-sentences-up-to-10-which-model-matches | true | false |
Which picture shows 8 − 4 = 4? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAagAAABKCAYAAADuScD9AAASY0lEQVR4nO3dfXAcd33H8ffuPZ9Oz7IkW44fY8cQsOM0sSzihk7CUwgUSkw708RGmTJAGcIwUJg+MOWpLZ2BDpnSmVJaGiXGBNqEkAcnQHhowEGykzgx2NiWLUeW5VjPp9M96G73drd/nHXSne5O9yidJ9/XTMazt0+/T2b0/d3t77e7imVZ1ogG5yIQNCBuIYQQQiw7uwK1NtjihTYnKCMxyzo6s9LNEkIIIeZ11oH9bCSxsNoJ19Ukei8hhBBiuQUNOBOGyxr... | 0 |
science | grade-5 | identify-ecosystems | true | false | Select the prairie grassland ecosystem. This ecosystem has:
long, cold winters and short, cold summers
mostly small plants
soil that is frozen year-round This ecosystem has:
hot summers and cool winters
a medium amount of rain
soil that is rich in nutrients This ecosystem has:
year-round rain and warm temperatures
soil... | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAp8AAACtCAYAAAD2xRSHAAEAAElEQVR4nOz9edRtaVnejf6eZnare5vd166idlFVFJRQUBQgCIISmpPgdzLEPggD0aGJw8TYkGAzwkm+fEoGMZ/REHVEQRqTmE+jmEQ0BkFQEEEoukLa6nft7u1WN7unOX88z5zvencVNjlROal1FWusvbrZrpd1zeu+r+sWHzzw/pYhjBVrrLHGGmusscYaa6zxl4KZhU8vQEyN92viucYaa6yxxhprrLHGXzZmFoT33v91b8gaa6yxxhprrLHGGo8O6NUH//o... | 0 |
math | kindergarten | triangles | true | false | Which shape is a triangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJAAAACVCAYAAAC3i3MLAAACX0lEQVR4nO3UPW6UVxSA4TPjnwJw6BJlAUBFzRa8kayKjWQNtK4c0se0NljCePRRfEJKg4L0jjKM9DzVvbrS0Sle3c2yLMvNw8zf9zN3u5nHZeC7TjczFyczL57M/HY+s7n5vCzvbg+9FsfozS8zp+/v18vv5zOvnq51wffc7WauP8388zDz1/3M9vZxfRAPP+LiZG1lZubjbma7+9cD/IhvrXxZZraHXYVjJyASAZEIiERAJAIiERCJgEgERCIgEgGRCIhEQCQ... | 2 |
science | grade-2 | identify-solids-and-liquids | true | false | Select the liquid. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKUAAADCCAYAAAAo2gI4AABJwElEQVR4nO29d3wc9Z3//5yZ7atd9W5ZbpJtueGGCzYGY2wInAk9lB8lAXIhkORyJLlcSMjdcXfcJVwSLveFBHIcIYE4BENCN80NDBbuVZZsyypW79Kutsx8fn+MZj1a7UoySLZM9vV47GNmP/OZz3z2M699t0+TSjuEmOoGj0ICCZxRdKlQ1gN1QUi1wLIUPV1OEDKBswWPAlPd+nm3eipdThAygbMJg38hcSpNPjtVSSCB+EiQMoExhwQpExhzSJAygTGHBCk... | 1 |
math | grade-1 | identify-faces-of-three-dimensional-shapes | false | true | Does this shape have a circle as a face? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEnCAYAAACT/zRUAAAd5ElEQVR4nO3dW4ykaXkY4Pev6vNhZncOyw7ssottiMmC2axDvEACN06i2I4iHCm2FCU3iSXLkWUJhwQucouEEEkukCIkI/kW7hCCi4hcBHk5mllsWCC7Jt4NA73LnKcPVV2nPxddXTN9mO6/pqv/+r9/nuemuuv41sxX0ttfve/3Znme5wEAAExEY9oBAABAnUiwAQBggiTYAAAwQRJsAACYIAk2AABMkAQbAAAmSIINAAATJMEGAIAJmpl2AKdl0Mrj1Y+vRfdqf+L... | [
"yes",
"no"
] | null | 1 |
math | grade-2 | equivalent-amounts-of-money-up-to-1-dollar | true | true | Look at these coins:Which group shows the same amount? | "iVBORw0KGgoAAAANSUhEUgAAAZsAAABNCAYAAABwiMl+AACch0lEQVR4nOy9d7hkV3Xm/Tuxcrh1c86xc05qSd1KKAshBBJ5bIPNYNLnPB6nmTH2eAx4nDBgjMhJEsqxpVZL6py7b6ebc6pbOZ/0/XHqliQQ0A1CAk+/z9NP31C36uy9z9lrr7Xe9S7BsiyLy7iMy7iMy7iMXyLEt/oCLuMyLuMyLuM/Py4bm8u4jMu4jMv4peOysbmMy7iMy7iMXzouG5vLuIzLuIzL+KXjsrG5jMu4jMu4jF865Lfywy3LwjRNRNG2eel0ivn5OaL... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAtQAAABxCAYAAAD1YzSEAADXfElEQVR4nOy9d3hd13Wn/Z56e0XvICoB9l4kiiJFSlZzt9zikkniFie2M85MJpmJ58vMxPGk2JNJJo7tJJa7ZatSjWqUKImk2AkSIEH0Xi6A2+tp3x8XhCRbjkiJKk7O+zx8QOAC95699zpnr733Wr8lABY2NjY2NjZvIJZlMV2A/gwkDdDtmcfGxubXGFkAnwStbqhQQcB2qG1sbGxs3mCm8xZHE2/1VdjY2Nhcfbb4QX6rL8LGxsbG5t8+fZni1yoV2j3FnR0... | 1 |
math | calculus | describe-linear-and-exponential-growth-and-decay | false | true | How does h(t) change over the interval from t=
–
3 to t=
–
1? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAABvjUlEQVR4nO39e3Qb93kn/r9BACTBK3gFKcqk7rxTtmzZlizFcqXajp24kZKunJxN1qmTrrO5bf5oT779dXO2OT4+OadN+o3XSdNsU9vZb7dpvLG9tWRakSNZkilLsmiJEu9X8SKJF5AgiMtgBoOZ3x8QKFGkJICaDwGQ79c5OQ5B4uGjGWLwxuDBZ0y6rusgIiIiIiJDpMS7ASIiIiKi5YQBm4iIiIjIQAzYREREREQGYsAmojmefvppvPHGGwt+79SpU3j44YcRDAY... | [
"h(t) decreases by 9",
"h(t) decreases by 6",
"h(t) increases by 6",
"h(t) decreases by 3"
] | null | 1 |
math | calculus | determine-continuity-using-graphs | false | true | Is f(x) continuous at x=5? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAAB5NUlEQVR4nO3de3yU5Z3//9dkZnJOSEgggWCCiIBgQEBEEATEqhVPoBZ1e7C1B62H2t1tt9vu9rftun7dtrZbq9Zqux629qAVT2BAlGNBiUQIJCAgh0CAnE+TZM4zvz9ug0RBErgvJkPez8djHpDJ3O98ct8z93zmznVftyMajUYRERERERFbJMS6ABERERGRM4kabBERERERG6nBFhERERGxkRpsEelmxYoVDB8+nHnz5gFw7bXX8vLLLx/zscFgkIsvvph33333dJY... | [
"yes",
"no"
] | null | 0 |
math | kindergarten | select-two-dimensional-shapes | true | false | Which shape is a hexagon? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAACjUlEQVR4nO3UP24dVRyG4d9c/ylCAg0C0UYClhAhsQWWwaZYBmyBAmUHISgtRlDZiaUYXw3FKBIFXcw70s3zNDNHp/mKV2dZ13W9upv57Xbm5jhzvw68t/Nl5snZzJePZj6/nFmu3q7r8+u9Z3HKnn08c/7ydjt8cTnz9UdbhfC+bo4zL97M/H438+vtzOH6frsQGQ/pydnW1MzM6+PM4fivC3hI75r6e5057DuFD4XQSAiNhNBICI2E0EgIjYTQSAiNhNBICI2... | 1 |
math | pre-k | compare-size-weight-and-capacity | true | false | Which bottle holds less? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANAAAADQCAYAAAB2pO90AAAis0lEQVR4nO2d2XNk13nYf+duvWEHZgaDmeFQnOEMSYWUQoVa6IhyMYodl60XpVxOKnmwq1L+B1J5TUWVV1eqkjy4IscppeJYrnISyRYlWY7kaKVs0qIoSiZnyFk4nAEGGACNpdHdt+928nC70d3A7e7bGzDL96tCoXF7uwDur79zvnPOd5TWWq96cK0CpRACjSAIHbAUTJrwZB5OOaBWa1q/tnvcpyUIDx6fmALrvUr8w2kHLhdiuwRBSKYUwtUy3PXg3QoYu0F... | 1 |
math | grade-7 | identify-trapezoids | false | true | Is this polygon a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABgCAYAAAAn1QU0AAAQRElEQVR4nO3de5CVd33H8fc5e/acPbAQyAYWSALBEEKJgIC7SVACuxC8xJiYVGMyatXGGbW1dqiZamubjn84MmbSminjhbE2ahOdKRC1XhphN5vbJLsYAlFKJBEBgXDZLOAue+5P/2A5u8dWJXB2z+39+ovz/EF+OXmenM/v9/s+318oCIIASZIkSUURLvUAJEmSpGpiwJYkSZKKyIAtSZIkFZEBW5IkSSoiA7aq0969sGdPqUchSZJqkAFb1enee2HRIrjlFoO2JEk... | [
"no",
"yes"
] | null | 1 |
math | grade-7 | apply-multiplication-and-division-rules | false | true | The number line shows an unknown number, s. Is – 2s positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAGLElEQVR4nO3dT2yTZQDH8d/b0T92zDFwEzWbiwoxZDqBrdtg6oyYYJZFNyDKhXCRBELCcSfjjYQLJziQcJHDBE2KCYZg/BPKBNfuDzYuTBShDhNxc0plY11LVw/LKpP9i7R92vX7Oe198h5+ydtuvz153uexEolEQkAO6+jokGVZ2rlzp+koyBCeOQAgmy0zHQB4WDdv3jQdARnGMwcAZLNFF+xYLKbe3l75/X6VlZUxcwQAGTAYiqrHP6qhWzGFb8dVUelQRaVTNXX... | [
"positive",
"negative"
] | null | 1 |
math | grade-5 | compare-decimals-using-grids | false | true | Which decimal is less than the one shown in this diagram? | "iVBORw0KGgoAAAANSUhEUgAAAJwAAACcCAYAAACKuMJNAAACHElEQVR4nO3awU1CQRhG0YehIkqgAre2QEG24NYKKMGWHqtnCKsR4yUj5+w0+Q2LmwmJ325d13WByMujPwDPZX/9w+F0ftTn4J/7ej8uy3L1womNwv72F2+vx7v+0Mfn2e0Et9tL81OH0323tw+Z73CkBEdKcKQER0pwpARHSnCkBEdKcKQER0pwpARHSnCkdtvi1zyJv7QtTcyTnuzWPImnIjhSgiMlOFKCIyU4UoIjJThSgiMlOFKCIyU4UoIjZZ5Ewjxp4tt6YvS... | [
"0.74",
"0.73",
"0.8",
"0.70"
] | null | 3 |
engineer | grade-6 | identify-laboratory-tools | true | false | Select the Erlenmeyer flask. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAPoAAAD6CAYAAACI7Fo9AABcpklEQVR4nO29ebQk2VXe++19TkRm3vnW1HP13JpnBEY8MG3gCQlkqdWtMhISy8IPZBAGzLKxeTzea4xttOy18LL8EBJ+WCAkdavoEhYYjGVwIxAgkNCAJCT1pB6qqmu+dcfMiDjn7PfHiZMxZOStW9XDvVk3vrXy5hSZNzIifvHtvc8QQKtWrVq1atWqVatWrVq1atWqVatWrVq1atWqVatWrVq1atWqVatWrVq1atWqVatWrVq1atWqVatWrVq1atWqVatWrVq... | 2 |
math | grade-2 | read-a-calendar-ii | false | true | What date is 3 weeks after July 2? | "iVBORw0KGgoAAAANSUhEUgAAAssAAAGvCAYAAACthZgKAABZaElEQVR4nO3df3yN9f/H8efOZn7FmP3y2xhGrZmRH7NWomGk5OMTn0ohFKqPIp+V0rfkg+pT6lP6PZQfIW1IY3w2tlgY81sYjeY3kxlmzvn+oZ2s7eKMnZ1tHvfbzQ3nus6113ntOtd5nut6X9flZLFYLDH7E/Xjr+t0MOuYAAAAcPPq3+albg3b6wHfTo4uBTfBKTptjSXt7G/6R4uucq1QQRZZHF0TAABAmeYkJ+VcuqRvdqyQb7U66t041NEl4QaZfvx1nQa0vF8... | [
"July 23",
"July 16"
] | null | 0 |
science | grade-5 | predict-temperature-changes | true | true | Two identical blocks are heated to different temperatures. The blocks are placed so that they touch, and heat begins to flow between the blocks. The pair of blocks is insulated, so no energy escapes. Later, the temperature of each block is measured again. Which pair of temperatures is possible? | "iVBORw0KGgoAAAANSUhEUgAAAQQAAACgCAYAAADq8hJGAAAYvElEQVR4nO3daXAk533f8W/3zPRMz4UZYAAs7t0ld7nk8liSoixSpCiSokjGlBgrlhmponJFlSo7lUollUMvTCWVShS7nFRStlNlx2U7khzLlCxT0oqReIiXKPMQl7K5lkRqd7G7OAf33Pf0kRcNNIgdXLsLYAbA/1O1JarRM3gwT8+vu//9dD+Kbds2QggBqM1ugBCidUggCCFcEghCCJcEghDCJYEghHBJIAghXBIIQgiXBIIQwiWBIIRwSSAIIVwSCEIIlwSCEMI... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAiAAAAC4CAYAAADaI1cbAAAkT0lEQVR4nO3dfZAkZ30f8G/3zPRMz9vO7M7u3r7vne5OpzuBDkkITkjICAmJWEI2Ccg4ISmwqwzlIkklGFcsnKQSsMtOJTFOlR1XmQC2FSBCgHQGIUBCSAgdOgE6hCROd7e3b7Mvt7vz/j7d/eSPnp29vdmXubvZ7p7Z76dKtTC3O/vsPs/+5tvdv35GAiBARARACIGFCnC2AGR1QGN1IKIWcUtAyAUc8AP9CiCBAYSIahbKAi9m7B4FEXW6t4UBt92DICLnOFM... | 2 |
science | grade-8 | identify-and-compare-air-masses | false | true | Which specific humidity level was measured within the outlined area shown? The map below shows humidity in the lower atmosphere on August 1, 2016. The map shows specific humidity, a measurement of the amount of water vapor in the air. The outlined area shows an air mass that influenced weather in South America on that ... | "iVBORw0KGgoAAAANSUhEUgAAAY0AAAHKCAYAAAD/+hcFAAEAAElEQVR4nOy9d3hk2V2n/55zc+WkUmxJ3eo83T3ZM+McxhEMtjHYBmPASzZpDV52WdICC6zZZcn8yMnYYBtjA07jdRqHmXGc1D0znZNyrJxu+P1xS1KVVKWsbnWP3ufR062qW7dularO53wzbI4IkNzkOXbZZZdddrlBeQHwvS1u/yngi8AngJfUb4sB/wz8A3ALvni8H/j5JY/9s+240F122WWXXa4fKfzFfQL4nSX3fQ/wIHAUeA0wDfQCQ8AvAG8GvgXoA6aAYeB... | [
"19 grams of water vapor per kilogram of air",
"12 grams of water vapor per kilogram of air",
"11 grams of water vapor per kilogram of air"
] | null | 0 |
math | precalculus | determine-continuity-using-graphs | false | true | Is f(x) continuous at x=4? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAAB/V0lEQVR4nO3dfWBU9Z0v/veZp0ySSZiQhCQC4UEeNBiiICoIotWqq1UL1tX2KmtX3Wu31ra37b376629t1vq7W7r9lat29vWrWJ7t1e2tgoaEQWBQhUJkECgEpGEBPI0ZGYyz+fx90eYMQMJZMj55swk79c/kMmcz3xyzsyZz3znc75fyTAMA0REREREZAqb1QkQEREREY0nLLCJiIiIiEzEApuIiIiIyEQssIkozZYtWzBz5kzcfvvtAIA77rgDf/jDH4a8r6IouOa... | [
"no",
"yes"
] | null | 1 |
math | grade-8 | identify-congruent-figures | false | true | Are these shapes congruent? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEdCAYAAAA2HhCfAAA/y0lEQVR4nO3deVxU9f4G8GcYkFXBDZdMURTcLUkll1zyuoGZCgpYCaih4hrKJqiAgivuW17FXdnUEhdwK6+lYWKy5Zr6E4PUFBRwQGB+f4xMkJaDDJ45w/N+vXjlHL4zfOaC3afD+T5HIpfL5SAiIiIiIrXQEXoAIiIiIiJtwoBNRERERKRGDNhERERERGrEgE1ERNXKmjVrMGDAgHLHxo8fj4EDB5Y75urqCm9v77c5GhFpCV2hByAiInqbGjZsiAcPHigfP3z4ED/... | [
"no",
"yes"
] | null | 1 |
math | pre-k | circles | true | false | Which shape is a circle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACbCAYAAACao4KyAAACj0lEQVR4nO3ZPW4VZxiG4fcc/xT8pUuUkiLACsJusjiW4xWEEIkyTmtjSzg+mhQjJKfG3INOrqua0dc8xa35itkty7Jc3s38eTtzfZi5Xwa+2ulu5vnJzC9PZn46n9ldfl6Wi6utZ3HM3r6YOf1wu778fD7z+ulaIXyt68PM+5uZv+5m/rid2V/drwci4zE9P1mbmpn5dJjZHx4cwGP60tQ/y8x+2yn8XwiNhNBICI2E0EgIjYTQSAiNxOnWAx767ePvW084Gu9... | 1 |
math | grade-4 | scalene-isosceles-and-equilateral-triangles | false | true | What kind of triangle is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADOCAYAAAAEw3WqAAAjfUlEQVR4nO3dfXSTdZ738U9MS4vkzLTTsdubk7132SIdsSpa0Sn4UBGtjC4KCrUMlAdnnDMMnDPgoIO4h5XxWHB8Al3k7EEoKEmhINZFoNAioDwVK4gIWwQ6QIu1hQZoaJumSe4/SnsPI89NciXN+/XnleS6Pgf/+fTn7/r+TD6fzycAAAAAfnGd0QEAAACAzoSCDUN99913mjFjhnr16qWf/OQnOnbsmNGRAAAAOiTK6ACIPMePH5fNZlN+fr7KysrO+8xsNhuUCgA... | [
"isosceles but not equilateral",
"scalene",
"equilateral"
] | null | 0 |
math | grade-7 | identify-trapezoids | false | true | Is this polygon a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAB+CAYAAAAeCWbfAAAWmklEQVR4nO3dfXzP9f7H8ef3a75mhm3GXF/T5GoU55yEkYtQzEURSjo4JetCv+p3Os7vdHVOR3QpObkowlwU06WQrFSnEHIRcjlaw2YbZpuZfX9/sI/vFBu+2/t78bjfbt16f95t9qyb3Tz36vt9v21Op9MpAAAAAG5hNx0AAAAA8CUUbAAAAMCNKNgAAACAG1GwAQAAADeiYOPa7dolJSaaTgEAAOARKNi4dn/9q9S0qTRoEEUbAAD4PQo2rl2/flJEhLRkidS8OUU... | [
"no",
"yes"
] | null | 0 |
math | algebra-1 | identify-linear-and-exponential-functions-from-tables | false | true | Is this function linear or exponential? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEqCAYAAAAvYSeKAAAZhUlEQVR4nO3dbZBVhYHm8cfuTqOZaHiT0MAo+I6KqJC4yzKgoyZTuJYaFct1kmU1iJswmtFBXUzEXVkFZKNAJIpVjA4rpgQjIOkMjIWlGBdHZwfwdXTHVpIKAo0CNogCzX4atlgzCvFcD33v7/ftntuc8/DtX6fOvfegzPh3u9MBPDFsYs5/5kdlz9gnu8c+W/YEAABKUlf2AAAAqCYCGwAACiSwAQCgQAIbAAAKJLABAKBAAhsAAAoksAEAoEACGwAACiSwAQCgQAI... | [
"exponential",
"linear"
] | null | 0 |
math | grade-6 | which-is-the-better-coupon | true | false | Which coupon will save Paula more money on a set of dishes originally priced at $47.70? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAASYAAACRCAYAAABufBWjAAAmCElEQVR4nO2de3QT173vvzN6S8aWhV/Y+AG2AduAHTBOIDwMTYIbQgtpQm8pbUh7Fm1P0lW6bktaclYSek7Tpum54fQmJyT39IQ2bdqSNOTZk6Q0NgmPxOHlGIuXDfITGxm/JVmvmfvHWLLGM7Kl8dge2fuzlpetPTM/bcmar/b+7d/+/SiWZdl2D1DvBPr9gI8FgUAgTCpqCpilAvKNQKoWoNrdLFvdN9XdIhAIBI5b4wH1FSf3YI4WWGjiVItAIBAmk34/cMk... | 0 |
math | algebra-1 | identify-functions-vertical-line-test | true | false | Which of these relations is a function? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAATIAAAE3CAYAAAApC812AAAkEUlEQVR4nO3de3hU5Z0H8O+ZZG65DteJlqBoIBGQhEshsVwKskpAQLwsbrtou6IWd3WxVmwXiyi1WmERV5G27iOIumJFRFDJ1i0it4RLYOQSJ4AIUiEXgclt7jNn/zhwZoZLIGQmM++Z7+d5eMgMmZOX5OQ77/ue97w/SZZlucYLHHICTQHAL4OIKKGlSkBmCtA7DbAaAKnGI8vbG+PdLCKiKzMsC0g96FQeXGUA8tOVlCMiSmRNAaC6BTjhBQ44AV2jX/kHhhg... | 2 |
math | pre-k | what-comes-next | true | true | What shape comes next? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAD1CAYAAAAlI4EUAAAaUklEQVR4nO3dfYwc9X3H8c/s853Xd8cZP5Ngx7FIAwa1IbKApIQIUCKFJOKPJIJErZSWEtQmUgppK0FjkvzRECORpFKBNFIbCKREClJNBcUWjhOKYx4SgbENOHd2gu98d7bPZ9/e7dPMTv9Y752Pe+Bmb+fpt++XZKHzzs787qsvOx//9jczluu6rgAAAAAYIRH2AAAAAAC0DgEfAAAAMAgBHwAAADAIAR8AAAAwCAEfAAAAMAgBHwAAADAIAR8AAAAwCAEfAAAAMAg... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAz4AAAD1CAYAAACRDCAyAAAgTElEQVR4nO3dfYwc9Z3n8U91Vz/MuD0z2NieB9jYMT7nAYNywFkJyRkigkCCZC9/7GZxojsptz42yu5Ke5C9k8jFTvLHLQEpm0Q6cC7S3YJNLpES6ewTHEY4znJ4jSEoGGNs47E3eB48Y8+Mp3umn6q67o92z3g8D57q7qrqrn6/JP4Yd/WvfvPlq+n6dP2qynAcxxEAAACAUDAMI+gpNKRI0BMAAAAAAK8RfAAAAACEHsEHAAAAQOgRfAAAAACEHsEHAAAAQOg... | 0 |
math | grade-1 | count-sides-and-corners | true | false | Which shape has 3 sides? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAGdUlEQVR4nO2dTW9aRxSGD/5qlSatumnVRaRs2v6E/ID8cUCyJZDAC1Y0tRSvcBe42NeB5JLr6eLajeMvuDBz5ny8jxQpCCzf2E+4w5n3zGmFEMJZSfT3nKioiL4EAmBr9lpEr3aJfn9B9OsBUevscwj9y9yXBSzz9keivffz+sFvB0R//lBbCMC2FBXR+CPRpCT6a060c/mlfgKSgZi82q2dIiK6qoh2qjtPABCTW6eWgWgn76UAL0A0wAJEAyxANMACRAMsQDT... | 0 |
math | pre-k | count-scattered-shapes-up-to-5 | false | true | How many shapes are there? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAC0CAYAAADhJ1jdAAAUnElEQVR4nO3d72+d5X3H8c85PolP4uT4RxLHJz7HcZyE1EBt8gtCGJRK03iywqTtQTtp08RWof4DmzRNVKvYVB6MJ51WITY0wVqVatVYKIgs1UJLwCYEsjACCwGTNJCERJhgYpM4ts8eXD0iNJD4+NzXff243y8paqDl3F9fDs3nnHzu752r1Wo1AQAAAIhC3vUAAAAAAJJDwAcAAAAiQsAHAAAAIkLABwAAACJCwAcAAAAiQsAHAAAAIkLABwAAACJCwAcAAAAiQsA... | [
"1",
"3",
"2",
"4"
] | null | 1 |
science | grade-4 | identify-magnets-that-attract-or-repel | false | true | Two magnets are placed as shown. Will these magnets attract or repel each other? | "iVBORw0KGgoAAAANSUhEUgAAALYAAAHmCAYAAADeCXRHAAAlaklEQVR4nO3de3hU5b0v8O/cb7lO7lcgJETuF0VBQEChViyi8QKnaCvWbd1Vj7rPaavdp6fd+/To7sXa063d1kuteIFqQWmr1iooKKAQwADhkoTcyD2ZJJPMZK6Zdf4IxITcZs2smfedN7/P8/goOLPWT55vXn/vWu96l0qSJAlENm/AjQ5XAzo9LejyNKPL04pOd/OFX7fA5m4a8Z2iwzsBnxEGgxoGgwoGoxp6g2rYr81mNZKsWiRbtbCmaKHVMviPEwD9sQWh3nE... | [
"repel",
"attract"
] | null | 0 |
technology | grade | icons | false | true | This is a(n old) logo of which famous app or program? | "iVBORw0KGgoAAAANSUhEUgAAARgAAAEsCAYAAAAYZaw3AABA3klEQVR4nO29+VdbV7bv+93aewtJyAiw6BtjGoMBAzbu7cRxnEqqUrdybtWpc1/dMd775f1t941R95yqyrlJnSSVlJ04cYPB2PR9K9EjhCSEJKS9td4PknCHbUBzS1vS+oyRERvwpFv67u+aa805hf6+MXA4HI4WGNL9BXA4nOxFSvcXwNEPoWCABVwuyJEwmHsLzL0FuyShBuyt/8axF8aGxYK8wiKE8q2QCotgLSyCKElCCr90jk7hApOjqIrC/J5tBJYcqFldQf6... | [
"Line",
"Steam",
"Airbnb",
"Autocad IPServer"
] | null | 2 |
math | grade-3 | match-fractions-to-models-halves-thirds-and-fourths | true | false | Look at the colored part of each shape. Which shape shows one-third? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHwAAAB8CAYAAACrHtS+AAATzElEQVR4nO2deZQU5bmHn6peqreZ7tnZhAFkCYqExWFxi7kqBjVCRAWMRhMvmhtPDObexJPce645Ocnl5MaoSUxMTOJyVVTUJCpEY9SEIMuwKCCYgYGZYRmmp2d6enrfqur+UTMjCBqoru7qaeY5p88wXV3v92N+/dX2ft/7Caqqqh1paI5DRIasyhAlhFWAMgtMcEGdHYSOlKo2hs2WNUQhmF0O1n1x7Zfhdpjk1r4NQ5QOERmaYnA0DXvjIIaz2oYhs0uTMov... | 1 |
science | grade-5 | identify-mammals-birds-fish-reptiles-and-amphibians | true | false | Select the fish. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK8AAADMCAYAAAAF8vOBAADU80lEQVR4nOz9Waxta3bfh/3G18xmrbXb095zu6pb99atKlZDlUiJlChZVBRZttwEdpDIAozIL3ES5DlBEiRAgCBA7LQPdmTFgW01gSRboWxBEimKVJEiKdJVZBVZDVl9c2/d7nS7W2vNOb9m5GF8e99yQAMMz4sDcAOFOrXrnL3XmutrxviPfyOfPVd9fQ0Hnj/4+oOv/0Z+XRb46hbeXuAkwE8c2/fdHyzcP/j6b/rXgYfX1/bnq/L+990fLNw/+Pr/h6/rdZr... | 1 |
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? | "iVBORw0KGgoAAAANSUhEUgAAAmwAAAGZCAYAAAA0Im0SAACEq0lEQVR4nO3deVxU9f4/8NeZYRmGGUBW2dxlTHMdck9RW69g3dttESu79ya0eLsV1K1bXenWre5NrHtbwX4tZqDlbRGyvpo5WmrmoGC5DLiLgxvrAAPDzHx+f+AcZxiWAWbjzPv5yGDO+jkD8+Z9PtvhGGMMPqy6+hJOnjyF1tYWcBzn6eIQAgDw9/dHdHQMhgwZ4umiEAGj+Ee8EcW/zvl5ugCeZDabUVVVBcbMCAgI8HRxCLFRXX0JsbGx8Pf393RRiABR/CPejOK... | [
"sample A",
"sample B",
"neither; the samples have the same temperature"
] | null | 0 |
science | grade-5 | identify-earths-land-features-using-photographs | true | false | A canyon is a deep and narrow landform. A canyon has steep cliffs on both sides. Sometimes, a canyon has a river running through it. Select the canyon. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOEAAAC0CAYAAABi8Es+AAEAAElEQVR4nGz9SbNtyZLfh/08Yq219+lun/3rq0EVWAAIFCAaaKSZjDKThIE00kgfQF9HQ40101w0wUiZaARI0IS+iOrwql6XL/u8zel3s1ZEuAbuHmvfom5V5rt5zt6rifDm739vQv6v/+/faEKoNAAQsf8BqgiDCiqNpAkVARTQ/ndBEQQQ+43YT5P6/6J+TQG17wmKEt+nfxdRVBPxAPZTsVsmEBVEodmXUL+2qP2gqUBqfn8lITQRoJ08ZTyx/awJiCaSgGp... | 2 |
science | grade-2 | read-a-thermometer | false | true | Select the temperature shown by this thermometer. | "iVBORw0KGgoAAAANSUhEUgAAAI4AAAHPCAYAAACFjuJ1AAAgcUlEQVR4nO2df2wb+XnmH/6QZf3g2A66li3y6gD1akUg6W6yXjLX3Wtri0IXOcBectu0aMWVkLSXrmQ2yAXpaqW0hytWstyiuR+0ddjDBZEi/dXGw6hACzdi5KbrLUDGyK4DFMNTvUHuQMp2Nt7eDuXIFiny/tBwVpRIW5zRDGf0vh+AAJcccka7zz7zvMP5vq/j3r17ZTBMgzibfQCMPWHhMJpg4TCaYOEwmnDXerFQKECWZbOPhbEobW1taG9vr3qNHYfRBAuH0QQ... | [
"5°C",
"0°C",
"20°C"
] | null | 2 |
math | grade-3 | which-picture-shows-more | true | false | Which is more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAlYAAAGqCAYAAADJHQrgAAEAAElEQVR4nOz9PYwkS5bvif3e24eFBYklzAACdKNUJhCEp+ZBgchYqWK0aFDJWqmSUmdr2VoVpVsjTV2JdbWb2mRLkyWxUiBxQ3tR0kYAFMK1dPADsNLcARIwwy753Ljch6FwzD8iq253z5veN6+LcYCqiPRwN3e3z2P/8z/n/Kt//Md//Mfuv4P/+7+D//bfw3//j5zlLGc5y1nOcpaznOXPkH/zr+C/+M/gf/E/gv/Zfw7/qvv//OM//p//m3/pxzrLWc5ylrO... | 0 |
math | grade-2 | which-bar-graph-is-correct | true | false |
Nicole went on a shopping spree at the mall and bought six hats. She bought more pairs of pants and coats than hats. She bought fewer pairs of shorts than hats. Nicole made a bar graph of the clothes she bought. Which is her bar graph? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAdkAAAEOCAYAAADFfG2VAACIyElEQVR4nOz9d7xldX3o/78+ZbVdTj/TZxgYEAZRulIsQa4QFUs0JLm5N3qDIagxphijieV6SUz0auJPowYlfiPKVVMsIcZGiAioqHSGOswwvZ2+6yqftT6/P9aeAygiI8w+c2Y+z8fjPGZ2XZ+15sx+7097v4W11u5J4aEONHMwFsdxHMdxDpAWUFdwXAWW+uV9Yk9i7Y8aC9swx3EcxzmcPHcAlvigN3bKO5b7cHy1jMKO4ziO4xyYZg4PtGF3Cg92yiArG6Z... | 0 |
math | kindergarten | one-less-with-pictures-up-to-5 | true | true | Count the spiders in this group. Which group has one less than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABmCAYAAADxjOYpAAA3P0lEQVR4nO3deXwb9Z3/8dfI1mlJtiVbviTfR+Ijd4iTQCChJEALdIH2xxa63W7p9tp2j+623f392u722G0X+vu127LdbemxLbR0C6VAW24KAXKQy4ntOPEhX7Jsy5Zsybola35/KAnNkoQATuKQz/MfYmc0M5rJ+zEfvjPz/SiqqqoIIYQQQgghFoTmQu+AEEIIIYQQbydSYAshhBBCCLGApMAWQgghhBBiAUmBLYQQQgghxAKSAlsIIYQQQogFJAW2EEIIIYQQC0g... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA7sAAAB+CAYAAADlVwZsAABmmUlEQVR4nO3deXxbd53v/9eRtVuybMnyKu9b4iV7mrVpm+4sLdDCMKUzDEMLAwzMnQ2Y+7swCzDDNvfCQJm5UJY7lKVDC92GLumaNvse23FiW/Imb5IlW5K1WtL5/SEnIWRp2qaJk3yejwePhEbWOdLxR3p/zvme71cBVIQQQgghhBAXhKqqTKSgPwaRDKQlbQtxUWgVsOZBkxlK9aAgza4QQgghhBAXzERSZXf4Uu+FEFe3NQWgvdQ7IYQQQgghxJWkL5b7s1w... | 1 |
math | grade-2 | even-or-odd | false | true | Is the number of hearts even or odd? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAClCAYAAABm8IozAAAPUklEQVR4nO3dP2zc9f3H8Vd+6kAW7jK2IvI5YxnsKEsRlWJLSDAgxR1CJ4TdP6zEMLTbXTp1KUkYQwsXdSNDGFiQIvkilaYLwgzpGB9KlY62WcL2/Q2RjWhV+g58/LePh3RDIt/3vn6eT3pZOn/vRNd1XQAAgCb+76BPAAAAjhMDGwAAGjKwAQCgIQMbAAAaMrABAKAhAxsAABoysAEAoCEDGwAAGjKwAQCgIQMbAAAaMrABAKAhAxsAABoysAEAoCEDGwAAGjKwAQC... | [
"odd",
"even"
] | null | 0 |
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