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 | represent-numbers-with-pictures-up-to-3 | true | false | Which shows 2? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAYbElEQVR4nO3deXCc9YHm8e/bp9St1n1ah2VLsiMbMDjcDGCbgDETYAdCsmGYENitSTabyiTZzTE7tTu7M0URUjW7MzvU7mRnk0B2MhmWsKFgCQyZLBACcQAbH5AgX7KtqyW1Dqullvr87R9tSZbVklrg5m1Jz6fKJavft/t9u8qPf+/9WMYYE4zBsQiEk5AwiEiOuCwIOKHNBzUesIJRY94Ys3u1RNaeq4rBdTSS/qXOA5v96XSKSG6Ek9AxAX0xOBIBx1giPUH... | 1 |
math | grade-8 | parts-of-a-circle | false | true | What is K? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADICAYAAACdx5VnAAAkfElEQVR4nO3dd3hUZaLH8d+kTColBEKVEBJaQEJHCGAoiaJSrmAFC0XYXfWCu8Kq16vedV1XV/cuKq4oKmBZsCxNWAQhQUoWQcAAAUIJIAQSSMFU0ub+ARyTS1Mp75nJ9/M8PM9533Mm80uYP355884Zh8vlcgkAAACAR/AyHQAAAADAlUPBBwAAADwIBR8AAADwIF4Oh0NJSUnnnOjdu7caN258zvyBAwfkcDj01ltvaebMmXI4HCovL7/qQUeOHKlBgwZd1tfYsGG... | [
"diameter",
"center",
"chord"
] | null | 1 |
math | grade-7 | rational-numbers-find-the-sign | false | true | The number line shows an unknown number, a. Is a positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAlwAAAApCAYAAADgbPfrAAAGX0lEQVR4nO3dTWwU5wHG8WcMu3b8EePwFRC4NFKTYqGAwSw2QYnVpqpiCzWLkCqkilpCQoWi0kMrq+TSg+WUqOXQQgUSB5cqrk9rJFqnaQ7xQtPsrlnsjRxvkqpgQdyqOFREwV7ba5ge1rvGAX9s8Ozrwf/faedD1mPN5Zl33nnHsm3bFgC4SGtrqyzL0r59+0xHQY5wzeF2S00HAIBs3bhxw3QE5BjXHG4358KVTCYVjUYVDoe1atUq7jIMaIl36A8fvaWewX9Kkra... | [
"negative",
"positive"
] | null | 0 |
math | grade-3 | reading-schedules | false | true | Look at the following schedule: When does the town hall meeting begin? | "iVBORw0KGgoAAAANSUhEUgAAAWwAAAESCAYAAADZt+8IAACrk0lEQVR4nOydd1RUxxfHvwtLR3oRUZAqIEpXUaSIigp2QRTRoBFssfegsWvQWII1lliiiBTBjkFFxS4CVkBAQFDpRXqb3x+E9/Oxu7A0leR9ztlz9s3cmblzd3felLvvslx39iRgYGBgYPjuYQPAjHGLv7UeDAwMDAxNIPCtFWBgYGBg4A9mwGZgYGDoIDADNgMDA0MHgRmwGRgYGDoIzIDNwMDA0EFgBmwGBgaGDgIzYH9FTu2+ABeLRbh27u63VoWhg7D3l9PY+8t... | [
"12:55 P.M.",
"1:40 P.M.",
"7:20 P.M.",
"6:05 P.M."
] | null | 0 |
math | grade-7 | model-and-solve-equations-using-algebra-tiles | true | false | Which set of algebra tiles represents the equation 5x–7= – 17? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAYIAAAB6CAYAAACyTFRJAAAK/UlEQVR4nO3dQWyT5x3H8d9rO3FKgklLsxFaRw3TYKPbErWbgr11rFDSE9M2ZYdV47TDKk3tpiK0wzohOlVIpHSXnXYY27QjyYFu2tQpiMAUa5UGYyqjtKBm9qGJ4RARx6kd+313SElBRa4N7/s67/N8PxICm8Rf8z7v639e2yGO53neXFW6WpYW61LNEwDAYAlH2hiXPr9B+myn5MxVPO+tm+2+WwCAdhhJSYn3yqsX+julHd2rUwIAYK7FunRlSfqgKr1blmI... | 1 |
math | grade-2 | skip-counting-stories | false | true | Each shelf has 5 belts. How many belts are on 5 shelves? | "iVBORw0KGgoAAAANSUhEUgAAAVcAAADDCAYAAAA2sVL5AAAjVklEQVR4nO3deVxU9f7H8dewyyqgAq4gbrhc0FzIJTFzw70UMVOvW1mpqFlezShCzZ+pAWpamZqm5ZLidccNcktvLty0RBH3K5KKgLLoAL8/iMkRVJY5HBk/z8eDx4M5c+acz8Gvb758z/LV5Cbm5iLEM27lm1EADP66s8qVCPF0K9+MwkTtIoQQwhiVSbje0ebicSyVprFp3NFKR1k8+6TNitIqdbhG3n5AyJXMJzbA6FQtF7NyOHkvm2Hx6aXdpRClIm1WlIVShev... | [
"30",
"25",
"40",
"35"
] | null | 1 |
math | grade-5 | identify-parallelograms | false | true | Is this quadrilateral a parallelogram? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEOCAYAAACzXGCqAAAgQ0lEQVR4nO3deZzU9Z3n8XdVVx/0Vd30AU3T0HTTByLEA1CDYjxGRoyKDqioIOhsJptrJvFIPFA8k5ncM8nOzO5EETTGbDbJbHbNI9e4aqJRURRE+oCmuY+m7/us+aPdX1dVS3VXd1V/f7+q1/Ov3+8RwnySR/54+3rUVLl8Pp9PAAAAACLCbfoAAAAAIJYwsAEAAIAIYmADAAAAEcTABgAAACKIgQ0AAABEEAMbAAAAiCAGNgAAABBBHtMHYHxqW3eouvVt7Wp8VVm... | [
"yes",
"no"
] | null | 0 |
math | grade-3 | fractions-of-a-group-unit-fractions | false | true | What fraction of the shapes are circles? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABKCAYAAACB4iNkAAAKvklEQVR4nO3dTWzT9x3H8U8TOw82dmznoVUewF4QlJgdmAYh2hAp0orUadqBhnKsVrUHuAxBewWuYzQ9bDmsD+c24bpKdBLNgY4QDtW02LSMNK7iRMxJbMeJ82Qn2SEklFJGiP/2zw7v1zXx35+f7cNHP33/v/8Lq6urqwIAAABgiTLTAQAAAIDthIINAAAAWIiCDQAAAFjIZjoAnk14YkCSlF5KSZKcFW5JUlv9YWOZAAAA8JClBfv0x/f1r+8XrbxkTg74q/SXP7x... | [
"1/3",
"1/4",
"1/8",
"1/6"
] | null | 0 |
math | grade-4 | compare-decimals-using-models | false | true | Compare 0.85 and 0.89. Use the models to help. 0.85 ?0.89 | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC0CAYAAACuelsNAAALfUlEQVR4nO3cfWiVhdvA8WuyysrBKu3VxN4YksogXWiojAqpMKIoA6mWgTB6I7AXyiDSCMwQIVgxxBH+M6hBWCJFL6MiWhgbUbKQSFNIpdJwWL50P388/vb8XMrT1nV2jjufD/iHx/s6576364+vt/esKYqiCAAAIMW4cp8AAACMJQIbAAASCWwAAEgksAEAIJHABgCARAIbAAASCWwAAEgksAEAIJHABgCARLX/ZrihtSfrPBgj+tuayvK5dpGhyrWLAOAONgAAJPp... | [
"=",
"<",
">"
] | null | 1 |
science | grade-4 | animal-adaptations-beaks-mouths-and-necks | true | true | Tamanduas eat insects such as ants and termites. These insects often live in holes called burrows. The tamandua's mouth is adapted to get insects out of burrows. Which animal's mouth is also adapted to get insects out of burrows? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEKCAYAAABnkCFsAAEAAElEQVR4nOydebhcVZX2f2vvc6rufDMHMjBkgkAgEJmHSAQkgCIzBFQmAUFmmaRbbMAGukGwRWRSJAIKHQUlqM2oQEAIJBgGQYYkkJHMuWNVnbP3+v7Ypyq5IZAbCKB+9T5Pntxbw6l99tmn7rvWfte7RFU1TVO891RRRRVVVFFFFVVUUUUV/5wwxhBFEZIkiVbJfRVVVFFFFVVUUUUVVfzzwxiDqZL7Kqqooooqqqiiiiqq+NeA9x7zWQ+iiiqqqKKKKqqooooqqth... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA88AAAEKCAYAAAAsMWftAAEAAElEQVR4nOy9d7wkRd39/66q7pmb8717N+ecF5awxCUnUXIykQVREBExPBhQQVEMiCigEkRBJAtIzmnzsjmHuzfnOKG7qn5/VM/sLqIsyiPPz++c1+uyu3Nneqqrq4c5dc7nfIS11oZhiDGGHHLIIYcccsghhxxyyOH/n5BS4nkeQoiPeig55PBfCZkjzjnkkEMOOeSQQw455PD/fxhjCMPwox5GDjn810LmiHMOOeSQQw455JBDDjn8dyD33T6HHP73ID/qAeS... | 0 |
math | grade-3 | certain-probable-unlikely-and-impossible | false | true | If you select a marble without looking, how likely is it that you will pick a black one? | "iVBORw0KGgoAAAANSUhEUgAAALEAAAB2CAYAAACHxHLJAAAxhUlEQVR4nO2deXRd13Xef+fe9/DwMAMkIAKgSImgTGqmJlqSrcm2qNpyayuxa9V26lU79dS0qeO4zepqXNmJ0thJnCZuajfJcpouD0ptNZKbZDWS7UqiYkuibZESBw0kSEkESBAz8IA33rP7xxnufQA4gCJAQnx7La7Le9+Ad8/57nf22Wfv7ygREWpWsxVswdn+ATWr2eu1GohrtuKtBuKarXhLnekv3Df+Cj8Z2s1Qfpyp0gyTpRlKukxnfTs9javoyrbT07CKKzo... | [
"probable",
"certain",
"unlikely",
"impossible"
] | null | 3 |
math | grade-7 | describe-a-sequence-of-transformations | false | true | What combination of transformations is shown below? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEyCAYAAADA5Kd8AABONElEQVR4nO3dd3xU95X//9cUzaghgbpGCIEAYzBdgCmOe+yN03vWPdm0LUmcrLPJZrMpm2x+6ck62eymbPJNcXad5hJc4wIY29hYBiNAognVEUK9T7tzf3+MNAIMqM3ojjTv5+ORx4PM3Hs/B0l+6MzhfM7HZpqmiYiIiIiIxITd6gBERERERGYTp9UBSGw19Rg8U+tnR62PPn+Y/3pbDrnps/dzlDlwmoEHP4gtdS4p5dfiLL8Oe1ap1WGJiIhIErONtIi0tLTg9Xq... | [
"rotation, then reflection",
"reflection, then translation",
"reflection, then rotation",
"rotation, then translation"
] | null | 2 |
math | grade-1 | rhombuses | true | false | Which shape is a rhombus? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAIvklEQVR4nO2d209TWRSHf6cXqVCg7QMTEk2a6OhgxAtKAHnQ6IM+aOJt5o90vCX6oA8afUBQFB0hEhSTJprg8EDpBSy25czDUdNB2p5yTs/ea+31PVFa2kX7td17nfXLsWzbtr98AxbXgUIVqNgQBM9ELKA7DPzeCfy2C7C+bNj2i7zqsgTOjPQAkQ/rzoX+XcDBLsdCQfBKoQosrAFL34D360AoX3GuEMkEP+kOO04BQLEKhKo1VwiCn/xwqmwDIbWlCKYgogm... | 0 |
math | grade-6 | changes-in-mean-median-mode-and-range | false | true | Look at this set of 7 numbers: How would the median change if the number 4 replaced one of the 6's in the set? | "iVBORw0KGgoAAAANSUhEUgAAANgAAAAkCAYAAADrcPSPAAAEgUlEQVR4nO3dXWxTZRzH8e85K2s7RteFvQDdcFCgOiZk4pIFFDAkmhhDCIkXgsHEG2OMF1yqN8ToHZEYoyYmRuOF0cgFCSQYIhEFjWM6x+Z42cYY3cZeyhisK33v8WJ0WTVeqM/T0+z8P0lvnibP7+S//HK6c05Tw7IsC4AMWAkgB8yvCCH+DQMwwfAArgdLlmVZVgJI2nhgQiw17vmimVYGKZcQqiXByoAp5RJCkySYZO0+CiGWqCyYckFDCE0sMO0+BiGWMimYEBp... | [
"decrease",
"increase",
"no change"
] | null | 2 |
science | grade-7 | compare-thermal-energy-transfers | false | true | Danielle was delivering two identical pizzas to a customer. While driving to the customer's house, Danielle put one of the pizza boxes on top of the other one. This table shows how the temperature of each pizza changed over 15minutes. During this time, thermal energy was transferred from ____ to ____. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAABfCAYAAACdpLOcAAAhOklEQVR4nO3de1xU1f438M9mroh4AzM7qAwoFxHRg2KoJUf9WXF4vTziWFn2816aTyBKpmmeBM2T8STo4el3Uruo5xFLzR7NV2riBYXURAMvoVwUU4+BiFwcGGZmP39Q6DjAzMDAwPh5v17zh3utvdd3rT3L+bL3mj2C5pBcBJEDUI44j6oTA+wdBlG7xnlEZBnl6Gp7h0DUICd7B0BERERERLbDBJ+IiIiIyIEwwSciIiIiciBM8ImIiIiIHAgTfCIiIiIiB8IEn4i... | [
"the surroundings . . . each pizza",
"each pizza . . . the surroundings"
] | null | 1 |
math | pre-k | represent-numbers-up-to-10 | true | false | Which group has 8 hearts? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAEcCAYAAAAV9AvgAAARdUlEQVR4nO3dwU7bV9rH8cd2DMbYcRb0fUUXYCmZGVgUkLoYNlapN11FpFcQuILAFeBcAc4VlF4BJLkALHVTjYTk0gWad1yJsCh9FRbQJgZjHM/CcWZScLD//+PnHB9/PxsKjY+ex3B+/nM4/p9Is9ls/nYpUqmK/NEQuWoKABhxJyKSjon8JSnyvyMikd9qzeY/frddFgDf/f2uyJ1/VVufTI6I/G28lUYAYMIfDZF/vhU5vhT5v6pI9Per1v8gbACYlo61skV... | 0 |
math | grade-5 | parallel-perpendicular-and-intersecting-lines | false | true | Are these lines intersecting? | "iVBORw0KGgoAAAANSUhEUgAAAEwAAAByCAYAAAD55zf2AAAHzklEQVR4nO2dbUyTVxTH/y3CugJptc6BK4sShgsvc444gTAdNAaMuC1RWGJgMVOTZZ8YLFmcS8aWiInZHLovy9TFt5gMMItvAWOKU5xFN9ZNq4tIGAndRAVXCSBSoPuAFx4sLX3a57nnFj3fkCfem1/+nP7vee451Xg8Hg+eRsChpd5AuAUZsP77A1RLhxRkwKrLDqDd0Um1fNBBp7DeAWxZ+xWaG/6k2kJQQQbMdbcXD/oeYscH34eV0siARekiAQDD7hGU5W+D9Uc... | [
"yes",
"no"
] | null | 1 |
math | grade-1 | more-less-and-equally-likely | false | true | If you select a marble without looking, which color are you more likely to pick? | "iVBORw0KGgoAAAANSUhEUgAAASYAAADECAYAAAAyP4znAABn40lEQVR4nO29eZhcxX33+6nT28z0zGhWtAxoJCGhBUksEmYfvWCD5BULHAFOuI4Jr8G8if3Y3FyDMa+TvIDgkguOnRASX9sBLoHEJkI4b4QcsLGEWLQEMLJ2tDIjiRnNopnp9Zyq+0fVOX26Z9EsPYtG/X0ecbq6zzlddZj69ve31K+EUkpRQAEFFDCOYI11BwoooIACclEgpgIKKGDcoUBMBRRQwLhDgZgKKKCAcYcCMRVQQAHjDgViKqCAAsYdCsRUQAEFjDsUiKm... | [
"pink",
"black",
"neither; black and pink are equally likely"
] | null | 0 |
math | grade-2 | identify-multiplication-sentences-for-equal-groups | false | true | Which expression describes the model? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADXCAYAAAAgGib5AAAxuUlEQVR4nO3da2wr530m8Gd4J0VKJEVRFCkd69hunZxTp82HhR24QV0HTZA2QdEEwbbeFG3tZot2jWa76GJRoDfsh97gtijqJFgnQdJtkyy62+02wCapi/iC2G6yLroB1reT2kfWkURR4kUS7+JlZj+MOWeG1IWXufP5AYRFWST/Y/MR/3rnnfcVJEmSQEREREREuvBYXQARERERkZuwwSYiIiIi0hEbbCIiIiIiHbHBJiIiIiLSERtsIiIiIiIdscEmIiIiItKRz+o... | [
"2×3",
"1×3"
] | null | 0 |
math | grade-4 | interpret-stem-and-leaf-plots | false | true | Carter found out the sizes of all the clubs at his school. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD+CAYAAAAAuXIHAAA1oUlEQVR4nO3deXRN5+LG8eckJzKQSQwhIYkaaqbmmUvMaoixl0tVcdFrblG3hrboSCtui4tSNbS0oakxIY15KKmxaBtKUNNNxJCSZP/+6Mr5NU0QdQaJ72etrBXv2e/ez94n1nrOzntOTIZhGAIAAABgFU6ODgAAAADkJRRsAAAAwIoo2AAAAIAVWQr23r171b17dxUvXlyurq4KCAhQ27ZttWnTpkwTgoODZTKZFBER8VAH6tevn0wmk0aMGGGN3Jl88sknMplMqla... | [
"0",
"3",
"2",
"1"
] | null | 0 |
math | grade-2 | greatest-and-least-word-problems-up-to-1000 | false | true | A mail carrier counted how many pieces of mail she delivered each day. On which day did the mail carrier deliver the fewest pieces of mail? | "iVBORw0KGgoAAAANSUhEUgAAAZwAAAC9CAYAAACHxsseAABO10lEQVR4nO3dZ1QUVx+A8WfpvQl2RFEiRCNij92oscSGNbGXxGAv0YjRWBILwa7EEmMU89qNgiWWWLBiF9FoRFFEgiig9L7M+2FlZKVIR+P9nbPnLDN37tyZXfY/t80oFrjaSwiCIAhCMdMC6PP5pNIuhyAIgvAftmv7MjRKuxCCIAjC+0EEHEEQBKFEiIAjCIIglAgRcEpZTLo2bYI/o1vIp8Ska5d2cQRBEIqNCDjF6K+ESqx6USvXQHIxqSwhaYbcSTHD9VmjEiy... | [
"Friday",
"Wednesday",
"Saturday",
"Thursday"
] | null | 1 |
math | grade-1 | more-less-and-equally-likely | false | true | On which color is the spinner more likely to land? | "iVBORw0KGgoAAAANSUhEUgAAAc8AAABkCAYAAADg1LuyAAAQoUlEQVR4nO3daXRUZZ4G8AdIIBupW5DCIEnI0oIs2eoGBAUlLCqgLI0NqRgJAZSj49YqizOjdPecaWlwxqM0PW0r2jKQBMcFtc+4JGGbHkGpqhggGrYQUggNWeqWpEhixmQ+II5jClJVufe+VcXz+5hz8/6f+vSc9659urq6ukBERERe6ys6ABERUbBheRIREfmI5UlEROSjMNEB/OF2X4TiUqA4FTgVBS5FAQAYJAlGSYJklCAZJERHR4kNSkREIalPIN8w1NDQAKv... | [
"neither; white and blue are equally likely",
"blue",
"white"
] | null | 2 |
math | grade-1 | square-corners | true | false | Which shape has 1 square corner? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAD5ElEQVR4nO3bO25UMRhA4TMzSQqeFSAWACyBjr2wXRaAxKMntEmIRMjoUlwiQkgyj+vrx+9zKluWpb/45M6LYRiG4wv4eg6na7gcMJvcwQIer+DVA3hxBIvjn8Pw4aT0WBa5t0/g4Mv5uHl5BG8ejgrNpna6hk8/4NsFfD6H5cnleCAyS9nj1WgK4GwNy/W1A7OUXZn6NcCy7CjWS0KzLAnNsiQ0y5LQLEtCsywJzbIkNMuS0CxLB/tevPj4LuUcVnmrZ+9ZPXu... | 0 |
math | grade-4 | identify-trapezoids | false | true | Is this quadrilateral a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC7CAYAAABfLOnYAAAXzElEQVR4nO3deXCc9X3H8c/zaCWtVrs68I18g218EivUgQpqXLATnDEz9bjpQN0CPsAyDQ3jlhwd6BDSDKHMkIZLwQco0ECgEzIhpOYILocdAthgGwsbg0+MsJFiW/exq6d/WNrf2mBbx+4+z7P7fv21z8xq+JFIyed5nu/v97Ecx3EEAAAAIClstxcAAAAAZBICNgAAAJBEBGwAAAAgiQjYAAAAQBIRsAEAAIAkImADAAAASUTABgAAAJIo4PYC+uP1XZ16+KU2FeR... | [
"no",
"yes"
] | null | 1 |
math | grade-5 | multiplication-input-output-tables-find-the-rule | false | true | What is the rule for this input/output table? | "iVBORw0KGgoAAAANSUhEUgAAAFgAAAB/CAYAAABrPAW6AAAKqUlEQVR4nO2de0xUVxrAf+MDH4UtW4Hx7bBIlEIV18eIChaBYkXWStddURpftVVpLJEiKVhWaEksRgxpjKsoq6xQXBvXVhQlK9RUt3XjxihW2i7ig4cyPKrVKfJw7v4xnXGpbApyjoI5v8Tc8dyZ7/vm58m9d+Z+c9RpKeM0egLRh2Fb+JOuonO8d55eT7qGpx0lWDJKsGSUYMkowZJRgiWjBEtGCZaMEiwZJVgyfbr06ohN4OoJO14VVI4gHAbCi9EwaiI8NxJMl+H... | [
"× 3",
"× 5",
"× 10",
"× 2"
] | null | 0 |
math | pre-k | select-solid-shapes | true | false | Which shape is a sphere? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAUq0lEQVR4nO2dWXBUV36Hf73c3tWrNoSEhHbQCtjg3YztTKom5XEe4jxkMqmal0lVUp48pFJ5SKpSrnLlIZsn8cw4XmbsMTaGoQJGbAZhQKxCtjAIxCKB9hbdUre6W61W7+o83L5NNxKgpW+fe2+f74k+ffueP+LH0e17z/mOLJFIJBwR4O484I8DsQQoFMGhlAEFCqBOB5SoAJkjnEj0zJIui0JZPjuMgHJwnn2xTgU06NlUUyhCwx8H7gSA+xFgYB6Qz8bYN2h... | 1 |
math | grade-6 | identify-polyhedra | false | true | Is this figure a polyhedron? | "iVBORw0KGgoAAAANSUhEUgAAAGQAAABkCAYAAABw4pVUAAAIxUlEQVR4nO2dW2wU1xmAP99Y33chatq44F1SgkNZ06EguWASb5Q+lAAVqfpAyIPNQ03JQ/ELEYoU2TwVCSFMKyU1qsSqKhC1VWLScFGlyGPAqNziAS8XEy67dmIoBDPjBXu9M7vbB3sXc3NpM2Mf6Pmk0c7Mzvxnznw6c85cpD8rlUqlkAhD9mQfgOR+pBDBkEIEI3eyD+BxhMNhIpEImqah6zq6rqNpWuZ/VVXH3T8QCGTmFUXB4/Hg8XhQFAWv14vP53PkuL8tWSJ... | [
"yes",
"no"
] | null | 1 |
math | pre-k | count-shapes-in-rings-up-to-10 | false | true | How many squares are there? | "iVBORw0KGgoAAAANSUhEUgAAAqsAAAEECAYAAAAPuX1XAAAFcUlEQVR4nO3Y0WnDUBAF0Si4DX2rKNenovztQjYNOCYBmzcJ5xQgLkiCYbeZmQ/+nNv1vnrCU8e5r54AAPwDn6sHAADAd8QqAABZYhUAgCyxCgBAllgFACBLrAIAkCVWAQDIEqsAAGSJVQAAssQqAABZYhUAgCyxCgBAllgFACBLrAIAkCVWAQDIEqsAAGSJVQAAssQqAABZYhUAgCyxCgBAllgFACBLrAIAkCVWAQDIEqsAAGSJVQAAssQqAABZYhUAgCyxCgBAllg... | [
"6",
"3",
"7",
"2"
] | null | 2 |
math | algebra-2 | classify-variation | true | false | Which graph shows direct variation? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAR4AAAEjCAYAAADkLW6lAAAV70lEQVR4nO3dW2xcV73H8d+MLzPxxHECx+MQaOzRSU9NYk7jWrUJCiGD4KFKAipC8QNQiYJokRIeqChtUC+oKlLD5SWtFAE6eUkenAdUHRsqBNRJqUjtKNgqdpVAe3wp0knGR9SXzsRjezznYbL37LEnjmOP996z9/cjVZmxx2vv5vLTWv+19lqBbDabvT4nvZuSZjLSQlYAUFKVAam2Qrq3RmqolgLX09ls/7TTtwXALzq2SJX/SOXefKxaui+SSyUAKKWZjHQ... | 1 |
technology | grade | peripherals | false | true | What kind of computer peripheral do you see here? | "iVBORw0KGgoAAAANSUhEUgAAAScAAAEsCAYAAACBnXWCAAEAAElEQVR4nOz9ebSl+VXfB3/PPM93vjV1d/WgqTFITAJEJEgQxsiLV0yGKMERisOKMCYGW6+MY3BiB7Bfx1mOg0wsG2GDhAwWWIBBkyWHNqApArfU6q7u6q7h1h3PPI/P+8dzP/vsc7o1gCQkRD9r1aqqe8/wPL9h7+/+7u/ev0gQBIGevf7YVxAEikQi9v/FYqEgCBSLxZ72Okkrr/XXfD5XJBJRNBq1/89mM8ViMcXj8ZXXLRYLxeNxRSIRjcdjpVIpSdJ0OlUkEll... | [
"Mouse pad",
"Dongle",
"USB ethernet hub",
"Modem"
] | null | 0 |
math | grade-5 | parallel-sides-in-quadrilaterals | false | true | How many pairs of opposite sides are parallel? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD9CAYAAACGLQCpAAAqmUlEQVR4nO3deZhU5Zn38d85VV3VXb1U0SzNoog7iqjghiGSaIZoEONuXKPGGEejY4wjud7kfSfjTGbmjYZJzKJBx4RRDMa4kASICaNxQzCgBBcEVxAbaIGmqmvt6qpz5o/qrlNtpOmltq76fq7LK0WlqvuB7ueqXz11n/s2bNu2BQAAACAvzFIvAAAAAKgkBGwAAAAgjwjYAAAAQB4RsAEAAIA8ImADAAAAeUTABgAAAPKIgA0AAADkEQEbVem7j8X11f+KqC1IG3g... | [
"2 pairs",
"1 pair",
"no pairs"
] | null | 1 |
math | grade-8 | identify-trapezoids | false | true | Is this polygon a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAB/CAYAAADVVbV6AAARmElEQVR4nO3da3Bc5X3H8d9Z7a5Wq11rLckX+S7fwJhAGTvgYDo2t5pMTDwEQ3zFNakzbTptMp3O9E37OnnRV+VNCmMTYwMmMWU8MJQEEnAGUyBlIFx8Q77Itoxl3VbWbbWr3dMXks9ZubC+6Ow+e/l+Xp1Hs8f6j0dn5qej5/n/Ldu2bQEAAADwhM90AQAAAEA5IWADAAAAHiJgAwAAAB4iYAMAAAAeImCjsAYGpA8+MF0FAABA3hCwUVhPPy2tXi3deSdBGwAAlCU... | [
"yes",
"no"
] | null | 0 |
math | kindergarten | cubes | true | false | Which shape is a cube? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAR2ElEQVR4nO2dXXAb13XH/xffBECCHxJJiRY/LIm0JJuchmosO4n8kTZxM3E8ncaZjts4fXHtlzxUU+eh0xm1bmf6EE/Vl87EHT/ZbcYz1UuZ8UNUJ5aU1JI9omOSdmSKkilpSJpfIAmAAAksgNuHBXYXICFR1N3du9jz04wBLC7uHgN/3r3nnHvPMs45n88B1zNAqgDkOQhCOnwMaPQCh8NARwBg81nOP0rabRZB7JxHmwDfVEZ9sS8ADERUVROEbKQKwGQa+DI... | 0 |
math | kindergarten | count-on-ten-frames-up-to-10 | false | true | How many shapes are on the frame? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACQCAYAAAAyRxwtAAAJlklEQVR4nO3dW29c1RkG4M9jD9hJc8CEUJM0QLngopUqikRpoQX6i4kIIiQ0agS0NCklN6nkVlGlEJ8COTS2x8an6YXr1jn5+M3ee7ye586RM16v1sV6tdeavQYuTS93A4D44MWhuocAwAHQqnsAAABwkCjYAACQSMEGAIBEjx04fHN0sI5x1Obru6sP/Sy//CWRf3X7XwKAXfIEGwAAEinYAACQSMEGAIBECjYAACRSsAEAIJGCDQAAiRRsAABI1IiC/eD+Wjy4v1b... | [
"7",
"9",
"3",
"5"
] | null | 3 |
math | grade-4 | transportation-schedules | false | true | Look at the following schedule: Brendan is at Pleasant River Campground. If he wants to arrive at Floral Gardens at 11:45 A.M., what time should he get on the train? | "iVBORw0KGgoAAAANSUhEUgAAAiIAAADCCAYAAAB0b6mBAACekklEQVR4nOzdeVhN2+P48fdplkbzUIlQlDKEKFKRoZCpEHLN1zzP13DN85R5ilDEVWQoIdeUzITM8xwalGj6/dHtcJxTnVz3dj+/73o9z3keZ69hr72t9l57rbXXkVRbq5+FIAiCIAhCIVADmNl6eWGXQxAEQRCE/0Mm7x8KgEohl0MQBEEQhP/DRENEEARBEIRCIxoigiAIgiAUGtEQEQRBEASh0IiGiCAIgiAIhUY0RARBEARBKDSiISIIgiAIQqFRK+wCCML/zzZ... | [
"11:45 A.M.",
"9:00 A.M.",
"12:45 P.M.",
"9:45 A.M."
] | null | 3 |
science | grade-7 | identify-chemical-formulas-for-ball-and-stick-models | false | true | Select the chemical formula for this molecule. | "iVBORw0KGgoAAAANSUhEUgAAAWYAAAC+CAYAAAAGPKXgAABQ9klEQVR4nO29e5RcR30u+tXe3T3d835JM5rR+2VLlmSMDQdjY+PYCTE4GAIJxoBJbIQd5551wkrOXeuerLPIIWcFsk5YJ+ecEEgWBoOB8IrhEhPM6/rBwyHYRvghS5ZkWR49R/Punpl+7ar7R+3a9avau0cjaR7d4/q0Wt29u3bt3Xuqv/3V9/tVFRNCCDg4ODg41A285T4BBwcHBwcTjpgdHBwc6gyOmB0cHBzqDI6YHRwcHOoMjpgdHBwc6gyOmB0cHBzqDI6YHRw... | [
"PH3",
"PH",
"PH4",
"P2H3"
] | null | 0 |
math | grade-8 | model-and-solve-equations-using-algebra-tiles | true | false | Which set of algebra tiles represents the equation 2x=10? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUoAAAB6CAYAAADZJBocAAAIgUlEQVR4nO3dW2hU+QHH8d+cSczq5LZNdrxFrIrdJu4WTasBi7pIhW7LPpTYB0HsixShhL7Eh20tkhRq8cmXPCzYvpVF2SDsYguVQKOlkt0ldbdoaqM2w67mNjVlzCTG5JzTh9GwouWfy7nn+wFRx0y+I8iPMznHnJTruu7IE+nOlPTIluZcAcCKVpaSqtLS9jXS2lVSamTGdT8uhP2yACCaWqqlssGp0m/Wr5Jez5RWFABWske2dLsoDT+R/jUlWYW50h8wkgB... | 2 |
science | grade-8 | compare-ages-of-fossils-in-a-rock-sequence | true | true | This diagram shows fossils in an undisturbed sedimentary rock sequence. Which of the following fossils is older? Select the more likely answer. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAD6CAYAAADUdTPBAAEAAElEQVR4nOz9ebxt2XXXh37HnKvZ3dmnu+fctm71UpUl2TKyq4z9cYNdSUwCBBcJ8XvvY/RME4xAHwgviR05IRBA2C95SaCwSAiET6EApivjEAKBsoxt7LhKZclWV7dKpWpvf/p9drfWmnOO98eca59zbl3JUiAfBDrj8zn3nmbvveaac661fmOM3/gNUVXl1L5q7DM/81EKnSMEAEQMiIAqSoAvslyqSk0HRY5+KQZXV7h6hq9rVD0giLHYvCAvCgie4B1oAPUoZvH... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA2sAAAD6CAYAAAA/Z9/rAAEAAElEQVR4nOz9eZRt13Xeh/7mWrs5XfW36rboARIQSYkyJUCWhhpLSCIntmPBL47ee0Pmk5tYps1hxy+JFCpx7NimpSQviQ2Ljrt4wIwdxQ1kxUnsOBBlSZYigBApscMFCKK9ffWnTrf3XmvN98da+1TVxSUFxs4wBZ85Rt1bt+qcs9dee+1957e+b35TVFVZxNdMfO5nPk6hM4QAgIgBEVBFCfBlLpeqUtNBkeMfisHVFa6e4usaVQ8IYiw2L8iLAoIneAcaQD2... | 0 |
math | grade-2 | identify-repeated-addition-in-arrays-sums-to-25 | false | true | Which addition statement describes the array? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABsCAYAAABQF8VPAAAMSElEQVR4nO3dsW8adx/H8Q+PonR6DEum2AK6pR04lkeJKhUYqiZSJdNU8VpQM9eh/QP40T8g0M5tc54sOaqdoUuUgUuHuuni65BmCxfZnTwY/Ezucs/gcK71xDiHf2ds835JSDbiju9nQProx3G/lDEmFICJaDabkx4BAABY9q9JDwAAAABcJJeGf7CSBpyeVqs16REAAEBCWMEGAAAALKJgAwAAABZRsAEAAACLKNgAAACARRRsAAAAwCIKNgAAAGARBRsAAACwiII... | [
"4+4",
"3+3",
"1+1+1+1"
] | null | 0 |
math | algebra-2 | linear-functions-over-unit-intervals | false | true | How does h(t) change over the interval from t=
–
4 to t=
–
3? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAAB0fElEQVR4nO39e3wT950/+r9GF99tbHyRwWAZQiCB2Nzv0EAhgWBDC22+pN22m91sEpKm+/j2fHf35NfT7fe7e7J59Dy27Z5mEyC03STt9ux+my1Ngo0hEK6FgMEBgw0hxGDZBmRLtmxL1mUkzfz+cOTa3CzBfDyS/Xo+Hnm0EpqX356RRm+9PZqRVFVVQUREREREmjDoXQARERER0UjCBpuIiIiISENssImIiIiINMQGm4gGKS8vx7vvvnvbfztx4gQWLVqEYDAIAPi... | [
"h(t) decreases by a factor of 2",
"h(t) increases by a factor of 2",
"h(t) decreases by 2",
"h(t) increases by 2"
] | null | 2 |
math | grade-2 | more-less-and-equally-likely | false | true | On which color is the spinner less likely to land? | "iVBORw0KGgoAAAANSUhEUgAAAWgAAABkCAYAAACrUKoaAAAPZklEQVR4nO3de3SU5YEG8IdkEuaWzDeTDKDbxFwsFMkFZgbrOQhCjNSKEuxak0m4r67K7rY9WgJUkW33bA0XF3uxW6uAUphEjiKynp49VgTa3YOF+QYSCBUEEgm1QgLzjWQIEUn2D8BmzWQyM5nvMpPn9x+Zk+998s9zXt55v/cd0dvb2wsiItKcFLUDEBFRaCxoIiKNYkETEWmUTu0AsQgGL0EKSJD8EvyShIAkAQAsggCrIECwChAsAkwmo7pBiYiGYISWvyRsb2+... | [
"green",
"white",
"neither; white and green are equally likely"
] | null | 0 |
math | pre-k | count-sides-and-corners | true | false | Which shape has 4 sides? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAFkElEQVR4nO3dTWtcVQDG8WfyBtZWd758AE2XbmzRRZH6CVzalbgRwYXfQQXBTReiCCJu1KWLQkUhWgpGiBSkZJEYA7HQMS+EvEwyIePMXBfHwaAxyWTufe495/5/UGhIJnPo/Ofl3nNObyPLsmy1I/3Wllo9qZsJGNlEQ7o0Lj1zQXpySmqsHmbZ3G7Zw0LKrj4mTSy1wxdPT0nTj4YKgVG1etLivvRHR/q1LY3tdsM3iAx5ujQempKkvZ401jvyDSBPg6b+zKS... | 1 |
math | grade-6 | model-and-solve-equations-using-algebra-tiles | true | false | Which equation does this set of algebra tiles represent? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJYAAAA2CAYAAAAlHWAMAAAFo0lEQVR4nO3dT2gTeRQH8O9kkqrdNFGnZBNPWkkbRFtExV7UQ08iW6SeBK3UHoIUBJEWhIIXD+JFRPEPqdJEoSIexAXpoYcSq8iqFUVtsq2CQanRBDTd1KTpzNtDmlmDpvnT/NqsvA8MNDNv8l7Il8wvpDASEdHHGWBiGphSgVkCY0UzSkCNDDirgd+rAOljkuiv2FKPxX4l2y2AcXw6/cBRBTT8lk4dY8WaUoFgHJicAf6eBgyx2fQBDhVbiBo5nSEA+EcFDOp... | 3 |
science | grade-5 | use-data-to-describe-climates | false | true | Which statement best describes the climate of Santiago? Hint: Summers in the Southern Hemisphere occur in December, January, and February. Winters in the Southern Hemisphere occur in June, July, and August. Santiago, Chile, is a city in South America. It is located in the Southern Hemisphere. It has a mediterranean cli... | "iVBORw0KGgoAAAANSUhEUgAAAtgAAALOCAYAAACTXGSDAAD6tUlEQVR4nOzdeXyU5b3//9c9S/Z9I4QkJEAICYEQtkDYBASxCMiiSNWKWo9LPbWtXaza0/5s6/HbVtu69JyjtVKXVkVBJSwKKGERwpYQAgmEkJ0lC9km22zX74+QITFBg0wyQT/PR6nJPffM/ZmZOzPvueZaNKWUQgghhBBCCOEUOlcXIIQQQgghxDeJBGwXycjIQNM0NE1j/Pjxri5HfAutWbMGTdMYN26cU27v7bffZvbs2YSHh2M0GgkODmbevHns3LnTKbffG8X... | [
"Summers have higher temperatures and less precipitation than winters.",
"Summers have slightly higher temperatures and more precipitation than winters."
] | null | 0 |
math | grade-2 | match-digital-clocks-and-times | true | false | Which clock shows eight fifteen? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMIAAAB5CAYAAABr7P6HAAAHdElEQVR4nO3dQXAT5xnG8b8M+JCY3em0tMBEBw5tWqRrQqsTwxiiHHrBtnQtNOaKaXNFssTVEGmGU03bHJGDOSQHqwWuSie9rphJ05lOo8yUQjPtygFqG7E9rFeVzSHWSqtdeZ/fDMN47H33s7WP97X2+3YTjuM4jzbhr89gvQMvHET2vYMJOHwAfvga/GASEo82HOezdtjDEgnPKQMOfvHM/eDYJLz5upsSkf1uvQOfP4V/bMJfnsFE+4X7CYVA4uTwAfeYB/i... | 1 |
engineer | grade-6 | identify-control-and-experimental-groups | false | true | In this experiment, which were part of an experimental group? The passage below describes an experiment. Emily wanted to find ways to save water. She learned that people can reuse greywater, which is water that has been used in sinks, tubs, and washing machines. She wondered if her plants would be less healthy if she w... | "iVBORw0KGgoAAAANSUhEUgAAAUwAAAEhCAYAAAAUBJnbAAEAAElEQVR4nOz9WbAkWXrfif3O4ltsd8uszKysrasXdAMgFgLcZ2g0aMwkakTTaEakjJQ4Rpn0xhdptJie9CC90vgkM3GML5JpmZFoI5NMmiExJFYC1SAAAt0AGo1uVHVVZVbletfYfDuLHo4fD4/IezNr7axq1GcWduNGuHu4+zn+nW/5f/9P/MN/+A89X8gX8oV8IZ8j+cf/+B8/l9/VAP+7//3/tv/Ae3/p+w/yffzfe9+/ANq2xXuPcw7n3NZ+QgiUUgghEEIgpex... | [
"the plants watered with greywater",
"the plants watered with tap water"
] | null | 0 |
math | grade-6 | rational-numbers-find-the-sign | false | true | The number line shows an unknown number, u. Is u positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAlwAAAApCAYAAADgbPfrAAAGFElEQVR4nO3dT2iTZwDH8d+bNm+zVmdDVVZGndthsCJWZ42tCPOwm5QR8eJhRXAKirjdPG2XFcEdh4KCJ4dFUOr8A7tsh9RLkho1W9bu1mphMqPYuf5L0uTdIU1sZ2ua6Zs3r/l+Du37Pn0pP3gvv7zP8z4xLMuyBAAu0t/fL8MwtH//fqejoEK453C7eqcDAEC5xsfHnY6ACuOew+1WXLgymYxisZgikYjWr1/PpwzAxbLj3yubvKHcZFxGfbMM33uqa+1VXevnTkc... | [
"positive",
"negative"
] | null | 1 |
math | grade-2 | cubes | true | false | Which shape is a cube? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAVPklEQVR4nO2de3hU5Z3HP5nMLZPLkGQCCcyQOxcFCXINCKhAFeVqferuPtunffbps6x9nt3ts7u23mi31lKrVmmFqhVXVBRBKFYoChhQCgQTIgm3JBACyaQhxIQkQxLGkJj9Y+ZMMoRLQmbmXOb9/KNz5sx5f46fvHPOe973eyK6u7u76zqgoh0udUFnNwKB4tBHQGwkZFtgmBEi6r7p7i5wyV2WQNB/psWB/nS750WKEUZHe6wWCJTGpS4ob4PzHXCqHXSuTs8... | 1 |
math | kindergarten | one-less-with-pictures-up-to-5 | true | true | Count the cookies in this group. Which group has one less than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABmCAYAAADxjOYpAAA1qklEQVR4nO3dd5Sk913v+fcTqp7Kobs6VIfp6YmaGcUZZcmWLbAASwRhg20M5q4TcLjssgZu2Ht3WS733nN2vRjvAS7JNmYx2Bgs21g2YAVbsmUrzShNDh2mQ3WsnOt5nt/+UR2nu2d6ZrpnWvb3dY7OqJ+qJ9Wvf6c+/Xt+QVNKKYQQQgghhBAbQr/eFyCEEEIIIcQPEgnYQgghhBBCbCAJ2EIIIYQQQmwgCdhCCCGEEEJsIAnYQgghhBBCbCAJ2EIIIYQQQmwgCdh... | null | [
"iVBORw0KGgoAAAANSUhEUgAABIYAAAB+CAYAAABRYRpnAABqHUlEQVR4nO39d5xj13Xg+/5OAHCQgSpUQIWu0LmbuZs5SVSyRMq2ZFnRkmcU7fH4Xo88nuAJHo9n5t3nIPu+GcuWTcmSLY80tkUlSrYkkhIpMXc3U+dUOQfkfM7Z7w9U7K7qrupYVK/v58NPs1DAwQE2FmrvdfZeWwMUQgghhBBCiEtCKcV4FU4WIeeALb1tIYQQG4ipQdiArQFo8YKGJIaEEEIIIYS4ZMYriheyV/sshBBCiPO7PQLm1T4JIYQQQgghfpqcKNb... | 1 |
science | grade-8 | compare-concentrations-of-solutions | false | true | The diagram below is a model of two solutions. Each yellow ball represents one particle of solute. Which solution has a higher concentration of yellow particles? | "iVBORw0KGgoAAAANSUhEUgAAAbAAAAEVCAYAAACBn7B3AABfYklEQVR4nO29d5wcxZ3+/9TMbNJGZSFQWIQkFEFgEUSwEUEiZ7DhJ1tggjkcSMacxZl0AnMyIvkAi2CsrzE+JAw6G1mIDGdARFkgZIyRUJZQ3DyzO9P1+6O7qquqe2Zndmd3p3s/z+sl7Ux1dYXuevrzruqeGcY55yCRSCQSKWCK9HQDSCQSiUTqiCiAkUgkEimQogBGIpFIpECKAhiJRCKRAikKYCQSiUQKpCiAkUgkEimQogBGIpFIpECKAhiJRCKRAikKYCQSiUQ... | [
"Solution A",
"Solution B",
"neither; their concentrations are the same"
] | null | 0 |
science | grade-2 | identify-solids-and-liquids | true | false | Select the liquid. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKUAAADCCAYAAAAo2gI4AAAhwElEQVR4nO2de4zdVp3HP7av7fua551HZiaT9EnSRlGrNlQLicqjTSlFbUBBFMSKpG2UjaDq9g8ookJqJdSyVSuEVIkiLUItYelWWy2ohaqLQIAKrXZpEKIPlW032bIN5DnvmfuyffYP33PnXI/vzJ28rn3HH8myfXxsH9tfn8fvHP+s/X5aiE056DJISLigzLrw53n4WwX6UrCj1w/XE0EmtIsuAzbl/OU5dzFcTwSZ0E6k/qpiMUxvT1ISEpqTiDIhciSiTIg... | 2 |
science | grade-3 | use-data-to-describe-u-s-climates | false | true | Which statement best describes the climate of Chicago? Chicago, Illinois, is a city in the United States. It has a hot summer continental climate. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAALOCAYAAACTXGSDAAEAAElEQVR4nOzdd3hUZfr/8fek9947CSQQAklogQBSxEqRalldYS2rqPtj19XVVbep6xaV3XXBthbE8lXRIEpRBCH0ECCFQDohlfTepp7fHzEjkdBkkhngfl0Xmjlz5pzPzDmZ3PPM8zxHpSiKghBCCCGEEMIkrMwdQAghhBBCiCuJFNgWJjU1FZVKhUqlYsyYMeaOI65Ca9asQaVSkZCQYJLtdXV18c9//pOxY8fi5uaGvb09Q4cO5amnnqKhocG43smTJ43nfnNz86D... | [
"Summers have lower temperatures than winters.",
"Both the temperature and the amount of precipitation are higher in summer than in winter."
] | 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? | "iVBORw0KGgoAAAANSUhEUgAAALoAAAGqCAYAAAC8r17eAAANg0lEQVR4nO3bX4yUd73H8c+zM7vLzLL/F3YJZWELtba75V9oPfRPikKIuG3RGqPGnBMbc/hTTtqk9vRORS9ME2t70qo0sY1Jk140qZpuUaMixj9UqskGCiz0lJYulaWrwJbZZQZmZ+bxYpHaC7KJ8TePmc/7dbOBffbZ78U7T37fmdkojuNYgTx+8Es6fn441O1RQ5a1rtZDK54Ndv+6YHcG/o0QOiwQOiwQOiykkx6g1mVSzbp9wb3q77hNPdk+ZetbJUmF0qTG82/... | [
"repel",
"attract"
] | null | 0 |
math | kindergarten | one-more-with-pictures-up-to-5 | true | true | Count the boats in this group. Which group has one more than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABmCAYAAADxjOYpAAAhaklEQVR4nO3daZAc93nf8W/P0XPuzrH3jd3FffIAJYIUCVGHFdqOVYktqVyy4yOpqCopv7JciRNXuXJUpfIirlTiSsWJ7diS5VhJJJsmRdmkZIo3SIAiCWBxYy/svTOzs3P3HP3Pi9ldYgkekIRrwd/nBY6d7p5/N9788NTTz98yxhhEREREROSG8NzuBYiIiIiI3E0UsEVEREREbiAFbBERERGRG0gBW0RERETkBlLAFhERERG5gRSwRURERERuIAVsEREREZEbSAF... | null | [
"iVBORw0KGgoAAAANSUhEUgAABCEAAAB+CAYAAAAa5QvPAABgcklEQVR4nO39eZBcV37Y+X7Pzcyb+15VWfuOfSUJLiC7yV4ltVqLLavVY2vXaGSHbL038SSPl+d4Ds+8eC/8HHaMPTOSLWvfpVZvIpvdTbKbZHMnAC4AClsBta9ZmVm573nP+yOrElUASIALqlDA7xMBFFB58+a599SpuOd3zvkdBWiEEEIIIYQQHwutNUtVuFyEXAPq8rQthLhH2RX4bbDLAzGz+T2FBCGEEEIIIYT42CxVNG9mt7sUQghxZ3k4AB0m2Le7IEI... | 2 |
math | grade-2 | write-subtraction-sentences-to-describe-pictures-up-to-18 | false | true | Which subtraction sentence does the picture show? | "iVBORw0KGgoAAAANSUhEUgAAAfQAAABkCAYAAABwx8J9AAAW4klEQVR4nO3deXRcZ33G8e/s2kajzZItxbHieImdEOMsjs3OoVAoNUuTUIKJ4rIfKKVpaeFw2p4eDhQobU8PtBSa5tQxMVAS05YlEFJOAlmcOI6XxLGxlUi2ItmSrG00M5oZzXL7x3gkjWas2TVX8vP5x5rRve+8j6/0/nS391oMwzAQERGRJc1a6Q6IiIhI8VTQRURElgEVdBERkWVABV1ExCROv9Rb6S6kKaRPylE+C/XJvoj9EBGRS9izbz8HDh5mx7Yb2L3r1kp... | [
"15 − 7 = 8",
"15 − 6 = 9",
"14 − 7 = 7",
"14 − 6 = 8"
] | null | 2 |
math | grade-4 | interpret-bar-graphs | false | true | An economics student recorded the amount of per-capita aid that the U.S. gave to various countries during the 1900s. In 1980, which country received more aid per capita, Algeria or Afghanistan? | "iVBORw0KGgoAAAANSUhEUgAAAZwAAAFcCAYAAAD8qQiNAABEoklEQVR4nO3deVxUZf//8dcAIhAgqCggIIuikgSKiYIbLrkWlZndlYUWVGrWt7K0wrQiXLpzu7uTvLPMpQVDI0srd1ExRMUFNxAXZlBQQEUEReb3BzE/ERe0mTnj8Hk+Hj2Sc2au63OG4bznuuYsKq1Wq0UIIYQwMAulCxBCCFE/SOAIIYQwCiulC7gbly5d4tKlSzRu3PimjykqKqKyshInJycsLS2NWN3NnT59mqZNmxqsnqtXr1JcXIyFhQXOzs4G6cNU1OU9cDf... | [
"Afghanistan",
"Algeria"
] | null | 1 |
math | algebra-1 | identify-direct-variation-and-inverse-variation | true | false | Which table shows direct variation? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAdwAAAA/CAYAAABKBHltAAANZUlEQVR4nO3de1TU5b7H8fe4UElRBDLwCKIGQoiaYYqWUCQuDUHTXWBeQcMborFyk3m8lITgZYN5wfBUu8QskZ3tAJcst2XipQWapuIeUUpQgeAguUVGUDh/uGOJV9rnx+8R+L7Wmj98Zpjns3hc85nfj+c3Y/jQq1ctQgghhGhUZgChn+xQnaPBEoP/ROg+o+oYooESvV1kvZoQWa+mRdaraWmlOoAQQgjREkjhCiGEEDqQwhVCCCF0IIUrhBBC6EAKVwghhNC... | 1 |
science | grade-6 | identify-how-particle-motion-affects-temperature-and-pressure | false | true | The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles. Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature? | "iVBORw0KGgoAAAANSUhEUgAAAmwAAAGZCAYAAAA0Im0SAACSLElEQVR4nO3de1xb9f0/8FcI15AALRRKKL2T1Na22MRe1Fms0+kk7uKVeOu+TjIvc07Y3NTadLrpVtB9vzot1N+sVUFdp1uDl6m1qU7batKbtvak9wKhNyjlcIfw+f2RntOESwmQGyfv58NKcnIunwR48z6fq4wxxhDB6utP4fDhI+joaIdMJgt1cQgBAMTExCA9PQMTJ04MdVGIhFH8I+GI4l//okNdgFDq6elBXV0dGOtBbGxsqItDiJf6+lPIzMxETExMqItCJIj... | [
"sample B",
"sample A",
"neither; the samples have the same temperature"
] | null | 0 |
math | pre-k | represent-numbers-up-to-20 | true | false |
Which picture shows 6 dots? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAQoAAABICAYAAAAOLLsaAAAE9UlEQVR4nO3czW8UZQDH8d/u7Oxbd9kSCa1SoyFWvUDjqTciNzDBi5z5CzQkegRjjPZoE8W/oGe91ER7K/FWTlLxgCWNCsQWSdh2urMvs7PjYbrbF0ieaftst8D3c6Ev8Ox3Q/LLdrc7qSiKopWWdM+XvFBqRwLwksukpLIjjRelkayUWmlG0a31QWcBOKomj0mZJT/+5NWs9M5QvCIAXm5eKN2tSf+2pD99Kb3ejr/BSADoKjvxJkjSRiilw23fAICu7iYEkZQ... | 1 |
math | kindergarten | squares | true | false | Which shape is a square? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAHLUlEQVR4nO3dzWtcVRgG8GfytWhaLV1ESim4MBFEUApSQSpx1YUUcedKcKUL990J/he6cuvOf0EsUoyY2m76kdKWhJBpLa0zaT6azOS6OF6Yjm3Nufec933POc9vU0vJ5HLP43l7n07mdKqqqrp7wO1tYHMIDCoQtTbVAY5NAvNHgNdmgE73aVUt9bUvi3J29hVgamXb/ebkDPDmrEshUVubQ+DmFrCxB9zaBib6A/cHDBmFdGzSZQoAngyBieHIHxCFVGdqvwI... | 1 |
math | algebra-1 | identify-functions | false | true | Look at this set of ordered pairs: Is this relation a function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABaCAYAAACCNCH/AAAUvUlEQVR4nO3dbVCU5/n38e9uiJKmsrs82IWaUUDxMRiQRKIirrZSoQh5GLWDaJraOGOI09ExcYxPTdKpzNhkpvKiasfgUxqFqLGijqiBVIgFZSKiKFRMirJrpM6iM5UAsvcL/173f4uxCy6Y+57fZ2ZfXMd1nudx7L46Zue8rtPk8Xg8iIiIiIiIX5gfdQEiIiIiIv8/UYMtIiIiIuJHarBFRERERPzIaLCbmpqw2+3s2LHjv076/PPPmTJlClarlbCwMNLS0jh79my... | [
"no",
"yes"
] | null | 0 |
math | grade-1 | addition-sentences-up-to-10-what-does-the-model-show | false | true | Which addition sentence does the picture show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABUCAYAAAC4PkCPAAAOpUlEQVR4nO3dW2wc12HG8W8ue+FeJNq8VCRNk7YVMRZsC6kUpDJqu0AR+cE2bDQpnKcgDVqjeYtfCrhokKAtmpcW7ZPRokUvaIC2Dw5QJGiQPCRF7cp9sJ24rFtb8kXWhZRkkpK43NvszJw+jChREkV5pbksh/8fYMCiduecTwCBb8+eOWMZY4wAAAAAxMLOegIAAABAnlCwAQAAgBhRsAEAAIAYUbABAACAGFGwAQAAgBhRsAEAAIAYUbABAACAGFGwAQAAgBhRsAE... | [
"3+1=4",
"4+1=5"
] | 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. | "iVBORw0KGgoAAAANSUhEUgAAAFIAAAIKCAYAAACwbhgoAAAaP0lEQVR4nO2de5BcVZ3Hv337Tk/3dE/mkRmSTFJmMUheOAmmDEGIPEohaAVcgwK7K6VVggJZQaAo8Y/dqi1UNhW3IoKLgrWuUtQqoBBw5bURMVsBggpxJxkhAUKSiZlh3tMz3U33vftHZybTM93n3nvu7zym+3z+m57uO2c+ffqe3/2ec25HXNd1oTEDmRE89c7/4toVl6luChNLdQO8+FHXE7j7Dw/Bhdbvt94i804B9+37JQ4MHsYzh19W3RwmWot89NBvcTTdBwD... | [
"repel",
"attract"
] | null | 0 |
math | grade-2 | which-table-is-correct | true | true | Molly went to the farm stand and bought the following fruit:She wanted to know if there was enough fruit to make a batch of miniature fruit tarts, so she made a table of the fruit she bought. Which is her table? | "iVBORw0KGgoAAAANSUhEUgAAAS0AAADJCAYAAAB2QWTOAACMu0lEQVR4nOz9ebRlV3mfCz9z9Wv3+/RtVZ3qS6UqSSUJoQYQSBiDMQYb2zH3Or6+ybWdkWHHucQh4bsJzhfHI8M3Dg5xk0G4FzsGDKYxnzHBYEwr1KFeqlL13WnqtLvfq19zfn+sfaoBjKUqqdr9jHHGObs5e6+19l6/9b6/+c53it/8zd9U9OnTp881ggHwgQ984EpvR58+ffq8JLQrvQF9+vTp83Loi1afPn2uKfqi1adPn2uKvmj16dPnmqIvWn369Lmm6ItWnz5... | null | [
"iVBORw0KGgoAAAANSUhEUgAAApcAAADJCAYAAAB2dxk/AADKGklEQVR4nOz9eZglV33fj79O7XX3vrf37pmenn000kgaSQgtCIRkNtsYG4htvGVxcBIHh4Qk2OQXYz9xYj9OCA7xFkyMF8ALYPiCCQYDQlhoQ7s0o9nX7p5e735rrzq/P+p2zwwSkpBGs6lez9NP3/2eU11d9a7P5/35HPFrv/ZrkoyMjIxLhF/7tV+70EPIyMjIyHgONIAPfvCDF3ocGRkZGS+ITFxmZGRkXNwoF3oAGRkZGRkZGRkZlw+ZuMzIyMjIyMjIyDh... | 0 |
math | grade-4 | compare-fractions-using-models | false | true | Which fraction is less? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC5CAYAAAAS5EjTAAANSklEQVR4nO3dP4hdVb/H4d8kUxiTcFMkwhUvCaYQeZVJJU6XQeQ2FnYaFLS58Q9BrIKNoGDj+xaCYBFuYSVoo9gogiZTBCOxmRSvaCFmEBLQZq5OMqDGuYXZYSZOJufP2nuvtfbzVDPnDJxVfIsPe/Y5Z2Z9fX09AACAJHb0fQAAAKiJwAYAgIQENgAAJCSwAQAgIYF93ZUrV+LkyZPxwAMPxJ49e2Jubi7efffdvo9FwU6fPh0vvfRS7N69Ow4cOND3cQCAjsz4FJG... | [
"1/4",
"3/4"
] | null | 0 |
math | kindergarten | subtraction-sentences-up-to-10-what-does-the-model-show | false | true | Which subtraction sentence does the picture show? | "iVBORw0KGgoAAAANSUhEUgAAAPoAAAAyCAYAAAB1V8bkAAAI8UlEQVR4nO2d728T9x3H376zfec4MY6TQJ0QIE4ClK0spCI0o2JILSptp04tQSjKmHgyaXuwPdlfsMd7NmmPqqloI1o3BW1DU4dUsW4PVkQiQggNJRgSBglJINjBxPFd7tceGP+8O9sX+xqn/ryeJD7f93ufl776fO++3zvf16FpmgaCIL7VMJsdAEEQ9kOJThA1ACU6QdQApol+997sNxlHSWwkJvKwD/KoLgrF5DTaeH74Iq6OjqO/rxfnhk7ZFpgVNhITedgHeWw... | [
"4 − 4 = 0",
"5 − 5 = 0",
"5 − 3 = 2",
"5 − 4 = 1"
] | null | 1 |
math | grade-2 | match-addition-sentences-and-models-sums-to-10 | true | false | Which shows 3+1=4? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARIAAABKCAYAAAB3ndsNAAAMR0lEQVR4nO2dS4wcSZmAv8hHvcs13e22PeM2dtszXgz2WlgLhtuw8syNCzASB9Be4DK7QprL7I0jGmlPgEDa3SMHxIELiJVAg0Zw47GgeS9rM+3BY6+7290z3fXKrHzEHrLb/XC7urKrIqsq+T+pVN2dj4ivlfFnZERkhNJa6/s9uNWBZgShRhAEoS+OgroNz1TgZAHUfV/r322OO1uCIEwr14+Bc7OT/PJkAf6umkQZQRCEfjQj+HMb/q8H/9sBazNMNkgQEQR... | 1 |
math | grade-8 | identify-trapezoids | false | true | Is this polygon a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADKCAYAAACfUje8AAAbqUlEQVR4nO3d63db9Z3v8c+WJVmSL/IltuM4Ic6dcGlpC+1QzmF6gSFACi3TGTpTmKH0dJhZZ806a52/Yh7Oo8OhhQBJC6UwhFsSCHdKBigwUCCEOCFx4sSJb7JkybpZ1p4HSrwlG4gvkvbe8vvVBzWKXH5laaOPtn6/78cwTdMUAAAAgLLw2L0AAAAAoJYQsAEAAIAyImADAAAAZUTABgAAAMqIgA0AAACUEQEbAAAAKCMCNgAAAFBGBGwsyVNPjOux30bsXgYAAIB... | [
"yes",
"no"
] | null | 1 |
math | kindergarten | count-to-100 | false | true | How many flowers are there? | "iVBORw0KGgoAAAANSUhEUgAAAbgAAAG4CAYAAAA3yvKzAABWlklEQVR4nO2dz28b1fqHP1/caVLSNEMT16EJittbaMVFNEoLVGzo5opILMgCiX+BHUv+ji7ZwY7s2BQJsQlCV0RUQkGovWkr0eGGtE6HhqlTu5Ma534Xb47mnJnjX00m8Yw/jxQ1tsczzxzFfX3Oed9z/u9///vf/0AIIYTkjBcOW4AQQghJAwY4QgghuWR/AlwYmo/X1wHfb3/MYULfdKFvutA3XeibLgfou/cAV6kAX35pCt24Ady8GT0OguQxhwV904W+6WLzXVn... | [
"85",
"97",
"93"
] | null | 1 |
science | grade-6 | identify-elementary-substances-and-compounds-using-models | true | true | Look at the models of molecules below. Select the elementary substance. | "iVBORw0KGgoAAAANSUhEUgAAARYAAAAiCAYAAACa0fZAAAAKFUlEQVR4nO2cW0xTyx7GvyILAYFSYowJtIpGKdAWJVHZ28tOiDdUAjExURMSI+jmYogBNLhVvEQBCVKMgPsY8MmoiS+geMFX5RhzhEBLucRAsIjRjVIom+tSOA9Yd/eml3UZyzon80vW08x882//8HVm1szIZmZmZkChUCgE8ZrvACgUyv8f1FgoFApxqLFQKBTiUGOhUCjEocZCoVCIQ42FQqEQx1tM44mJCbAsi8nJSbDsFACAYXywcOFCMAwDX19fIkF6mubmZvT... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAcUAAADMCAYAAAACubj4AAAtl0lEQVR4nO3deXhU5aE/8O9ZJpN9RfaETcgOAqKstbUuBeWRq9erYL11r0qvG9Lan+ttqVsVaBWtFW4fq7beq72AIHV7WrwRkQrIEpagUAwBE7LvmTnL+/vjnDOZmUySSTKQIXw/PueZZObMmXfOYL7zvuddJAACREQR9EW9QHYCkKT0d0mIQms0gJJm4FsvkKYCs1Ot++V+LRURDUgMRIp2SYr17xQAmoz2+xmKRBRxDEQ6Ezj/TjW/9lKGIhERkY2hSEREZGM... | 1 |
math | grade-1 | ordinal-numbers | false | true | The first picture is a bear. Which picture is ninth? first | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABdCAYAAACfMRFHAAAnwElEQVR4nO3de1wTZ74/8M9AqAQCwcIiXQGxxoJWBOx6K9jaV6ut1Va326637Xrr/nZF27XrirrtVjhHK17a2hbR8/t57TlWV3vTauulu7VHsdpaQVDBNWwDaEVFl0hIUJLM748hIYFcJmEmJJnv+68Ck5nx6ff7PM9kngvDsiwLQgghhBBCiCBCuvsGCCGEEEIICSbUwSaEEEIIIURAonWwG1tZ9D10G1n/aEJjK41CIYQQQggh0uBVB/uzq60oqGpx2XE+2mCERm9... | [
"bear",
"plane",
"train"
] | null | 0 |
math | grade-7 | simplify-expressions-by-combining-like-terms-with-algebra-tiles | false | true | These tiles represent the expression
–
4x+7+2x. Which expression is equivalent to
–
4x+7+2x? | "iVBORw0KGgoAAAANSUhEUgAAATIAAABoCAYAAABypHzgAAAJJElEQVR4nO3dX2xT1wEG8O/c65AUJ00gxCTB/AujNE63KWGENRSGSpHaTkzr0oc+oO5hPGzq0Ko2SF1hL0iDIVUdD+OBiXXapGkFkSF1Y5MaIk10EC10YXRKgIWk9hISN0llFGzjEN9795DWSkocmtxzr31uvp+EhP1wviuR++Xc44OPsCzLAhGRwrRcXwARkV0sMiJSHouMiJTHIiMi5bHIiEh5LDIiUh6LjIiUxyIjIuX5cn0BlP+MkVZYievSxxX+WuiB5kWXR/K... | [
"13x",
"–\n2x+7",
"5x",
"6x+7"
] | null | 1 |
math | grade-8 | transversals-of-parallel-lines-name-angle-pairs | false | true | \line{KM} and \line{NP} are parallel lines. Which angles are vertical angles? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD2CAYAAADs6vBqAAAh5klEQVR4nO3de3BU9f3/8dcmkAgJJIKMIS6TAEKpIbq5YLgICRYVBE1CHcFxQMVaidgh2joK7Uic78ildXStV+oUgjfAjrJYL6DMkEiNCWTDksQb1LDUjGLDJUEuEkj294fN/owk4ZKTPbt7no8ZZ2Q/657Xfv56+eF9ztp8Pp9PFtTY2ChJio+PNzVHqGL/AAAAOhZhdgCzFBcXq7i42OwYIYv9AwAA6JjNqifYycnJstls2rt3r9lRQhL7BwAA0DFLnmC7XC7t27d... | [
"\\angle{KLO} and \\angle{MLJ}",
"\\angle{KLO} and \\angle{POQ}",
"\\angle{KLO} and \\angle{NOL}",
"\\angle{KLO} and \\angle{MLO}"
] | null | 0 |
math | grade-4 | parallel-sides-in-quadrilaterals | false | true | How many pairs of opposite sides are parallel? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABSCAYAAABuZ6OSAAAVJElEQVR4nO3deXCU953n8Xe3Wnfrvm8kcYMQmFtgSRg7ZhyXjbGnMlVz1RwpCEk8DsTZqZ2dbM0kk8uOPY4H27OZ1M5UMvFmZgIex15jGwMSshESIA6BEKCjdbek1q2W1Gr1s384k43dgtBETev4vP6h0CNaX6lE1UePvs/nZzIMw0BERERERGaEOdADiIiIiIjMJwrYIiIiIiIzSAFbRERERGQGKWCLiIiIiMwgBWwRERERkRmkgC0iIiIiMoMUsEVEREREZpAl0AP... | [
"2 pairs",
"1 pair",
"no pairs"
] | null | 0 |
math | kindergarten | represent-numbers-up-to-20 | true | false |
Which picture shows 12 circles? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAjgAAACSCAYAAABIbbBXAAARtUlEQVR4nO3dP3CT9x3H8Q9gWZJlKbaxY5miXBpBcnZzBAZfy7+BCTxkLKx0YQtlpVzLhV5hae9o2doBVqdbMihMDIDbK4N9HMVNjCgXUSww2I5k2ZJlcAdFOBBsS9bv+aNf3q+FYKTf83tryfceP3qeTcvLy8vZRenevJR/Li0tCwAAoKm0bJKiW6SdbVJvq7QpW1pe/lfO620BAACY8fOY1DIxX/lLX6v0QaQy/QAAADST/HPpq4I0uSh9PS9tzi1V/oHhBgA... | 0 |
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? | "iVBORw0KGgoAAAANSUhEUgAAAFIAAAG/CAYAAADLgYBzAAAZs0lEQVR4nO2dbXBb1ZnH/5Il25JjOU78ipMQh1Aa4iSO80YgGZMQSEvKpEOXKS3baeELpQz0GzvLLJ1pp0OZ3Wm7BabtTNnuTne6LVvCLnRpgQnhJRmwm8SxE2OTEmICxC8liRMplhxLutoPtoxkSefee+5zzzmSz++bZfn6+Ocrnef+z3OuPKlUKgWFmUhcwonzb+GGxjtkD4WJV/YAzDg0sg+vfvzvSEHp/7faIo1UAm+efRaj0SEMjL8tezhMlBbZc24/Lk79DQB... | [
"attract",
"repel"
] | null | 1 |
math | grade-4 | identify-faces-of-three-dimensional-figures | true | false | Which shape has a square as a face? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAhvUlEQVR4nO2de5icVZ3nP+e8b3V1V/U13encSQIkQAgEEEjCugFxQFcEFfAyiiDgrujuquvz7DjqsvM44ziuzo4643odiVx0lNsgyEUuQQIkIUEgIQRyI4R0+n6pvlV3Vb/nnP3jra7uDp2k011Vb13O54/kyekk51edfJ/znu/5vr8jjDGmNQn74tCvwDNYLJYs4QqocmBZBOaUgWhNGLO1L+iyLJbSY3U1uHvj/i/mlcFpUV+dFoslO/Qr2D0ILUnYEwfZ5/l... | 0 |
math | grade-4 | scalene-isosceles-and-equilateral-triangles | false | true | Is this triangle scalene? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADPCAYAAADPn6YPAAAcPUlEQVR4nO3da3CU5d3H8d/uZnMg2SZIEkJIIGAIEIKEU636PFp5sIAoKIi2gBvRdqYzPcw4djrTN07bmc70jc50+uJp+8yoKKacEhSwKFZRGazAkkDMgVNAZAuyHrLquqyuu/u8SDcGSUIO9+59b/b7mXFGNpv7/uGrn9f8r+uyxWKxmAAAAAAYwm52AAAAAGA0SZmC/de//lV5eXlqamoyOwoAAADQr5Qp2Lt379YXX3yhP//5z2ZHAQAAAPplS5UZ7IkTJ+rChQv... | [
"yes",
"no"
] | null | 0 |
math | grade-7 | identify-complementary-supplementary-vertical-and-adjacent-angles | false | true | Which angles are complementary to each other? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEDCAYAAAAPwnN0AAAm5ElEQVR4nO3df3RT933/8ZcjwIIwSZBgE2LXMj9ClirBtM1ZjlmKyXoOhJ0tzmkyk3U0ZIPRrjuz3JEdRBJsk2LTAwv2tyc9JNBTZ8lWc9K0ZusSe2cd5iRzlzZrRKszaO3gm5o1oIz4WqNEkFz8/cOTDsaWbYyle2U9H+foGEv3x1sJf7zyyft+3nmDg4ODAsYRDodVVlZmdxkAAACOd4PdBcD5Ojs7VVdXZ3cZAAAAWSGPFWyM584779Tp06fV399vdykAAACOxwo... | [
"\\angle{6} and \\angle{1}",
"\\angle{1} and \\angle{5}",
"\\angle{6} and \\angle{2}",
"\\angle{6} and \\angle{3}"
] | null | 2 |
math | grade-8 | identify-trapezoids | false | true | Is this polygon a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACGCAYAAADnyP2rAAARY0lEQVR4nO3de4xc5X3G8ec9M3P24l2v7wYvJlCDwZc1cRANbYzSpKBwCQ0JN5NCi2IILQSkFKWNhKoqUmhSIUspwlUJWCoUg21CQi6UAlFKEggmEZfYxjYGc4nj+64vu97LzJw5p3/s+pxZg9nLnHPenZnv56/3Z+2e9/mDlR4N553XBEEQCAAAAEAsHNsBAAAAgFpCwQYAAABiRMEGAAAAYkTBBgAAAGJEwa42GzZIvb22UwAAAOAEKNjV5sYbpbY26fbbKdoAAAA... | [
"no",
"yes"
] | null | 1 |
math | grade-3 | multiplication-input-output-tables-find-the-rule | false | true | What is the rule for this input/output table? | "iVBORw0KGgoAAAANSUhEUgAAAFgAAAB/CAYAAABrPAW6AAAKn0lEQVR4nO2df0zTZx7H3wUKyK+WA0EQsT3xuAl2MueV4aHHZAMFNXJxhISpnEpyzm3ctswdi5kMSBBjMqaZy82AGvy139kN6GHM5qlBxNM43Fg8bG5ygJQOSqHW0tLn/mDt1tHLhD4fsOZ5JfzRp99+Pp+++u3Tb7/fpx8kVXu6GbyAoj9Hou6QfqbLmBS73oiFz0wX8bAjBBMjBBMjBBMjBBMjBBMjBBMjBBMjBBMjBBPj58mD1/0xHJFRUtQe0vGqhwv+/hKkZ4R... | [
"× 10",
"× 2",
"× 6",
"× 8"
] | null | 1 |
math | grade-8 | identify-linear-and-nonlinear-functions-graphs-and-equations | false | true | The graph shows a function. Is the function linear or nonlinear? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABiwUlEQVR4nO3df3RU9b3v/9dkZvI7ISGBhB8miCgKJAiKFgTBg1WPtp5C24vtaj2eZXuuvbW2/facu84637brnh6vq2udY886Vnt7e25vq/f0fnvrrdqqjRQrAg1VIGIgUREjhATILzJJZjI/9uzZ+/tHmEgEJIH9YTLk+VgrSzPJfuXN3jOfec9nPrO3z3VdVwAAAAA8kZPpAgAAAIBLCQ02AAAA4CEabAAAAMBDNNgARt1888167rnnRr//7W9/q2uuuUaO42SuKAA... | [
"nonlinear",
"linear"
] | null | 1 |
math | grade-2 | purchases-do-you-have-enough-money-up-to-1-dollar | false | true |
A peppermint candy costs 7 cents. Do you have enough money to buy it? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAABuCAYAAABSgmeUAABgm0lEQVR4nO3dd3gc1bn48e/MzhbtrrRaadWtLtlq7r2CKcammBJ6CYEQ0khCgARzQy4kF7j8QhIIISHkQiAmtDjYgG3AVGNw77g3WZbVu1bavjPn94esxcJNBtPs83kePbZGM7NzZmZ333nnnHcUIYRAkiRJkiRJkqSTgvpVb4AkSZIkSZIkSSeODPAlSZIkSZIk6SRywgP8joggf5GX4e910RGRvX8kSZIkSZIk6ct0XAH+K/URfrM9eNTAfXFLlCq/wYZOnRvW+j/... | [
"yes",
"no"
] | null | 0 |
science | grade-6 | identify-rocks-and-minerals | false | true | Granite has the following properties:
no fixed crystal structure
solid
not made by living things
naturally occurring
not a pure substance Is granite a mineral? | "iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAADRcUlEQVR4nOz915MkaXrmi/1cu0eEhxaZkVpUVZauaq2mezSAGQALcZY0grvGQ+MFSePt/gc0GnlxyF1yzUizNSNpxjUYDnaB3YM9wGIwmEF3z7Turi4tslKryNA6wrU7LyK7umcw6MGeHgA92HzMosrTI9zDI+J7/Pte9bxCFEURpzjFKX4mxH/oCzjFKb7MOCXIKU7xOTglyClO8Tk4JcgpTvE5OCXIKU7xOTglyClO8Tk4JcgpTvE5OCXIKU7xOTglyClO8Tk4Jcg... | [
"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? | "iVBORw0KGgoAAAANSUhEUgAAAVQAAABNCAYAAAD5PJxSAACAAUlEQVR4nOy9d5hdZ3Xv/9n77NP7md77jGbUe5csWXIvYBsb24Ah9B5IniQ3gRRuAuHmpv8SAiHGBmyKe8VFkq3e2xRJo+l95szM6X233x/7zFgG28jGhEvQ93n0aOo5e72z93rXu9Z3fZeg67rOFVzBFVzBFfzKEH/TF3AFV3AFV/A/BVcc6hVcwRVcwbuEKw71Cq7gCq7gXcIVh3oFV3AFV/Au4YpDvYIruIIreJcg/SbfXNd1NE1DFA2/nkwmCAanCIcjmM1mwuE... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAlEAAAC1CAYAAAB/NqpjAAEAAElEQVR4nOy9d4Bc5Xnv/zllzvS2M9t7lXbVewMJCdERYIxpdmzfxBU7jq/jGydx4lS3mzi5Se7vuuMKsQ2YIjpIAqHetVqVrdrey/R6yu+PmV3ABhsJAcY+n39Wu6udOe+7z573OU/5PgJgYGJiYmLypjEMg9EMdCUgqoFq3l1NTH6vkAVwS9DogGIFBEwnysTExOSSMJo2OBR5p6/CxMTk7WCNB+R3+iJMTExMfl/oTOQ+liowz5l7YjUxMfn9IapBexxGMtC... | 0 |
math | algebra-1 | domain-and-range-of-square-root-functions-graphs | false | true | What is the domain of this function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABqSUlEQVR4nO3de1xU950//tcwF+4w3AREQfGWoICiaFCIpppLY2qivZj22zbpN7vddJum7fe73W9/u22/bb/ZbPfS7rdp0s1mN81lv31sWltjGw0ajUQJJKKoKHhDRC4iAwMzw1zPOTPn/P4gUCfeGD0fh5HX8/HIwzDMefHmnJkzrzmcmTFomqaBiIiIiIh0ERftAYiIiIiIbics2EREREREOmLBJiIiIiLSEQs2EYUpKChAY2Pj+NednZ3IyclBV1dXFKciIiKKHSz... | [
"$\\{x \\mid x \\leq 6\\}$",
"$\\{x \\mid x \\geq-6\\}$",
"$\\{x \\mid x \\leq-6\\}$",
"$\\{x \\mid x \\geq 6\\}$"
] | null | 1 |
math | grade-6 | classify-rational-numbers-using-a-diagram | false | true | Use the diagram to help you answer the question below. Which of the following is a whole number? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEuCAYAAAC08GWcAACIMUlEQVR4nOzdd3hUZfbA8e/0mfSeUAIEQu9SVRAQFUVUFLCAbVl1dcWu67quHfVn17Xs2gsWVFBAURFUmvTeeygB0stkMn3m/v64mYFIlyRTcj7Pk2cmkynvTJJ7zz33vOfVKIqiIEQjUmj3c6DaR5nTT7VHwe714/Aq2D0Kdq+iXq/5Png9cLvHf5TbFKo86r9RrF6DWa/BrNNg1oMleP3Q5R9vs9TclmjSkmTSkGzSkmzWkmTSkmxSLxOMmhB/akIIIYQ4WRoJsEW... | [
"0.86",
"30",
"–9.61",
"–110"
] | null | 1 |
science | grade-4 | use-evidence-to-classify-mammals-birds-fish-reptiles-and-amphibians | true | false | Birds are a group of animals with similar traits. The following traits can be used to identify birds: They have feathers.
They have wings.
They have a beak.
They make eggs with shells. Observe the animals and read the descriptions. Select the one animal that has all of the bird traits listed above. Green violetears are... | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAp8AAACmCAYAAACcAuREAAEAAElEQVR4nOy9d7xsVXn//37WWnvPnHNu5146SJciCCgo0kSxm9hRY4kajTHRGI3GFGN+psfoN0ZjjbGbmESNXWNvoCgoiBUQ6eVy+z1lZu+11vP741l7zjkXELDEBPbn9eLFPXPm7Nkze869n3meT5F/u3Kk91xXsbYSevTo0aNHjx49evT4RWBrq5y3pUUumU3aE88ePXr06NGjR48ev2hsbRXZNM76yz6RHj169OjRo0ePHncOhKVfPOhXjsQVKioiiFO894g... | 1 |
math | grade-7 | parallel-perpendicular-and-intersecting-lines | false | true | Are these lines parallel? | "iVBORw0KGgoAAAANSUhEUgAAAGgAAABoCAYAAAAdHLWhAAAKVElEQVR4nO2de1SUZRrAfwOIgiInDctNxC6aKaaxaHLHUdvWc8pa66jrZT16tqyj2WnVtrbs3ikzd106prVaKgmtS2ntSqVyG24GiBdAtFJuZpuAy22QkWH2j+GbhpgZJ5jhe7/h+/0lH858j/6cj+d9n+d91JhMJhMqwuIldwAqjlEFXYOWBr2s91cFOWDr6h1UllTJGoMqyA6bl28l6+NcucNQBdki4bH3+PrfRQAYWg2yxqIK+hlbV+8gJ+Wo5WtfP18Zo1EFdWH... | [
"no",
"yes"
] | null | 0 |
math | calculus | describe-linear-and-exponential-growth-and-decay | false | true | How does f(x) change over the interval from x=
–
7 to x=
–
4? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAABzHUlEQVR4nO39eXyU9b0+/l+zL5lsJCEJCQmr0WASFlFBqFioWrULWIutXVB/tloFQfEc2mP7Oe2xHD+nao8LFFEEbHs+PfVblSMaOSARMJEtQsjCZoRACNlnJjOZ5Z6Z+/79kU6ahCAJ3O/MTHI9Hw8fbYbcV16578w917xzZ0ajKIoCIiIiIiJShTbSAxARERERDScs2EREREREKmLBJiIiIiJSEQs2EfWyc+dOjBs3DnfeeScA4Bvf+Abeeeedfj83EAjgxhtvxN6... | [
"f(x) decreases by 3",
"f(x) decreases by 1",
"f(x) decreases by a factor of 3",
"f(x) decreases by 4"
] | null | 0 |
math | grade-5 | is-it-a-polygon | false | true | Is this a polygon? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEECAYAAAASx0PMAAAaaUlEQVR4nO3dPXAbd5bu4RcAoWYDIGGIIGWW7iVddRNJKZmaE1pKzXSkVMq27OzOR7Se3cxzQzMdKZVSacKFUjIlnWytoV2VJBIUDALdYKuNxg0aDZEUafEDQH/9nmTKKg55xiOXXxyd/zmZfr/fFwAAAICRyIZdAAAAAJAkBGwAAABghAjYAAAAwAgRsAEAAIARImADAAAAI0TABgAAAEaIgA0AAACMEAEbAAAAGKGpsAtAuDyrL+fVBx3WP8iz+7K3DyVJ7t5vchu... | [
"no",
"yes"
] | null | 0 |
science | grade-3 | identify-ecosystems | true | false | Select the tropical rain forest ecosystem. Hint: Tropical rain forests are warm and wet year-round. This ecosystem has:
year-round rain and warm temperatures
soil that is poor in nutrients
many different types of organisms This ecosystem has:
land that is covered with water during most of the year
soil that is rich in ... | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAp8AAACtCAYAAAD2xRSHAAEAAElEQVR4nOz9d7RseV3nD7923rtyPjmfe87Nt2/s2923Iw0NNIgECSKIyE8dxpEZxRFHl8zj+EiPDPM4oD46OuAAIo1NaISmA53jzTmfe09OdSrnnZ8/6vSRq5hmPQK/n/Vaq9a6p6r2ru+uqu+6n/qE91s4Wvb9ySCEJTp06NChQ4cOHTp0+Beh6sLlOggVx/c7gWeHDh06dOjQoUOHf2mqLgi+7/s/7IV06NChQ4cOHTp0+NeB/L1//Jff+22ee/4pVE3A800... | 1 |
math | grade-2 | how-much-more-to-make-a-dollar | true | true | You have these coins:Which coins do you need to make a dollar? | "iVBORw0KGgoAAAANSUhEUgAAAUEAAAA/CAYAAAB+UXo0AABi1UlEQVR4nO29d3hch3Xm/bt1esWg90IU9t5JURIlWcW2JMuqcXfWiZO4pOxmN/utEyXZJ2Wz2dTNkzju3bJsVUqUKIoUxV4BggRIEL0DM4PpM7d+fww4lmLZpmQpdtZ89QcpYmZwz713zj3lPe8RbNu2uY7ruI7r+CWF+PM+gOu4juu4jp8nrjvB67iO6/ilxnUneB3XcR2/1LjuBK/jOq7jlxryO/0LbMskl82SSSVJp5IkFhbILkTJ5AuIgC8Uxhcsw+vx4PR4CAS... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA5kAAABxCAYAAABfqWdUAADTaElEQVR4nOz9d5xc13nY/39umTt9Znd2tve+WPTeCLAXUaQKRaqQVnHsxE2yHduJLTuJE/uXZsdxHJd8Y8sqlm1JtCT2ThAESKLXLdgFsL3PzM5Ob7f+/pjFWrQkiqTAovi+Xy++QBK7g3vPDuae55znPI8AWNhsNts/U5ZlsaTCWB4yBuj2J6LNZrPZbDbbWyIL4Jeg2wO1CgjYQabNZvtnbKlkcSr9Xl+FzWaz2Ww22/8bdgdAfq8vwmaz2d5LV/PlX+sV6PW... | 2 |
math | grade-4 | identify-trapezoids | false | true | Is this quadrilateral a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC7CAYAAABfLOnYAAAQqklEQVR4nO3dW7Bd9V3A8f/aO8k5J5DUchooWOjlgUkHtCANUqfjTKcUqp1eKFK01cHLjDp11HF89M0Z3+z4oqAvnWqRa2svWh0LLQhiIW2AFJpUxjraICGHJCf3nEv2Wj4kWXvvs/dJzmXt9V9r7c/n6f9nwt6/F2Z+czjf/JMsy7IAAAAUohV7AAAAaBILNgAAFMiCDQAABbJgAwBAgSzYAABQIAs2AAAUyIINAAAF2hB7gJVKX/3LsPjqvSHZ8JYQWptij1Nv2WI... | [
"yes",
"no"
] | null | 0 |
math | grade-7 | interpret-graphs-of-proportional-relationships | false | true | Liam loves to read and discuss books, so he joined a book club. The first book he read as a member of the club was a novel set in ancient Rome. The graph shows the proportional relationship between the time Liam has spent reading the novel (in hours), x, and the number of pages he has read, y. What does the point S rep... | "iVBORw0KGgoAAAANSUhEUgAAAioAAAI0CAYAAAAz7AJYAABU2klEQVR4nO3deXxUdZ7v/3dlX8liQjY2UQkgi6ACUcLS3di2URTQ1vya7mZwmNFuR3uu3Y/29jg9o90yzr2NduNyvfRVaa/OOPIAbFFoLoIsYhuR1QSQRULIUgmB7EtVavn9EaowJoEkpOrUqXo9Hw8fD+vUSdUnh0rVu77fz/kei9vtdgsAACAAhRldAAAAQG8IKgAAIGARVAAAQMAK+qAya9Ysvfvuu97b7733nsaNGyeXy2VcUQAAoE+CPqhMmjRJJSUl3tvLly/... | [
"In 25 hours, Liam reads 1 page of the novel.",
"In 1 hour, Liam read 25 pages of the novel."
] | null | 1 |
math | grade-1 | select-three-dimensional-shapes | true | false | Which shape is a rectangular prism? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAHuElEQVR4nO3cXWxbZx3H8a/z/lqnTWiatF2CWJuWSm15WaNJFKkVAiHouiuEBEgICXHD2xV3VGiIC7YLkLjggtvtYrsAlGhCKaNbBUJdu461o1mdVmrD2sRZki6OE+elcQ8X/4TEjZM6L/bx3/w+0tGxT+3neSJ9e+weu4kEQRDE5+F2CpJpWAgQKToVEWgshwN10FoFkfhcEFyeDHtZIrnr3gEVt1J2p60KuuqtapFik0xDbBqG52EgBWWTC/YHilaKWWO5NQo... | 2 |
math | grade-6 | which-model-represents-the-ratio | true | false | Which model represents the ratio of 1 triangle to 3 pentagons? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUYAAABRCAYAAACucw9nAAAIbElEQVR4nO3dW2wcZxkG4Hfs9Vpeex0Tpz6gOI2dHlwJ6iQi+KJQaEVFIhHoRUDlolBBFaGqN6hKRRGyqgjRqFHFTYVQVFBBQpSS0NJEilFFTBMukjbEJ+LYcUNw48hLnTiOd7POrGf352Llkoxtsjv7n8b7Pjc+rGfm+6T16/n+3Rk7QgiRyAAfpoFkFvAEiIjKSsQB4pXAvTGgOQo4CVeI9+dMl0VEZIfueiAyns5/0RoF7q/NpyYRUTlJZoGxG8BUBjifBir... | 0 |
math | grade-5 | parts-of-a-circle | false | true | What is \line{KL}? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADICAYAAACdx5VnAAAksUlEQVR4nO3deXxU9b3/8fdMJpnsCUkICWFLwo6ArFaBClTQuIA/1/bqdS/8vHrr0oK3arW3/rQPvfVWr3VrKUWtFfW2aquQimyKIggEE2RfAknIvu+Zyczvj4GTiYRNAudk5vV8PHhwzpkzk0+S88d7vvmcz9i8Xq9XAAAAAAKCw+wCzgWbzdatr8d7IgAAAFhVUAR8AjkAAACChd3sAgAAAAB0H7vNZtOaNWuOeeCiiy5SamrqMcfz8/Nls9n0yiuvaNGiRbLZbHK... | [
"diameter",
"radius",
"chord"
] | null | 2 |
math | pre-k | count-on-ten-frames-up-to-3 | false | true | How many hearts are on the frame? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACQCAYAAAAyRxwtAAAH9klEQVR4nO3dP2ic9x3H8a/+nppaNniQ4oZo8p8U4i5SuxjjiqRTXReaDkXOUkMwWgPOWgiZGuifyRTsTrVpAx2aUDw0dSmmSy0vcQabLKUhwfZgSGTLOp1O10GokSLLujt9Tyfp93pNkSw9+n22N08ePeq5fq/WCABicrS/20cAYA/o7fYBAABgLxHYAACQSGADAECidQ8cjh/s68Y5uubWw/qaj+23vyT21zf/IgBokTvYAACQSGADAEAigQ0AAIkENgAAJBLYAAC... | [
"2",
"1",
"3"
] | null | 2 |
math | kindergarten | compare-two-groups-of-coins-pennies-through-dimes | true | false |
Which is more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAASgAAACYCAYAAABXunTYAABthUlEQVR4nO39d5hd51nvjX9W2Wv3NrOnd03RjHrvkm25yj1uaSSQDiFvgAQOJXQ4hMOPQ3JCIBzHIcQkThwndtyL5CZLVu9tijS9tz27l9V+f2ztFQkCWLZlD++7PtelSzMqs/da+1nf537uKpimaY7n4XwaEjpoJjY2NjbvC7IAfglaPVChgDCeM82D8ff7bdnY2NhczvoAyD3pwjdVCiz0FtTLxsbG5v0goUNXCsby0J0GMa4V/sIWJxsbm/cbv1TQIoCkDqJ... | 0 |
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