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-7 | apply-addition-and-subtraction-rules | false | true | The number line shows an unknown number, b. Is b–1 positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAGy0lEQVR4nO3dW2yT5x3H8d+b4ANxSBoRQrMNlLaA2ggtB4JJKO2Y1t2M0RKEqiFV1AUJDYRE79BWaVApjcQNnbQgwYTaFU0Ruwmd6K7GBQ6aajuYxFtGpFKFFAYbOIhDznYS7yKxm5QcKLH92PD9XNmPc/FTXif66dH/fV4rFovFBABZpLm5WZZlaefOnaajIE245gCyySLTAQDg+7px44bpCEgzrjmAbPLYBTsajSoYDMrv96ukpIRdBOAx3B/p04eBT9XRe1UXbra... | [
"positive",
"negative"
] | null | 1 |
math | grade-3 | coordinate-planes-as-maps | false | true | What is at (5, 3)? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEACAYAAACJVgHaAABhz0lEQVR4nO3deXyU1fX48c99lpnJZAfCThBFdgQSBVRkU1Aooq1Yte67td9aq6JWa2srvy9qXaj+rD+txapV27ovVAWhgisqsikoCCJLwpY9sz/L749JhoQsJCG75/16jcxk5rn3ziQmZ+6c5xzluq6LEEIIIYQQollobb0AIYQQQgghOhMJsIUQQgghhGhGEmALIYQQQgjRjIzKK6tXr2b+/Pnoup6486KLLmLGjBltsjAhhBBCCCE6okSAHQwGGTduHDfeeGNbrkc... | [
"library",
"car dealership",
"bakery",
"garbage dump"
] | null | 3 |
math | grade-3 | compare-area-and-perimeter-of-two-figures | true | false | Which figure has a greater area? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKgAAACZCAYAAAC7bXG8AAAG1klEQVR4nO3dX0iU+R7H8c84o5WpB/+d46yFoOtZvAmJQCmjoiJQtDCiQmK80EvpYovAi4jqViiKLgomsIsMjGBXIaIwEgqXiigrdtcQK/+EW6KppanPuZhtyKN2dtXx+Z7m/YJhZp7f48MX5u3zDP5hPI7jOH3jUseo9H5SmnAEuMbnkRK9Um689K84ydM35ji/DLk9FjBTQZLk+3009MQfJ/2wMlQv4Jb3k9KvI1LvuPTbqBQzNBFaIE5YkOgNtShJw5NSzOQ... | 1 |
math | grade-3 | multiplication-input-output-tables-find-the-rule | false | true | What is the rule for this input/output table? | "iVBORw0KGgoAAAANSUhEUgAAAFgAAAB/CAYAAABrPAW6AAAJuklEQVR4nO2de1BU1x3Hvyy4vFxcA1GMLQ9xNcrDMtbimGgyAaGImLGNUyyvEZCh02h9oIN1dpQBOogPwsig9Y1GkToSXUeBUB8QrdIKI9EU0ioKiEuGNYu7Arusy+0fm92GSFoe58fzfGb4Y89dft+zHw5n7957OFgt2qEWMAo49bEDonM7hrsb/eLWTilEw92JsQ4XTAwXTAwXTAwXTAwXTAwXTAwXTAwXTAwXTIzNYL459SNHzJhijeg8Dav+MMFBDCR8YA9/dxv... | [
"× 4",
"× 5",
"× 7",
"× 2"
] | null | 3 |
math | precalculus | determine-continuity-on-an-interval-using-graphs | false | true | Is the function f(x) continuous on the open interval ( – 7,5)? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAACFPUlEQVR4nO3de3xU13kv/N/cNBrN6D5CEgIJYwy2MGBzsQMGbAfHxnGcGIiLkzaO27SN01ya9Jye5s3tPU1cNz1tkpM0zknSpvGtbU54jZP6IggO2CgQGyNjAQJsLEAXhC4jjUZz3XvP7P3+MexBAxKakfbSnpF+38/Hn0Ri5tGjvTV7nln7WWtZNE3TQEREREREhrCanQARERER0UzCApuIiIiIyEAssImIiIiIDMQCm4jS7N27FwsWLMB9990HALj//vvx/PPPj/l... | [
"yes",
"no"
] | null | 0 |
math | calculus | describe-linear-and-exponential-growth-and-decay | false | true | How does f(t) change over the interval from t=1 to t=4? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAABx10lEQVR4nO3de3xU9bkv/s+aS5LJjYQkJCGQkICgYIKiYEGoWKxabxXUota63cfdfeypbU9fv7N7ur2gKGV7Xnu3+9RjPd09u1ux1Vqp6K5goCgoFBQkQiABMSYhF2CSTK5zXfffHyEhkUtmYH2zZpLP+x/NZOaTh7VmvuuZJytrJNM0TRARERERkSUcdhdARERERDSWsMEmIiIiIrIQG2wiIiIiIguxwSaiYbZt24Zp06bh1ltvBQDcfvvteOuttwAAJ0+exJYtW/D... | [
"f(t) increases by 6",
"f(t) increases by 8",
"f(t) increases by 200%",
"f(t) increases by 600%"
] | null | 0 |
math | pre-k | select-solid-shapes | true | false | Which shape is a sphere? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAW+klEQVR4nO2da1RT557GHyAkIUAChKsECQh4RVFRhGrVUk+td21X7ZpZc9qzZtZqZ7rWXDrTabW1V3vsRaf2jK21Y0+11SpWj1qpl1ZrawEVUEC8ICAIocglEYIBYoQyH/YFAkGB7GRf8v4+6WZn77/h55udvf/v83r19PT0NNiAyg7gTjfQ1QMCQXDIvIBAHyBRBUTIAa+Guz09+W18l0UgDJ00NSCr6KD+EiUHxvpTVhMIQuNON3C9HbhlA8o7AO+2LuoHRFq... | 1 |
science | grade-5 | animal-adaptations-skins-and-body-coverings | true | true | Eurasian lynx live in the forests and mountains of Asia and Europe. The lynx's skin is adapted to help the animal survive in cold places. Which animal's skin is also adapted for survival in cold places? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEKCAYAAABnkCFsAAEAAElEQVR4nOy9d7xkRZn//646qXP37Zvm3onMDDNkkCAowncRAxgQFZRgAHbVFTGxIOKu7KK77i5gWBF1RV1QXNfwAwHDCiYUEYkiOU2++XbfzidW1e+PvnNliIMOQbffvPrFnT6h6lRXnfOcpz71PMIYY5IkQWtNjx49evTo0aNHjx49/jyRUmLbNiKOY9Mz7nv06NGjR48ePXr0+PNHSonsGfc9evTo0aNHjx49evxloLVGPteV6NGjR48ePXr06NGjx46jZ+D36NG... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA88AAAEKCAYAAAAsMWftAAEAAElEQVR4nOy9ebxkV1nu/13D3rvmM/fcnU66M5IwJCCR6d4IXIICNwpRJoHwUVBkEH4EAQUNeBEJClcGlekSCSLiJUBAFERBEEMgYAhj5k7PZz417mENvz/WrjqnSUI6kDDdevgc0qdOVe1Ve6+9ar3v87zPK7z33hiDc44xxhhjjDHGGGOMMcYY46cTUkq01gghftxDGWOMn0nIceA8xhhjjDHGGGOMMcYYP/1wzmGM+XEPY4wxfmYhx4HzGGOMMcYYY4wxxhh... | 0 |
math | grade-4 | points-lines-line-segments-rays-and-angles | false | true | What is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAB6CAYAAACFmCTJAAAKmUlEQVR4nO3dz2/cZX4H8PfY2JEwnjjNDwLxIlhVK4hWsFKlxRxQllVjaFB7iaUml2rFP0B64LAHIpFLD4tU51w1SHtoojYctidiqwsolTKmP1SiZrKqekAwXickUZwpDuAonh6M7YS1Hcf+zthjv15SDv5+M8/zOb716PP9PKVGo9EIAABQiI71LgAAADYTARsAAAokYAMAQIEEbAAAKFAhAXt4eDjPPPPMff+OHj2akydPFrE8AAC0jVIRU0SOHDmSer2e48ePJ0n... | [
"a line segment",
"a point",
"an angle",
"a line"
] | null | 0 |
math | grade-8 | parts-of-a-circle | false | true | What is \line{GH}? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADICAYAAACdx5VnAAAng0lEQVR4nO3deXxU9aH+8Wcmk8lMICuBkBBCQsIaVkUWAwVUVFQEpdq6t9aitS7dsGoX2+qv1d723utWl7pwtQgu1OXqFWvZkUX2JWyyBAgJ2fd9MvP7I3KYMWxKwjkz+bxfL16c7zkzZ56E88czh+85x+bz+XwCAAAAEBIcZgc4F2w2W4fun+9IAAAAsIpOUfAp4AAAAOgs7GYHAAAAANB+7DabTUuXLm2z4cILL1RSUlKb9bm5ubLZbHr++ef10ksvyWazyePxdHj... | [
"chord",
"radius",
"diameter"
] | null | 1 |
math | pre-k | count-corners | true | false | Which shape has 3 corners? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAGV0lEQVR4nO3du2tbZxzG8Ud2kiG3Tm0JHUqHtv9B888YMoRCxqyBLsVbCy1OXQLp5EKg0FJCS7ukW0soKSWjLzGWjWVZsqTIuvigI+no7SCrpJD6Ip3zvJfzfDYjWecdvhY+9g/9CsYYU+kDmxHQSYChgcjMLhSAa/PA+5eBty8BhUpszLO27WNJyG5eBy68iMZf3LgEfHhlXKHIrDoJsH4E7PeBjQiYaw/HDygySdO1+XFTANBNgLnklQdE0jRpamCAObtHkbx... | 0 |
math | grade-6 | interpret-double-bar-graphs | false | true | McClure Furniture Exports is shipping pieces of furniture made out of different types of wood. Are there fewer cherry beds or mahogany beds? | "iVBORw0KGgoAAAANSUhEUgAAAYsAAAIaCAYAAADRMmHwAABJiElEQVR4nO3dd1hTZ/8/8HcgTJkKCIgKbkUEqoLiRKsVV91W29LhLHUP1LZPax2tq5Xyq1XRam3d+pQqbutAVKiToeLAAaIgVWQPDeT3h4/5GoEchCQnwPt1XVySc07O/YkJvLnPuG+JXC6Xg4iISAU9sQsgIiLdx7AgIiJBDAvSCfHx8ZgwYQLWrVsndilEVAqp2AWQ7oiOjsbq1atLXdegQQN8+eWXGmvbxsYGfn5+cHJyUizbvHkzHj58iMDAQI21S0Tlw7CgEiw... | [
"cherry",
"mahogany"
] | null | 0 |
math | pre-k | fewer-more-and-same | false | true | Are there the same number of beach chairs and beach towels? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEECAYAAAASx0PMAAByrElEQVR4nOzdd3wd133n/c/M7b2g994IdqoXy5Jc5BrHdooTO3bK5kk22SSbPGmbvtnsZpPNZpPYyT5ptuMkbrLsuMmOZfVCiqTETrAARG8XuL3fO3OePy4IEgJIgBQkEfTv7ZdfIubOnDl3fv98cXDmHE0ppRBCCCGEEEJsCv2N7oAQQgghhBA3EwnYQgghhBBCbCIJ2EIIIYQQQmwiCdhCCCGEEEJsIgnYQgghhBBCbCIJ2EIIIYQQQmwiCdhCCCGEEEJsIgnYQgg... | [
"no",
"yes"
] | null | 0 |
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-half? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHwAAAB8CAYAAACrHtS+AAAWTUlEQVR4nO2daXBU15XHf7231K19X5GEkIQEEojVgJfENh4cA47tlOMYiJdslbFNJomTOFWTL/MhVVkmlZpMEnviyWS8jx3HxhsYGwMCDEKgBQkhIVn70tpbvanXNx+euo0xYKn79Yb0q1KBuqV3r/r/zrn33XvOuTJBEIRhB3RYweQGl8Ai1xFKGcQpYFksZKhBNmwXhNrpcHdrkVCwIR6UF63iN1lqKNWJd8Mi1w8mN7RZYMgB7VaQT7vENxbFvj6JU4jaApj... | 2 |
math | grade-1 | count-sides-and-corners | true | false | Which shape has 3 sides? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAGnUlEQVR4nO2d204bVxiFlznkIk3Sm6qHB2j7CHmKvmyrtE3Tm9wQKY3USMRNIAUFoaZGECkywVJczPRiBzDYxqe9939an2SBbXk8mM+emT1rL7eapmk6feDvHnA8AE4bELI0ay3g7irw7W3gq1tAq/OxaZ52pVeLeOb+PWDtdS9d+eYW8P1nyUJCluV4AGydAP/2ge0esNI9TXdQMpKTu6vJKQD4MABWBkN3EJKTc6f+a4AV2VUhUaBopAoUjVSBopEqUDRSBYp... | 0 |
technology | grade | icons | false | true | This is a(n old) logo of which famous app or program? | "iVBORw0KGgoAAAANSUhEUgAAARgAAAEsCAYAAAAYZaw3AAAVeUlEQVR4nO3de5CV9WHG8efsLgsLu9xhQQVvIBKFkGgGS40VIeJdOq1pbWcyE9tOJ53RdkyadkYnaaq2liGKDJNgMWZqW211TE1bax1tLky0RoNBjYwCVVyUiwuosMtyObunf+y+h/ecPWf3vOe8l9/l+5lxJsIg+0++8573Ob/3zW15ZZsAIAlNWf8AANzVEvUP9A/kCyP9fnNTS67+HweAS2oOTPfBfYX/OThWb51xno517lH/gj8t+f1WNWnKx7M0ae/kwvz3ztc... | [
"Opera",
"GIMP",
"Google Play (Store)",
"ICloud"
] | null | 2 |
math | grade-8 | identify-congruent-figures | false | true | Are these shapes congruent? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADFCAYAAABuBIVpAABZzElEQVR4nO3dd1jVZR/H8Td77yGuFBBMTSzFrU/uLEdqamZqYkOyxJkoiogC4katNFPSzCzNhjkKizS3aCYqKQouFJEtiqxzzvMHSZ3ADfwY39d1eQG/8xufcz0++O0+9/29dTQajQYhhBBCCCFEqdBVOoAQQgghhBBViRTYQgghhBBClCIpsIUQQgghhChFUmALIYQQVdzmzZvR19dHX18fXV1ddHV1i35esmSJ0vGEqHJ0ZJGjEEIIUX0MHDiQDh06MH78eKWjCFF... | [
"no",
"yes"
] | null | 1 |
math | kindergarten | represent-numbers-with-shapes-up-to-5 | true | false | Which group has 2 stars? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAEcCAYAAAAV9AvgAAAICklEQVR4nO3dP2yU9x3H8a8PjMnxN4QYEApBitrKcyNlKnOWLu3MnKzNTNewRerWrs3cpV0y0y2COU3ThUoRFGgTsDli/Oc6WI4gnB3HPn/uud+9XgsYy+fnK/N7+36+53k8NxwOh/efV/1rULW8UbU+LICxODpXdepI1c/6VReOVc3dXx0OP38y6cMCWvfe6aqjXw223rh0rOoXJ7ZqBDAOyxtVXz6tuve86p+Dqt6T9a13iA0wbqeObLWlqmplo6q38cI7AMZ... | 0 |
math | grade-4 | compare-fractions-using-models | false | true | Which fraction is less? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC5CAYAAAAS5EjTAAAIkUlEQVR4nO3dT4hW9R7H8c/RR26oDdzSRUFotRiQoAhzMOgfdSkIbBH0h1y0KIkWgbmoVThEEC1CIpHutoRKaNEEIZcmmCQGwijaBBJjERQzgRCWmdTTIovqemnkfp9zfDyvF8xinjkw3zP8wDdfzzzTDIfDYQAAgBIruh4AAADOJwIbAAAKCWwAACgksAEAoJDAPu3kyZN58sknc/XVV2diYiI33nhj3n///a7HYozNzs7msccey5o1a7J+/fquxwEAWtJ4F5Ffbdu... | [
"2/4",
"neither; they are equal",
"1/8"
] | null | 2 |
math | grade-6 | compare-area-and-perimeter-of-two-figures | true | false | Which figure has a greater area? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAREAAACUCAYAAAC0nh1RAAASi0lEQVR4nO3deXDTdf7H8ec3TaEKikIpIjQJlFCOUqFQsZw9aUspd7lvQUUBAUXFch8KCgrILSCIVUQuuQSRSyuwrgzD7rgO4qz7W91xGYGl3Ngjvz8CUfAAGtI0yesx00kz+aTf93cYnvOZ5pvUcDgcjv/+DN9ehHOFUOBAROQPmQ24Jwjsd0OVMmD894rD8cVZb48lIr6o6b1gPn7ReadqGYgs5yyMiMgfOVcIxy7Ajz/DNxfBdLbA+YACIiK34p4gZy8Azhe... | 1 |
math | grade-5 | interpret-bar-graphs | true | true | Some students at Fairfax Middle School signed up to help out with the school play. Which bar graph shows the same data? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC9CAYAAACJdQrFAAA4eUlEQVR4nO3dd3hUVf7H8feU9DZpJAQCJBBa6CoWXBUFWUGlyf5EBBFZwbKouwuCdZUiAoIiiIoorrvSkaKgYANFxRUVRbBAQoAE0ic9mZnM/P6Ijo4BSWBgCHxez8PzMDfnnvs9k/njMyfnnmvY1PQTFyJSJ70PXuzrEkREROQMZ/R1ASIiIiIiZxMFbBERERERL1LAFhERERHxIgVsEREREREvUsAWEREREfEiBWwRERERES9SwBYRERER8SIFbBERERERL1LAFhE... | null | [
"iVBORw0KGgoAAAANSUhEUgAABQoAAAFsCAYAAACEv4QMAACJOklEQVR4nOzdd3RU1d7G8e9kJr0SEhJCCD30riAgKAgWUGmiooJYQb22e+31VRELihX1YgHLlQ4CYgFRWlCQTgBpCTWk9zqZ8v4RGRlCSSDJTOD5rMWSObPPOc/ZOcTJL/vsbQDsiIiIiIhIlbDb7SSbYW8h5FnBok/bIiIi4qZMBgg0Qgs/iPACAyoUioiIiIhUmeQSO+tyXZ1CREREpHK6B4HJ1SFERERERM4newrL/lvfC1r6l/2WXkRERMQd5VlhVwEcNcP... | 1 |
technology | grade | logo | false | true | This is (part of) a (former) logo of which computer related brand? | "iVBORw0KGgoAAAANSUhEUgAAAV4AAADpCAYAAABsk19jAAAyb0lEQVR4nO3deXhlV3nn++/a++wzayzNUklVUs3lsqsoG4OHAAYCgUCaTifdCdBAQjpJMyVcICQ3dN/kCeReIBfSJB2SdJOB5IYQaJp+HIIxg8EYD2VTtmueVCqV5vnMwx7W/eMcVZXdGo50jqQj6f08Tz2PS97a2iWd/dM6737XWuqZE2cRQgixfoyNvgAhhNhuJHiFEGKdSfAKIcQ6k+AVQoh15tvoCxBis/E8TzuOg+M45DXYrkvOdsgoPwAp271xbMZfC0BW3xz... | [
"Texas Instruments",
"Alienware",
"AMD",
"Intel"
] | null | 3 |
science | grade-6 | compare-magnitudes-of-magnetic-forces | false | true | Think about the magnetic force between the magnets in each pair. Which of the following statements is true? The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material. | "iVBORw0KGgoAAAANSUhEUgAAAnYAAACtCAYAAAA9MjI8AAA8r0lEQVR4nO3dd3hUVfoH8O/0mkoK6QGS0HtvAkGaWEBBqgXBrovYWXTdXdeC6wqKirooSrOgNAULTekgJZRQQiCk916mz/39kQ0/ajIzmbnn3pv38zw8GpiZ887kznvee86558o4juNACCGEEEJET846AEIIIYQQ4h1U2JHrTJgwATKZ7Ko/oaGhGDlyJHbt2uXWa506dQoymQx79uxxOw6Hw4FXXnkFcrkcixcvdvv5hBDSGCHkOofDgffeew+dO3eGwWBAhw4d8M4... | [
"The magnitude of the magnetic force is greater in Pair 1.",
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is greater in Pair 2."
] | null | 1 |
math | pre-k | circles-squares-triangles-and-rectangles | true | false | Which shape is a square? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACbCAYAAACao4KyAAACeElEQVR4nO3UO25UQRBA0ZrxJzC/DMQCgIiYLbARVsVGWAMpEZ8ck9pgCePRI3hCImd0RxrOibrVUqmCq94sy7Jc3s58uZm53s3cLQP/7HQz8+Bk5tnFzJPzmc3lz2V5f3XotThmrx7OnH6+WS9Pz2de3FsrhH91vZv5+GPm6+3Mp5uZ7dXd+iAy9unBydrUzMz33cx299cD7NOfpn4tM9vDrsL/QmgkhEZCaCSERkJoJIRGQmgkhEZCaCSERkJoJIRGQmgkTvc... | 0 |
math | grade-3 | lines-line-segments-and-rays | false | true | What is this? | "iVBORw0KGgoAAAANSUhEUgAAAG4AAABuCAYAAADGWyb7AAAFFElEQVR4nO3cf0yUBRzH8c8dFxcKMX4cBMLd0cyNzU03dZW2NWe1tbSxopUohvxl//hHbWnJAhqVttWaf5R/MWaitbF+mWsrXbZlq6UbKzc2c3kHCAEiEeDFdXdPf9BO77lDuXue557ne8/n9dftmPDMNwf3Oe55HIqiKCBxnGYfAGWG4YRiOKEYTiiGE4rhhGI4oRhOKIYTiuGEYjihGE4ohhOK4YRiOKEYTiiGE4rhhGI4oRhOKIYTiuGEYjihGE4ol9kHQIsLjM3... | [
"ray",
"line",
"line segment"
] | null | 2 |
math | grade-2 | purchases-do-you-have-enough-money-up-to-1-dollar | false | true |
A tulip costs 75 cents. Do you have enough money to buy it? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAB3CAYAAAB2WzTHAABgOElEQVR4nO3deXxU1d348c9dZslkZrLve0IChH2VRUEUZVGxRevWqtVW7aP2aWtta5/um/Zna/dWfWqtXdS2qKiAu6IIgsi+EwhrAtmTyewz997z+2OSkUiAgIh96Hm/Xrw0d2bu3POdCXznzPd8jyKEEEiSJEmSJEmSdFZQP+4LkCRJkiRJkiTp9JEJviRJkiRJkiSdRU57gt8VF1S83M2YN/x0xWX1jyRJkiRJkiSdSSeV4D97OM4PdkSOm7i/2WawL2SxwWdy09r... | [
"yes",
"no"
] | null | 0 |
math | grade-4 | compare-fractions-using-models | false | true | Which fraction is less? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC5CAYAAAAS5EjTAAAINElEQVR4nO3dT4hO+x/A8c/5GRuZKX9u2UyKhZVoTCZKCCmKUv4UCwtJdlLcjX/Z3GZlpexEylCzsfBnMWrGQkkiKxqGqxQyjYVJ/pzfwtyb2+1mpj7znHmc16uezeOUz3n6lHffjucpyrIsAwAASPG/qgcAAIBficAGAIBEAhsAABIJbAAASCSwx4yMjERRFP96HTt2rOrRaHK7du36e59evHhR9TgAwCRrqXqAqWJkZCQiImbPnh0dHR1/v79w4cKqRuIXcP369ej... | [
"4/8",
"5/8"
] | null | 0 |
math | grade-1 | two-dimensional-and-three-dimensional-shapes | true | false | Which shape is three-dimensional? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAfuklEQVR4nO3deVyVZf7/8ZfIvu+I7AiKGWriirhSae7VjM7UpPWbeUxTs3yn+U7fTCsdK1ts30zALc19KyytNMdEdhEBFQVZBAUB2XdQfn8cYKxpQT33uc/hfJ7/mCj39al8e+77uq/rc/Xp6OjoKG2F3EaouwbtHQghFGLaB+z6QrA1eJhDn9KWjo7kWrXLEsL4jLEH05xGzU88zWGQjSadQghl1F2Dcw1Q0grnG8Gktl3zCxI+IZRn11eTNYD6a2By7YZfEEI... | 0 |
math | algebra-1 | domain-and-range-of-square-root-functions-graphs | false | true | What is the range of this function? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABhaUlEQVR4nO39e3RU953m/z6luql0FxJIIJAwxmALI2xs7IAhthu37bYTpyGdwckvF/dyT9o9cSeTP3pWTk8n093Hx5M13ele8STpdGYycTKnf79MfGK72zgywTE2BGIwMggkfMEChATofqvr3lW19/lDlozMTTL7S1Hwfq2V5VRR+9FHe1ftemprV5XPdV1XAAAAADxRkOsBAAAAgCsJBRsAAADwEAUbAAAA8BAFG8AUdXV12rVr1+Tlo0ePavbs2ers7MzhVAAA5A8... | [
"$\\{y \\mid y \\geq 1\\}$",
"$\\{y \\mid y>0\\}$",
"$\\{y \\mid y>1\\}$",
"$\\{y \\mid y \\geq 0\\}$"
] | null | 3 |
math | grade-8 | classify-quadrilaterals | false | true | What name best describes this shape? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADKCAYAAACfUje8AAAkE0lEQVR4nO3da1yVdb7+8QsQBsXEUag8lOL2uGkQGtMmATHNXmNTYE2mYgmemsZSrFEnrcRpRMvtiG6dGnErlqDRNGBNzs40EXQmDwk6uhMxD+GhAvmzHBBisRb/B/fYAQ8BLrjXWnzeT1hL1rrvi2fX6+fv/n09amtrawUAAADAITzNDgAAAAC4Ewo2AAAA4EAUbAAAAMCBKNgAAACAA1GwAQAAAAeiYAMAAAAORMEGAAAAHIiCDQAAADgQBRsuxVJdrjl//6Pyio/... | [
"trapezoid",
"rhombus",
"rectangle",
"parallelogram"
] | null | 2 |
math | kindergarten | square-corners | true | false | Which shape has 4 square corners? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAFiklEQVR4nO3dz0pbaRjH8V80SnHamWJkyixmOTP0CnoDtWBt9V56SYYgCC5Ma4VahCIUqQiCi9CpUNOSmlhjU48eT3KSnFmEtF0MbWOS5/zx+1kpKj6Lr+8jenxNBUEQlBvSvis5LakZCOhbOiXdGJX+mpBujUupcj0IXp2GPRaS7M6vUvqN23nlj3Hpn186FQL9clrS63PpsCH960ojp83OG4gMg3RjtNOUJJ21pJHWN28ABqnblB9II+GOgquC0GCC0GCC0GC... | 1 |
math | kindergarten | subtraction-sentences-up-to-5-what-does-the-model-show | false | true | Which subtraction sentence does the picture show? | "iVBORw0KGgoAAAANSUhEUgAAAGQAAAAyCAYAAACqNX6+AAAOfElEQVR4nO2bW2wbV3rHfzOkSFGkbqQk3yVb8t2xV7IdJ9zCddfpIk6z2xbY7KVNm7BA0W4fsu8Bmpe+GH0q0AV6Q7dhEgSLxW6KAglibINm43W3tJ3YcRL5Jim629SNpCReh+TM9OEMObyLlBXba/gPEDxzzpmZ75z/+c73ne+ckXRd13mMhwbygxbgMYrxmJCHDI8JecjwyBMyMjbxoEUoQy2ZrPdRjvsO/9vvELh8Fe+Jo/he/M6DFgdYW6ZHVkNuj44TuHwVgMD... | [
"2 − 2 = 0",
"1 − 1 = 0",
"2 − 1 = 1",
"3 − 1 = 2"
] | null | 2 |
math | grade-1 | comparing-review | true | false | Which group has more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAABeCAYAAAC6ni/3AAAEtklEQVR4nO3dy08bVxgF8DM2MAYcbNSqVTeIjYkXiZIFCO+7qASqiLrqv5hNVFpRKYvsTfAiUjYGZ9FmU6pEwQbbzFBGt4thJOIntr871590fhvEQ/fOuT5+MHgunjHGnN8AH7rAVQTcGhDNnQUPeJQFSivA90uAdx4a8/bS9WERPdzuGrDQ6Maf/LAEPF6NW000b64i4LQD/HMDnHWBzOVt/A2WlubZo2zcUQBoR0AmuvcNonmWdPQ/A2TcHgrRdFhcUonFJZV... | 1 |
math | grade-6 | identify-complementary-supplementary-vertical-adjacent-and-congruent-angles | false | true | Which angle is complementary to \angle{4}? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADZCAYAAAAaEEeJAAAql0lEQVR4nO3df1iUdb7/8RcoROJZ4Fy7FLEdbeqcPaQjjLErQUfxmHi8CtOrNQe5lKGTIUWKmql7JQJ1pWYGlSml52I6RaC1V2xeZz3ispFn5cK9OM7gSNTZdmS3penQuXamctIghu8fbnzXNEUduPnxfFxXVwn33POa6+qPV+/e87lDent7ewUAAAAgKEKNeuPCwkLV1tYa9fYAAADAgDCsYE+cOFELFixQSkqK2tvbjYoBAAAABJVhBTs9PV2SdPToUZnNZj333HN... | [
"\\angle{5}",
"\\angle{3}",
"\\angle{2}",
"\\angle{1}"
] | null | 0 |
science | grade-5 | identify-magnets-that-attract-or-repel | false | true | Two magnets are placed as shown. Will these magnets attract or repel each other? | "iVBORw0KGgoAAAANSUhEUgAAAcUAAAC7CAYAAAAUnoWBAAAH8klEQVR4nO3dy4+ddR3H8c9cOtcybadSbDstYqkNpqWlFQwiIljAgEbSeCEaXRE3+ke4dOnGxIWJ0WgwISZsIFIoVwNIml4osdqUS1DaWjpgS+fWmc5x0S9YF5RhLue05fVKJrOYy/NLnpPv+8zznPmdtkaj0QjAh3jphdN5auepVi8DmqK91QsAgIuFKAJAEUUAKKIIAEUUAaCIIgAUUQSAIooAUEQRAIooAkARRQAooggARRQBoIgiABRRBIAiigBQRBEAiigCQBF... | [
"attract",
"repel"
] | null | 0 |
math | precalculus | find-limits-at-vertical-asymptotes-using-graphs | false | true | The graph shows f(x). The dashed lines are vertical asymptotes. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH3CAYAAACBwSh7AAB+MklEQVR4nO39e3yU5Z0//r/mlMzkOIGQA4EkAoIGknDWKAFUVFYUC62r7cei3R62XQ/d7cG2/trubyvrdtva/bRql9q6itrPttJqlZOKBQmCCEQIJIBAIJNAyHlmMpnMzD333Pf3j2ECIaeZ5L4yM8nr+Xj40Mzc88rlZOaa933NdV+XTlVVFUREREREpAl9tBtARERERDSWsMAmIiIiItIQC2wiIiIiIg2xwCYaR3bu3InCwkKsWrUq2k0hIiIas3S8yJFo/FixYgW... | [
"$\\lim _{x \\rightarrow-4^{+}} f(x)=-\\infty$",
"$\\lim _{x \\rightarrow-4^{+}} f(x)=\\infty$"
] | null | 0 |
math | grade-3 | read-a-calendar | false | true | What date is 4 weeks before October 30? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAGvCAYAAAAuQaExAABea0lEQVR4nO3de1yUdf7//yfDQRQFRE4qmng+IR7zgGSppWmnrdbvR7f9uZWdbdtsLZddq93WXLXazdzNdrPM3NLSNVErTQsUFFNRVEATEBFRURGU82Hm9wcxiiAOCgxcPu632942Z66Zec2LmWue877e13scLBaLRZeJi8vWwYMXdP58sQAAAHDjWrd2Ud++7goO9rR3KbgJOFwe8OPisnXmTJGGD/eWs7OjPesCAAAwjJKSMu3YcVbe3s3Uv7+nvcuBwZku/8fBgzk... | [
"October 16",
"October 2"
] | null | 1 |
math | grade-6 | nets-of-three-dimensional-figures | true | true | Which net will make this figure? | "iVBORw0KGgoAAAANSUhEUgAAAGQAAABkCAYAAABw4pVUAAAQZElEQVR4nO2deVBUV9qHn25oRZY0GtyNTdBEXBKYMS4xCvihMfqhiERNcMEFEdBIY4hLJGlIFEwUwS0YNQHUOGpitSuJ82E1RqmgGWOrcYkii4TFEUEElP1+fyA9juUC9EJDeKq6ii5un/d361f33HPe95x7RYIgCDRjLl26hJ+fHyKRiJiYGPr379/UkrRDaKbcuXNH8PPzE4D/+vj5+QkFBQVNLa/RNEtDNm7cKHTo0EEAhI7tOwnrgjYLkUGbhI7tOwmA0KFDByE... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUkAAACzCAYAAAAE9O5jAAAWUUlEQVR4nO3de1hUdf4H8PdwVZQGN7xRCikgIipWKibKGFjqqnhLWyhQW1G8rGiaqaW4tWrlAhVsGGyKpqm7hLdl1wKB0EfRWAc1JUUuqwgqPy8MqFzn9wfNmKlHkZk5Z47v1/P44KPDnM9R5s33DN/P5ygAaEGSodVqUV4LFNwENA1APf93iEzKSgHYWwJudkBHG0ABhqSklNdocaRS7CqICAAGPgVYiV0E3e3szaaPnW2AHm2avqMRkeloGoCfq4GyWuDMTcB... | 0 |
science | grade-7 | compare-concentrations-of-solutions | false | true | The diagram below is a model of two solutions. Each purple ball represents one particle of solute. Which solution has a higher concentration of purple particles? | "iVBORw0KGgoAAAANSUhEUgAAAbAAAAEVCAYAAACBn7B3AABgUUlEQVR4nO29eXgc1Znv/62q7updrV22bNlub/K+YGzjBRsbzGKbnWzwYwbyJGSYzHAJNyHckMkEMpBwSQIhc0OGLBAmBCaYLYBjFpt9MdjYeBPeZMu29l3dUq9V5/dHLV0ttaRuqVpWt97P88jurepUVde33+W85xyOMcZAEARBEFkGf7YPgCAIgiCGAhkwgiAIIishA0YQBEFkJWTACIIgiKyEDBhBEASRlZABIwiCILISMmAEQRBEVkIGjCAIgshKyIARBEEQWQk... | [
"Solution B",
"Solution A",
"neither; their concentrations are the same"
] | null | 1 |
science | grade-3 | read-a-thermometer | false | true | Select the temperature shown by this thermometer. | "iVBORw0KGgoAAAANSUhEUgAAAI4AAAHPCAYAAACFjuJ1AAAfl0lEQVR4nO2db2wb553nv/yjf7ZmdlO7SE0O2gL2asniiq5rm3x1e7BKHoLmUFlq3hwghrptgUVEE7vZxcG0hXtxuEqWroftRrT9YosWVCTcvdiIqnx3QXfFODjsLhrykBZbZEtGyatgqPzZ2hcPldiSSM69UDhLSpQiz8OhZ/z7fQAh1gznmcfJJ995npnh73HdvXtXB8M8Iu7H3QHGmbA4jClYHMYU3oN26DoPfZhdXC7Xvm1txdnZ2YGmaZZ3iHEGAwMDOHbsWMs... | [
"65°F",
"100°F",
"85°F"
] | null | 1 |
science | grade-3 | identify-living-and-nonliving-things | true | false | Select the living thing. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK8AAADMCAYAAAAF8vOBAAC970lEQVR4nOz9x5JtWZKmiX2LbXKIscvcPTIyo6o7u1EDCJhAMMGrQAQvhgFeBdIzTCDVLQ3J6srKiMwIDyf3XiOHbLIYBrrWPvuYX4+KCM9BQyS3i7nZNXLOJrp0qf7666/q//2c83+/hb3h345/O/5XeRwi/MMJ/jjDvYX/6518X/+b4f7b8b/2Y2/gv9/K18d4+b7+N8P9t+P/H45qpz5fvme/9Iv/w//z/0FKiZQSAEoptNbLz2MU8885k3Mmxrj8fkoJgwJ... | 1 |
math | grade-1 | compare-money-amounts | true | false |
Which is more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAlYAAACYCAYAAAAm2KfyAACTz0lEQVR4nOy9d7hcZ3Xv/5ne+8zpvavrqHfLsuWGDcYYAza2KaaEHiCX3B8k994Ewk25SS4JSeBCsCEYXADLvUiy1bt0pFN0mk4vU870Xvfvj31mYwFJLCNjYu/P8/ixrTNnNO8778xee63v+i6FIAiCNwejKYgXoSAgIyMjIyMjIyPzGlArwKKCdiNUakHhzQrCydib/bJkZGRkZGRkZP5rs9EK6pGU+D/VWug0iVGXjIyMjIyMjIzMf068CENJmM/BcAqUsYL... | 0 |
math | grade-4 | interpret-bar-graphs | false | true | Mrs. Martin polled her class to decide which flavors of popsicles to bring to the party on the last day of school. Did more children vote for grape popsicles or strawberry popsicles? | "iVBORw0KGgoAAAANSUhEUgAAAYwAAAI1CAYAAADFFM1qAABYxUlEQVR4nO3deVyVZf7/8ReLyHIQlFAWwRBLy9wQM8ENzYzS0jLJasrJqWxyTGsqdKaZNhuavi1WY5bZ5IzaZplmppamuC9oaikaBinIKqCs4gF+f/jzjMR21MO5T/B+Ph498tz3fe7rc8nxvLmve7mcqqurqxEREWmEs9EFiIjIb4MCQ0RErOJqdAFijLKyMsrKymjXrp3RpdhcQUEB7u7ueHh4NLptTk4Oqamp+Pn50aVLl4tq7/Tp02zatIm8vDxCQkIIDQ0lJSW... | [
"grape",
"strawberry"
] | null | 0 |
math | algebra-2 | outliers-in-scatter-plots | true | false | The three scatter plots below show the same data set. Choose the scatter plot in which the outlier is highlighted. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUYAAAFGCAYAAAAW1zbwAAAozUlEQVR4nO3de3xU5Z0/8M/MkMlAkgkZk1DBkPnpBBZqjJIwMcK04pYpXna7Kkio4iWxLUaDsb60sKsvsmyLOxJZRaCBbZu6tllBvNTtoqyvCqQNIZlsCgKJGliGRNBkcHJhksxMLuf3R8yROUm4hGcuYT5v/yDnmZP5PhPMh+ec85zzqCRJkr70Ace6gbP9QJ8EIqKIMkEFxGmAtEnAFC2g+tIrSTWdoe4WEVF4yNYDExq7Bzeu1gIzYwZTk4gokpztBz7tAr7... | 1 |
science | grade-3 | 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. | "iVBORw0KGgoAAAANSUhEUgAAAcoAAACBCAYAAABAdPrHAAAMfklEQVR4nO3db2xU9Z7H8c/MtNOBdqnQlr0txdUwWBdvJDeItWBcrRHxwY1NNkW5+ujuA11Fr9dolPhvE2XDGjUCG2hW1yYG1ksI9gnhATYUp7AqFFvU+GcpFkE6CBeZdtGOzJ+zDxpmb7X315lhzpxzpu9X0qQ9PXPme358v3zmX2d8lmVZAgAAk/I7XQAAAG5GUBZJW1ubfD7fhK+6ujrdfvvtikQiOR3rs88+k8/n0/79+3OuI5VK6dlnn5Xf79frr7+e8+WBUuG... | [
"The magnetic force is stronger in Pair 2.",
"The strength of the magnetic force is the same in both pairs.",
"The magnetic force is stronger in Pair 1."
] | null | 1 |
math | kindergarten | represent-numbers-with-shapes-up-to-3 | true | false | Which group has 3 hearts? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAGeElEQVR4nO3cP0yUdxzH8c/haUGgNp4pFUgYjDCYSNKaqpu6qkx20cRVVhK7dNDUdCuJKyZOJJg0dUJxBDeNcbFJh8My0IBKWowR8F8hT4fHM23hyh333D2/z+P7tcgf7+H7zfPO5f7noiiKnr2TfnslLa1Jq5GA4ORzUvs2af9OqWOHlHv2NooevEx7LKByhz+V8o9fxd/s3SH1tcZVA6FZWpOKK9LTd9L0K6np5Wr8C6JFyNq3xY1K0vKa1LT2j18AISs1+lc... | 1 |
math | kindergarten | fewer-and-more-up-to-20 | true | false |
Which group has fewer? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAjQAAABOCAYAAAA3rYyNAAAVLUlEQVR4nO3dW6xl933Q8e//sm77es6Z67HxjDOO48RWRNNCK9xEiUqRKkpUVETJQwOlIKVQIYQEiAdS0SJE8wJVxGOfQFEFNC+J1KKmCgIhRBOlUJTYjj1pUl/m4jPn7LNv6/q/8LDOzDiuPTPOOWOfjX4fyTqz5+zL+i7Pw09r/fdaKsYYb7RwtYSlBxcRQgghhDjVrIKxgScHcCEFdaOJ8WuL93qzhBBCCCF+MD82AftS2T/YTeGpYT/tCCGEEEKcZksP317... | 0 |
math | grade-1 | time-and-clocks-word-problems | true | false |
Justin and Todd went for a hike. They started down the trail at 10:00. The hike took 2 hours. What time was it when Justin and Todd finished the hike? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJYAAAA2CAYAAAAlHWAMAAAF7UlEQVR4nO3dW0hUexvH8e9SOzhuZ08HGsZDRIdtEZN0UQYF2WgXkW8mYRqYhwsxiA5XJQRZ0EURdBME3QSVBip0oRMEFc6QXvR20QEq0iIQa4xstOZVnEl53gv3zG4Y2znbFrrH5wMD+qxn/mv9hx//WbMGZhkiIv0heDMCgXEYE5SKW4oB6cmwxgL2+WD0B0X++3WmD0slkjwrpPSMTPzjmA85aROpUypegXF4PQy+EHSPQNLXsYkNGio1HenJExkC+N84JI1... | 0 |
science | grade-2 | classify-rocks-and-minerals-by-color-and-shape | true | false | Select the light gray rock. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAADwQUlEQVR4nOz9V5BmeXreif2ON9/5vE2fleWruqrdzDR6DGYADEFgSQo0q1BshK7Fa12vdKFQ6EIh6UIRUixXlJaiGKsIUtwlsUsCIAaD8T3dPe2rqstmpc/P++OtLk5WtZmeniEGsxiA9UZUfFmZ53Pn/J/zf83zPq+QZVnGM3tmz+wzTfyr/gDP7Jn9OtszgDyzZ/Y59gwgz+yZfY49A8gze2afY88A8sye2efYM4A8s2f2OfYMIM/smX2OPQPIM3tmn2PPAPL... | 1 |
math | grade-8 | describe-a-sequence-of-transformations | false | true | What combination of transformations is shown below? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEyCAYAAADA5Kd8AAAbJ0lEQVR4nO3de5TVdb3/8ZelgJKg4o3xfklTvOEolnLsZ8fDUcv70U5qibef2smyNPGGmWjeS8UT8vNeakUH85Iel11MQ1N0g4ioEHhJncELKhjCYDK/P6aZlWIMzHzYG5jHYy3XYg/7+3l/0HHNk+/67L1XaG5ubg4AAFDEJ2q9AQAAWJ6sWOsNsHw55Z53MvG192u9DZYD2627Ui7bZ7VabwMAFtuHArtSqdRqHywnJr62Ya23wHLiqen+ogbAsmmBO9j19fVV3UC... | [
"rotation, then reflection",
"translation, then reflection",
"rotation, then translation",
"translation, then rotation"
] | null | 3 |
math | algebra-1 | write-compound-inequalities-from-graphs | false | true | What compound inequality describes this graph? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAOPklEQVR4nO3df1BU9b/H8ecKqIAKGiQQqJFpCcpVVMBf6TSRRio/MiS5xdiUNv2wvtnoNN0umnrr5o8ybRzGH5TFmAxIGpDMUECibkAKgjJqEwL9QEiQkAvL4t4/uGwhoLuwl7NnfT/+cj/rOK/3rJ/d9znncz5HYzAYDNiQpKQkNBoNMTExSkfpF6nDukgd1kXqsC5Sh3WxlTqEUDN7pQNYWlVVldIRLELqsC5Sh3WROqyL1GFdbKUOIdTM5Aa7ra2NoqIiMk5/ycO... | [
"$x<-6$ or $x>-1$",
"$x<-6$ or $x \\geq-1$",
"$x \\leq-6$ or $x>-1$",
"$x \\leq-6$ or $x \\geq-1$"
] | null | 0 |
math | grade-8 | mean-median-mode-and-range-find-the-missing-number | false | true | Judy has the following data: If the mode is 2, which number could d be? | "iVBORw0KGgoAAAANSUhEUgAAAOEAAAAkCAYAAAB/ll19AAAGPElEQVR4nO3de2xb1R3A8a+vb2LHebWp4ySNEx7NsxX0BRmlaNMKbdSSPngIIRVBkcpLgJiQJoGE0DRp+2+bNtCAamsHlEdBIGiV8pAq3i1pmzZNaIhDSUtjJyEPx4nt+nVt7w83Ub1uol3uubcl5/Ofj6/O7xzn97PvOdfOtaTT6TSApkE0CqkUkEaSJBEsoChgt4Oqnm1Kp9PpWBRiMXPHJkmzjc0GNjuomiYLUJLMEIuBVQUlLgtQkkwTj4GSTJo9DEmavZJJUNJ... | [
"2",
"3"
] | null | 0 |
science | grade-5 | identify-magnets-that-attract-or-repel | false | true | Two magnets are placed as shown. Will these magnets attract or repel each other? | "iVBORw0KGgoAAAANSUhEUgAAAdsAAAC6CAYAAADmped/AAAtiklEQVR4nO3dd1gUV9sG8JvOUpciSBVBimIXrKjYNdbYYi/RaKqmR6MxiUZjfE00xcSSxIY9KpZYsKJGUURsKCAivQnS29K+PywfKiDszuyZmX1+1+WFyu6ZGx145sw5c45WVVVVFQghhIhWZHY8YnKTcD83GamFWchTFCJPUfTkY/VfRXhYkgMAsDQwhZm+8bNf5tV+b6ZvjEYyOdzMHeBm7gAPuRNkugZsv0iR06JiSwghwhedk4BbWbGIyUnC/bxk3M9NRkxOMhI... | [
"repel",
"attract"
] | null | 0 |
math | pre-k | addition-sentences-up-to-10-which-model-matches | true | false | Which shows 1+5=6? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUQAAABKCAYAAADDly0CAAAMVklEQVR4nO3dTYzc5n3H8e9Dcsh53R1pZVnSBorgWFISR45tpbDjFAUKtEpSxCcjhxiFj83FLSCg6C09FCiKoEB6CZrk2B6KJsc4dYLkEhQtEqgVgsQKEsmCoCrx6nWlnZ13Dvk8PXBG2l2NZoez88xwR/8PMNCuZuYhf+TiT/Ih+VAZY8ytEK62oB5DZBBCiKeCp6DiwskiPOuDutU15sLmvGdLCCHm69Ul8D5oJb8c9eF0KamWQgjxNKjHcLkJN0O40gJnM0r... | 0 |
math | kindergarten | count-on-ten-frames-up-to-10 | false | true | How many squares are on the frame? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACQCAYAAAAyRxwtAAADqElEQVR4nO3dMWrbYBiAYanxYNItS67hNCfIUXMR3yBtj+HJW0vBMeocUgiCV1VrP88m0PB928vPjzTuD6dpAGB4ut+sPQIAF+DT2gMAAMAlEdgAABAS2AAAEHp34fDx7maNOVbzcjy/eba//a+J/c8fvwQAMznBBgCAkMAGAICQwAYAgJDABgCAkMAGAICQwAYAgNCs/wLf/Po+jD++LjXLIqbPX4bzdrf2GAAAXIlZgT3+/DZsjs9LzbKI13EcBoENAMBf4ooIAAC... | [
"1",
"5",
"7",
"6"
] | null | 0 |
math | kindergarten | compare-two-groups-of-coins-pennies-through-dimes | true | false |
Which is more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAlYAAACYCAYAAAAm2KfyAABzPElEQVR4nOz9d3xc53Xg/39umTt9BgMMeicBEGDvnVQvVHWR5RY76544/jqJ7d0Up2zKJtn8srHXceKsbCex4ibLlizJqlSlKLH3hkKi9zbA9Ln198dwxqLtJJQEWrL0vF8vvkhKJIA7GJ577vOc5xzJcRxnXIfzaUhYYDoIgiAIgiAIl0GVIKhAqw8qNZDGc45zMP5Gf1mCIAiCIAi/2jaFQO1J539TrcESfz7rEgRBEARBEP5rCQu6UjCmQ3ca5LiZ/x8iqRI... | 0 |
math | grade-4 | acute-right-obtuse-and-straight-angles | false | true | Is this angle acute, right, obtuse, or straight? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABwCAYAAAAkAwevAAALtElEQVR4nO3dW2yW930H8K8P2MY2mEBwAoSTjcmpEGBTk07rRpRMu1irZNLUaU2VJt20u0XNMk1tpS6Z2m2dNinJLqdVJepBPU1KUynSDtHSdWm7NQEylkMx5uCACRCIobbBgO1dvK9tjM/2GxPHn8+Nec3jl/8LN19++j3fp2xgYGAgAABASZRf6wMAAMAHiYANAAAlNCJgd3b15eEnW3Pd7/8sZR97KQ8/2ZrOrr5rdTYAAJh3Kq988dCT+/OD/z4z9HrXCyczkGT... | [
"acute",
"right",
"straight",
"obtuse"
] | null | 0 |
math | grade-3 | identify-two-dimensional-shapes | false | true | What shape is this? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADaCAYAAACchDUnAAAPo0lEQVR4nO3d7Y9TZ3oH4Nv22MPYhARSVVA1qCRkFzVqVrv9d6v2U7VSv1Xqt7aqICELy2YkiJpN2kREGzq7iZh3jz1+Pf0A2xJYCDNzXp5zfF1SxAeS8aNIln++5zm/u5VlWRYAAEAu2lUfAAAAmkTABgCAHAnYAACQIwEbAAByJGADAECOBGwAAMiRgA0AADkSsAEAIEcCNgAA5Git6gOkaPs/hnH035PoXuxE9+La0z+f/vNmx9cSAABeSsB+zvxgGYf3x5EtIha... | [
"triangle",
"hexagon"
] | null | 1 |
math | grade-6 | changes-in-mean-median-mode-and-range | false | true | Look at this set of 8 numbers: How would the range change if the number 34 replaced the number 13 in the set? | "iVBORw0KGgoAAAANSUhEUgAAAT0AAAAkCAYAAAD7Ne16AAAJm0lEQVR4nO3da1BU5xnA8f9eYJeFXRCW6+IFuQiooMQLFnPzAjGaGjNJaibXTtNJOmknSdPpJF96+dBOvnXSTttMJpeaMY1Jk0yrUaPBBIMR1CBBFAUUVBZBuUO47LK7px+Wi8sinIQ9Z014f994z+J5eJ6X51zec1AjSZIE4HLB0BB4PICEIAjC958GtFowGkGvHxmSJElyDIHDEdzYBEEQlGQwgMEIerdLNDxBEH74HA7Q6UErGp4gCLOF0wFatzvYYQiCIKjD7Qa... | [
"decrease",
"no change",
"increase"
] | null | 0 |
math | grade-4 | compare-fractions-using-models | false | true | Which fraction is greater? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC5CAYAAAAS5EjTAAAJ1ElEQVR4nO3dX2jV9R/H8fcZi2xn7qIgmiCEEIO1WkS2/oBLLOoiDBwLpIIRrD8gUgriTXVkQWYg0oVBBELQjUJ/nARCuH5TtiEskCAMMTODpAXdnJpzF+d3kT/px89+Tnif8/V4Hg/YxTxHvq/hF3z64cuxVKvVagEAAKRoK3oAAADcSAQ2AAAkEtgAAJBIYAMAQCKB/TcTExPxyCOPRGdnZ6xatSp27dpV9CSa1MLCQmzfvj36+/ujq6sr1qxZE1NTU0XPAgAaoOR... | [
"neither; they are equal",
"2/3",
"8/12"
] | null | 0 |
math | grade-6 | classify-triangles | false | true | Is this triangle scalene? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACUCAYAAACp1l47AAAdEElEQVR4nO3dfVTUdd7/8dcAAgboFDbwk1yuH4mbliIZrYsnfrlYy9Uvzu5x69S1u2VbvzZ3r1yvTbMrLVfXm25cFdPUzFtS8zZ3yZZUUpOSjbRQEEzDGwpDvBtuRhmYYX5/GEiXN4DMzHeA5+McTgeY+X5f0+mPVx/e38/H5HK5XAIAAADgFn5GBwAAAAA6Ego2AAAA4EYUbAAAAMCNKNg+avXq1QoLC9OGDRt+8POSkhLde++9Cg0NVVxcnPbu3WtQQgAAAFwJBds... | [
"yes",
"no"
] | null | 1 |
math | grade-6 | understanding-percents-strip-models | true | false | Which model shows 80%? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUsAAABLCAYAAAD5wKUqAAACKElEQVR4nO3XMVITYRjH4XeTQIEgjSPjAdQjUHEEa2qP4Qk8hjWtHoGOGyD2xtGGQDIDkvksdiKW/8wICfA8TXZnd2fer/nNm6611sbXVd9mVRfzqptWAE/eqKvaGVa93qra26zqxletnUxWPRbA+tp/XjU6m/U3rzar3j7rSwrw1F3Mq06nVd+vq77OqgaTm/6BUALc2hn2XayqupxXDeb/PADg1qKLv1vVYLWjADwMYgkQEEuAgFgCBMQSICCWAAGxBAiMlv3... | 1 |
math | grade-4 | nets-of-three-dimensional-figures | true | true | Which figure will this net make? | "iVBORw0KGgoAAAANSUhEUgAAAM0AAADNCAYAAAAbvPRpAAAEnklEQVR4nO3dMXLTWBzH8b92mKE03XbmBA4XgDqXCMeAQ8AxkktQJxdIfIKo2y4uqbQNzsSxd5Yf9luRt59Pxxuikcb++smeJ2mYpmkq4Kf9MfcOwEvzau4daGEYhrl3gR96PJHpbqYRzO+lx9ejy5mmqurDt/dz78L/3vX5zdy70ER3Mw20JhoIiQZCooGQaCAkGgiJBkKigZBoICQaCIkGQqKBkGggJBoIiQZCooGQaCAkGgiJBkKigZBoICQaCIkGQqKBkGggJBo... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUkAAADNCAYAAAA13ILSAAAYuklEQVR4nO3de1hUdf4H8PcMIILgoALmJYdVkCQRbaWsVaEybdsMS93VUsG8lbaK5rU0xtS8JmPu9kvcVhRtdUNxM1svGZCX1ZQESbFMBBK5xG24OVxm5vfHxBRJR4GZOTOH9+t5fHg8j57zOZ6Zt98zc76fr8xgMBhARPdMJpOJXQJZkVzsAoiIbJmj2AVYAv+ntx28USF7J7mRJAPStvB6kL2T5EgSAIYdHSp2CW3eyVGnxC6BqNUkN5IkIjInhiQRkQCGJBG... | 0 |
math | grade-8 | identify-congruent-figures | false | true | Are these shapes congruent? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEbCAYAAADgR/OCAABAq0lEQVR4nO3deVxU97038A8zww4uILK4sM2Iu1ERFwQOCsyI1FQTGzWxxmrytDetublJb5qkTaomfZLmqdW2iWl7jTE3S5dYE2PijIIcUBEBF0CJOiOIoiDgxirbzPPHyCB1RWc4zMzn/Xr5snPOMPOZlIGP5/zmfF1MJpMJRERERERkFTKpAxARERERORIWbCIiIiIiK2LBJiIiIiKyIhZsIiIiJzN//nysX7++27aOjg54enrizJkzkmQiciQs2ERERE6mqKgI48a... | [
"no",
"yes"
] | null | 1 |
math | grade-1 | match-analog-and-digital-clocks | true | true | Look at the analog clock: Which digital clock shows the same time? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABOKklEQVR4nO3df3RU9Z0//ue9d37lx0wSwu8E+aVCogXElkSt2FaDn4r17DHYSu0vbKv2nGVDt4LbrdAV7O5RcAX1nFat0G5df6yE755W2ppodzcVSbRFoDIRlQBmImAISW5+za977/ePIUOGzI/3TOZn8nyc4yEz874z7yZzO69539f79ZIMwzBARERERERJIWd6AkRERERE4wkDbCIiIiKiJGKATURERESURAywiYiIiIiSiAE2EREREVESmTI9AcoCmgFoBozz/wZ... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA5oAAAEJCAYAAAD1mFhPAABf30lEQVR4nO3de3hU5bk3/u+aNackk0nCMZAgR4UECwFbEkWxrQbaYr32S7CVamuxnlprwQq4967QLdh9vSJWUHvSLWhr1VbCu39auiVRu5uCJNhioDIRTQLIBIhJSLIySea8fn9MMmSSmcxakzkm3891cWUOz1rrIczo3HPfz/0IsizLICIiIiKiqBAEIdFTIEo4TaInQERERERERKMLA00iIiIiIiKKKgaaREREREREFFUMNImIiIiIiCiqGGgSERERERFRVGk... | 0 |
math | pre-k | count-sides | true | false | Which shape has 5 sides? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAEgUlEQVR4nO3dy2ucVRzG8Wcml0VtdecF3HrBjcv+Cf6bioilUhTFhRZx44Wk1hKRxrQDtRBqbCCQTC4kmenr4lgSSrRp5rzPuX0/MJBhyMxZfHkT8js576Drum7jSBrtS+OpNOkEzGx+IF2Zk966JL22KA02DrtueSf1slCzqy9L8/f3w5M3FqV3XgoVArMaT6W1PemvI+nevjTcmYQXiAwxXZkLTUnS7lQaTk+9AMT0tKnjThqmXQpaQWiwIDRYEBosCA0WhAY... | 1 |
math | grade-7 | changes-in-mean-median-mode-and-range | false | true | Look at this set of 10 numbers: How would the mode change if the number 36 were added to the set? | "iVBORw0KGgoAAAANSUhEUgAAAYkAAAAkCAYAAAB8KMY5AAAJz0lEQVR4nO3daXRU9RnH8e8syWSbSchGNsCQPUACESIUq4gkaMSK1VqsWrWttedYj8e2p/VN7Zu+bo+tVmoLVqsVLIdaLUEQNCwaSIjsIRshhIQg2RMmyay3LyYJDslkJuZeGY7P513u3Mn/ye/8M8/ce/9zR6coigLgdMLICLjdgIIQQohvGh3o9RAWBkbj6CZFURTbCNhs17c2IYQQwcNkAlMYGF1OaRBCCCG82WxgMIJeGoQQQojJ2G2gd7mudxlCCCGCkcsFekU... | [
"no change",
"decrease",
"increase"
] | null | 0 |
math | grade-8 | multiply-polynomials-using-algebra-tiles | false | true | Which multiplication expression does this area model represent? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEFCAYAAADZm5BpAAAXR0lEQVR4nO3dbWzd5Xk/8Os8mBibmARicJwUaEyBpF3UxEsLomxT27RJhVpNSBOtKlVIfVFppa0Q6oto20vUTtpTq6gICU1du42V0opJGxkWSxtKm8LikJIHILVJ3MZ27IBjJ3bih3PO/wX/pjgkqeJzO8c/n8/n3bmt6LryVSS+uvn9jnOVSqUSAABAEvlaLwAAAIuJgg0AAAkVL3TY3TcVg2PlK71L5rW15GPjTVdd8GcynZtLZjrcFQMTvclnrmxaExtbN9f1TAB... | [
"(2x+3)(x+3)",
"(3x+3)(2x+3)",
"(2x+3)(2x+3)",
"(3x+3)(3x+3)"
] | null | 2 |
science | grade-8 | use-scientific-names-to-classify-organisms | true | true | This organism is a western gull. Its scientific name is Larus occidentalis. Select the organism in the same species as the western gull. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADMCAYAAAAGVtdxAADriklEQVR4nOy9ebxlRXW3/6yqvc9w5+6+PUIzdDM0CDQgCEJAEQdQgihGAU1QFOMUfR0xJjEvIT/1VUMcQpQ4BE1QjJBEiVEQnBgFAZlk7gaaZui573Cmvavq90fV3uec282k1wnr+Xwu3HvOHmufe3vVqu/6LnHOuTzPsdYSiUQikUgkEolEZgelFEmS/ObPG4P7SCQSiUQikUhk9rHWkuf5b/y8Kgb3kUgkEolEIpHIr4ffRqytfuNnjEQikUgkEolEIr82YoAfiUQ... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA6IAAADMCAYAAABp7h4wAAEAAElEQVR4nOy9d7wkVZ33/z6nUufum8PMnRwJAygIorAiogiIqKwKmEAxr/70UXF11YdlH/VRFwPLmpF1xbCgrmIiiEpmiMMQhmFyuDNz58bOXVXnnN8fVd333pkBBsWwPP3xdeXe7gqnTlX31Kc+n+/nK4wxJgxDtNa00UYbbbTRRhtttNFGG88MpJTYtv0X368Q4i++zzbaeLqQbRLaRhtttNFGG2200UYbzzy01oRh+NceRhtt/E3CbpPQNtpoo4022mijjTb... | 2 |
science | grade-7 | identify-ecosystems | true | false | Select the temperate deciduous forest ecosystem. This ecosystem has:
long, cold winters and short, cool summers
many evergreen trees
soil that is poor in nutrients This ecosystem has:
warm, wet summers and cold, wet winters
soil that is rich in nutrients
only a few types of trees This ecosystem has:
warm summers and wa... | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAp8AAACtCAYAAAD2xRSHAAEAAElEQVR4nOz9Z3Rk13nge/8r55wBVCHn1N1A50iymaksUhQlUaIky2FscUayNRprru2xZ2x6JNlKjpJF5UCREnNqstk5oCNyDlVA5Zxz1fuhZd7btscev+v19Luu67dWfTh1AvapWg/wYJ+9ny24lKzXe1WgEdHQ0NDQ0NDQ0NDwbyJdhcUsCFKVer2ReDY0NDQ0NDQ0NPxbS1dBUK/X67e6IQ0NDQ0NDQ0NDf8+iP+fG+ev/A8i4QQGXTPJRIGnn3qJXLbEpz7... | 0 |
math | kindergarten | subtraction-sentences-up-to-5-which-model-matches | true | false |
Which picture shows 3 − 2 = 1? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAABKCAYAAAAi2W96AAARYElEQVR4nO2de1BbV37HvzwEktADZCQB5hEwAmxsFwx+4GfXzmywvVlPG7ukJRl789i+NtPutNPHbLudZLrd/LHZdjvTmXSnbrx1SY0Tb5LNjrGTtZ01NmDMyzZgQAIbEA9JWOgBeiCE+sflXuneKwkMVwYp9/OPfc49upyffl9+95zfOfcQ5/P5fJNzgM4B2L3AvA88POuOxDhAmgBoxIA6CYibdPt8rba17hYPz/LZLQMStQ6ikJkEFKcQqubhWW/YvUD/LDA... | 0 |
math | grade-1 | shapes-of-everyday-objects | true | false | Which is shaped like a cone? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAIUAAACFCAYAAAB12js8AAAUe0lEQVR4nO2deXwcZd3Av3PsvUm2uY9e9OJoaQraIuVqtbYFoeWQsxawgMiLgOKLvoi+Kh6AioqgBYQWhIrIIYocCqhAUWlLFWmhd9OkuY9NsvfsHP6xSUk7mya72d1s2/l+PvvHzvE8v81888xvnnmeGcEwDKNFgR1hCGigGlgcYcgCFEgw1Q0VdhBaYoaxrne0w7LIF04qBHl7OPGlyg5HexLGWBxZBDTYGoJmBbaFQexVEyssIY5cCqTE8QcIaiBqA1ZYHLn... | 0 |
math | grade-2 | ordinal-numbers-up-to-10th | false | true | The first picture is a bucket. Which picture is eighth? first | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABdCAYAAACfMRFHAAAev0lEQVR4nO3dfXAUx5038O/M7gqQtRISIoCkgI0RCPEOjqRLHhvFgIIdSO6Q7HrAecrIFwOpegJcnSE5HyTkzF3KNrlCIilb2LF0lceQPJF8dzE2PBL2g4OrLFHmjIFnZV5sQ24lGZtwZgXC1u7OPH8Mu9qV9mV2NbOzO/P9VLms3Z2daTXdv2719HQLsizLICIiIiIiTYhGJ4CIiIiIyEzYwSYiIiIi0pBuHezPvTLu+j8eLHqzH597OQuFiIiIiKwhqQ72v/V58bM... | [
"crab",
"bucket",
"boat"
] | null | 1 |
math | grade-1 | which-picture-graph-is-correct | true | true | Fred's class bought some drinks at lunch. Which picture graph shows the right number of each drink? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADhCAYAAADyOcJJAAAmy0lEQVR4nO3dS2xc2Z3f8d+59S5WsfimqEdbre621ILdM7G72zESOAiCrAYIjNklGGCCYIysshzA62yz8cJAnIVXAxgxxgPHhh9pzGT8yIzbcre645Y1YrfUrTdJ8VXFet/nyaJEUiU+RLJusYrS9wMIInmK5/6LRUE/Hv7vOcZaawUAAAAgFs6gCwAAAACeJwRsAAAAIEYEbAAAACBGBGwAAAAgRgRsAAAAIEYEbAAAACBGBGwAAAAgRgRsAAAAIEYEbAAAACBGBGw... | null | [
"iVBORw0KGgoAAAANSUhEUgAABTcAAADhCAYAAAAd64E2AABYKElEQVR4nO3deXxcddn//9c5s2YyWZukO5SW0hZpWcuOLGJZBVQUb+BGEFQUAYUbFEFE4L4R+apFUVkE+YEiCIpQ9t2ClB1poU330rRJmj2ZzExmOef8/kiT6TRLs0wyWd7Px4NHk/M553Ouc01aJtd8FsNxHAcREREREckIwzCyHYKIiIjIuGFmOwARERERERERERGRgVBxU0REREREREREREYlFTdFRERERERERERkVFJxU0REREREREREREYlFTdFRERERER... | 1 |
math | grade-1 | select-three-dimensional-shapes | true | false | Which shape is a cylinder? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAO1ElEQVR4nO2da3BU5RnHf7vZ3BMgEJJAokEjQaAkIlRndOptbK0VER1rL15qrdpOOx07vXxoO9PaD7ad1g/ttJ06XkAFraIdnWCVoiNamtZQY00sSIgRiISEgJBkE5INSbcfnj09u7mRwNk95z37/GaYHA6bsy/Jb5/3vOf8z/sGotFotGsYPjgB4VEYiaIoniMUgMIMWJwHpVkQ6IpEozv73G6Wokyfi2dBqPWE/GVBFizJF6sVxWuER6FlADqHYe8JCPaNyD+... | 2 |
math | grade-1 | match-analog-clocks-and-times | false | true | What time does the clock show? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEJCAYAAADhBFPCAABTSklEQVR4nO3de1yT990//lc4BVBIUA4CagIeEKwStRXFysFDrbUqru22HsH7Xrtud7vitnbf3Vsrdt12r90qrt3u9m77M/awbl1bsWpbtVbEU7GKQSuIFQiKIoKSgEJCOPz+QFIOOVwJCTnwej4ePBpyfa4r7wJ5+L4+eX/eH1F3d3c3iIiIiIjIK/i4OgAiIiIiInIcJvhERERERF6ECT4RERERkRdhgk9ERERE5EWY4BMREREReRE/VwdArmdo74RB34F2fQfa9Z1... | [
"6:30",
"7:00"
] | null | 1 |
science | grade-3 | 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. | "iVBORw0KGgoAAAANSUhEUgAAArwAAABfCAYAAAAK9RRGAAAOCklEQVR4nO3de3BUZZrH8d/pzqVDQkKABAl3CehqjcUUSgwyuxhXRFnHOJVAdCzLvwRFRV28MFz+AaqCIgoslxosUQsVllvNFEXVIgUYYQowQHCYEYcgASEBlKTDxTQk3b1/sOk1I0USOKdP99vfT1Wq0ifnvOd5K+/7vE9On5y2wuFwWAAAAIChPG4HAAAAADiJghcxrbi4WJZltfnKycnRAw88oIqKik61dejQIVmWpZ07d3Y6jmAwqBkzZsjj8ei9997r9PEAEC9... | [
"The strength of the magnetic force is the same in both pairs.",
"The magnetic force is stronger in Pair 2.",
"The magnetic force is stronger in Pair 1."
] | null | 1 |
math | pre-k | represent-numbers-with-shapes-up-to-3 | true | false | Which group has 2 stars? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAHnElEQVR4nO3dsW/bZhrH8Z+ixABV686AChcpSMBAejQg4BBvhbVqjVet0RqvXK21f0Kyes7YZs0aA53ksXIKBJDRy7VVYMQpjfoi6AZFjixTji1RJB/x+1mcwDDF4YtXD8xXfguDwWDw9lx6HUqnfenjQEDm3C1I5aL0r5L0zYpUePv3YPDz+7RvC7i57/8h3T0Kh/+5vyJtfjWsGsia0770y1/Sf86lTijdef9x+A2iRZaVi8NGJelDX7rTH/sGkGWjRv83kO6... | 0 |
math | grade-8 | identify-reflections-rotations-and-translations | false | true | Look at this shape: Which image shows a rotation? | "iVBORw0KGgoAAAANSUhEUgAABbAAAAC3CAYAAADD5XikAAASaUlEQVR4nO3dTYxVZ/0H8B906IBjCVqccg9hDHGjEWjtNXVh60tbsfiyMLVaXWgT042aYrQJVhbW1T9EN11oxEWNxtiwAKwYTG1jmrRRiT0oY6aJiYqinksdaUhbLAaYcTHMLa/58/Kce55z5/NJSM8dbr7nl5Mnt/A9h+cuiojZAAAAkpid9cdrAABIZXHTAwAAAAAAwIUosAEAAAAAyJICGwAAAACALCmwAQAAAADIkgIbAAAAAIAsKbABAAAAAMiSAhsAAAAAgCw... | [
"C",
"B",
"A"
] | null | 2 |
math | pre-k | triangles | true | false | Which shape is a triangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACJCAYAAADUvSEiAAAGa0lEQVR4nO2dTU/jVhSGT/hSO2XaRaVWXVTqpu1PmB/QHw6CYSSQmJFgA52OVFahCyfEiWNix75dmBEZJhA7uV/nnPeRRhoIEQYeJfb1e+7bM8aY24LonynRuCKaGwJgY3Z6RK+3iX5/RfTzHlHvdmbMWRr6sIBk3nxPtPNx2nzwyx7Rn981FgKwKeOK6Doj6hdEf0+JttJ58wAkAzZ5vd04RUQ0qYi2qoUHALDJZ6dKQ7QV9lCAFiAa8AJEA16AaMALEA14AaI... | 0 |
math | calculus | determine-continuity-using-graphs | false | true | Is f(x) continuous at x=6? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAABwB0lEQVR4nO3de3xU5b0v/s9kZpKZXCckkIRggghEg0kQjAiCoFiwXkCwFuu21h7bbjm1tr72aXdPT+vr7Jbj8fR66va27e6ueure3fIrioIBUa6GQiBCIOFqgFwIk2SSyWSua83MWr8/FhMyQGAG1sNkks/79VIyl/XNk7Vm1nzWM8+zlkFVVRVERERERKSLlEQ3gIiIiIhoJGHAJiIiIiLSEQM2EREREZGOGLCJKMrmzZsxceJE3H///QCABx98EO+9995FnxsMBnH... | [
"yes",
"no"
] | null | 1 |
math | grade-4 | identify-rhombuses | false | true | Is this quadrilateral a rhombus? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEPCAYAAAB4ALMPAAAkzUlEQVR4nO3dfXRUh3nn8d/oZRi9j9ALCPSCwDKYmARjbOIkbhrsLWlyum6XdbqnOWBK2bOt6y0NOetuN3Z328Zu0zre2DS1W++mjYM33mJC0zYuLgmk65hg7ACxiQ22eRMSbxIaafSKpNHsHxe4V2IG3Zm5d67mzvdzzpzzzGhm7qNz7HN+XN3nPoF4PB4XAAAAAEcUeN0AAAAA4CcEbAAAAMBBBGwAAADAQQRsAAAAwEEEbAAAAMBBBGwAAADAQQRsAAAAwEFFtt7... | [
"yes",
"no"
] | null | 0 |
math | grade-3 | correct-amount-of-change | false | true | You pay $2.05 to buy a brownie costing $1.37. You receive the following change:Is this the correct amount of change? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACSCAYAAAB/j70mAACX6UlEQVR4nOz9eZzddXnw/78+y9n3mTP7Plkny2QnGwlbAJVVRRBscam4tLa3Vdt6l/tXW9vetd/W2nqrrWvFKoqAIAiEnUBISEL2bTKZzL6dObOcffmsvz8m5wiKmGCAIO/n45FHQpic+VyfOX9c5/pc7+uSbNu2EQRBEARBEAThnJDf7AsQBEEQBEEQhN8nIsEWBEEQBEEQhHNIJNiCIAiCIAiCcA6JBFsQBEEQBEEQziH1zb4AYZZtmeRzObLpFJl0imQiQS4xRbZ... | [
"yes",
"no"
] | null | 0 |
math | pre-k | tally-marks-up-to-10 | false | true | Count the tally marks. What number is shown? | "iVBORw0KGgoAAAANSUhEUgAAAMgAAABBCAYAAACU5+uOAAAIR0lEQVR4nO2dX0xbVRzHv127tEBZSVlSOjCgjLJoIibDDJ50PA7G0xYT0ZiYmPGoxr2pc8YHEx/2CtEHs2QkJiZGNhaf1vngINolY8sWW7JIY+nAUIS1QHGM6wPc/oH23nvu+d3ee9vzeVgybvnee/n2d87v/s655zgkSZIgEAhKcsjsCxAIrIyLSmhjO42F9RjqnF60ebuFnslY/X6trifDHSCxtQim5scxtxbJ/azO2YiBthGcbn0b9a5GZr1wYgKzqTCJXiITxVR... | [
"10",
"3",
"4",
"8"
] | null | 0 |
math | grade-6 | reflection-rotation-and-translation | false | true | How has this figure been transformed? It has been... | "iVBORw0KGgoAAAANSUhEUgAAAPoAAABkCAYAAACvgC0OAAAFEElEQVR4nO3dP0wbZxjH8YfKDSDk4gBS8RADJVL6Z0BqGFopko+lS7t0hMmWOrUdurRrj7GZunRqJHsjU8RAlgxQo1RqK9K6QyKVdigsJiqN3CBKSSu9HRwCytmcOc72+97z/UgR0vn885vjfuEwl4e+fD5vPM+TOFQqFTHGCHnR89bW1mLJ6jXP86w+ztryUp7nie/7sQQuLi6KMYa8c+QlBeeVXXkvxJIEwGoUHVCAogMKUHRAAYoOKEDRAQUoOqAARQcUoOiAAhQ... | [
"reflected",
"translated",
"rotated"
] | null | 2 |
math | grade-8 | compare-linear-functions-tables-graphs-and-equations | false | true | Function A and Function B are linear functions. Which statement is true? | "iVBORw0KGgoAAAANSUhEUgAAARAAAACZCAYAAADnwmWxAAAcb0lEQVR4nO3de1xUdf7H8deMIooipmDgDURW1DRJUUQRVyRLqcwLbq6apqm7YWirtqm5dPvZgpaZCpqrQt5IQdHccWHLKxViruYl7aJIWbB4BwRUxu/vD5eTE6BwBAbo83w8eDycc86c8x488+H7/Z6Z8zUopRRCCKGD0doBhBA1lxQQIYRuUkCEELqVqYA4OjpiMBhK/Tly5Eglxyy76OhoDAYDXl5eVX7svXv3ar+Tbt26VfnxfwuOHz9+13OxSZMm1o5oYfz48Rg... | [
"The slope of Function A is greater than the slope of Function B.",
"The slope of Function A is less than the slope of Function B."
] | null | 0 |
math | kindergarten | represent-numbers-with-pictures-up-to-5 | true | false | Which shows 2? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAjVklEQVR4nO3daWwc933/8ffM7L0kl8v7Eg9JlExSpCVZ1mHLjtMcRuIjTdu/LbstkiAIXLRAkSYPgthp0SRAg6RNizZtGqdxYRdGnMBt0zpOnbiNDwmWZUuyTJEUZVK8KZ7LXe59zc78H9BmZIuiRIniiNzvCzAsa2Znfh/vfnZ2ZndmFNM0zakMnEtANAe6iRDiOrEpUKhBswcqHaBMpU3zzYjVwxIi/+wrAlt/YuE/qh2w3bvQTiHE9RHNwTtxmMxAXwLUiL4... | 1 |
math | grade-2 | identify-repeated-addition-in-arrays-sums-to-25 | false | true | Which addition statement describes the array? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD6CAYAAACbKDARAAAZv0lEQVR4nO3dP2wT5+PH8Q8/sUSK5KMLkCVuMkaKD8ECqpTLEMbGXsqCyjG2HXJVKavtLt8J4Uwtk6/tRgcuHWE5q1EmKj1EMBodCyILuUqp0i2/IdglDVJ09nPnC3q/JCuRc3+ej+Thoyfn5znTarUOBJxyzWZz0kMAAACQJP3fpAcAAAAAfEzODn5hBhCnUbvdnvQQAAAAjmAGGwAAALCIgg0AAABYRMEGAAAALKJgAwAAABZRsAEAAACLKNgAAACARRRsAAAAwCI... | [
"3+3+3+3+3",
"4+4+4",
"4+4+4+4+4"
] | null | 0 |
math | grade-1 | two-dimensional-and-three-dimensional-shapes | true | false | Which shape is two-dimensional? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMwAAADMCAYAAAA/IkzyAAAUMUlEQVR4nO3d229cx30H8O/MnHP2yjtlXVxLSWo5qZuicJLCCYooQJsCVtqHNgGat77kX+h/0L+j6HMLNEiBAEmBFGjsh7RBo7wkTmI7F1u2RIUiKZJ7O5eZ6cOcvRzunjVH5JK73O8HECSuVrtH5H73N/ObOWeFtdbuJMB7HeBYA5kFEeUCAawo4G4duB4BYie29sdHl31YRPPv9VUgeLfjvrgZAZ9uuDQRkXOsgV+1gccJ8E4HkEeZ+wuGhWjcinLZAICWBqQ... | 1 |
math | grade-8 | identify-reflections-rotations-and-translations | false | true | Look at this shape: Which image shows a translation? | "iVBORw0KGgoAAAANSUhEUgAABbAAAAC3CAYAAADD5XikAAASr0lEQVR4nO3dX4xUZ90H8B90W4QRqAYp50g1gWSjERA7pl7YWm1rLalemFqtXmiNaWK0EVMv/MMF7aUxeROSV2O8gGiMDReAFdOmtjHVNiqxBxGzTSSCtTZnqGjTdLsUU9h9L5YdoUBeoc+Zec7s55OQM7NMvvPL7LMH+M7hmQURMRMAAEASMzP+eg0AAKksHPYAAAAAAABwPgpsAAAAAACypMAGAAAAACBLCmwAAAAAALKkwAYAAAAAIEsKbAAAAAAAsqTABgAAAAA... | [
"B",
"A",
"C"
] | null | 2 |
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? | "iVBORw0KGgoAAAANSUhEUgAAAPoAAACnCAYAAAA4/EEUAAAoTklEQVR4nO2de0xU59b/v8AAZSYgglOpu56xiK9gxlpEotZ2GzUVWtvI5feCWKmXNAU9TXqU5qhF6/mDi759j5f0xHpJ26jHg8YapGkCNrUXqEGRqXokghU1XIZLwRmuAwPDPL8/eNmHEQbmsi8zw/NJdjKb2exn7TV77Wc/a61nPV6EEAIKheLReEstAIVCER5q6BTKFIAaOoUyBaCGTqFMAaihUyhTAJnUAgDA999/j59//hn19fVobGyEVquFVquFv78/GIYBwzB... | [
"impossible",
"probable",
"certain",
"unlikely"
] | null | 2 |
math | kindergarten | one-more-with-pictures-up-to-5 | true | true | Count the shirts in this group. Which group has one more than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABmCAYAAADxjOYpAAA3Y0lEQVR4nO3deZAk133g9+97edXZR/Xd091zXxhggMFJEuABgKdMEpIoEZRD2t1QbDi09sbGruQ/vGt7HWFbG3KEY7WrXdmOsHZla0UtKUqmRIinSJG4SOKaAcDBYG7M0cf0TN9d1VVZlZnPf2RVdff0PajqmZF+nwgSPdVZla8q60X++uUvfz9ljDEIIYQQQgghGkLf7gEIIYQQQgjxt4kE2EIIIYQQQjSQBNhCCCGEEEI0kATYQgghhBBCNJAE2EIIIYQQQjSQBNh... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA7sAAAB+CAYAAADlVwZsAABrSUlEQVR4nO39Z5hk2XmYCb7nXBc+IiO9Le/bVftuoBvdaKAbAIEGQYAAaERyJY6Wkma1I3J3H2lmNTvPzFCjHxqSo5UoacVZLd0QhiRAeI82aDTaVtvyvtL7zPBxzdkfNyIy0lZWd2RWdeG8z1OVmRE37j33nvvd+L7zOQEoNBqNRqPRaDQaTUtQSjFehbNFyPngaW1bo9kWTAFJA/bFoNsGgTZ2NRqNRqPRaDSaljFeUby4eL1HodH8fHNfCszrPQiNRqPRaDQ... | 1 |
math | grade-4 | elapsed-time | true | true | Look at this clock:What time will it be in eight hours and forty-five minutes? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADICAYAAADSmpa3AABFIklEQVR4nO3deXSTZdo/8G+SLmkWGqiQRJEWbaSvCg11HIpIAUfF0lFAhfJzo4KKjmxuM6i88+o7ojijo2VR0WmlAzoUWcehbC7QihSXtiBqISitIEnRtmmT0HRLfn/0bWjI1iVb2+/nHM5pnufO81xNwzlX7lz3dQvsdrsd3fTlyVJ8pivGcf0P+KnmNCqrT+PkL5XdvRxRjw0fHI/4uKGIj7sUV6gux/WaVPxmuDbUYREREVE/Iuhqgr3+4AfY9vUOfKY7BJPVHKi... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA7gAAADgCAYAAAApDMpcAABUPUlEQVR4nO3de3xT5eE/8E+SXkIuNFAgiYItQqRfLzRUHSBS0KmI/SJFhfLzRoFNdHKb0w2V78TvRHHTaRFU3JfaTnQU5TbH3QsUGUVnWxBdMShF0KRoISUJTdMm+f2RNTTk0tvJtZ/367WXzTlPznlI83Sf55znPI8IgBtERERERCQIt9sNkwM4eg6wOIEWpm2isEkSAUoJoJMB6hRABHZwiYiIiIgEY2py49Oz0a4FUc8zsjeQFO1KEBERERElEsM5z3+1KcA... | 1 |
math | grade-6 | occupations-education-and-income | false | true | This table shows information about two occupations. Complete the sentence. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADCCAYAAABzAbXRAACcIklEQVR4nOzdd1gURx/A8e/ROaqgYlewi4gVxYYiloglgjVqRMWuKPbYiR27ERG7JsausWHskYjEGozRGDXYsCNKh4OD9w9eVo56FMWY+TyPT8Le3Ozs3O7e72anyJrOfpuCIBSC70fL6b8mtqiLIQiCkCVxjxIE4WPRCJxjWtRlEARBEARBEITPhkZRF0AQBEEQBEEQPiciwBYEQRAEQRCEQiQCbEEQBEEQBEEoRCLAFgRBEARBEIRCJAJsQRAEQRAEQShEIsAWBEE... | [
"fashion model",
"fashion designer"
] | null | 0 |
math | grade-5 | compare-decimals-using-grids | false | true | Which decimal is less than the one shown in this diagram? | "iVBORw0KGgoAAAANSUhEUgAAAJwAAACcCAYAAACKuMJNAAAB9UlEQVR4nO3WsW0CQRBA0cGiABpz5DqQM4ogs6jDkRujg3V0FnJG8pHxe9mdNKcN/o5ut9ZaA5GXRx+A/2V/+3C4nB91Dp7c9XiamZsNJzYK+98v3t9e7/7Ix+eX2Ttntxt/j20p/MXZjX84UoIjJThSgiMlOFKCIyU4UoIjJThSgiMlOFKCIyU4UoIjJThSgiMlOFKCIyU4UoIjJThSgiMlOFKCIyU4UoIjJThSgiMlOFKCIyU4UoIjJThSgiMlOFKCIyU4UoIjJTh... | [
"0.62",
"0.61",
"0.2",
"0.8"
] | null | 2 |
math | grade-2 | purchases-do-you-have-enough-money-up-to-1-dollar | false | true |
A ruler costs 57 cents. Do you have enough money to buy it? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAB3CAYAAAB2WzTHAABfiklEQVR4nO3dd5gb1bn48e8UjbSSVtu0vXtd173ibgwGYwOGEAglEEoCJIEkhHBvyC8JJIRLciFASHIvkAAJNSQUA6aDjWO6cVn3uut1297Vy8z5/aFd4cVre91wrnM+z7MP1kganRkdDa+O3vMeRQghkCRJkiRJkiTppKCe6AZIkiRJkiRJknTsyABfkiRJkiRJkk4ixzzA74gJyt/qYuwSHx0xmf0jSZIkSZIkSV+mwwrwX6qP8cvN4YMG7ktb4tQGLao6Ta5eGTz... | [
"yes",
"no"
] | null | 1 |
math | grade-6 | understanding-percents-strip-models | true | false | Which model shows 75%? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAVAAAABLCAYAAAAmjt81AAACLUlEQVR4nO3XQU4TYRjH4XfawgJBWRiNB1CPwClcmXgJw5ZDsCVewsSN3oIbIO7F6IJQaALSfC4mTUxU0v4D1prn2UwnM5PvXf3ytmuttZOrqk+TqvG06roVAL8x6qq2hlVPN6oer1d1J5etHZ4teyyA1bJzv2p0POlvnqxXPb/X1xWAX42nVUcXVZ+vqj5OqgZn1/0D8QS42dawb2VV1fm0ajD96QEAN5u18nurGix3FIDVJaAAIQEFCAkoQEhAAUICChASUID... | 1 |
math | grade-3 | identify-parallelograms | false | true | Is this quadrilateral a parallelogram? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD4CAYAAADW4JEaAAAhjklEQVR4nO3daZAkd3nn8V9mZR3dVdV19K1hGDGAjQQIzCFOI5DFyhIWCCHBggwCnetgN+w3xO6G7QhHbGzsetlwBK82uLQCg722DiSEwEKyhDALCCO8DMdY1yBpNNM9fVZ1VXVdWZn7onoyq1vdo5npqsqs6u/nzfxzptT110x2xK+e/ufzGK7rugIAAADQFWbQGwAAAACGCQEbAAAA6CICNgAAANBFBGwAAACgiwjYAAAAQBcRsAEAAIAuImADAAAAXUTARl89/9k... | [
"no",
"yes"
] | null | 0 |
math | grade-2 | select-figures-with-a-given-area | true | false | Which shape has an area of 6 square units? The shapes are made of unit squares. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKQAAACkCAYAAAAZtYVBAAADVElEQVR4nO3dP26UVxTG4fON/xQOhC6IBWAvAQmBQpOsJFuARbAjoLAjohTswECPaW1sycajSzFjKanBc9/v8jzdaIpzLf10ujmeWmvt5Krq40XV2bLquhVszPZUdXer6uFe1f3dqunksrV3p72fBVWPfq3a/nCx+vBgt+rgl1WtsClny6rj86pPV1XvL6oWp9erL8RID3e3Vu1VVX1ZVi2W//kCerhp72urWvR9CvyfIIkiSKIIkiiCJIogiSJIogiSKIIkiiC... | 2 |
math | algebra-1 | perimeter-and-area-changes-in-scale | false | true | Look at this triangle: If the base is tripled, then which of the following statements about its area will be true? | "iVBORw0KGgoAAAANSUhEUgAAAB4AAAAOCAYAAAA45qw5AAABwklEQVR4nMWUoavqcBzFv7qgoIOBMosz2IbFW1wwCIpoWhPRNpdNghiEVa0Gwb/AqCA205qoWAQtDmF9YhJ123nlIdzn3rvccJ+nne+P8/2U8/35AIDeIP87oE/wcDikj48PCoVCJAgC9fv9nycDgKqqmM/nuF6v2O12iMVimM/n+EmR11CWZWia9tfQ6XSCLMvgOA6CIKDdbgMAIpEIWq0WRFEEx3FoNBqYTCbIZDIIh8MoFAqwLOsVfL/fsVgswLIsptOpJ/TxeCC... | [
"The new area will be 4 times the old area.",
"The new area will be 2 times the old area.",
"The new area will be\n1\n2\nof the old area.",
"The new area will be 3 times the old area."
] | null | 3 |
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