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 | identify-reflections-rotations-and-translations | false | true | Look at this shape: Which image shows a translation? | "iVBORw0KGgoAAAANSUhEUgAABbAAAAC3CAYAAADD5XikAAAeg0lEQVR4nO3dfXDddZ3o8U9DoA8JD6WUNIcHpVqV2icabcsqKLQKHXWVuwqoO4JX2TujLhG5O0jZHdh1xWWUXYqj4xVHBkfkZmegUlSKtExHGEiVU6S1iBdpkcKJaSgPpSGlTdv7RzmhTdI2D7/fOed3zus1w5ik4XM+noZD+s6P729MROwNAAAgEXv3+vYaAACSUlfuBQAAAAAAYDACNgAAAAAAFUnABgAAAACgIgnYAAAAAABUJAEbAAAAAICKJGADAAAAAFCRBGw... | [
"B",
"C",
"A"
] | null | 2 |
math | grade-1 | two-dimensional-and-three-dimensional-shapes | true | false | Which shape is three-dimensional? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAIe0lEQVR4nO3dTXPb1hWH8T/AdzWSm87Itjpyxlm03XWbj9Gu+qHzCZq6nTHjpLYnk/HUikQRfEEXNGkaEkkQBHCAc5/fyh7ZFqjRY+AK94BRmqbpu0T69510s5DmqQBUpBtJ5x3pT2fSs74UvZum6fcfrQ8LCM93F1L31d3qN1d96S+/W9UJoBo3C+mHW+ltIv3rToo/zlcfID6geuedVWuS9NtCihdbHwBQvXVrs1SKbQ8FCBsBAoYIEDBEgIAhAgQMESBgiAA... | 1 |
math | grade-2 | write-subtraction-sentences-to-describe-pictures-up-to-two-digits | false | true | Which subtraction sentence does the picture show? | "iVBORw0KGgoAAAANSUhEUgAAAfQAAAEsCAYAAAA1u0HIAABbpUlEQVR4nO29e5Ac1X3o/zndPe99r2C1K4EEQoiXABFssH2NY2xXfMHKzyS+xY0xIBv7puI4cUwS1y835dyfq3Jv5YbEIbeMHTtJGXDsG//AuTHgBGKetjGy+VlYDweQkGQE0qKVtK+ZnUc/zvn90bOP2XnszO6MNDt8P1UqzfR0nz4fHZ3+dp9XK2OMQRAEQRCEVY11pjMgCIIgCMLKkYAuCIIgCB2ABHRBEARB6ACcpqaWncDf8zD6xCHITmJyU5h8GhVNoBK9kOx... | [
"54 − 7 = 47",
"55 − 6 = 49",
"54 − 6 = 48",
"53 − 6 = 47"
] | null | 2 |
math | grade-3 | select-fractions-equivalent-to-whole-numbers-using-models | false | true | Count the equal parts. What fraction does this picture show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABkCAYAAAC8REciAAAqN0lEQVR4nO2d25Mc93XfP32d+85iL4AWS2BBck0SkkFCBI1QciBSlGPFqUqF5cpD3syHVOXRzEue5b/AzGMeXKYeU5W4GCflROVYpoSIoiFSJAjLgCSQwoLcXe4VOzs7t+7p7jyc7p7rXgAsLrM6n6qpuXX3dPd5+daZ7+97jCiKIhRFURRFURRFORTMR30CiqIoiqIoinKUUIGtKIqiKIqiKIeICmxFURRFURRFOURUYCuKoiiKoijKIaICW1EURVEURVEOEftRn8B... | [
"4/4",
"4/2",
"2/2",
"2/4"
] | null | 1 |
math | kindergarten | curved-parts | true | false | Which shape has a curved part? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAHJUlEQVR4nO2dzWtUVxjGn5nMhMSPTBU/JgSDCZjoohZbqkhp6ar/Q5ddtX9Bt1105b6LdlXoxrVIF64qlUKxIAilYOKiEMTUhUjiBIxObxfHodr6dc8978c59/mByCQ5M5d7frzvvc/ce0+nqqpqcxe4vQNsj4EnFQhpTK8D7J8CTuwBjk4Dnc1HVXV9y3qzSMmcmwN66zvhxfw0sLo3WEhIU7bHwK0RcHcXWNsBultPwi8oGUnJ/qngFAA8HAPd8TO/ICQlE6c... | 1 |
math | grade-8 | quadrants-and-axes | false | true | Which point is in Quadrant I? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AAA80UlEQVR4nO3dfXxU9aHv++9MhoQkJJNAgAQIUSsghoA8yHNSKdKiWMQHjnJs1er2br3Hl7aH6+v4creeXXfl2tNLq/iwW/fule4ju17ZWHcpWORBCKGIAYEAgRegBjAkJCHPmcxM5uH+ARMDJDCja2XNCp/369XXZtYkK9/9c2at7/zmN2sc4XA4LAAAAACGcFodAAAAAOhLKNgAAACAgSjYAAAAgIEo2MBVrqioSO+//37n7T//+c8aO3asQqGQdaEAALAxCjZwlRs... | [
"Y",
"V",
"X",
"W"
] | null | 0 |
math | grade-2 | cubes | true | false | Which shape is a cube? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAZTUlEQVR4nO2db1CTd57APwqEAIHES0CoSUUPok51iH/WDm7daumLtatT7czSnX0jbl/0ejN13e7OzWx3OmtnW/dmZ9r12s517sWu8OpaO1Pt6uq+KEqrwpxViSc9JHCCJhQEsiQQQ8Kf4148eR4TCJqE/CW/z4yjJCHPT/jk+3x/39+/ZbOzs7ODk9DjhfEZmJ5FIEg7cpdBcQ5UF8JKFSwb9M/OXh1LdbMEgsh5ugRyu73SFxUqWFckWS0QpBvjM9D1AAYmwea... | 1 |
math | kindergarten | subtraction-sentences-up-to-10-which-model-matches | true | false |
Which picture shows 5 − 2 = 3? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARIAAABKCAYAAAB3ndsNAAASfElEQVR4nO2de4xcV33HP+fce+exsw97d/2OYxs/E2yap+0AbZo0lCQ0qJCoFALYFa2qVlWhBVVtJUCVKipVVUFqeQioGgMpDRgEidxSpIZHTOw4xTZxHvgV28TZtb0P7877Pk//uDs7M+uZ2dmdO2tnfD7SaOfeuffs+V7d3++8fuccoZRSFxw4lYeMD55Co9FoGmIK6DFgYxcsi4G4YCt1KH21s6XRaN6o7OgF82Q+PFgRg82p0MtoNBpNIzI+HM/BsAMn8iD... | 0 |
math | grade-7 | similar-and-congruent-figures | false | true | Are these shapes congruent? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEcCAYAAAD9QsM6AABFAElEQVR4nO3deXTNd/7H8efNnpBISCL2XVC0Ulvb0VbpQkNto4pWCUVHTS2/aVFFEczU1oVYopZSVVsxaAdd0lZTQSVqi7W2kIaILeu9vz8iQaklufd+b5LX45w5Z+Ym9/N93Zw5vPL1/n4+JovFYkFERERERKzCyegAIiIiIiKFiQq2iIiIiIgVqWCLiIiIiFiRCraIiBWsXbuWJ598El9fX8qUKUP37t05c+aM0bFERMQAKtgiIvk0adIkhg0bxsiRIzl9+jS7du3... | [
"no",
"yes"
] | null | 1 |
science | grade-5 | animal-adaptations-skins-and-body-coverings | true | true | Hedgehogs have sharp spines covering much of their skin. These spines are called quills. The skin of the hedgehog is adapted to hurt an attacking predator. Which animal's skin is better adapted to hurt an attacking predator? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEKCAYAAABnkCFsAAEAAElEQVR4nOydd5wURfr/31U9s7N5l7Asu2RYlhwlI0lEBRFFUUQ99TCj55nTBc8vd+iJWdHzDGcOhwkTiokgqCBJcs6ZJSy7y+7MdNXvj+rumVnS6q3o3a8/vkZ2prurq6urZ57nqc/zeYTWWkejUZRS+PDhw4cPHz58+PDh478TUkoCgQAiEolo37j34cOHDx8+fPjw4eO/H1JKpG/c+/Dhw4cPHz58+PDxvwGlFPKX7oQPHz58+PDhw4cPHz6qD76B78OHDx8+fPj... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA88AAAEKCAYAAAAsMWftAAEAAElEQVR4nOy9ebxlRXX2/11Vtc+5PTcz3YyBZp4RxBFBHAJiK9qKIBHFGX3jRAR9YwwvBvMGlQgSgjgrDj8NStQQwVlBRQGJojKICjKIjA3d3Ht2Va3fH6tqn3N7oC/aivqexed+uPcMe9euPXQ963nWs0RVNcZIzplxjGMc4xjHOMYxjnGMYxx/nuGcI4SAiDzcQxnHOP4iw42B8zjGMY5xjGMc4xjHOMbx5x85Z2KMD/cwxjGOv9hwY+A8jnGMYxzjGMc4xjG... | 0 |
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? | "iVBORw0KGgoAAAANSUhEUgAAAmwAAAGZCAYAAAA0Im0SAACD10lEQVR4nO3de1xT9/0/8FcIlxASQEGQAN5JnFaxJvXS2oq6dm0F263rVnBt3Xct9LatFbp1vRnXbr0R29+3V7DfXmwLvbh1M/Sy3ox21VqDgq2XoNYbBi+AQIBASPj8/og55kC458bJ+/mohZxzcs7nRHj7Pp+riDHGEMIaGupx9OgxdHZ2QCQSBbo4hAAAIiIikJSUjAkTJgS6KETAKP6RYETxz7PwQBcgkLq7u1FXVwfGuhEZGRno4hDC09BQj5SUFERERAS6KES... | [
"neither; the samples have the same temperature",
"sample B",
"sample A"
] | null | 1 |
math | pre-k | count-corners | true | false | Which shape has 4 corners? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAGG0lEQVR4nO3dwW8UZRzG8Wfb0iiCxAMaPXlAMRISIwc88ReoN70QEjwhohwMnjSGgwYCRBJQabgY0nhQDk3sreFYkqZZCInUQFmTDa2wpdiV7rJdxt0dD9sh1QB2O7O/d97Z7+cGpPQNfDswT9udXBiGYSmQCjWp0pQaoYDYBnLSxn7plfXSC4NSrvQgDCcXXR8LWbbzWWngRq39gxcHpa3PtCsE4qo0pev3pduBNF2T+hYb7V8gMiRpY3+7KUmqNqW+5opfAJI... | 1 |
science | grade-6 | compare-concentrations-of-solutions | false | true | The diagram below is a model of two solutions. Each green ball represents one particle of solute. Which solution has a higher concentration of green particles? | "iVBORw0KGgoAAAANSUhEUgAAAbAAAAEVCAYAAACBn7B3AABxqklEQVR4nO29d3wc1bn//zmzu+rVluQCtiVX3AuYYkyxCdWmc4HAj8QQSrgJN4RLCDeQAlyTcAk9AUIJhO8lJMEEuIBDNyU4gCmOcQkYLPeOZfXVljm/P86cNjsrS7YkS7vPm5dZzezs7Mzs+cxTznPOMM45B0EQBEH0MZz9fQAEQRAEsTeQASMIgiD6JGTACIIgiD4JGTCCIAiiT0IGjCAIguiTkAEjCIIg+iRkwAiCIIg+CRkwgiAIok9CBowgCILok5ABIwiCIPo... | [
"neither; their concentrations are the same",
"Solution A",
"Solution B"
] | null | 0 |
math | precalculus | determine-continuity-on-an-interval-using-graphs | false | true | Is the function f(x) continuous on the open interval ( – 3,4)? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAAB6aElEQVR4nO39fXxU9Z03/r/mPpOZSWZyHwIJIIKCBEURQVAUqnhbwVq1tdZetlu7bW27V3t1r1579frtruu3N9t2a63tdtf1Znvj6npXwYAotwYlECGQgIAIuSU3k7mfOXNu5pzfHzEpEZAEzofJJK/n49GHzWTOK2/OmfOZ95z5nHMshmEYICIiIiIiU1izXQARERER0XjCBpuIiIiIyERssImIiIiITMQGm4iG2bhxI6ZOnYpbbrkFAHDbbbfh5ZdfPuVzVVXFVVd... | [
"no",
"yes"
] | null | 1 |
math | grade-8 | identify-trends-with-scatter-plots | false | true | Does this scatter plot show a positive trend, a negative trend, or no trend? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFhCAYAAABK/t0lAAAe8klEQVR4nO3dfXCW5Z0v8F8ABVwgGSwgIASPslAUCA26gLOhVetI3RStuvaMWqyFtfZstZVutXtmkVJx6U6VrfjSqutLZXfdM+jUsqN0qbrRlbeaSpRYrK4QECG0qwkgbwLP+cOaSnkRea48d57k85lhhvu+k/y+gT+eb65cz32X5HK5XAAAAEl0yjoAAAC0Jwo2AAAkpGADAEBCCjYAACSkYAMAQEIKNgAAJKRgAwBAQgUr2Dt37oydO3cWahwAAGSiYAV75cqVsXL... | [
"no trend",
"positive trend",
"negative trend"
] | null | 0 |
math | grade-4 | interpret-stem-and-leaf-plots | false | true | Kylie counted the number of ducks at each pond in the city. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAClCAYAAABm8IozAAAnWElEQVR4nO3daVRUV9Y38H8VcwFSIgrKqCI4REVD04mWraImIRChFYQ8nY4TKkZRExxwSADbBKS1BYE4o7E10YY4dNCH1hBRg+IYnKOA2iqDMohii2E67wdf6kk1g5jUBTH/31q1Vnnu2XfvW37ZnHXuvTIhhAAREREREWmFvLULICIiIiJ6mbDBJiIiIiLSIjbYRERERERaJI+Pj4dMJlN/5HI5OnToAHd3d2zatAk1NTWSJL5586Y6Z1lZmSQ5fqtee+01yGQyrF2... | [
"1",
"2",
"3",
"0"
] | null | 1 |
math | kindergarten | count-sides-and-corners | true | false | Which shape has 3 corners? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAFS0lEQVR4nO3dTWtUVwDG8WdmYqA2thtpkYJ9gb58A/d+hW5dlUIXhUK/gogLFxaKXbSULkpXhS51q0txI90ImhBr0MaUAc3rTMZ77+liDPiSYO5k5rnnnPv/7SYRcuP8c885M+cwnRBCeDySlnakzVIqgoAjm+tIJ3rSp8el9+elzuPdEG5tNH1ZyNmZd6S5xZ3xg1Pz0udvjysEjmqzlO5uS6sj6d6O1N0oxt8gMkzTid64KUnaKqVu+cI3gGnaa+pZkLrNXgr... | 0 |
math | pre-k | one-more-with-pictures-up-to-5 | true | true | Count the snails in this group. Which group has one more than the group you counted? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABmCAYAAADxjOYpAAAfl0lEQVR4nO3deXidZZ3/8fdz9ux7s7RJ27RNmzTpvtdCWVpksyADooiCgOJPBHX8jTCi4jjqzKAw4gzKwDg4OD9FRWVVQGgd2nRv2iZtuiRNszRL0+zbOTnnPPfvj9MtTZqCpA1tP6/r6nX1POdZ7uf89cl9fe/vbRljDCIiIiIiMiIcoz0AEREREZELiQK2iIiIiMgIUsAWERERERlBCtgiIiIiIiNIAVtEREREZAQpYIuIiIiIjCAFbBERERGREaSALSIiIiIyghS... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA7sAAAB+CAYAAADlVwZsAABZkElEQVR4nO3dd3Qc5b3/8fdsX0mr3otlq9lq7t1gbIMh9BZqQocbuOEakpCEEJKQQnrghvxSKOGSkEBooZjebMDdlouqbTWr97a72qLdnfn9sZJsWZIxYFu28n2dk6N46qMZDWc+8zQF0BBCCCGEEEIcE5qm0ToAVS5wBMAvb9tCnBAGBWx6yA6BBBMoSNgVQgghhBDimGn1amyzT3QphPjPtigcDBNdCCGEEEIIISaTSlfwZ5IJpocGa5qEEMefIwD7+qFlAPa... | 0 |
math | algebra-2 | factor-quadratics-using-algebra-tiles | true | false | Which area model represents the factorization $2 x^{2}+7 x+3=(x+3)(2 x+1) ?$ | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMgAAAE4CAYAAAAevbwzAAAPZklEQVR4nO3df2zV9b3H8dc5p6VAS9tAD1ho+dEWKgywtDJjcROIlUwxJoqbZtPN5O6aBZI5s5mY+c+8iUSSaUwWrrrosmXCrjc6IxeuUES56gjT9BAW2inQ0QvlFHqKPaWnpe0533P/KPSKP96Vec75lHOej3+g34a8PxzO83y+py3fry+ZTCa7hqVjA9L5hBRPCshZeT5pWkBaOFWaNUnydQ0lk3/tc70sYOK5oVjKOzow+kH5JKm2cLQeIFedT0gfxaTwsPT... | 3 |
math | kindergarten | select-two-dimensional-shapes | true | false | Which shape is a triangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACQCAYAAADwZHJxAAACbUlEQVR4nO3UMW5dVRhG0f89P1tK4kAHYgDAEJIBZDqZDEyHHpQZJKHHae3YIo6fLsVVJDoXsfZFZq3qHJ3mK7bOblmW5eJ25s+bmavjzN0y8NUOu5nnJzM/Pp35/mxmd/FpWd5cbj2Lx+zFNzOH9zfr5YezmZ+frRXC17o6zry9nvnrdubdzcz+8m59EBkP6fnJ2tTMzMfjzP74rwd4SF+a+rzM7Ledwv+F0EgIjYTQSAiNhNBICI3EYesB93n52+u5vvt76xn... | 1 |
math | grade-2 | which-table-is-correct | true | true | Johnny went shopping for party supplies and bought the following items:He wondered if there were enough supplies, so he made a table of the supplies he bought. Which is his table? | "iVBORw0KGgoAAAANSUhEUgAAAakAAAEcCAYAAAB9K0udAADUVUlEQVR4nOz9eZhcV33nj7/OuVvtVV29qBd1a7e12PJuybuDMeAYm+CEJWDAzI8vS/gGkiHDEJgnQAyBCWMCnmSACd8AIYEkNjvewLbwBl4ibMm2JGuxelOv1d3Vtd71nN8ft9WyAINJtNmq1/PwyF1163LrVNV9n/M+n0V87GMf07Ro0aJFixYnICbARz/60eN9HS1atGjRosUvIY/3BbRo0aJFi5jRHTsY3bHjBR1bH5+gPj5xlK/o+NMSqRYtWrQ4Qdh53wMcGBr... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAyUAAAEcCAYAAADZfhvTAAEAAElEQVR4nOz9eXxdV33v/7/W2tOZz9HRYA2WPCeOnThz7MwpYWwYSlqG0kDD/fFluP22tF96ubS9jxIaKNxyw4V8Swm3/ZaphbYJM5kgickEGRoSO4nteIgtWdZ4JB3pTHtc6/fHURwMBALElonX8/HIw7a0z8k+S9LRfu/1WZ8lrrnmGo1hGIZhHIeuueaapT4FwzAM4xiwAT74wQ8u9XkYhmEYxk8xocQwDOPEIJf6BAzDMIy20R07GN2x43kd2xifoDE+cZT... | 1 |
math | grade-1 | subtraction-sentences-using-number-lines-up-to-20 | false | true | Which subtraction sentence does this model show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABhCAYAAADsidaRAAAWgklEQVR4nO3de1BU590H8O9ykyKwoIJKSlghBYNB8BIBbYqX0dyj1kg1k4nYGhPTvjaacYyJnWhCq6m56IROJjYzNTbFUbFgTOvo+xoBJ1xF0CqjadQFyYJhQZDlIqzs+8fxLCyo7MKBc+H7mWF29+zO+vvp4vnuc57zHJ3NZrOBiGRTaQGW/R+Q/yNQvBiYHiR3Rf3DPoiIiARuchdANJwdNgJxGUKoUzP2QURE1IUBm0gmN9uBJf8LrJ8M7EiQu5r+Yx9ERESOGLC... | [
"6–4=2",
"8–5=3",
"6–3=3",
"7–3=4"
] | null | 2 |
science | grade-3 | compare-properties-of-materials | true | false | Which is stickier? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKUAAADCCAYAAAAo2gI4AAA26UlEQVR4nO29aZBk13Xn97v3rbln1l7V1SsaaKwkFgKEJEDcQFocriGOZWmGUlgOTcxYQcsxEVKE7S9yhPTVksceyRNSeGSPaJOUNJZIDoeUxA0kKIogCDTQjQYbvXdVdVV1bblnvu1ef3iZ1VnZWWtXdRe68x/x4r18776szJe/Oueeczfx45LWJ1KQMeirr9uqSgRnazDrQ8GE5/LxedkHsq87pYwBJ1LxcTW6cV72gezrTqrNX6BvnJN35qP01df66kPZ175... | 0 |
math | pre-k | more | true | false | Which group has more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAdoAAABeCAYAAACEstXVAAAGOUlEQVR4nO3dzW9U5xnG4Wfwx1h2wCQlY7rIx4bSRap0gUQWXVSiUqKiqogVzaYhm/LnRa0iZdFKrdRuskpEFzbuouqmjlspGCfOGDM6XRw5jMlgeWbOc85bcl0bjMDD+bG5/Y49Z3pVVVU7jyP+cRCxP4p4UgUAMKPFXsT5hYgrqxEbyxG9ncOq+vRR15cFAC+e6xciFrcP6t/8cDni6lq9wgDAbPZHEVtfR/z7ccSDg4hzj57Uf2BkAWB+5xfqTY2I+GoUcW4... | 0 |
math | grade-6 | absolute-value-and-integers-word-problems | false | true | Sandra uses the Comic Review website to read comic book reviews. Site members can rate comic books by giving them a positive or negative score. The table shows the average scores for a few comic books. Which comic book was rated the worst by Comic Review's members? | "iVBORw0KGgoAAAANSUhEUgAAAYoAAAB/CAYAAADxVoUOAABFBklEQVR4nO2dd1RURxfAf4CAYC9YsKFgA1SiEGssgCJY0VgQNRqjhKjB3qOJWFATo7H33kuUWFA0MdZFsURiF6RLU3pVeN8fZN/HwrKC0ZAyv3M4nDdvyp15s/fO3DtvV4tV7SUEAoHgLfmp4wJ6XZxT0mII3hPSuMtol7QQAoFAIPh7IwyFQCAQCDQiDIVAIBAINCIMhUAgEAg0IgyFQCAQCDQiDIVAIBAINCIMhUAgEAg0IgyFQCAQCDQiDIXgH4eOljZlSpVGq6Q... | [
"Mothwoman vs. The Eternal Flame",
"Wasp Boy's Dilemma",
"The Iron Katana Strikes Again"
] | null | 1 |
math | grade-4 | compare-fractions-in-recipes | false | true | Does this recipe call for more flour or butter? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAHMCAYAAADvfN8VAABzvklEQVR4nO3df3zO9f7H8cd17bdtzDZDJOVXRDjbQeZXolJIRQnncCgOh1CcrxwyPypMilQWqXSIdDQh/ZAjdvJr2rBEfjPGjP20n9euz/eP2dVmP+m6bOV5v912O12fz/t6v1+fz3U51+t6X6/P+2MyDMPgKsMwsFqtWCwW25/ZbMbFxQVnZ2ecnJwwmUyIiPwRGIZBbm4uFouFnJwcrFYrzs7Otj+z2az/zxMRketmyk+wrVYrubm55OTkkJOTg4uLCx4eHvpwEZF... | [
"flour",
"butter"
] | null | 1 |
math | kindergarten | fewer-and-more-up-to-20 | true | false |
Which group has fewer? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAcgAAABOCAYAAACkP4abAAARH0lEQVR4nO3d2Y9cWX3A8e895261Vy/uzUt7vMAMIZ5RBjAwwMADKA8ZCSlCESFSnqL8bUmkPIREJAxRiAhoYMYTmGAztsd2b+59q/1u5548lN1jRM8CTFVft39fybLK7e46n/vyq7p97ynHWms3E3ivDx0DmUWSJEmSnrlcB2oarpZh1gdnM7b2F+2TXpYkSZIkFafrdXDv9ocP5n34dGU4PSVJkiTpWatj4HYPNhK40wfVzoZfkOEoSZIkPcvV9HAWAnQNKPP... | 0 |
math | algebra-1 | identify-functions-vertical-line-test | false | true | Look at this graph: Is this relation a function? | "iVBORw0KGgoAAAANSUhEUgAAAQ4AAAETCAYAAADH+ejgAAAZ70lEQVR4nO3da2ybZ6EH8L+TOk7sNg0tTnJYtySoU0KaniZqc4OpaoqAhSWMgrZMgIQ6rdIqrV8AMcSHgiirVgk+rWVDoHQMbVrKRZWSqZOQcDUN5UJLPZIU94BOXDaJ1OG0Tlrbuft8MO/r5/UlyevLe/3/pGm24755Ejt/P/fHEY/H4yAiUqFE7wIQkfkwOIhINQYHEanG4CAi1RgclNHi4iIWFxf1LgYZFIODMvL7/fD7/XoXgwyKwUEZjY6OYmxsLOvXz58/j97... | [
"yes",
"no"
] | null | 0 |
math | kindergarten | hexagons | true | false | Which shape is a hexagon? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAG3klEQVR4nO2dy05bVxSGl7mpTZNW6qBVK3XYVOoLZNIH6TNGIJDIAAagZECAGJwooKI0IBEVCcrAx5djMPgcnw5MUsIlvu299l5r/Z8UKcYY78AHMfv8a/+loiiKk0ui/TOiZk6UFQTA2EyViB5NEv36gOjHGaLSyUVRvGqEXhbQzJNviaben/Vu/DRD9Ns3PQsBGJdmTvSuRXR8SfT3GdFEI+vdAcmASx5N9pwiIkpzoon82h0AuOSjU52CaCLsUoAVIBpgAaI... | 1 |
math | algebra-2 | match-exponential-functions-and-graphs | true | false | Which graph matches this equation?
\[ y=4(4)^{x}+5 \] | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAVUAAAE1CAYAAABX+HN0AAAbPUlEQVR4nO3de2xU553G8WfGNwye2E3xJU2DcWiDC4EY3AS7jXCcigLZIAWi5sLSFAhU0DiqtMlqIVKWdLe5VSlaVTT3GxIKzSZBUUxKIC1mS1WbLA6Tqwws4NIQ22MuA8bgwZ45+4fjsQcbMjbvzDnH/n6kKDNnzjnvbzieZ87tfcdjWZbVfE76vzNSW1jqsgQAiFOqR/KlSN8dLeWnS57mkGV9cMrusgDA/WZcJqXuP9P95Ip0aeKY7sQFAMSnLSztbZeazkn... | 1 |
math | kindergarten | times-of-everyday-events | true | false |
Brad recently got out of school. What time is it?
Choose the more likely time. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHQAAABzCAYAAABJnyafAAANZUlEQVR4nO2de3RUxR3Hv/fu+5FsAnlCyAsC4VFIQQSxKAaLVYO2QtWicFRs1YpVIAhWVEBaWwseT49U/wBbEemhFRQR7fEUQUAU5KlASAATCJiEPHaT7G72ead/LNnd2+zrPpZsNvM5J+fMzJ3fbyb5ZubOnTt3hiGEkEYXcM4OdHoBDwGlD6FkgBQFUKIHstUA0+gk5FBHb1eLIgeTUgHlWbsvkqsGRhh8alP6Dp1eoNoGNLiAGjvAdnh8F6iYfZMUhU87ALB... | 0 |
math | grade-2 | match-digital-clocks-and-times | true | false | Which clock shows nine fifty? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMIAAADICAYAAAC6ej5XAAAO0klEQVR4nO3dbWxcVX7H8e/MOHZi3ySkQDwgCFBPumjZ4klFS1exqapq125Vum1ChEjVGKkLFXZekER1tBJJhbMvsKXCmzgtYVvh8CTQJlWXbetBDXTBs2V5aO02LJtlhpYsC+MkDUl8x7Edz0xfGE/GY0LmzMO947m/z5tMFJ/7P5Hv755zz5w748tkMpnEDMQmYSIFsxlEal6dD1YGYH0jNNeDLzGdybx13u1uibjnzlVQ98Hk3F+uq4evNM2lRKTWTaTgeBI... | 0 |
math | algebra-1 | surface-area-and-volume-changes-in-scale | false | true | Look at this cone: If the radius is doubled, then which of the following statements about its volume will be true? | "iVBORw0KGgoAAAANSUhEUgAAAKoAAACACAYAAACbQfLSAAA+HElEQVR4nO2dd5wV1d3/3+fM3Lu7LOwuoAgqsBaKgoDYFQWMDWwh9tgwlpjHnqaPKaIpT0yIEksejUbQR40ajS1KYsVgrwiCoAgrTbAgC8uWe+/M+f1xypy5u4uosAv+9struTNnzjkzd+Yzn28533OuUEopOqRDNnGR7X0BHdIh6yMdQO2QzULaBailpaU89dRT7XHqDtlMZYMAdcGCBYwdO5aKigr69+/PLbfcss76jY2NHHTQQRvi1B3y/4l8baA2NTUxduxY9t5... | [
"The ratio of the new volume to the old volume will be 1:4.",
"The ratio of the new volume to the old volume will be 4:1.",
"The ratio of the new volume to the old volume will be 8:1.",
"The ratio of the new volume to the old volume will be 2:1."
] | null | 1 |
math | grade-3 | parallel-sides-in-quadrilaterals | false | true | How many pairs of opposite sides are parallel? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADICAYAAADSmpa3AAAbY0lEQVR4nO3d+3fU9b3v8dd3MplcnNwvk0SKFzbU1qKyzF6FVdQu6IIu6GkFixsUuSO3gnu12rPOOn9BW9ujokQ2EJCLUPECXeI6sDesLeIKexk3WrWww0YqB5PM5J4MM8lkMnN+CJlvRoEEMsl3Ls/HT/l8zIS3zERf85nP5/0xwuFwWAAAAABiwmZ1AQAAAEAyIWADAAAAMUTABgAAAGKIgA0AAADEEAEbAAAAiCECNgAAABBDBGwAAAAghgjYCezwwTYd2NtqdRk... | [
"2 pairs",
"1 pair",
"no pairs"
] | null | 2 |
math | grade-1 | purchases-do-you-have-enough-money | false | true |
A cereal bar costs 73 cents. Do you have enough money to buy it?
| "iVBORw0KGgoAAAANSUhEUgAAAvgAAADECAYAAADqBVUcAAC6qElEQVR4nOzdd5xU1fn48c+90+v23ndZWGAp0ouAIqBiwxpQY038WhJj1CSmfNUUY77JLz3RGI1JjBITe0WlKIhK7x2W7b3vzO7Ue8/vj9kZWXep0sTzfr32pdy5c8uZmTvPPfOc5yhCCIEkSZIkSZIkSWcE9VQfgCRJkiRJkiRJx48M8CVJkiRJkiTpDHLcA/yOkKDg3S7OWuahIySzfyRJkiRJkiTpZDqqAP/V+hA/3uU/ZOD+QUuYih6dTZ0aN6/v+dwHKEmSJEm... | [
"yes",
"no"
] | null | 1 |
science | grade-4 | identify-minerals-using-properties | true | false | Select the one substance that is not a mineral. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANcAAAEYCAYAAADPtGNgAAEAAElEQVR4nOz9ebBk2X3fB37uufuSe758e+1VvaIbIDaCICUSJCVSS1iyLY21hWVprHHMhByS7fHEhGNCM5KtsCwv8sia0DgkjSTKokNkgBQXACRIYiO2RncD3eju6tqr3v5e7pl3X86ZP+6r7upGNwiKaLIJ1bfi1c2XmS9fvrzne3/n/M739/1pX5sr9YgPDZ2HeIiH+DfAsoJrERzm0DHgB9v1/eIhsR7iIX5naOjwiF/fDqvX7xcPifUQD/E7x30eFer1+8T... | 2 |
math | pre-k | what-comes-next | true | true | What shape comes next? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAD1CAYAAAAlI4EUAAAdIUlEQVR4nO3dfYxc9X3v8c+ZMzM7Ozt4Fzs2XpsoUAfRJoWqNyBuS1ISKUWN1ChS/ugDSdRK1UVJr3pv/wiqKiWquYl0pZRI0e3VTeKSVIEYt6E3NIHeUIwKDhQHsCGE8GA7dgzY67XXu17vPD+cc+4f4931w+zunNnz+Jv3S4oi2Jlzfv7y2aOPz5w5x/I8zxMAAAAAI2TiXgAAAACA4FDwAQAAAINQ8AEAAACDUPABAAAAg1DwAQAAAINQ8AEAAACDUPABAAAAg1D... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAz4AAAD1CAYAAACRDCAyAAAjLElEQVR4nO3dfYwcd53n8U/10/T0dGYmNn6YcSLiTXzhKVlxSS63C6wTiUWJRITEH7uQgPak1Vphb7nbP8itTgLhLJxOCkFCBzqCCax4sM2SPViw95KLo01MsjGO4xhwHMc2Tgz2jMeeR08/TXdXdd0f7R4/9cx0dddDV/X7JfFHPN1VP3/5pNKfqeoqw7ZtWwAAAAAiwTCMoJfQlWJBLwAAAAAAvEbxAQAAABB5FB8AAAAAkUfxAQAAABB5FB8AAAAAkUfxAQA... | 1 |
science | grade-5 | identify-rocks-and-minerals | false | true | Aquamarine has the following properties:
fixed crystal structure
pure substance
solid
not made by living things
naturally occurring Is aquamarine a mineral? | "iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAABzQElEQVR4nOz9WbNl6Xnfif3eca21x3NODpU1gSBIgiABkBSopkSKbCkY3ZIVHRosqdt2hN1W2OGLbnf4G/jen8A3tr+Ab62wW2rZrcHdVoukSJGCSIAYqlCVWTmdaU9rrXf0xbP2zqwCkIAoOagInweRkYk6+5y9z97v8z7T//9/VK21cmd3dmc/0PSf9gu4szv799nuHOTO7uwNducgd3Znb7A7B7mzO3uD3TnInd3ZG+zOQe7szt5gdw5yZ3f2BrtzkDu7szfYnYP... | [
"no",
"yes"
] | null | 1 |
math | grade-4 | identify-faces-of-three-dimensional-figures | true | false | Which shape has a triangle as a face? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAf10lEQVR4nO2de5xcZZ2nn/c9p6q7q+/pTneuJJCkAxJIUEJIFIQw4g54w0HHGUcYHF35fGa9ja7LOM5FXVddVx1ndnZF/YiIo7LDgKCAF8CAA4EgF024pHMjJOn7pbq6q7qr6pz33T9OdaerU5V00lV1TlW9zz9Qp9N9ftXd337P+b3PeV+htdZ9KdifgHEXHI3BYCgStoBGC9ZFoDMMoi+p9a6Y32UZDNXHliaw9yW8F0vDsL7eS6fBYCgO4y7sjUNvCroTIGO... | 1 |
technology | grade | cables | false | true | What kind of computer related plug or port do you see here? | "iVBORw0KGgoAAAANSUhEUgAAAV4AAAEsCAYAAACLwdvQAAEAAElEQVR4nOz9WbBlx3nfif4y17THM091qgo1oQAUQBAASYikJFhqk6I1mOKVbTlCbst2+6XjhqPjhiO63zr6oR/uY0d3dET3k7r92uErz5YUkihKnEwRADFUAYWqAmqez7zPHteQeR9yZe7c6+xTBRKkOCERhXPOHtaQK/OfX/6///d94vf+we/oOI4BGI1GaK2JoggpJUVRIIRACAGAEAKtNVprlFJorRFCEAQBUsqJ9+3n7XcPa40onjieUmrifXsOKaU7h/+ePZc... | [
"Serial port",
"MagSafe connector",
"HDMI port",
"Ethernet (RJ-45/8P8C) port"
] | null | 1 |
math | grade-3 | open-and-closed-shapes | false | true | Is this shape open or closed? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABkCAYAAAC8REciAAAKC0lEQVR4nO3dP2yUd5oH8G+iq7AlXGGosDGUxqYLUhCsEqRwTZyCnLSJFDsnJRVZk2s2RKsQRZcoxRGz3BVJESbSJkWIdEMTrwQnOQLJ2zFAifFOKnvc7EQ73tZXDOPNHwO253XGHj6fCpl33nncff3o+T2/p1ZWVlYCAAAU4ulOFwAAAN1EwAYAgAIJ2AAAUCABGwAACiRgAwBAgQRsAAAokIANAAAFErABAKBAAjYAABRIwAYAgAIJ2AAAUCABGwAACiRgAwBAgQR... | [
"closed",
"open"
] | null | 0 |
science | grade-4 | compare-temperatures-on-thermometers | true | false | Select the thermometer that shows the lowest temperature. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJkAAAFICAYAAABDSVyEAAA8bElEQVR4nO2deZgVxbn/v31mhn3OmVwXdIYZvI9JGJgBfJ7IMjD6u1HUq+iNKBAhKkaNsgm4IIuIAm7ggrjgEpebRAYUCZooajT43J/IFp8nN8wCJN7cMMyg3p8XZ2EJy0z//jin+1RXV1VX9anuPmPO+zw8xTnT9e233q769Ft16vQxTNM0vzwOfH4EaO8ATprIWc4ysnwDKMwDvtcL6NsNML48Zpo726J2K2ffVhsRB/L/ciT54sxuwIDeyR6Ys5xlYu0dwN7... | 1 |
math | grade-7 | identify-trends-with-scatter-plots | false | true | Does this scatter plot show a positive trend, a negative trend, or no trend? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFhCAYAAABK/t0lAAAfIElEQVR4nO3dfXCV5Z038F8AU1AiTJDKAdyNYxCKOoaE2iTOoLa7Dq7GtxZ1132qFVnr1lYru1t3n6nGVm101vqC2FbRttZdsWWdWnyULrNadCXgmsCOgFTYCgoELUEgETEFzvNHNV2WhA05d85L8vnMOMO5r+T8vugf5+uVK/ddlE6n0wEAACRiUK4DAABAf6JgAwBAghRsAABIkIINAAAJUrABACBBCjYAACRIwQYAgARlrWDv2bMn9uzZk61xAACQE1kr2CtXroy... | [
"negative trend",
"no trend",
"positive trend"
] | null | 1 |
math | pre-k | wide-and-narrow | true | false | Which barn is wider? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAANAAAACoCAYAAACR1WDYAAA5MElEQVR4nO29eZBd133f+TnnLm/tvRuNxkJiI7iIO0XSlCWLkmJHkSVbyVSqZMeZGpXjmmRmpLLiSmomnmQ842ScsSUr8cSynZqpOIsTe1zxrqQkWZtlbaRIijsBEATQaKC70cvb37vrOfPHffvS/XpFA7yfKuD2u+/23fp+7+/8fuf3O0dorfWSB29WoRRCoImJiRmAKWDEgLvSMGuDWHK1fqZ4s08rJubW48lRMC9Uow9zNtydidQVExPTn1II5yqw6MH5Ksh... | 1 |
math | precalculus | find-limits-at-vertical-asymptotes-using-graphs | false | true | The graph shows f(x). The dashed lines are vertical asymptotes. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH3CAYAAACBwSh7AACRS0lEQVR4nOzdeXyU5bk//s/s2TMhgSQEkhD2IEGCrLIWqlSsFSy1i7W0nm7f2u2c9tR6Wk8X6umptj22tj+Pp1a0dpOKS8GIqCAIIhAgQNhCgKxkn5nMvj6/PyYzSSAhk8xzzzMTPu/Xy5fJ5JnruZjMPHPNneu+b5UkSRKIiIiIiEgWaqUTICIiIiIaTVhgExERERHJiAU2EREREZGMWGAT3UDeeecdFBcXY926dUqnQkRENGqpOMmR6MaxZs0afPazn8XnPvc5pVM... | [
"$\\lim _{x \\rightarrow-5^{+}} f(x)=-\\infty$",
"$\\lim _{x \\rightarrow-5^{+}} f(x)=\\infty$"
] | null | 1 |
math | grade-4 | nets-of-three-dimensional-figures | true | true | Which net will make this figure? | "iVBORw0KGgoAAAANSUhEUgAAAGQAAABkCAYAAABw4pVUAAAQXUlEQVR4nO2de1iU1dqH7+GgchJN0UAQPAACGm7R0LQ8YJ4SFZJM1IRgg4fvS/B8fVaOYRkeRshdGYqgaVptFNJKUAR3G3embAYEGmOnYyJ+gAIjCCKHd/9BkpgcZhhhwLmviz9g3rXW886PZx2eZ633FQmCIKBFY9BpbwO0NEQriIahFUTD0AqiYWgF0TC0gmgYWkE0DK0gauDQoUNMnjyZkydPtr4yQYvKZGZmCuPGjRMAARAsLS1bXadWEBUoKioSli1bVi+EaRd... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUkAAAC+CAYAAAC4av29AAAgGUlEQVR4nO3deVxUdfv/8dewiBuiKHi7hRtIKGJqN5kVeGuKJSqmWS6pQeBSuWu5JIZSebt7i2KofDWTcsMtlyzhvl0iNUGEWFIwUVMMQRBknd8fBD9JHBBmOANcz8fDBz7gcM414rw5M+dzXUcFqBF6Q61W80cO/JYJ6fmQJz8dIaqUkQpMDcG6PjSvAyokJPXKH9lqfr6vdBVCCADHRmCkdBGipPjMwo8t6kCnBoW/0YQQVSc9H2IfwK0ciMsEA6ULEiXdzyv... | 0 |
math | grade-1 | identify-halves-thirds-and-fourths | true | false |
Which figure shows fourths? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAIIAAAB8CAYAAAClm2iUAAAxrUlEQVR4nO29aZClWXrf9Tvn3Ze75s2ttq7q6qpep7tnkzxYHjBSIGMhQliSQ2BwjHGEMcIfCCIIf/EHgg8EIAwYiLAxjvDIOCRbsi1LGGKMw2Bbu0aaaXX39F7dtXRl5XLzru++nMOHcyurs7u6NWOUVdWj/FfcuJmV9773ve/5v8959kdorfVuBe9ksGyh0ZziDwBsAR0LroSw6YLYLbX+rcXDPq1TPEx8bxfstzPzy7YLT0aGJaf47seyhTdTuFPBWxnIRWP... | 0 |
math | kindergarten | times-of-everyday-events | true | false |
Meg is standing in the lunch line. What time is it?
Choose the more likely time. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHwAAAB8CAYAAACrHtS+AAAdi0lEQVR4nO2de3SU1b33P89cnpnMJRlymSRgApKAQiCBoxyVoJZTAWu1q1xaVy+o56yqVMp63ypI37ZeEPVUQe1aguDbs1ok2nN6QU6rrVz08CqYVgHJxAQRZgIhhMxMSDLJ3G/P8/4xZEhIgMwlCU3yWSsL5rnsvWe+z97P3vv3278tyLIs20Ng9YE7ChGZMUYQKgGMSpiig3wRBHtQlj/tGu5ijTEU3JQJqhO+2IdCEa7Tx56GMUYO7ih86YWWEBz3gaIrEjs... | 1 |
math | kindergarten | subtraction-sentences-up-to-5-what-does-the-model-show | false | true | Which subtraction sentence does the picture show? | "iVBORw0KGgoAAAANSUhEUgAAAGQAAAAyCAYAAACqNX6+AAAJD0lEQVR4nO2c/1MTZx7HX0u+EwgIGFDBigh6pULRDgU719NRa6fXcZzqeV+c0vQ643Rubsa7c67/x/1wv7RzN7GtMyeWju2dWjv28K6eBO5AiqAoYKtB5FKIIZAvG0L2ftgkEJNAgiDZG94zmWWffZ7N55X3s8+z+zzPIkiSJLGqjFHWSgewqlitGpJhWjUkw5TUkDuD3z7NOFLSYmJSGoc6UaL1dAttHV001u/AcuzwsgWWjhYTkxI54q6Q2wN3aevoAqCtowvr6Zb... | [
"2 − 2 = 0",
"1 − 1 = 0",
"2 − 1 = 1",
"3 − 2 = 1"
] | null | 0 |
science | grade-4 | compare-temperatures-on-thermometers | true | false | Select the thermometer that shows the highest temperature. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJsAAAC8CAYAAABvyNwCAAAqdklEQVR4nO2dbZBc1Xnn/+f29Izeu0cQgxPSPTIGvdiMyo5Gwmtpyq5KiAmI3UrKxa6kQUIgjIScDwZv0EI+bJBsylnbCa8p63UkIWLnUySU4E2C0Wg+wAwFmpEAYbzlmcHG2nWMZoSEXqfPfrj33D733PN6+3bfJp6nSnXU3ec+/ZznPud3/uf2nW5CKaWnLgE/+wj4cBK4QjFlU5aKtRBgdg64YQZwTStATl2kdOBM1mFN2X90WzYHaHn3I//BJ1uB+TP9Spy... | 0 |
math | pre-k | tall-and-short | true | false |
Which fence is taller? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAN0AAADHCAYAAACdiVbnAAAWAklEQVR4nO3de3Bb1Z0H8K9kW45jR7aJcBIip3k5iWUweRBboQHSOvHyXALxdsOw3S780U53pkn+SCbDQLIzdrIz2WRnZLstAzNrm26Z5A85LTDQjpxHWxa4cpbCUCIbDGwarh0npHlcv5/aP8wlxrakcx86Mfj7+adT6er4l8P5nnN1X3JEo9Fo5yDwSS/QNQIMR0FENkp1AHNSgILZwDwX4OgciEabtZtdFtHMUOoGUtt6x/7PAhewMnMskURkn64R4KMe4MI... | 1 |
science | grade-6 | identify-ecosystems | true | false | Select the taiga ecosystem. This ecosystem has:
warm summers and warm winters
a rainy season and a dry season
soil that is poor in nutrients This ecosystem has:
hot summers and cool winters
a medium amount of rain
soil that is rich in nutrients This ecosystem has:
long, cold winters and short, cool summers
many evergre... | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAp8AAACtCAYAAAD2xRSHAAEAAElEQVR4nOz9edRtaVnejf6eZnare5vd166idlFVFJRQUBQgCIISmpPgdzLEPggD0aGJw8TYkGAzwkm+fEoGMZ/REHVEQRqTmE+jmEQ0BkFQEEEoukLa6nft7u1WN7unOX88z5zvencVNjlROal1FWusvbrZrpd1zeu+r+sWHzzw/pYhjBVrrLHGGmusscYaa6zxl4KZhU8vQEyN92viucYaa6yxxhprrLHGXzZmFoT33v91b8gaa6yxxhprrLHGGo8O6NUH//o... | 1 |
math | pre-k | cones | true | false | Which shape is a cone? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAARl0lEQVR4nO2da3AU15XH/z2SRqPRG70tCQmCHolhJUwsDAGDDWsHO8QmtY6pfLGp3VrXPhzbW1tbG3sf2a0K3toqZ21vvmQr5cifErzlBKIgxw4QYR7yijiSS3JACIMkJDSgGSTNSKN5aKb3w2i6e4YZIYnb3be7z+8LrZ6ee88MZ26f1z0tiKIoukLAFT/giwALIgiCOzIFID8DaHACFXZAcAVFscert1gEsXy2FgCZQ/7YH1V2oCk3ptUEwRu+CDA4B0yEgMt... | 2 |
math | grade-1 | addition-sentences-up-to-10-what-does-the-model-show | false | true | Which addition sentence does the picture show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABUCAYAAAC4PkCPAAAPeklEQVR4nO3dW2wc12HG8W9m9r5ciRZJRSRFU7YVKRZsC6lUGDJqqUAR+SEybDQGnKcgDVqneYtfChhom6Qt6pcW7UuMFi16AQy0fXCAIkGDBEhS1Jbch9iOK7u1JVmWdaEu5upCcm+zM3P6sKJEydRlxZkze/n/AAHSanfO+fQgfntm5oxjjDECAAAAEAs37QkAAAAAg4SCDQAAAMSIgg0AAADEiIINAAAAxIiCDQAAAMSIgg0AAADEiIINAAAAxIiCDQAAAMSIgg0... | [
"4+1=5",
"5+3=8"
] | null | 0 |
math | kindergarten | count-money-pennies-and-nickels | false | true | How much money is there? | "iVBORw0KGgoAAAANSUhEUgAAAMIAAACDCAYAAADf5cT4AABYXElEQVR4nO29d5Rc13Xm+7uxbuXQ1TmiE9DdyGhkglnMpChKFCXLimOPbFkjh0nvPXs0Y3me15sZ2WNbkoPSyLJlUZREiUEMAJNAECByDg2gc47Vlevm90ehS6RFSgAJkiDR31pYCI269+665/vO3vvss4/guq7LIhZxlUN8px9gEYu4ErBIhEUsgkUiLGIRwCIRFrEIAOR3+gGuFLiOTT6XI5tOkUmnSM7Pk5ufJVvQEYFgNEYwUkbA70fz+wmHIyiqiiAIIAjv9OO... | [
"9¢",
"8¢",
"5¢"
] | null | 0 |
math | kindergarten | spheres | true | false | Which shape is a sphere? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAMTUlEQVR4nO3dy27c1hkH8P8hOReNNSPJcmzUGyMp0qDILigQd9EHCOousuoD9Cn6At30CYqi6wLdFOglmyJokaKIEWQRoMgictu0cGLJF108I400w1sX5DnkjMjh7XBISf/fJrYsxxPOP5+/OTzno/B93z+YA/+aAhMXcHwQtY4lgKEJvD0A7nUBcTDz/c/GTb8sovzeHwHWk2nwk+90gXduBakmapuJC3x1BuzPgb0pYIyd4BcYWmqzoRlkFABOXcBwY79A1GY... | 1 |
math | grade-2 | write-subtraction-sentences-to-describe-pictures-up-to-two-digits | false | true | Which subtraction sentence does the picture show? | "iVBORw0KGgoAAAANSUhEUgAAAfQAAAD6CAYAAABXq7VOAAA2UUlEQVR4nO3deZBcdf3/++fpffYtk4Usk4QETNwSrWBQrvf3ReC6/PTiF34U9fV6v9HS+wflz5ILf2lJYZWl/4QqBL9a5U8iv+vl91MMXrSoBAHLpMAYFrMNBLJNAmGWnszS3dM9vZ5z7h9NZuvt9AYzPa9nFWV6Tvf7nEemx8+kTy+Gbds2SimllFrSuT7oA1BKKaVU9WlBV0oppRogLehKKaVUA6QFXSmllGqAtKArpZRSDZCnHkPt8Rez/429CGYUWrbgWnsXRs9... | [
"51 − 7 = 44",
"50 − 9 = 41",
"50 − 7 = 43",
"50 − 8 = 42"
] | null | 3 |
math | grade-3 | identify-faces-of-three-dimensional-shapes | true | false | Which shape has a rectangle as a face? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAAXNUlEQVR4nO2d228c133Hv9ReKJLLXV5FUdTFtizJkhPbrdu4QQE7aJG6QOEGLZqXIkX7mPwDyVOf/JanAn3rU1ug7UP61KJp7Tax5diSY8ey7qQkkhLFqyiSEkVSpHjR9uE3Z2Y4O7s7szszZ2bn+wEGZzkc7x4Z++X5nd/ttJXL5fLCNjD+FFjbA3bLIISERLYN6M4ApzqBoTzQtvCsXP7iie5pEZI+3ioC2TtP5YfhPHCmS9RJCAmHtT3g1gYwvw3cfgoceLI... | 1 |
math | grade-4 | compare-fractions-in-recipes | false | true | Does this recipe call for more gummy bears or gummy frogs? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFwCAYAAACCdAwbAABgw0lEQVR4nO3deVhVVf///+c5zMokKg7gbJYEaIZgpmZqOSTd5lxRWaSladqdmpklpZZlOf3QNIf4WJnDXVnOpml9qURxnudMFERUBFTm8/uDOHkCRPQcIXk9rovr8uy99lprL63z3ov3XstgMplM/MVkMpGbm0t2drb5x2g04uDggL29PXZ2dhgMBkSk/DKZTOTk5JCdnU1WVha5ubnY29ubf4xGo/4/ISIi5ZohP8DOzc0lJyeHrKwssrKycHBwwMXFRV+UInJdJpO... | [
"gummy frogs",
"gummy bears"
] | null | 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? | "iVBORw0KGgoAAAANSUhEUgAAAbAAAAEVCAYAAACBn7B3AABcYUlEQVR4nO2deXwU9f3/XzOz950DwhVCuMKN1ipyqNVWRcSKx1dEf35Fv0r1W/Vr/Sq2aq1H1Sq1Wm3V0taqrWItVvm2Il71xEpFpVwREUISQkhCkt3sfczM74/ZmZ1NdpPd7GzI7r6fj0dgd2ZnPp+Znde+j8/FiKIogiAIgiAKDPZoV4AgCIIgBgMZMIIgCKIgIQNGEARBFCRkwAiCIIiChAwYQRAEUZCQASMIgiAKEjJgBEEQREFCBowgCIIoSMiAEQRBEAUJGTC... | [
"Solution A",
"neither; their concentrations are the same",
"Solution B"
] | null | 0 |
math | grade-1 | compare-objects-length-and-height | true | false |
Which stoplight is the shortest? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAGgAAADqCAYAAABOZAByAAAJuElEQVR4nO3cW2xb9R3A8e85viS+xEncpGkXQ0rvrWgfkFjLGINpQ6UPFYLtYZeXFXVjmwR0EohJG5dJSHSTJm2rNGkvG9tUwVDKtjIqxqjUwTQlsE3TyoIgBirR0qS5247tnGOf/x5O7BKa0nY0Pj+c30eyUt+UX/XV+fv4xD6WMcaMOJAtQr4KFYMKUNiCthBsiENPFKyROWNeyQU9llrMjhSEh4v+ldVR2JTw66ng5KvwxiycceDNIti5in+HxpGhLeS3ACh... | 2 |
math | kindergarten | subtraction-sentences-up-to-10-which-model-matches | true | false |
Which picture shows 7 − 2 = 5? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUQAAABKCAYAAADDly0CAAANZUlEQVR4nO3da3Bc5X3H8e85Z2+6rK5GsolxGoMgBHBiO7UxNIUODZ0kpWESGlHcFjVDO3SSF73QTl60M+kw0+llmhd905YkHU2Kk9IEMLSETEimZKZEjhQMloiNLWyCA7rZkizt9VyfvtiLdnXbPauz1lr+f95Iu9rz6Pn5eH46t92jKaXUlAVvpSHhgqMQQoirQkiDuAF9zdAbAW3KVGp4cbOnJYQQm+tgG4TG07kHOyJwU0uuLYUQ4mqQcOF0CiYtOJMGfdH... | 2 |
math | grade-7 | nets-of-three-dimensional-figures | true | true | Which net will make this figure? | "iVBORw0KGgoAAAANSUhEUgAAAGQAAABkCAYAAABw4pVUAAAQT0lEQVR4nO2de1SU9dbHPwMMchEHQUkUG1Aze8ngZFleclAzqVRQs7RS8HoULwyK6FvooCnmEQI0QyWDLC/lBY/iOW+WDuibaEdztEMn8cIgJmiMiNwZ4Dl/IBxflxeGucLLZ61Zi1k8s/d+1nee3/P77b2f+YkEQRBowWRlZTF79mxEIhGJiYl4e3ubOyT9EFooGo1GmD17tgD8n9fs2bOFW7dumTu8ZtMiBdmwYYPg4uIiAIKza2dh/soEYd7KeMHZtbMACC4uLkJ... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUkAAACzCAYAAAAE9O5jAAAV9ElEQVR4nO3de1hU5b4H8O9wFbwMhuG1gAQkwWt5oTAG0y3mBTVLyxTaqYWpoHuDaSqkO620QCTFoztJt5ftDRU8Z287yMWU6NHd0Ja24QVIjpCCBsN9wDl/4ExauhSYmbVm+f08j8/46DDr9yrry7tm3ve3FAB0IMnQ6XQobQAu1gCaJqCR/ztEZmWjADpaA56OQFc7QAGGpKSU1uvwbaXYVRARAAzrBNiIXQTd7UJN82N3O6BP++afaERkPpom4MdqoKQByK8... | 0 |
math | grade-7 | nets-of-three-dimensional-figures | true | true | Which net will make this figure? | "iVBORw0KGgoAAAANSUhEUgAAAGQAAABkCAYAAABw4pVUAAAQ9klEQVR4nO2deViU9drHPwMoyDaouLDU0IKanQ6W5608nc5Yltl2gS2eY0cdFPQUpqKJyjGboZR8BQNPF6YRMmpuhUIuLXbhgGZohYwpahgyowQEIrLKyAzP+8fIvGlgLLOBfK5r/hh4nt9zX/OduZ/fvc2IBEEQ6MVucLC1AfZAeno6MTExaLVaW5sCwi1MYWGhMGHCBAEwPZYsWSLU19fbzKZbUpD6+nohOjraJIKHm6sweuQw03M/Pz9h+/btNrHtlhNk27Ztgp+... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAUkAAADlCAYAAADeIwWJAAAZR0lEQVR4nO3dfVxUZd7H8c+AjyiOis9aUCI+ZaitKd260NqTm95aq21PBq5oqamkWWtlYmW5mwZl4l2kYmqru6SWurl1m5JraPei2IYVpkKR+AAZoAjCMPcf40yieFYQOAPzff8zL89LZn7nNZwv13XO+V3HAtgRt2G32zl2Dr4rhAIblOrbEalVDSzg6w3dfKB9I7CgkHQrx4rtfJFvdhUiAjCwBTQwuwgp72Ch47VjI+jezPEXTURqT4ENvj0D2ecgvRC8zC5... | 0 |
math | calculus | describe-linear-and-exponential-growth-and-decay | false | true | How does h(t) change over the interval from t=
–
5 to t=
–
3? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAAB0JUlEQVR4nO39e3yU9Z03/r+uOWSOSSbkfCBBRFMDSeQQMRwqLq5a6bqFdhfro3btut3qXa3WPth1d3vv494+fHj3/vX0rauta23VHry1rugtYECQCBgUJEIwURE5hASYZCZzPl5zuH5/jAmEYwauT65M8nr+oxkyr7xzXTPXvOaTa2YkRVEUEBERERGRKnRaD0BERERENJmwYBMRERERqYgFm4iIiIhIRSzYRDTKihUr8PLLL5/z39577z1cf/31SCQSAID/+3//Lw4... | [
"h(t) decreases by 1",
"h(t) decreases by 2",
"h(t) increases by 2",
"h(t) decreases by 3"
] | null | 1 |
math | grade-2 | compare-sides-and-vertices | true | false | Which shape has fewer vertices? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAALgAAAC4CAYAAABQMybHAAAMSElEQVR4nO3de3CU1RkG8Gez2RAIkAmmJMEgBOISbmPpUEAJMBiYioaigDSpt9bBMrbYaRUHseqgbUVHxVKp1kJxNENBIBC5zzSpNYBUpKVOCCFLIFGiWTSSCZCQ2+brH8s6TE3IJjnfnsv3/P5zItl35PGd3ZPvPHFZlmX5W4CKRuBiAGizQKStaBcwwA3c2A9IigFc/mbLOnJB9lhE4k0eCESfagz+Q0oMMCoumH4iXV0MAOUNQE0L4GsEoi60Bb/AcJMJBri... | 0 |
math | grade-3 | compare-fractions-using-models | false | true | "iVBORw0KGgoAAAANSUhEUgAAAtUAAAC5CAYAAADnGsNjAAAwa0lEQVR4nO3deXxMVx8G8OeOZDJJJvsmm50mghBbROxULFWU1lZrLbUURVHVUlVab6u0aCmqlGiCtkKkdrHElsQWghCR2JLIIolMljnvH5FpRnaDWJ7v5xPN3Ln33N+5c5s8c3LuHUkIIUBERERERE9MVtEFEBERERG97BiqiYiIiIh0xFBNRERERKQjhmoiIiIiIh0xVBMRERER6YihmoiIiIhIRwzVREREREQ6YqgmIiIiItIRQzURERERkY4YqomIiIiIdMRQTUR... | [
"=",
"<",
">"
] | null | 1 | |
math | grade-2 | place-value-models-up-to-hundreds | true | false | Which place-value model shows 160? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARoAAACSCAYAAACaJwW7AAASZElEQVR4nO3da4xtZ13H8e961r7fZs/MmZnTQ7kU2hK5HS7SFtoKhBBBrKASUEJMKsobIyIh0cQQE0hQE8MLYzRi1BglgRKaciliS5GLGm0iFA1IKdCe0p7LnJl933v2Za31+GLtPbPv59TOmt2Z/fskO6dz1jrP+s8+s37nWc/z7KeOtdZe7MIPW1D3wbOIiDwtMQfyLtyQga0EOBc71j5YW3RZInJS3VyA2COt8ItrEvDCbJhCIiJPR92Hh5twoQs/aIGpeeE... | 1 |
science | grade-6 | compare-magnitudes-of-magnetic-forces | false | true | Think about the magnetic force between the magnets in each pair. Which of the following statements is true? The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different shapes. | "iVBORw0KGgoAAAANSUhEUgAAAXwAAACBCAYAAADDnAG5AAAayklEQVR4nO3de1xUZf4H8M+ZYZgBBoYBuQpIgoXhfb2UmqVRgFm6Xip31dbMLqu1/V655VZbav0id9vf2ma/zMzUdbXMMi1Fu6xapilrKiWCIYoioAgzAwPMMMyc/YMgkWGYc+Zc5vJ9v169VoY5z3nY15cvzzzneb4Pw7IsC0IIIX5PIXcHCCGESIMSfjeOHz8OhmE6/RccHIyMjAwsXrwYZrOZU3vTp09HVlYWr7788MMPyMjIQGRkJK/rCXGXt8R9UVER7rnnHsT... | [
"The magnitude of the magnetic force is smaller in Pair 1.",
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is smaller in Pair 2."
] | null | 1 |
math | grade-5 | rotational-symmetry-amount-of-rotation | false | true | This image has rotational symmetry. What is the smallest fraction of a full turn you need to rotate the image for it to look the same? | "iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAAAhPUlEQVR4nO2deXhU5dn/v/dzZpIwyWQmQBCQRRQBi1r3uou2dafqa4ckotZqlbfu2UT7vtb5ta+tSBLcsAVfX61WkhC3uu/iWrdS3MUFFRDZM1vWmfPcvz8CGmKWWc55zpnhfK6L64LMOff3DjPfOec8y30DDg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4O1rAxsLDI6hwcBoesTmBnIxq4pVQX8T+CcDa... | [
"1\n15\n of a full turn",
"1\n11\n of a full turn",
"1\n8\n of a full turn",
"1\n12\n of a full turn"
] | null | 3 |
math | pre-k | subtraction-sentences-up-to-5-which-model-matches | true | false |
Which picture shows 4 − 3 = 1? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAABKCAYAAAAi2W96AAAMT0lEQVR4nO2dW2xb933HP4c3kRRJiZRkSbYs62ZbkuNbItuz4yR1Otut12xY6wFFjQIGMrQdVqDYHvpQ9GFrn/a2bkBfNjTZGnsrkKBdg2RoVqBFUUSy3MiKbEuxJepmXU2JkkWJEq+nDxRJ8SYeUxQpnv0/L9L/dvj78fflOb9z/n/+KcmyLM/5YcQLnhAEZQSCPYdOAqsWDpuh1gDSnE+We1eKbZZAoJxzNtANeyOFegMcLY+oWiDYa3hC8GgNZv3w2AualWC... | 3 |
science | grade-4 | compare-properties-of-materials | true | false | Which is the bumpiest? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKUAAADCCAYAAAAo2gI4AACKzUlEQVR4nOy9d7hmeVXn+/ntvN988qlzKlenqk7VOdDdpEYEBIZsBmQwjs7oda7X0WHmOnrHUWeujjpmUVBBgoIgAhKazjmHyrlODm/cee/f/eO333BCVTcyt2mep9fzVPc579nvjmuv3wrf9V3ioYaUFxehrPOyvCwvqrRSONiB2QiGDLilpj7XXlbIl+XbJWUdLi6qn9tp/3PtZYV8Wb6d0tW/WPY/M57vS7/6hV/lP33mP/GG/ddy00WX8LG7vsHVO3fx+su... | 0 |
science | grade-5 | predict-heat-flow | true | false | Two solid blocks are heated to the temperatures shown. The blocks are placed so they touch. Which diagram shows the direction heat will flow? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAKQAAADaCAYAAAAonenwAAAPOklEQVR4nO3dW3BU933A8e85Z/fsRUISkgXoAgJJgM3N2IANBtzGTsI0F7uu3fgybXqZxm7rmTz0IZ3pS6d9aGcynnYy05nmMo1nEjshGTuZBtshdmjrmgLhqvgmbAECLCSBBLrv9Vz6cHRHgDBa9qfd3+fFXnZ1OCt9+f/PObv7l+H7vt+dgVMJGHLB8VHqtgkZsMCClXFYbIPRnfb9w4P53i2l4P4yCLUlghs1NqwuCWpV6nYZcuGjEejKwMcJMAed4A6NUeX... | 2 |
math | precalculus | find-limits-at-vertical-asymptotes-using-graphs | false | true | The graph shows f(x). The dashed line is a vertical asymptote. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH3CAYAAACBwSh7AAB1TklEQVR4nO3de3hT150v/K+ulnw3NtiOwQbCJTHhZgLBAQfS0IZCmim0lHSmnabt9J3pSa/vzLzN5O30PaeHZnKmk85JJ82kPZMmmWmfScM0lwZiElKuMSEQAwabS4wDxhdkW7Ys67Klra293z9kKRhskO29dOP7eR4ekLT19UKWln5aWnstg6ZpGoiIiIiISBfGZDeAiIiIiCiTsMAmIiIiItIRC2wiIiIiIh2xwCa6iezZswczZ87Exo0bk90UIiKijGXgSY5EN49... | [
"$\\lim _{x \\rightarrow 6^{+}} f(x)=-\\infty$",
"$\\lim _{x \\rightarrow 6^{+}} f(x)=\\infty$"
] | null | 1 |
science | grade-4 | identify-vertebrates-and-invertebrates | true | false | Select the invertebrate. Hint: Insects, spiders, and worms are invertebrates. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK8AAADMCAYAAAAF8vOBAAD2u0lEQVR4nOz9d5hlx3XeC/+q9t4nds5peqZnpicnzCAnAiQAJpGykuUkydL1Z326smV99rWu7/306Vq25WvrykHRlCWZEkklUhIzCRAkARAZAwwwmBx7ejrn7pPP2XtX3T+qap8zIEBRwj/3ex7t5wGmw+lz9q5atepd73rXKnFyS+u9eWj3+Jvrb67/R17FGC6VYaEB3T7c32V+Lv/GcP/m+n/61e7B3rz5uhQ3fy7/xnD/5vr/h8vZaaibP/Pf7oX/7Bd/GgC... | 2 |
math | grade-8 | compare-linear-functions-graphs-and-equations | false | true | Function A and Function B are linear functions. Which statement is true? | "iVBORw0KGgoAAAANSUhEUgAAAjcAAAGlCAYAAAAGbtd7AABOhUlEQVR4nO3de3xT9f0/8FeSJk2btrQWUi4t0OKqaCtFwRYVGSgC4mUql6lD5Dtl20+8bOLm5r4475fp3PYdygOdd+eFLxu3fRUfFJBrQaZCVaiTtNhSm0JpaNOTez6/P1hiC6VJek5ycnk9H489HDkn77wT3vnwznmfk2iEEAJERERESUKrdgJERERESmJzQ0REREmFzQ0REREllbCam4EDB0Kj0Zz2f5999lmU0wzfq6++Co1Gg4qKipg/9kcffRR8Tc4///yYPz4... | [
"The y-intercept of Function A is less than the y-intercept of Function B.",
"The y-intercept of Function A is greater than the y-intercept of Function B."
] | null | 0 |
science | grade-2 | identify-plants-and-animals | true | false | Select the plant. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK8AAADMCAYAAAAF8vOBAACrwElEQVR4nOz9Wax1SZbfh/1i2OMZ7/jNU841Z1WxZ7O72egmxQk0RImQJTVt0aQFC7Bsi4IIUYQB22+WH/jgB1kGTNiUKJtqihJJyQQpNtlNdru6u+aqzMo58xvvPJxpzxHhh33O+c49d59775dZtGmgF/BlnruH2LFjr1jxX0OsJX5v4NzrLegofp9+n/6FpJGBdyewU8Cahv9Bvz4uf59xf5/+RaeOgtdb9e+xeX5c/j7j/j79/wPN+LR0z4/ppgv/6l/5XwM... | 1 |
math | grade-5 | interpret-bar-graphs | true | true | Some students compared how many pets they have. Which table shows the same data? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFVCAYAAADVFZieAAAxe0lEQVR4nO3daXhUZYL28buyVMgeSIAAAQxIApGwQ9gRtTUKsqhsl1EbRGxEsd2mGV8ZRrRRZ7rVdpiGQUVRBxkQXBACRjQBEjsGJOz7EsIS1pCFkKpUqt4PXFRbBsJ2yKmQ/++T59TJqbsAq+489ZznWFwul0sAAAAADOFjdgAAAADgZkLBBgAAAAxEwQYAAAAM5Gd2AABXx2azafLkyR77goKCFBkZqaSkJA0YMEBWq/WKz+dyubRmzRr5+Piob9++RscFAKDOoWA... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA7IAAAFVCAYAAADSXtPnAABODklEQVR4nO3dd3wUdeL/8femkkZCCL0ZOpEOEqkBREHpIAIHiKCCAuKJivwQzi+i6CnneZ5KUwT0kANBBUmEiISSKL333kNLSCEkm2T398deFpdACBgyu+T1fDx4hJmdnX1P+jufmc+YrFarVQAAAAAKhMlkMjoCcN9zMzoAAAAAAAB3giILAAAAAHApFFkAAAAAgEvxMDoAgDuTkZGh0aNHO6zz9fVVyZIlFR4eroiICHl5eeV7f1arVevWrZObm5tatWpV0HE... | 1 |
math | grade-2 | which-shape-illustrates-the-fraction | true | false |
Look at the colored part of each shape. Which shape shows two-thirds? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHwAAAB8CAYAAACrHtS+AAAUh0lEQVR4nO2deXxU5bnHvzOTzJLJZE9IyEJYAkkIyBYQkIqAyioo2qvtVUuptb2t3Vul2lZs+2nr9bafLrbYWotYa21xYV8qAiIRgoCQQBK2LCQkk22STCaTWc/948xE6pULOXPOnBnJ95+o43meJ/nNe8573vd9nkcjCILQ4oZzfWD3gVdgiE8QMRqw6KAgDobpQdPiEoTyHrXDGiIczEiAmLN94r9k6WGcWfw2DPHJwe6DGgc0u+FMH2h7vOIHQ2J/MrHoRG0... | 3 |
math | grade-2 | am-or-pm | false | true | Gabby is playing in the snow one morning. Her watch shows: What time is it? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABP6klEQVR4nO3deViU97k//vewDaAwg7IIqDOgEcFEcIlbIkuMJtGo2Cw9TdKCp9lOT9Ji2/QsXcTT9vTXpqdik57TNslXsjVpGiPGmEWjjrgFY3BwAVGBQVFEQAZQmGFYfn8gE5ZZPjPzDDPA+3VdXIGZz/PMHWSuuecz93Pfsp6enh4QEREREZEkfDwdABERERHRaMIEm4iIiIhIQkywiYiIiIgkxASbiIiIiEhCTLCJiIiIiCTk5+kAyPNMHV0wGTvRYexEh7ELHcZ... | [
"9:00 P.M.",
"9:00 A.M."
] | null | 1 |
math | pre-k | circles-squares-triangles-and-rectangles | true | false | Which shape is a circle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACbCAYAAACao4KyAAAMIklEQVR4nO2d649dVRmHf2vf97nPtZ0ytLW00FKs2NYCNWiMXISieEk0Ev87jYQvgighDRECqGhDBYwtpTMQCp1Op9NzZs5t3/defjiMFoLUs++X90mayczk7L06+znvetd611qHcc75dQdYNYChD3gcBBEZiQFNEThUA3YpALtuc35ukHWziDLzQAuQVozJN0sKcE99YiFBRGXoAx+MgXUHuGwAwsCb/IIkI+KkKU6cAoCRDwj+Lb8giDjZccrlgJBtU4iqQKI... | 0 |
science | grade-8 | compare-amplitudes-wavelengths-and-frequencies-of-waves | true | false | Select the graph of the wave with the greater amplitude. The graphs below describe two waves. The waves are traveling at the same speed. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAASwAAAEsCAYAAAB5fY51AABzZUlEQVR4nO2dd3gc5bX/v+edbWqW3MHdxgVsXLSzsqnBpmNjWjCBAKElAVJuQnLTbxJDuGm/mxASSIAkkEAIiQ03yBJGawN2AGNA2rXB2GBwA/cqq22f9/z+mFkhy1tmpC0Sdz7Po0fSzlvOuzPvmbedcwAbGxsbGxsbGxsbGxsbGxsbGxsbGxsbGxsbGxsbGxsbGxsbGxsbGxsbG5ti0dDQMKiuru4/rOSpq6tbbCV9fX39N2trayvMpq+trZ1YX19/Qz5lspq... | 0 |
math | grade-1 | select-three-dimensional-shapes | true | false | Which shape is a rectangular prism? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAMsElEQVR4nO2dXXBcZRnH/2eTTdM0TWrApAVKirQJ0jEUCxTUKRUdi6MUvQAvVIYZv/BOnFHHC7gQr1Bn8Eq50BFmvAC8adSZwihfTotAYZoisOkHttOE7pbWJtl0m2azOV482d2zZ/fs7jl7vp7t/zeT2fPxvu95z8l/332f93nO+xqmaZrpReBYDsgWgCUThMSOTgNY2wFs6QGGugAjfck035iLulqENM+OPqDzaE52NnQBo2tE1YTEjWwBmLwAnF4EjuSAxNy... | 0 |
math | kindergarten | times-of-everyday-events | true | false |
Jon is driving home from work. What time is it?
Choose the more likely time. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHQAAABzCAYAAABJnyafAAANrklEQVR4nO2de3RUxR3Hv3ffr2QTyGMDIU8C4VFIQQSxKAaLVYO2QtWicFRslYpVIAhWREBaqwWPp0eUP8BWRHpoBUVEezxFEBAFeSoQEogJBMyGPHaT7G72ead/LNnd2+zr3r3LJpv5nLPnzMy9v9/M7ndn7ty5c2cYQggxOoELNqDTA7gJKH0IGQOkSIESDZCtABijg5AjHYkuFkUMJqYCsvM2byRHAQzXetWm9B06PUC1FWh0AjU2QNLh9h6gYvZNUqRe7QD... | 1 |
math | grade-7 | front-side-and-top-view | true | true | If you look at this object from the top, what will you see? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADiCAYAAAB0rbDnAABJ90lEQVR4nO3deVzTd7o+/AtQXEDjUjapgFur4IK0ToHpIzqni609IxR/oz5Uxb329NQg/tpp5yggp51umDjtGatYRa1VOzJgWxXHngI+HVywmiqidY1QlpgBEwgIkcDzx9d8KxE0QFa83n/VGJIPg6/X3Lm5Pvft0tLS0gIiIiIiIrIIV3sfgIiIiIioO2GBTURERERkQSywiYiIiIgsiAU2EREREZEFscCmLtNoNFiwYAFcXFyQkpICjUZj7yMRERER2Y0Lp4hQV6x... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA3gAAADwCAYAAABSZcZmAABWgElEQVR4nO39eVjUhfo//j8HFJXFwYVNlEWxEETR9Aic8xPpXWrhSQneR71IxT07Hh3ET2bnI4tclVnIaJ1jiiJuqR0JLLeyT4DfDq7ppIhmLiPEMpI4AwPK6MDvj3FeqbmwzIrPx3W9rwph5uYd57p4dt+v+xYBaAIRERERERlEU1MTKjXApXqgVgvc5W/bZEQdRICTLdDfHnCzA0RgwCMiIiIiMpjKhiYcrzF3FfQsGtEV6GDuIoiIiIiI2pNf6nV/9bADnnf... | 0 |
science | grade-6 | identify-rocks-and-minerals | false | true | A marble has the following properties:
made in a factory
solid
not a pure substance
no fixed crystal structure Is a marble a mineral? | "iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAABXh0lEQVR4nO392ZMkSZLmB/5YRPQwM7/iysijsqq6u/qeWmDwAGCWsARg9xH/KQhvSyDC09ISgEUvMINB9/TW9FmVVXlnnB7uboeqyrEPLKKq5uHpnjVRhcyMNCby8HAzNTM1VfmEr4+ZJaWUOMhBDnKjmG/7BA5ykO+yHABykIPcIgeAHOQgt8gBIAc5yC1yAMhBDnKLHABykIPcIgeAHOQgt8gBIAc5yC1yAMhBDnKLHABykIPcIgeAHOQgt8gBIAc5yC1yAMhBDnK... | [
"yes",
"no"
] | null | 1 |
math | kindergarten | count-money-pennies-through-dimes | false | true | How much money is there? | "iVBORw0KGgoAAAANSUhEUgAAAMIAAACDCAYAAADf5cT4AABvZElEQVR4nOz9d5zd91Xnjz8/9X5uL3OnV03VzKj36t7t2ClOQghJFtJggQBJWNiFBwn1xwMWls0XCLDJkoRNT+wkbrHlKlmW1bs00kjTe7l3br+f/vvjztzYWceRbLmwzHk89FAbje7r/Xmfz2mvc47guq7LsizLf3AR3+oPsCzL8naQZUVYlmVhWRGWZVmAZUVYlmUBQH6z/iPXsSnk8+QyabKZNKmFBfIL8+SKOiIQjMYIRioI+P1ofj/hcARFVREEAQThzfqYb4i... | [
"9¢",
"11¢",
"10¢"
] | null | 2 |
math | pre-k | count-sides | true | false | Which shape has 4 sides? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAGT0lEQVR4nO2dS08bZxSGX3NbpEm760VZ97Lpmj/T39cEBSkbuonUDbsYkBIRlKZUiEUCVIIFOEYO2EwWn2go2Nhjz3e+c3kfyRL2zMQj9OB4zrznO62qqqqjC+Cfc6AzAPoVCJmZhRbwaB748QHw3RLQOvpUVe2z0qdFPLP8NbCwe56e/LAE/PxVspCQWekMgHdd4PAC+PscmDvrpw2UjDTJo/nkFAB8HABzgxsbCGmSa6cuK2Cu7KmQKFA0IgJFIyJQNCICRSM... | 1 |
math | grade-3 | open-and-closed-shapes | false | true | Is this shape open or closed? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABkCAYAAAC8REciAAAKV0lEQVR4nO3dQUicZx7H8V/LXtRMhMRDEmZyU8HmoJEuOIFUyIRUqi5kIU7cHmrBITSwSZsMdA/RxB52ISa0gS1EYc1hMWMvYWPLJGDCGJgJLDvRgxZee/MN2oMWdOx4dA+Td2pNUtPkeecdZ76fY4zv+3j78vB/nvetjY2NDQEAAAAw4m2vFwAAAACUEgIbAAAAMIjABgAAAAwisAEAAACDCGwAAADAIAIbAAAAMIjABgAAAAwisAEAAACDCGwAAADAIAIbAAAAMIj... | [
"closed",
"open"
] | null | 0 |
math | algebra-1 | identify-linear-functions-from-graphs-and-equations | false | true | The graph shows a function. Is the function linear or nonlinear? | "iVBORw0KGgoAAAANSUhEUgAAAfwAAAH8CAYAAAA0Uh0TAABu5ElEQVR4nO3deXRU550n/G+pVu0SElpYJNlmC1iAMZjFEOPGbTt24hiSHhxPFqfTfcaZrD1net5Mn5683TnGkzndSXfcdhJnJmM7/XaW9gm2g0FgjNksBYFkJJDYhEAbUJJKqn2591bd5/2jXGVkSaBC9VBVqu/nnBxHRdVXj+6te3/3ufe5zzUIIQSIiIhoRstJdQOIiIhIPhZ8IiKiLMCCT0RElAVY8ImIiLIAC34aaDnmx4F97lQ3gwgA8Jvf/AaNjY3xn8PhMJ5... | [
"linear",
"nonlinear"
] | null | 1 |
science | grade-6 | compare-magnitudes-of-magnetic-forces | false | true | Think about the magnetic force between the magnets in each pair. Which of the following statements is true? The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different shapes. | "iVBORw0KGgoAAAANSUhEUgAAAcYAAACBCAYAAABaSBpJAAAd6klEQVR4nO3deXhTddo38G+WJmmSNm26hw5tIW2BFivbsBWF4gAqAjKCLL644YM7jpe7jjPPjMwL8ygqjqiDTnXUCvKwqFC8FAGhDFux1JZhKdCFtmlTmqWFZmty3j/6thOk0JzkJOc03J/r6gVtTn7nPsq398lZfkfEMAwDQgghhAAAxHwXQAghhAgJNcYQmDNnDkQi0WVfCQkJmDp1Kvbu3ctqrMrKSohEIpSUlLCuw+1245VXXoFYLMZbb73F+v2E9HdCyKLb7cb... | [
"The magnitude of the magnetic force is the same in both pairs.",
"The magnitude of the magnetic force is smaller in Pair 2.",
"The magnitude of the magnetic force is smaller in Pair 1."
] | null | 0 |
math | grade-2 | read-a-thermometer | false | true | What is the temperature? | "iVBORw0KGgoAAAANSUhEUgAAALkAAAEOCAYAAADVFbYlAAAdiklEQVR4nO3dfXAT550H8K8lm1fJNkmay7pJmxwnhRQSjCA0vERr39zNtYg0UK6x7lpS7iIygaSJ3bRO0sMEMG0a93Ly3LVJG5RAcHsj5iaBHhbtXe8KqyYpacLazlESpHF4SfC6JA6yV2AwGN0fRotl7cqSLPtZrX6fGc3gZ/XsPp75+eHZ57UoFovFQIiBFasltre3IxKJoL2tDZHe3okuk+5UVVWhvLwclZWVrItCslA0vCbfsWMHGjdtQk8kgpkzZ8Jut8NqtbA... | [
"0°F",
"10°F",
"15°F",
"5°F"
] | null | 0 |
math | kindergarten | select-three-dimensional-shapes | true | false | Which shape is a sphere? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJ8AAACfCAYAAADnGwvgAAAQiklEQVR4nO2d33Pc1nXHvxf7e5fkUiQlUhRJSRZFqbIcx6lTZ5pO3Bllxk6VTpXkoR4/+U9rXjzj6YxnlMSZeFJ3+iOtU8dt5Sq0RFG0RFJkKIqiuNxdAPsDuH0A8WOXC3GBBXAvFvfzIgi8AC4WB+fg3HPuuYRSSneawEMZqGpAm0IgCIU0AUZTwOUiMJ0FyE6D0i8OWXdLkDTeGgPSq7Lxn7NZ4ErJkEyBIAyqGrBSB/7UBB7IgHTYNv4gBE8QNqMpQ84AoKY... | 1 |
math | grade-1 | select-three-dimensional-shapes | true | false | Which shape is a rectangular prism? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAARAElEQVR4nO2dW3Rc1XnHf/ucmdHdsizZsgnBgMFcbLBpuXYtIKEkEHMpl3IzrOQhaV/ywkN5SNqutivt6krXarJW+9BF+9AmKVAWi8TcQrgEQlgJDk2MDaaAbQLY2PJFkiWNPNacmbN3H87MSMKWJZ2zpZmz5/s9aEYz53zzaemvrf1d9t7KGGMOBrCnAPkQygZBaDgyCrp8OLcd+nOgDhaNeXOs3m4Jwty5Yglkdheib1bl4LyOSNWC0GjkQ/jgGAwEsKsA3lg... | 0 |
math | grade-8 | describe-a-sequence-of-transformations | false | true | What combination of transformations is shown below? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEyCAYAAADA5Kd8AAAvW0lEQVR4nO3deViVdf7/8ddhF0VFQREEQ0lNBUXUzH3LBdMynXKmRmeaavqNzbQ6NdX0tWWamtKs3FLTXFrMNbTUslxy14PimgsiKEcRFZUdhPP7g4GZxhLQm3NzDs/HdXldcTrn834hevHi4+fct8Vut9sFAAAAwBBuZgcAAAAAXImH2QEcbcmmz/Tyx391+NyHEl/SLTmtHT4XVScwpr56z2hvdgwAAFDN/KRgW61Ws3I4RF5Brt787BVTZlOuXU+69ZLL/50xW0x... | [
"rotation, then translation",
"rotation, then reflection",
"reflection, then translation",
"reflection, then rotation"
] | null | 1 |
math | algebra-2 | match-exponential-functions-and-graphs | true | false | Which graph matches this equation?
\[ y=-\left(\frac{1}{2}\right)^{x}+6 \] | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAVUAAAE1CAYAAABX+HN0AAAimklEQVR4nO3dfXAT550H8K8kW/KbsEss2wSwMaTg8GpwWttpgjEtAdIwV8glIRxtAoGWFDpNm8wVMpOBuWsSQgl318klpElKPOFCGV4mh2l5SRtypBObBGPRgcTgAAYMfgMjv1uypL0/hFYSNli2d7W72u9nxoMkS3p+Zr1fP8/uPo8MgiAI9S7gm06gzQO4BRARUZhiDIDVBHw7AUg3A4Z6pyB80ap0WURE2pc/DIip7vTdGWEGJiT6EpeIiMLT5gHOdAB1LuB... | 0 |
math | grade-6 | rational-numbers-find-the-sign | false | true | The number line shows an unknown number, w. Is w positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAlwAAAApCAYAAADgbPfrAAAGpElEQVR4nO3dXWxT5wHG8ec42HFjAnjIVJkWlFa7GClSCklMgqIuGtOkwVDrDHXjhmVCYgWxqnes20U7CejQNKmaYIKJaRUaUdZJJhtttI9eYEeVYod8SS7ZCkqssNGOr5WU4CSGnF34g4Y0OC6xj23+vyuf46Poic7N4/d9z3sM0zRNAUAR6ejokGEY2rlzp9VRkCfccxS7ZVYHAIBsXb582eoIyDPuOYrdogtXPB5Xf3+/QqGQ1qxZU1S/Mt4celt/HuvR0LWLWlW... | [
"negative",
"positive"
] | null | 0 |
math | grade-7 | which-is-the-better-coupon | true | false | Which coupon will save Jenny more money on a chest of drawers originally priced at $83.00? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAASYAAACTCAYAAAAjtLSoAAAl0UlEQVR4nO2deWBU1d33v+fce2cSErKRhZAQIIGwhMUIiKwuCO7ggthH29ra1qf1sa9V66utdrF93travrUuVR77tGqfat0qiuLCIgi0bAEFEkgISdgSsu+TZOYu5/njZpvMnczMnTvJTHI+/wB3zvndMyH3e8/yWwhjjFW7gFMdQJsKKAwcDoczpIgEGCsA08YAaTaAVDsZO9A63MPicDgcnUVxgFjaof8j3QZMj9FVi8PhcIaSNhUocQAXXMDJDoC2KvoHXJQ... | 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? | "iVBORw0KGgoAAAANSUhEUgAAAmwAAAGZCAYAAAA0Im0SAAB/ZUlEQVR4nO3de3xT9f0/8FdubZombem9KeVOgtwKbeUyUQoOh9KimzqleNl+Sut1Q4vOO2W66ZTqNp3a4tcLasGNTaWATp0togKaAuWeAnJrUwr0ml7SNMnn90ea05w2vZJbT97Ph9jm5OR83gntm/c5n8sRMcYYAlht7UWcOnUa7e0miEQiX4dDCABAJpMhNjYOo0aN8nUoRMAo/xF/RPnPNamvA/Alm82G6upqMGZDUFCQr8MhhKe29iISEhIgk8l8HQoRIMp/xJ9... | [
"neither; the samples have the same temperature",
"sample A",
"sample B"
] | null | 2 |
math | kindergarten | flat-and-solid-shapes | true | false | Which shape is solid? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMwAAADMCAYAAAA/IkzyAAADD0lEQVR4nO3VP24VVxyG4d+9/lOAnVROlJICsgQvzOtgY+yAGIkyjtLZYAnjq0kxICWiyVuNLT1PNUenmK95dXbLsiw3DzMf7mfuDjOPywDfHO9mzo9mXr+Y+fV0ZnfzZVne3W49C56+y59mjq/v18NvpzO/v1xrAlZ3h5n3n2f+fJj5435mf/u4XogFfnR+tLYxM/PpMLM//OsC+NH3Nr4uM/ttp8DzIhgIBAOBYCAQDASCgUAwEAgGAsFAIBgIBAOBYCAQDAS... | 1 |
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