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-1
which-table-is-correct
true
true
Jen went to the furniture store and saw:She decided to count how many of each there were, so she made a table of the furniture she saw. Which is her table?
"iVBORw0KGgoAAAANSUhEUgAAAT0AAADUCAYAAADup/RjAABCkUlEQVR4nO29WZCdx3nf/evudzn7mQWzAIMdBMBNosiP1s5oiW1VUmWXc6FsX3whKVVREktx7MS+cuIqp1wqxzfJV+UkVU5S5Rt5SWTHTCRLlmOajheSkUhaFMUVg3WAwWxnf9fu/i7egwEpEhRAzHbm9K8KNTNn+pzp98U5/+7+99PPI37xF3/R4nA4HGOCB/Cv//W/3u1+OBwOx44gd7sDDofDsZN4u92B/U6WxETrSygpEKIYY0yWQD4oGhi12VZ5EpRCSUns1Wg...
null
[ "iVBORw0KGgoAAAANSUhEUgAAAnQAAADUCAYAAAAV6r4IAABso0lEQVR4nO39d5ydR333/79mrnbqni3aXfVe3G0ZYxtj44oNJLSAqeH3A0xi7mAbEmruAIZAchtCcocbQk9IAoRmDI4DxhVj02S5YmMk2VbXSqutZ/e0q8zM94/raCUhyZYsaes8Hw89JJ1znbNzrpX2el8z85kRH/vYxwyWZVkzxMc+9rGJboJlWdYx5wJcf/31E90Oy7KscWEDnWVZ05Gc6AZYlmVZlmVZR8ed6AZMd3HYoD7YgyMFQqT5WcchJLX0AO2MHeu...
0
math
grade-7
nets-of-three-dimensional-figures
true
true
Which figure will this net make?
"iVBORw0KGgoAAAANSUhEUgAAAM0AAACmCAYAAAB5jwvwAAAOQUlEQVR4nO3dfVBU570H8O+BxVWUiATBxEUF39YGXEunZezkltg2CU5iO5naJG2CSabkgpgo3Jhes5A4BiF6JZfh1heIN3XiS43RTpqkqbSaRIZMvJvpUHAVFlF8AZQFiugqr/ty/1C24q7CgbPnnGW/nz+Z457fwn59zp7n95xHcLlcLhDRsAUpXQCRv9EoXcBoVFdX45NPPsH69euVLoWGaSxc2PhlaDo6OmA0GlFaWqp0KSSSIAh+Hxy/Co3T6URpaSlyc3PR0dG...
null
[ "iVBORw0KGgoAAAANSUhEUgAAAUkAAACmCAYAAABX731LAAAfbklEQVR4nO3deVzVddr/8deBwyKLIKKogCAigmxFt5GThaU2dt9j5Yw5lZlallsplJWhk1paWhnZFGFqOo6NmjO/tE1zGfHnSt4pi8oBFFBBZJFFdjhw7j9OMC6IAmeF6/l49OARHb7f63jk3eec7+e6vgqNRqNBCHHHFAqFsUsQBmRh7AKEEMKUKY1dQEckJSWxY8cOFi1aZOxSxB2SNy7C3JhlSBYXFxMdHc3q1auNXYpoI4VCIUEpzIpZhWRjYyOrV69m4cK...
0
science
grade-5
animal-adaptations-skins-and-body-coverings
true
true
Fire salamanders have poisonous glands in their brightly colored skin. The bright colors serve as a warning sign that the animal is poisonous. The fire salamander's skin is adapted to ward off predators. Which animal's skin is better adapted as a warning sign to ward off predators?
"iVBORw0KGgoAAAANSUhEUgAAAvgAAAEKCAYAAABnkCFsAAEAAElEQVR4nOydd7xdRbn3vzOr7b736SU5Jye9k4QQCAQQBEQRaWKhWECvvPJyVVAE770WxGsDQcHoVRTpV0Ap0qRKLyGV9N5O77vvVef9YydHAgkEjNcr7/5+Pic5Z6/Zs2bNrGfvZ571m2eEUkp5nkcQBFSoUKFChQoVKlSoUOGfEykluq4jXNdVFee+QoUKFSpUqFChQoV/fqSUyIpzX6FChQoVKlSoUKHCe4MgCJD/6EZUqFChQoUKFSpUqFDhwFFx8CtUqFChQoU...
null
[ "iVBORw0KGgoAAAANSUhEUgAAA88AAAEKCAYAAAAsMWftAAEAAElEQVR4nOy9d7xlVXn//15rl9PP7Xfu9GH6DDMwQxNpgooFEQVRo2giauJXv8aWYEmiBjGaiIKNGEWNIhoVFRBEQUWll6lMYXpvt7dTd1nr98cu55w7d2CQydefyfnwuq+5d5+9115lr8P+PM/neR6htdae56GUookmmmiiiSaaaKKJJpr484SUEtM0EUL8qbvSRBP/IyGbxLmJJppoookmmmiiiSb+/KGUwvO8P3U3mmjifyxkkzg30UQTTTTRRBNNNNHE/ww...
0
math
grade-2
compare-vertices-edges-and-faces
true
false
Which figure has more faces?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAIAAAACACAYAAADDPmHLAAAWpklEQVR4nO2dfVzN5//Hn51uNEm25SbZtyYdxGRZ8Z3I3ba+7lmshmopydw1fGM3Stv3y3y1cjcSuvn+GIbIGL6SGCYkjcjtsenGKqVEpc7n98fRwdakOrd1no+Hh3LO57rex/U6n+u63tfruj56giAIuRVw7QGUVEGlgI5GjIEemOqDbXNoawR6ueWCkFKs7rB0qIPeLcHg6gPZLxZG0NlEpg4djZeSKsgshZwKuPIARMWVshd0jd80MNWXtTXA/SoQVT31go6...
1
math
algebra-2
find-inverse-functions-and-relations
false
true
The graph below shows a function. Is its inverse also a function?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABqTklEQVR4nO39e3Rc5X3v8X9GM7rL1tWWbNmS8U2JjWUwGLCxg4kJUCC0dtIDTZuE0zQtbUl6ctbp+fX019PT5Mfi5Kzm0lCSkrRpIF05Jw0toQEjHBMb7NhgY2HLSIAthC1LlnWXRnO/7t8f8haWL3jG3o9HI71fa2URjTQff7WfPXu+8+jZe7ssy7IEAAAAwBE5mS4AAAAAmE5osAEAAAAH0WADAAAADqLBBgAAABxEgw1gkv/3//6f9u7dO/F1PB7Xo48+qmAwmMG...
[ "yes", "no" ]
null
1
math
grade-3
identify-multiplication-expressions-for-equal-groups
false
true
Which expression describes the model?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAACHCAYAAAAslC4OAAAjxklEQVR4nO3dS3PjVnoG4BfgTbxJFJutS4vqnsV4/tgskizGs4q9nKqss8wqlUqlUllNZZPKZuYX9D8Yu6fHKbslirryIvEOAsiCJgyA4E08AM4B36eqy2LbIj+Drz4enXMAaLZt2yAiIiIiIiH0uAsgIiIiIkoSDrCJiIiIiATiAJuIiIiISCAOsImIiIiIBOIAm4iIiIhIIA6wiYiIiIgESsddQJgsy4JhGM6fyWQCwzBgmiZs24ZlWbAsy/kaAHRdh6Zp0HXd+Tq...
[ "5×4", "4×4" ]
null
1
math
grade-3
parallel-perpendicular-and-intersecting-lines
false
true
Are these lines parallel?
"iVBORw0KGgoAAAANSUhEUgAAAG4AAABuCAYAAADGWyb7AAAGs0lEQVR4nO2df0yUdRzHX4cKd8f9Yqtw5ZTRVm4a6VbJKgtz6w9igs2t0Ja2tBVuiWv9UP+I/kjrr3AV/WEt3CRYWwvwR2tJ/mBMbKupsP6ohXeatYuU+wF3iMj1x91z3SHIgcTDp+/39Yecjx77cK/n+33ez/d5ng+WWCwWQyOOLLML0EwNLS4Fn99rdgkZo8WlULqzhMBAwOwyMkKLS3CgrZ6LvT4OdTabXUpGWHQ4iXPnM276oyEW5RfSte83s8uZED3igEOdzfR...
[ "yes", "no" ]
null
1
math
pre-k
fewer-and-more-compare-in-a-mixed-group
false
true
Are there more squares or circles?
"iVBORw0KGgoAAAANSUhEUgAAAQ4AAAA2CAYAAAA273fRAAAHqklEQVR4nO3dzXMT5x0H8C9UQpLlFZax4zWxyIsgxSrjmIMzxS8HTqA/oPYlB3LhFuqry6RM6ARf2hkn3NoDHHJR+gcoOXEwVjvxwR4PQTRGlEYErRFYRitZK1bBPbhrx9aL99G+Pdv8PkeP9Pj7He/8tF5J+xza2traAiGEMDjsdABCiPvQ4CCEMPNY/Qv+sbYMAHj5qgQAOHqkEwBwrm/Y6l9tKepFfslMHRzZUg5fZ+8iJS3h6+xdXc+5GBnHqHgWFyPjiHT2mxn...
[ " circles", " squares" ]
null
0
math
pre-k
fewer-and-more-compare-by-counting
true
false
Which group has more?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAALLklEQVR4nO3dT2wUdR/H8c/usm1alta0FNRSxNo+VBAPRKAIJVrR4MGTQYlyM4DGQzHeSPSmHAyJHjQInJALQRP/xGAUMBEIFTAosUhtLf8KT6F/lLLdUra78xxWlEesLLa735n9vV+XtUHd73bm3d90hp0NeZ7n9VyTOhPSlZQ06glAjkwKSVMiUn2pNL1ICvWMeN7hQeuxAPcsKpMmdSQyX9xVJM2enKkTQG5cSUntQ9J/r0k/J6Tw4GjmD4gPyL0pkUxrkhR...
0
math
grade-5
compare-decimals-using-grids
false
true
Which decimal is greater than the one shown in this diagram?
"iVBORw0KGgoAAAANSUhEUgAAAJwAAACcCAYAAACKuMJNAAACL0lEQVR4nO3awUkDURhG0TeS1tzYhR0IqUOwA7vIxuLG1UhwpYL38ZJzdgq/zOJmCPht+77vAyIPsx+A+3K6/mE7X2Y9Bzduf30aY1y94cRG4fT9Fy/Pj3/6Q2/vH0veHp+839rOF7c/vLvmOxwpwZESHCnBkRIcKcGREhwpwZESHCnBkRIcKcGREhyp7Vj8mifxn46liXnSQlOfFW/Nk5hKcKQER0pwpARHSnCkBEdKcKQER0pwpARHSnCkBEfKPImEedIwTypuzZO...
[ "0.4", "0.3", "0.34", "0.33" ]
null
0
math
grade-8
describe-a-sequence-of-transformations
false
true
What combination of transformations is shown below?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAEyCAYAAADA5Kd8AAAajklEQVR4nO3de5zWZZ0+8AuQQyhQpqIIkrp5ylIcTcKUcvdnSZbrKQ95To0fh8Q8pq62pqbmMYF1Q9MkzdZTFGptVosHxMVHxTS1EiJEQsriKIeY2T/Gmddiygxwzzw7M+/3XzwP3+e+PvOHcvHlfu5vp7q6uroAAABFdK72AAAA0J6sUbDnzZvX6gN0lMxq5cpsX5nVyu0omQBQQqf/vUWkUqlUcxaANdTU1FR7BABYZxu9/Y3W/gOtUql0iMxq5cpsX5nVyq1WJgC...
[ "rotation, then translation", "rotation, then reflection", "reflection, then translation", "reflection, then rotation" ]
null
3
science
grade-7
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?
"iVBORw0KGgoAAAANSUhEUgAAAbAAAAEVCAYAAACBn7B3AACAB0lEQVR4nO19eXwcxZn2Uz23NDM6LF+yZFscvm0gLL6AJJw24ITL2Al8bCAhZAmBgEmADUk4EkhYgm1IFrLcYUNCbBNgE4jNTViwuVmCbQjgU74PaTQazd31/dFd1dU9PaMZaUbWtOv5/WzNVFfX0VNPv8/7VnU1oZRSSEhISEhIVBmUA90ACQkJCQmJvkAaMAkJCQmJqoQ0YBISEhISVQlpwCQkJCQkqhLSgElISEhIVCWkAZOQkJCQqEpIAyYhISEhUZWQBkxCQkJ...
[ "Solution B", "Solution A", "neither; their concentrations are the same" ]
null
1
math
grade-2
purchases-do-you-have-enough-money-up-to-1-dollar
false
true
A blueberry muffin costs 84 cents. Do you have enough money to buy it?
"iVBORw0KGgoAAAANSUhEUgAAAvgAAADECAYAAADqBVUcAADEIElEQVR4nOzdd5wU9f348dfMbLut13s/ynG0o4MUBbFgwV5jiSbR/NREY8w3GmNMjJpiosYUTewaS2yoYEEFFVEEAekcBwfXe7/bvjOf3x97u3ACeiiWmM/z8bgH3O7s7MxnZvfe85n35/1RhBACSZIkSZIkSZK+FdSvewMkSZIkSZIkSTp8ZIAvSZIkSZIkSd8ihz3A7w4Lipb2MmF5H91hmf0jSZIkSZIkSV+lQwrwX2wK85uKwKcG7u+0R6j2GWzo0blkne8Lb6A...
[ "yes", "no" ]
null
1
math
grade-4
compare-fractions-with-like-numerators-or-denominators-using-models
false
true
Which fraction is greater?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAACpCAYAAAARMkpIAAA4iklEQVR4nO3df1xUdb4/8BdOFqk5uBVppjNoXkswwX5YCg1k926aBLqamBaYeh0zF6wU/JGg+Qu1gk0U9pJC6RWoDRXS7m4JCllkCitYtpvOjKUW322ZUQhTcL5/jOc4qMAMnDNnYF7Pv1aYOefzGd/76O1n3uf99rJarVYQEREREZEkuii9ACIiIiKizoQJNhERERGRhJhgExERERFJiAk2EREREZGEmGDbaWxsRGJiIu677z7ccccdePrpp1FeXq70sqgDslqt2Lh...
[ "9/12", "6/12" ]
null
0
math
grade-5
identify-trapezoids
false
true
Is this quadrilateral a trapezoid?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAEOCAYAAACzXGCqAAAn0klEQVR4nO3dd5SU5d3/8fcsy7KuSBFRAQuKHRUbGopgQ7FgwSQSjSWGJxoTjYk1MYkaYyKWRM3z+IuRJPYSe1TUYCyIoCIoIlZQLJSISBEXWJad3x83m2sWUMrOzDXl/Tonx+91Dcz9eXzwnA+z91x3Kp1Op5EkSZKUFRWxA0iSJEmlxIItSZIkZZEFW5IkScoiC7YkSZKURRZsSZIkKYss2JIkSVIWWbAlSZKkLLJga82NuxP+PBg+eDl2EkmSpIKV8kEzWq3JI+B...
[ "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
[ "iVBORw0KGgoAAAANSUhEUgAAAKQAAAD+CAYAAAC0oK7QAAAEC0lEQVR4nO3cMYtcVRiA4W92N1vEZCUgioWFRbRIG4j5AZaWdv48K+209AdEgq1FjGBhYUQhsJssZM1yLYYFxU737ry4z9PMXC589wzzcrjV2SzLsjw7m/nxdObkfOb1MnBlDjYzt/dn7t6ceedwZvPs1bI8Pt71smDmwdHMwdPT7cW7hzMfvrGtFa7KyfnMk5czv5zN/HA6s3f8entDjOzC7f1tezMzL85n9s7/cgN24aK9P5aZvd0uBf5OkKQIkhRBkiJIUgR...
0
math
kindergarten
count-corners
true
false
Which shape has 5 corners?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAFyUlEQVR4nO3dy25TVxjF8eWEZEChnVSt+gBtH4Gn6HuSKFKkZpABysQKBjwgsixhUWIpMigJscE4dk7iy/Hu4NRqC4Hc9l77ctZvQlGo8eCvAPmWcirGGHM8AfYzYJgDMwORO7tXAR4uA7/eB35eBSrHY2Pqp77flqTs0ffAvTdZ8ZNfVoHfvysqFLmrYQ68PgOOJsBfGbB0Ois+oMjEpofLRVMAMMqBpfw/HxCxadHU1ABLft+KlIVCEwqFJhQKTSgUmlAoNKF...
1
math
calculus
domain-and-range
false
true
What is the range of this function?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AABkxUlEQVR4nO39e3Qc9YHn/X9a3a371ZIt2QLJGIMTG8tgMMTG5jIQICEhsRPGJE8uzDCbIRuSbJ6z2cPMQ7JzYZk8m0nmF5ZksuxmA8wvs5mwATLYCMfEBjt2wFhg2Za5GGHrYluXtqRWt/pS1V31/GGksWzZluz6qtXS+3UOh6O26tNfVXV/69PV1dU+13VdAQAAAPBETqYHAAAAAEwnFGwAAADAQxRsAAAAwEMUbACj1NbWaufOnSM/Hzp0SLNnz1ZbW1sGRwUAQPa...
[ "$\\{y \\mid y \\geq 1\\}$", "$\\{y \\mid y \\geq 0\\}$", "all real numbers", "$\\{y \\mid y>0\\}$" ]
null
1
math
pre-k
represent-numbers-up-to-20
true
false
Which picture shows 3 triangles?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAFIAAABcCAYAAAD9JuLrAAAEz0lEQVR4nO2dX0/bVhiHf7FjN4mDE8iygCcigVS22+2mV/sE0z5WPwDcw31TaZM2Qe5o1UpQ9SLhru0yKVw1mbYVQ0LkZSbehXO8VPxxgPf4uNv7SAhDDvbLo5f4Z5+DnAmCIOiPgV9HwOAC8AMwc5DNAAs68LAA1Ewg0/8rCF6fqS7r0+aRDWQ7o/CLFRP40gotM/EMLoB350BvDPwyArQzP3yBJd6OBT10BgDDC0C7mHmBuR3C2d8BoKkt5b8DiySCRRLBIol...
2
math
grade-8
quadrants-and-axes
false
true
Which point is in Quadrant II?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAH8CAYAAADrBti4AAA9fUlEQVR4nO3de3RUZYL3+19VioQk5AaBXCDEG6BAuIvcgtJID4qNV45ytNXR8R09q492L98+y8P0eGbshtdZc5xWtF3TdPeS6VenPfLiOE2DgyJCDCIGBAIEGlDDJSSEkFsllapKXc4fmHQCCST67OzayfezFmt17ars/Hy6sutXTz27tisajUYFAAAAwAi33QEAAACA/oSCDQAAABhEwQYAAAAMomADA9z8+fP13nvvtd/+4x//qBtuuEGRSMS+UAAAOBgFGxjgJk2...
[ "R", "S", "Q", "P" ]
null
3
math
grade-1
match-analog-and-digital-clocks
true
true
Look at the analog clock: Which digital clock shows the same time?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABWRUlEQVR4nO3deViUVfsH8C+i7IxaLikoiLkwlruA9oqVoSW4JO5bLrlVhuZWv9QStHJLUXsVcNdcEswNSygzTGUxc3kd0hQYHSRFAwaBGUT9/UGMILM8szEs3891dcUw5znPHTEX95y5z32snjx58gRERERERGQStSwdABERERFRdcIEm4iIiIjIhJhgExERERGZEBNsIiIiIiITYoJNRERERGRCtS0dAFmeQqFAQUEBCvLzUVCgQEFBPgoKCmBduzYc7O1hb28Pewc...
null
[ "iVBORw0KGgoAAAANSUhEUgAAA5oAAAEJCAYAAAD1mFhPAABn7klEQVR4nO3deViUVfsH8C+i7KCUG4KCaClYihvgRouhpqgl7pq5b2VqbvVLLcEWtxTNVNyX1BLMvYQWI1GWNJfXIRc2HUVcEodtBhF+fxAj68zzzMLMwPdzXe8lw5znPLfj0Ds39zn3MSssLCwEERERERHphJmZmaFDIDK4WoYOgIiIiIiIiKoXJppERERERESkU0w0iYiIiIiISKeYaBIREREREZFOMdEkIiIiIiIinapt6ADI8ORyOXJzc5Gbk4PcXDlyc3O...
0
science
grade-5
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.
"iVBORw0KGgoAAAANSUhEUgAAAhAAAACBCAYAAACRpYNGAAARaUlEQVR4nO3df1TVdZ7H8de9F+EKnBRFTMR0jiBlK7OboTF2Gge11KkNI7PU7PeGiWlrU9nkbHvMc8p+iDqlZ8bVMlvph2I/tD322xVTxJRKs8IVEUE0AhyFO8K9d/9gvTuMP+AD994vF5+PczjH+73fH+/vx+/nzYv70+b1er0CAAAwYLe6AAAAEHoIEEGSkZEhm83W7KdXr14aNWqUtmzZYrSvb7/9VjabTVu3bjWuw+1266mnnpLdbldOTo7x9gD8ryP0B7fbrZd...
[ "The magnitude of the magnetic force is greater in Pair 2.", "The magnitude of the magnetic force is greater in Pair 1.", "The magnitude of the magnetic force is the same in both pairs." ]
null
1
math
grade-6
changes-in-mean-median-mode-and-range
false
true
Look at this set of 10 numbers: How would the mode change if the number 7 replaced the number 5 in the set?
"iVBORw0KGgoAAAANSUhEUgAAAS8AAAAkCAYAAADYbryvAAAHTklEQVR4nO3ce3BU5RnH8e+e3WRJWEg0F0IaMDFyCRAQCgohEoIYhCkgCkrFQYHiNAUslA7qxA7QWmXEqoB1KoPOIMqlCHJzuJRLoOVSCJIIJZEMxNgUkpBAAslu9nr6BybjGgqlPRc383z+22cn53fmnWeevLvnnLWoqqoCeAI+nN4m/GoAFSGE+OGwAFaLQmRYO8IV242aqqpqo8+Ny+c29+yEEOK/EGmzE2mzY/MG/DK4hBAhw+lzE6ZYUZwyuIQQIcbp86D4An6...
[ "no change", "increase", "decrease" ]
null
0
math
grade-4
scalene-isosceles-and-equilateral-triangles
false
true
Is this triangle equilateral?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAC/CAYAAADEvavOAAAniUlEQVR4nO3de1jUdb4H8Pdwv4vcDMXAQFQUEy+gouIlBUUUlUsq6G+onWgrJTXNytt2Ontay8d167S1dNcVIbctW8sTZzkqtgZC4uCgJGFQTTW6YwyOjuPMnD+s2W1Xy8vMfGeG9+t5eh6frzPze2v+8fbj5/cbmcVisYCIiIiIiGzCQ3QAIiIiIiJ3woLtoh555BH07dsXf/vb30RHISIiIqJ/IuOKiOs5fPgwxo0bBwCIiIhAfX094uLixIYiIiIiIgCcYLukhx5...
[ "yes", "no" ]
null
1
math
kindergarten
fewer-more-and-same
false
true
Are there the same number of fish bowls and goldfish?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAACgCAYAAAA2PRuAAAAotUlEQVR4nO3deZRc532f+ecutVdXV+/obgDd2ImFAMEFJEVRpCw6Y1OJZUuyPZZkW5Z07IwzciLJmcz4RDNKMj7JxJYmi5zYEzuSKdkzkSxSksVIjiORFCmKBEkABLETS6PR+17Vtd/lnT8a4CJi72oQXf39nINDEF391n1udZ3zw8Wtey1jjEFEREREROrCfrs3QERERESkkWjAFhERERGpIw3YIiIiIiJ1pAFbRERERKSONGCLiIiIiNSRBmwRERERkTrSgC0iIiI...
[ "yes", "no" ]
null
1
math
grade-8
classify-quadrilaterals
false
true
What name best describes this shape?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAEACAYAAACJVgHaAAAs6ElEQVR4nO3de3TU9Z3/8ddMrpBAZjSYmSQuCS6yAlIQWq5hAhUvpbUBlXjZltjz2+5v2+6KZ9vds1W3uK1uu/ZYPG73191227A9FgPIRaRYpORGuFiR/CBAkWrCDzIXCMyEEMh9fn98SSJyy2WS71yej3+EL5mZl0c95zVfv+/3xxIMBoMCAAAAEBJWswMAAAAA0YSCDQAAAIQQBRsAAAAIIQo2AAAAEEIUbAAAACCEKNgAAABACFGwAQAAgBCiYAMAAAAhFG92AKC...
[ "square", "rectangle", "rhombus", "quadrilateral" ]
null
0
math
grade-3
fractions-of-a-group-denominators-2-3-4-6-8
false
true
What fraction of the shapes are rectangles?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAABKCAYAAACB4iNkAAAGFElEQVR4nO3dT26VVRjH8aeUImiCQDQmmjQMgMhAhuIE2QELMGELjhy4AQfGdbgH4xacMZHoxGhIJGAoGP6ES3sd1JZWWnnoe857zr3v5zNiRE++E57cCz9W5vP5PAAAgCKOtX4AAAAsEwc2AAAU5MAGAICCHNgAAFDQ8dYPABjD99/djz9+fd76GbvWL52IL756r/UzXqETwHA+wQYmoaejMSLi91/6es8OnQCG8wk2MCkfX3m/9RPi9q17rZ/wWjoBHN2gA/vxt5/...
[ "1/8", "2/6", "7/8", "4/8" ]
null
1
science
grade-7
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 sizes.
"iVBORw0KGgoAAAANSUhEUgAAAkAAAACqCAYAAABF2vD7AAAo5UlEQVR4nO3dd3xUdb7/8dfUBBKIaUgvJiC9KMWISlNEVrzub8Xu6par2Neyiquu61XuunvXAojgtXBVwIKguyJrQYFIB6WI0lsgCTUklNSZOb8/BiJIm0nOmTOTeT8fjzwgw8z3+xlgPvmc7/kWh2EYBiIiIiJxxGl3ACIiIiKRpgJIALj66qtxOBzHfWVmZjJo0CByc3PDamv16tU4HA7mzZsXdhx+v58nnngCp9PJSy+9FPbrRST2REP+8fv9vPDCC3Tq1ImkpCT...
[ "The magnitude of the magnetic force is the same in both pairs.", "The magnitude of the magnetic force is greater in Pair 2.", "The magnitude of the magnetic force is greater in Pair 1." ]
null
2
math
grade-2
cubes
true
false
Which shape is a cube?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAATUElEQVR4nO2da4xc1X3Af+fcmZ192t5dbLNgx3GN7fII2zjYYFMecVuSkqBCA2pktQ5VSqqK9gOVoqopqaqWNqmUCIgUKapRK9IqQoLwiOXGpZFJQqmNbaAmPGQMcfx+7cPrfXke95x+uDOzM7uzuzNn7tzH7Pl92dl7z+N/d/9z7vk/zjlCa63PZuDDCRh1IaexWCJHQkCXA2vbYXkLiLNprfdfClssi6V6bl4EiSMT3i99LbC+w9NqiyVqjLpweBzOZOCDCZC...
0
math
grade-3
compare-fractions-using-models
false
true
"iVBORw0KGgoAAAANSUhEUgAAAtUAAAC5CAYAAADnGsNjAAAv+ElEQVR4nO3dd3RU1d7G8e+E9EYSUkgILYiGgNIh9C5VVIrSFAEFLAjYwA4q6iteC17FBooggiB6KQICItJbQq/SQw0hJBDIkGT2+0fMSExIYTBBeD5rsa5z5ux9fvvkXHhmZ58zFmOMQURERERErppTcRcgIiIiIvJvp1AtIiIiIuIghWoREREREQcpVIuIiIiIOEihWkRERETEQQrVIiIiIiIOUqgWEREREXGQQrWIiIiIiIMUqkVEREREHKRQLSIiIiLiIIVqERE...
[ "<", "=", ">" ]
null
2
math
grade-2
compare-clocks
false
true
The clocks show two things Britney did Sunday morning: Which did Britney do second?
"iVBORw0KGgoAAAANSUhEUgAAAdEAAACiCAYAAAAeAvdAAAA5e0lEQVR4nO3deVxU9f7H8dcM2wADA4IsLoAKWqYIpqUJaKWZ5pp6Nc2lXO7tqkl1Ky1t08ysX2rUrXtT01bXLJdcslK0svTKolYCKpIKg4KMDDvM+f0xOTmCAiMyoJ/n48EjOHOWDxNvP+ec+Z5zVIqiKIhGq6i8mKM5x0nLPUlqbjqpuenoC85hKMnHWFqAsbSQ88UG1Co13hodWmdXtM7u6Fw8CdT6EdYkiNAmrQhtEkyodzCujhp7/0pCNHqSy5uHSppo41JYXsy...
[ "got dressed", "ate breakfast" ]
null
0
math
algebra-1
special-right-triangles
false
true
Find z.
"iVBORw0KGgoAAAANSUhEUgAAAtgAAACJCAYAAAAWnk9+AAAXvUlEQVR4nO3de3DU9b3G8WdvySaEXI6RcFOCXIVSAYXEHo+EYpVaqYggQbHl0iraKtTLIWXGYx3nMPTYDgiKFqVgBzRt4l2OgEclKGrABgEZoIRrIpgCZRMSstnb7/yxJiQQYDf8sptk36+ZDJPfXvLd8M+z3zz7/VgMwzAEAAAAwBTWaC8AAAAA6EgI2AAAAICJCNgAAACAiQjYAAAAgIkI2AAAAICJCNgAAACAiQjYAAAAgIkI2AAAAICJ7NFeAFqfYUilFX5t2e/...
[ "$2 \\sqrt{3}$ centimeters", "4 centimeters", "$\\sqrt{2}$ centimeters", "2 centimeters" ]
null
3
math
grade-2
match-analog-and-digital-clocks
true
true
Look at the analog clock: Which digital clock shows the same time?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABOLElEQVR4nO3de3RU9b0//PeePbdcZpIQrkm4q5BgAbGSqBX7VINPxbqeY7BHqm0PepR6fseiq2LXelroEuxaj0KXoK5VL0eo1YN6BM9ZVmol2tMTD5KgRaBlIgoBzIQQQ0iyc5vLnr2fP4YMGTKX79xnkvdrLReZ2d+Z+TaZ3fnMd3++n4+k67oOIiIiIiJKCkOmJ0BERERENJYwwCYiIiIiSiIG2EREREREScQAm4iIiIgoiRhgExERERElkTHTE6As4NMBnw79wr+...
null
[ "iVBORw0KGgoAAAANSUhEUgAAA5oAAAEJCAYAAAD1mFhPAABeq0lEQVR4nO3de3RU9b03/veePbckk0nCRQIJdxQSLIlYSRTBntqA9fY8R7CVarVg1VrrwZ4KnvVroatg13pEWsHanoqPoLVVWwnnrFpaSbRPTyqSoEWgMhFNAsgEEgMk2Zkkc93798eQIZeZzN5zn8n7tRYrc/nuPV/CjO7PfD7fz1dQFEUBERERERHFhCAIyZ4CUdLpkj0BIiIiIiIiyiwMNImIiIiIiCimGGgSERERERFRTDHQJCIiIiIiophioElEREREREQ...
1
math
grade-7
bases-of-three-dimensional-figures
false
true
Look at this figure: What is the shape of its base?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAADHCAYAAAAjzCRiAABNuUlEQVR4nO29eYBdZX3//3qe55w7M0kmM5lMEgKBRBBZFZFvAZVNUURcoIpSl1ostLW1Vqz9Fq3VLrZ1aWvrUqtf+X3Vtir91rrvthQURFREIpvInrAJgSyQkOWe5/fHs5zn3pmEbTIzie+Xncy955x77j1n+sf7vnk/74/x3nuEEEIIIYQQU4Kd6Q8ghBBCCCHE7sQvlcD+3iW3cOmlN7Dv8mNm+qMIIYQQQojdFPPLFBF5xlFncukPPgnAwQedwtXXfHWGP5EQQgg...
[ "square", "circle", "octagon", "triangle" ]
null
1
science
grade-5
identify-ecosystems
true
false
Select the tropical rain forest ecosystem. This ecosystem has: long, cold winters and short, cool summers many evergreen trees soil that is poor in nutrients This ecosystem has: year-round rain and warm temperatures soil that is poor in nutrients many different types of organisms This ecosystem has: warm summers and wa...
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAp8AAACtCAYAAAD2xRSHAAEAAElEQVR4nOz9d7Rkd3nmi392rF05nTo5dPfp0zm3WmplCQkECBtjkrkGzGAGh7GNPU7M9Sz7esbL8FsMM75g+5qBMTZgkoVBmCQhqRU7SGp1UOc+p0/OleOuHX9/7Krd5zTC2DO2sU09a5W60t6161u1dZ563vd5XuGFkutuDUNUooMOOuiggw466KCDDv5JULHhcg2EsuW6HeLZQQcddNBBBx100ME/NSo2CK7ruj/sA+mggw466KCDDjro4EcD8tobu+96Nf0...
2
math
grade-1
flip-turn-and-slide
false
true
What has been done to this letter?
"iVBORw0KGgoAAAANSUhEUgAAAPoAAABkCAYAAACvgC0OAAAFlklEQVR4nO3dwWsUZxjH8V/MuptkTdjYqMFQrYoUtSU1UltEcaQIHrT00EOP2dK7l0Lppaz+Cz2XzaUXC+IhYEGIiOSioFtqoNRD9aBYU8iSGKNr0reHRkGyzsyaN5nZeb4f8CJPnvd15v2RMbv7pOP48eMuCAL5cO3aNTnnRL+373f16lUvvZIWBEGqr7O1frkgCFSpVLw0PHfunJxz9FtFv6zgXKWr3wYvnQCkGkEHDCDogAEEHTCAoAMGEHTAAIIOGEDQAQMIOmA...
[ "flip", "slide", "turn" ]
null
0
math
pre-k
triangles
true
false
Which shape is a triangle?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAJoAAACJCAYAAADUvSEiAAACY0lEQVR4nO3VTW4cVRSA0dvtn0FIQGIAYgEhKyDZD2vIMlhDFmRWYJI5ZpKBnViKcasYlCIxd+lr1JwzqqcnXd3Bp3q7ZVmWm4eZD/czd4eZx2Xgyc53My/OZl4+m/nxcmZ382VZrm6PvRan7M23M+fv79fDT5czr75ZK4SnujvMXH+e+fNh5o/7mf3t43ohMrb04mxtambm02Fmf/jXBWzpa1N/LzP7467C/4XQSAiNhNBICI2E0EgIjYTQSAiNhNBICI2E0Eg...
2
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/t0lAAAiZklEQVR4nO3df3DV1Z038A9IbYgoWVikCLRhY8A6G3LZ0BZwxgTbcXSBGrqP2nlEUVcL7nSraKvuzo5mrXZZ2xWs9Qdup1q1W3dkBVfH2roLoa4C1qyX0FoaDUQTBGzRKD9iqZDnD9s8UggC95v7zU1er5nOcO9J7nlH7dx3DueeM6Czs7MzAACARAxMOwAAAPQlCjYAACRIwQYAgAQp2AAAkCAFGwAAEqRgAwBAghRsAABIUN4K9rvvvhvvvvtuvqYDAIBU5K1gZ7P...
[ "negative trend", "positive trend", "no trend" ]
null
2
math
algebra-1
identify-linear-and-exponential-functions-from-tables
false
true
Is this function linear or exponential?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAEqCAYAAAAvYSeKAAAWLElEQVR4nO3de7DVdcHv8Y+w2YBBbEVuIsRFB4JC8ZIpCTreztRY3pMMAhXUmUwnykujjDkH80KOoaKjA2mGgyLKHBlKlEliBjGeKTUfRUs38igeERC5CIIbzh9OnAgTyO9msTav14wz+lub3/fjf2/W/Nba+yz63pItqQIH3rR/ll69stIzdlqfKd0qPQEAgApoVukBAADQlAhsAAAoSGADAEBBAhsAAAoS2AAAUJDABgCAggQ2AAAUJLABAKAggQ0AAAUJbAAAKEh...
[ "exponential", "linear" ]
null
0
math
pre-k
fewer-more-and-same
false
true
Are there more bugs than leaves?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAEECAYAAAASx0PMAABl1klEQVR4nO3dd7hdV33n//fap/d7bu9VV73YcpFsuXewMSVA6BAIaUOSmUkmk0kyvyQzIQlpJIFkhmRI6KYZiLGNwcYdI1dZvd7ey+m97L1+fxzpSldd8rWurvR98Qisc/Y5e539eXjW12uvvZbSWmuEEEIIIYQQC8JY7AYIIYQQQghxKZECWwghhBBCiAUkBbYQQgghhBALSApsIYQQQgghFpAU2EIIIYQQQiwgKbCFEEIIIYRYQFJgCyGEEEIIsYCkwBZCCCGEEGI...
[ "yes", "no" ]
null
0
science
grade-8
use-punnett-squares-to-calculate-ratios-of-offspring-types
false
true
In a group of cockatiels, some individuals have bright orange cheeks and others have pale orange cheeks. In this group, the gene for the cheek color trait has two alleles. The allele for pale orange cheeks (r) is recessive to the allele for bright orange cheeks (R). This Punnett square shows a cross between two cockati...
"iVBORw0KGgoAAAANSUhEUgAAAvgAAAD6CAYAAADUdTPBAAASMUlEQVR4nO3da2zd9X3H8c/xLYmdxHFqp2mubNykIUaaWmO0RRVNiwoUsWkKtIom0FoedFqnCSGmdpMylkpcnrTiAVSoQmUqbYNa0KqVwSrWalq30TktMFahLMxcUoeVOA5JfI3tsweEY9MEkghyzvEvr9ejnH+Ocr75HUV65+/f//+vVKvVagAAgCK0NHoAAADgvSPwAQCgIAIfAAAKIvABAKAgAh8AAAoi8AEAoCACHwAACiLwAQCgIAIfAAAKIvABAKAgbY0egLf...
[ "0:4", "3:1", "2:2", "1:3" ]
null
2
math
grade-1
compare-money-amounts
true
false
Which is more?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAWwAAACYCAYAAADA69MCAACNAklEQVR4nOy9d5gcZ5X2/auqzrlnenKOmhmNwijn4CA5ZxwwmGgTDGYxmLBeYFlgecm8vAteMOyCvWCCbdmWs4IlWTmH0Wg0OYee0NM5VtX3R6trrWWXlYwF6Lv6vi5dSra66umq85znPve5j6CqqjqWgK4IBGVIqWSRRRZZZPE3AJ0AdgnqLFBgAGEsrqoHA3/ty8oiiyyyyOJPYakDdJ2R9G+KDDDLmo7mWWSRRRZZ/PURlOFsGEYT0BEBMZBK/0U2WGeRRRZ...
1
math
pre-k
count-on-ten-frames-up-to-3
false
true
How many stars are on the frame?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAACQCAYAAAAyRxwtAAAHuklEQVR4nO3dPW9b5xkG4OeEVER9GLZkygoK2GuTbnZGezEQpGPQORnrNV6TNV67dE7X9kdk8FBkrKwx7WovBuqPBohIKhJxOrgsbEuWJfEhD3Xe65psQaTee7vx6tZh9fDpQR0AxN3tbtNHAKAFPmj6AAAA0CYKNgAAJFKwAQAg0ZHB4aebnSbO0ZidF+M3/i+//CWRf/z+bwKAM3KDDQAAiRRsAABIpGADAEAiBRsAABIp2AAAkEjBBgCARAo2AAAkWoiCXe/VTR+...
[ "3", "2", "1" ]
null
0
math
grade-3
acute-obtuse-and-right-triangles
false
true
What kind of triangle is this?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAACwCAYAAAA16xkbAAAfrElEQVR4nO3deVzUdeLH8fcwAUFNCoaB5awWKOKWVBaiG7Vt1JqBFpodu91bbYftSm2lP7NSu9TMbRPco/tYa8b7CvNKw4vMIwwRT1TwWBBFcIBhfn+Yk+12CHxnvgy8nn/J98t8Pm/+e/t5fObzsXg8Ho8AAAAAGCLI7AAAAABAS0LBBgAAAAxEwQYAAAAMRMEGAAAADETBBgAAAAxEwQYAAAAMRMEGAAAADETBBgAAAAxEwQYAAAAMRMEGAAAADETBBgAAAAxEwcb...
[ "acute", "right", "obtuse" ]
null
1
math
grade-1
names-and-values-of-all-coins
false
true
Which coin is this?
"iVBORw0KGgoAAAANSUhEUgAAAMMAAADDCAYAAAA/f6WqAABy6UlEQVR4nO29fUxUd9o3/uk6geABQ+p0jCV3Zk5f+GM60KIi9SUp8LTYLIxmX1rstmmU3K3eKeKuj8lN4+6v8dk15U6MbdXmtts7aIxtoe3uRoFNtX0AE61FVFoY5w/aembyBI3HoSHCgYyh6e+PM9c13/Odc2YGBWu7XokRmJkz5+V7fa+3z/W57vnhhx9wV+7KXQF+8WOfwF25K3eK3FWGu3JXEnJXGe7KXUmI68c+gZ+zfP/99zcdkE1OTmJiYpx/z88vwPz58/n...
[ "quarter", "dollar coin", "penny", "dime" ]
null
0
math
grade-7
cross-sections-of-three-dimensional-figures
true
true
Identify the cross section of the sphere. Assume objects are perpendicular if they appear so.
"iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAAAyBklEQVR4nO29eZRkV33n+bnLWyJyq31RlaTSYu2CwoAMA8ZFL8cGGygPtMczPd0WZuw500030plh2uMeJlPN6T42bo5gxudM27gtezzTtkGM1HAOY7DVCGxsgZCNWNwCoSpVqfYlKyszI+Itd5k/7osls7JStWRVbu+Tf0RkLBn3vXzf+C33d38Xampqampqampqampqampqampqampqampqampqampqampqampqampqampqampqampqampqampqampqampqampqamo...
null
[ "iVBORw0KGgoAAAANSUhEUgAAAUQAAADICAYAAACQ75jRAABCa0lEQVR4nO29e5RcV33n+9ln7/Oofkqy/NDD8kOObZAMJjYODDIRMxNmwMF2bjLgZIbEhJtgJ85gr3sT5sLkqj2ZeMVkskwmMJgkMw43c4Mh5AJm4ZmYkIAfGcB2BmOZAYxkW7Il62Gp1Y+q89j77PvHPqeqWi+rW13d1a390dKq7uqqOo869a3fb/9eAo/HczLsYu+AZ+EIFnsHPB6Pp1/wgujxeDwVXhA9Ho+nwguix+PxVHhB9Hg8ngoviB6Px1PhBdHj8Xg...
3
math
grade-2
equal-sides
true
false
Which shape has 4 equal sides?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAFmklEQVR4nO3dTU8bVxSH8f+M8QA2aSqkpEIqC5qkyQeIms/fbdQPEApNF1SCthJRATt+YTxdOFYRAoPn3nvuifv8dhGxPYtHPp7XWzRN05xNpOOhdFlL142AYBuF9KQjvepJ31VScTZumvcXuTcL6+zdN9LG0XD+j71Ket2fVwiEuqylw4F0OpF+HUrlxfX8D0SGmJ505k1J0lUtlfWNPwAxLZqaNlKZd1Pwf0FoMEFoMEFoMEFoMEFoMEFoMEFoMEFoMEFoMEF...
2
math
grade-4
is-it-a-polygon
false
true
Is this a polygon?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAD6CAYAAACbKDARAAAPqUlEQVR4nO3dy4+W12HH8fO+DMSovqQkspU66qJddFXjRMmqig2RYi6uqqy7SLg4i1T5a9oq3QBDl92iOIZEMpBVN7ENlbpupdqVrdguNioUM+/TxXDgmWEu7+W5nMvnsxvESAeNRvrx1XmfZ9I0TRMAAIBOTMc+AAAAlMTABgCADhnYAADQIQMbAAA6ZGADAECHDGwAAOiQgQ0AAB0ysAEAoEMGdmX+9h+/CL+4fHfsYwAAFMvArsiV9x6E//zDLLz/Hw/D2+8/GPs...
[ "yes", "no" ]
null
1
math
kindergarten
tall-and-short
true
false
Which streetlight is shorter?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAHIAAADPCAYAAAApiYXWAAAJR0lEQVR4nO3dTWwU5x3H8d/sLl6K8RCpvNRl+xKpbepVlVZJJTi0JBc4JKKq6j00SpUmHBJFKOADlEqufUiaAzUHQw5pcoiKVCeptO4BmhxMldICle20Uk/rppBKEcOLwSEway94Z+Z5elg2NY73Zd52vf/8PsgyZndmHvHlmZ2ZHRtDa62vloELJaDoAa4GdYCUAfQkgW+uA7Z0AcbVRa2n7XYPi8LYZgKp86XKF71dwAPdlcq0+hU94IMF4EoZ+E8JSNhu5QF...
1
math
algebra-1
linear-functions-over-unit-intervals
false
true
How does f(t) change over the interval from t= – 5 to t= – 4?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAABxBklEQVR4nO3deXgU95kv+m/1ol1CQgIJBBI7RiAJY8BhERIBG2xsHHA8ODmJxxnPxHjLPbl3kseTyeROcnx9fe4kkxMPYOyZTGznZJ5MmGAngAXGRltEjIwMAolNCNACaGmpJfVe3V11/2haSGzqhvqpuqXv53l4VGp1f/VS1V399qvqaklVVRVERERERKQJg94FEBERERGNJmywiYiIiIg0xAabiIiIiEhDbLCJaIhDhw5h2rRp2LBhAwDg8ccfxwcffAAAuHr1Kg4...
[ "f(t) decreases by a factor of 2", "f(t) increases by a factor of 2", "f(t) increases by 2", "f(t) decreases by 2" ]
null
3
math
pre-k
select-solid-shapes
true
false
Which shape is a sphere?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAPrUlEQVR4nO3dW2xbdx0H8K9dO7ZPHDtxbk2bNG6ba9OupduoNo0hKAgJNomhiXER2niYECAuQggE0p5A4qJNIB4oaDwMgZj2wgYdo12bdRtps/Wepbe06Zo4SRPnZie2YztxZx7O+fsSO/Gxfezjc/6/z8sc27H/U7/993/+l98xxOPx+MwqMLoCBO4BsTgIqTgmA1CzBegUgOYqwDATjcfPLqvdLELkO+QATLdWxB9aqoDuajHVhFSawD1gJARMrwI3VwDjckx...
2
math
grade-1
identify-halves-thirds-and-fourths
true
false
Which figure shows fourths?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAIIAAAB8CAYAAAClm2iUAAA2H0lEQVR4nO29eXxcZ33v/z7L7NJotO+7bMmyFkuWvDuJs9hJSEI2EhIIpC1cQgsFCr20vbdl6S30V/iVQoFALy0E0kCAkIQkxCGb7Xi3LFurte+bpdEymn3mLPePkWXLkhxHi21af14vvfSamfM85znnfM7zfPdH0HVdHwlBhw/cKig61/HfALIA0RKssUKyEYSRoK4fn77aw7qOq4nNdpDbfZEPqUYotEVYch3/9eFWodULwyFo84E4rUR+uE6C/16IliLPHMC...
0
math
kindergarten
cubes
true
false
Which shape is a cube?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAXZUlEQVR4nO2dX2wTV77Hv2n+OcGxzdrOH7BJqGxDdkGZBpa9RNBSgnSblmqh0obtviR0H/b2StvSZXUfgq4apAsrXaksdFfq9qGQPC2bSrfpJht6dQmbFghXWUgcgTbEziUOk2yC/yj+V8fOH+U+TM4kjp0SyIxnxj6fl4TxMD7x+fjM7/zm/MlaXFxcnJoFRiJAaAGYXwSFIjtysoCibMBaCJTkAVlTscXFvqDUxaJQ1s+PNECOM8L9oywP2LGJs5pCkRuhBWD...
1
math
calculus
determine-one-sided-continuity-using-graphs
false
true
Is f(x) continuous from the left at x=6?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAACEB0lEQVR4nO3de3xU9Z0//teZWzK5X0kCmHATFEjCxaggKBZFq1UL1mpbtXbVXbtrbbtru/12tb9tdd3uWtutVeu2db1tu13desdIQRBoUC4RAgkIIUBICLnPTOZ+rr8/JhMIEMgk58PMJK/n49GHZTLnnU/OmXPO63zmcz5HMgzDABERERERmcIS7wYQEREREY0lDNhERERERCZiwCYiIiIiMhEDNhENsn79ekyZMgU33ngjAOCmm27Cm2++ecb3KoqCyy+/HJ988sn...
[ "yes", "no" ]
null
1
math
algebra-1
special-right-triangles
false
true
Find m.
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAC+CAYAAAAP4XhrAAAZ/ElEQVR4nO3dfXSU1YHH8d9MEhKYQIJSCLVIaatlUUC7vuCuJcQqWldW0VRCbbeAelDPHmEVF+SwItYT0S4vrVKVwIJVIUAQqIIEtQKmvlRAQlARKArYkygEJ4SZzGRenv1jnLwRyGQyyczzzPdzTk4y4ZmZ+8R/fnO99/5shmEYAgAAABAT9ngPAAAAALASAjYAAAAQQwRsAAAAIIYI2AAAAEAMEbABAACAGCJgAwAAADFEwAYAAABiiIANAAAAxFDSBOzV73v1jYt...
[ "$9 \\sqrt{2}$ meters", "18 meters", "9 meters", "$3 \\sqrt{6}$ meters" ]
null
2
math
grade-7
make-predictions-with-scatter-plots
false
true
Based on the scatter plot below, which is a better prediction for x when y = 3?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAFhCAYAAABK/t0lAAAg/UlEQVR4nO3da3TV1Z038F8ANVwKkYtaJJIuSyChSDD1GaBrTLCr07EDT72NtKuUSxWbuuxo6dOuvrBtWmeNg6uDlpm2Pmrl0mdmHLSljs442tUa21VDL2mDl6hx2kmaDDgVNCJEcMDzvGBISyHczs65JJ/PG3POPzn7G+LifLPZe/9LMplMJgAAgCSG5TsAAAAMJgo2AAAkpGADAEBCCjYAACSkYAMAQEIKNgAAJKRgAwBAQjkr2Hv37o29e/fmajgAAMiLnBXs1tb...
[ "10", "2" ]
null
1
math
grade-8
base-plans
true
true
What does this object's base plan look like?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAADUCAYAAACmjlRXAABHf0lEQVR4nO3dfViT99k38C/iK4pAq7ZVZ1B3+9LqLUq7uueYBtfatasK4rO2Kh3QKdKtlYROV0WbUKGuupJgu03BGVyp1O4Wgdq7lrY3UfYcpVNq+miLdI8YHKAYJxHEFxB5/oi5CjFCINeVK8Hv56+RAvkx7dHzOjl/39Ovvb29HUREREREJIp+ch+AiIiIiKgvYYFNRERERCQiFthERERERCJigU1EREREJCIW2OQ2q9WK+Ph4+Pn5ITU1FVarVe4jEREREcnGjyk...
null
[ "iVBORw0KGgoAAAANSUhEUgAAA8gAAADwCAYAAADck01fAABjGklEQVR4nO3df1RU97U3/veIP5FfJmKiWIF4KyHRq4hW8r3RgSRa0wooeZ4kKClDrhJybxoYcrXV0TBU0VYTZrBJyw8r2PJDeysi0idU48MIWaukSpw8WhF71SEFFDEygqCiyPePcU5AAYE5M2cG36+1slhMmDPbjJPFPnt/9pYB6AIREREREYmiq6sLlzuA/2kHWjuBu/xtm8hujZQBrk7A952Bp0YDMjBBJiIiIiISzeXbXfhbi9RRENFgLXADRkodBBERERH...
0
math
grade-7
apply-addition-and-subtraction-rules
false
true
The number line shows two unknown numbers, t and u. Is t+u positive or negative?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAIGElEQVR4nO3dW0yU+R3G8ecdnAMM7ohUVFQg2SCUYKiCCNYE1+2FW2q7WBtjNqs2Jh6IiRdN1/ai3XTDmnhj0kQbiDZNvCBeNLgbw6bZpN2CScuxhiwRWLoR8YyighxmGIbpBTIskZN1eN+B+X6u5v3PXDzJkPDw5/f+XyMYDAYFAItIZWWlDMPQgQMHrI4Ck/CdA1hMllkdAABe1507d6yOAJPxnQNYTOZdsP1+v5qbm1VfX6+kpCR2Ef4PQ6Mv9MXtCt0Z6FBnX5P...
[ "positive", "negative" ]
null
1
math
grade-7
which-is-the-better-coupon
true
false
Which coupon should Danny use to save the most money on a set of juggling balls originally priced at $7.00?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAVAAAACmCAYAAACMVNdpAAAwuElEQVR4nO2deXwkZZ3/31V9ppN07vuaXHMPMAyHHKODB4oIjqscCrqsCoKI4vFTUXddF+8VXQVUFEUFQXSVERQGUIEdGA5nBoa5J8lMks59X93ps+r3R+foK0mnujrpzjzv12tekOqqb6rSVZ/6Ps/zPSRVVdUeLzS7YDwAfhWBQCAQxMAoQbYBGm1QYgapx6Oqr4wt92kJBAJBenGuHYxNruAPZWZYkxlUV4FAIBBEMx6AY07o9sJxF8hj/uAHQjwFAoFgfrI...
1
math
grade-2
purchases-do-you-have-enough-money-up-to-1-dollar
false
true
A dog sticker costs 21 cents. Do you have enough money to buy it?
"iVBORw0KGgoAAAANSUhEUgAAAvgAAACtCAYAAADF/guOAACQiklEQVR4nOzdd5gb1bn48e8Ujbq0q9V2by/2undsYxtDwKa30FuAhISbSxpwE3LDTbtJbn7pnfQEElogGDDN2KYYDLjbuLf1enuv6tLM+f2xXsWLbTDghnM+z7OPvaPRaM7RaPbVmfe8owghBJIkSZIkSZIknRLUE70DkiRJkiRJkiQdPTLAlyRJkiRJkqRTyFEP8HuTgrLF/Ux6aYDepMz+kSRJkiRJkqTj6X0F+E+2JPnW9ti7Bu6vdKaoi1hs6DO5ZW3kQ++gJEm...
[ "no", "yes" ]
null
0
science
grade-3
identify-materials-in-objects
false
true
Which material is this milk carton made of?
"iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAAAvi0lEQVR4nO19e5AkyV3el5lV1d3T3TO7Ozv7lO52732n29vHzIoT0nEiOMT7YfjHEBhDKCTEw5ItEQ7bGAdgIcRDDoOFRcgSVgQPg8GYkI0RDxmH8ekEN7t7b4mHOZ/27rS3r5nZnZ7p7qrMn//ozr6cmnpkVVd318z2FzEx3fmqrK785fd7ZGUCU0wxxRRTTDHFFFMUDIbT7550H24FcDBUwNAAMAOiJkBzAM0CrAqgllCXANoAWAtgqwBaYFgDsU0Amzj/8fY4buB...
[ "plastic", "polyester" ]
null
0
math
grade-5
scalene-isosceles-and-equilateral-triangles
false
true
What kind of triangle is this?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAB6CAYAAACFmCTJAAAfOElEQVR4nO3deVzUdf4H8NcMN4Igl4KKiSAKcgoqHtyuR+ateGCSNqO23b/azbV1LTvdDtta27Cs1Eo0y+ywdRMUEUbFxBtkABVRQA4RZIBhZn5/IN9kqxV0Zr4DvJ7/9f0O3++LHv3x4tN7Ph+JTqfTgYiIiIiI9EIqdgAiIiIioq6kUxTs4OBg9OvXD6tXr0ZxcbHYcYiIiIiIfpfE1EdEdu/ejWnTprW5NmnSJCQlJWHu3LkipSIiIiIi+m0mv4K9bdu2X13bs2c...
[ "scalene", "equilateral", "isosceles but not equilateral" ]
null
0
math
kindergarten
one-more-with-pictures-up-to-5
true
true
Count the boats in this group. Which group has one more than the group you counted?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAABmCAYAAADxjOYpAAA/GElEQVR4nO3dd5Bl53nf+e+54dycO93OaaZ78gwwAAcAwSEIQiJFWTQlUrJXliXLQWV7tbteS+uwDrW2q7a8VWvvrlUuayVrlShLlsUIQCIBEgSIMJhATOrpnu6ZzvH2zfnccN79497u6Z4MYPI8nyoSg77pnPPOU/3De9/zvJpSSiGEEEIIIYS4Iyz3+wCEEEIIIYR4lEjAFkIIIYQQ4g6SgC2EEEIIIcQdJAFbCCGEEEKIO0gCthBCCCGEEHeQBGwhhBBCCCHuIAn...
null
[ "iVBORw0KGgoAAAANSUhEUgAABIYAAAB+CAYAAABRYRpnAAB3XElEQVR4nOz9d3gcWZrf+X4jMiPSewCJhHckQNBXsXx3sat9T89Mj+kx2ukxGmnldXelGV1p9mqllbTPs3f13Ks1M9LVyI3Gamzbqurpru6uLs+iKVaRBAkCJLxN733GuX9EIgHQFFFVNCB5Ps/TXSTSIDJOvslfvHnihAIIJEmSJEmSJEm6LYQQrFXhShFyDajLtC1JkiTtIlYFPBbY44SwDgqyMSRJkiRJkiRJt81aRXAye6+3QpIkSZJu7QkvWO/1RkiSJEm...
0
engineer
grade-7
evaluate-tests-of-engineering-design-solutions
false
true
Which of the following could Victoria's test show? Kristen's back porch got too warm in the summer sun. Kristen thought that the porch would stay cooler if it had a roof to provide shade. She wanted the roof to keep the porch from getting above 25°C and to stay up in rainy or windy weather. Before she built her roof, K...
"iVBORw0KGgoAAAANSUhEUgAAAUwAAAEICAYAAAA0p80lAAEAAElEQVR4nOz9ebwt613Xib+fqarWtOfhzHfKHTIDgYQZCQEhdhMxQVAkBDCCRlpbjMYItraiKGr/figtNrRKqxgJQRQbmWLAQGbIfHPn4czDHtdYwzP0H0/V2nuf8ebuc9j33pzvea3Xc9aqvaqeelbVt77D5/v5ire97W2B23JbbstteR7JP/2n//RAjqsB3vIj/2hfO9mvxg3hYHX2/o8vb8o8riXXm58X9d/sY/9un7+gEOK622+0vvtd/+f79w96//sRFUB7z0y...
[ "how long the roof would take to build", "if shading the porch would keep it below 25°C", "if the roof would stay up in bad weather" ]
null
1
math
algebra-2
match-exponential-functions-and-graphs
true
false
Which graph matches this equation? \[ y=4\left(\frac{1}{2}\right)^{x}+3 \]
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAVUAAAE1CAYAAABX+HN0AAAinElEQVR4nO3dfXRTZZ4H8G+SpulbaIWmLe8UkJb3QsehgEOFEXlZmRWcUWBRAXEFqTu7K2cHZg+n7DkDMo7D2Z3DUXy3s4zoCIxLUaSgcERtKy0ERqGAQHntG7ShpSVJk9z9I+QmpS305d7ce5Pv55wekpt77/Mjab69b89zdYIgCJVO4McmoMENuAQQEVEHRegAswG4PwZIjgR0lQ5B+K5e6bKIiLRvQg8g4kyT90nvSCAt1pu4RETUMQ1u4FQjUOEETjcB+nq...
3
math
grade-1
subtraction-sentences-using-number-lines-up-to-20
false
true
Which subtraction sentence does this model show?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAABhCAYAAADsidaRAAAWaklEQVR4nO3de1BTZ94H8G+4ySIQUEGlS4nQBYtF8FIB3S5eRnuvulZWO52Ku9bW7r5uteNYW3eqLbvatRedstOp25m1bhdHxQVrdx19XyvBKXIRQVcZ7VYNSAOWgEHCRYjk/eN4AhEVEg6cc5LvZyaT5CQTfz8JnG+ePOc5GpvNZgMR0QBVW4Al/wec/BEoXQhMDZO7ItewDyIiGigvuQsgIvU7aACScoRQp2bsg4iIpMCATUQDcqMDWPS/wNqJwLYUuatxHfsgIiK...
[ "9–5=4", "10–3=7", "8–6=2", "8–3=5" ]
null
3
science
grade-4
use-evidence-to-classify-animals
true
false
Cartilaginous fish are a group of animals with similar traits. The following traits can be used to identify cartilaginous fish: They have fins, not limbs. They live underwater. They have a skeleton made of cartilage. They make eggs with no shells. Observe the animals and read the descriptions. Select the one animal tha...
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAp8AAACmCAYAAACcAuREAAEAAElEQVR4nOy9d7wlVZn9/X32rjrn3Ny5m4buRlI3jeQMjaRGBTGDwIiAipgBFRxxnBkDYxjUURmVMWcGxZwxEUUEJIjEhqZzvPneE6p2eP/Yu869lwzq+P6glp9jc0+oeMKq53nWWnLjsPeLu6BHU6JEiRIlSpQoUaLE3wWjFu4ZBxkx3pfEs0SJEiVKlChRosTfG6MWxHvv/9EbUqJEiRIlSpQoUeKZgWTyH/903oF4EUQElODFISI453DOYcjRXuG9xwloral...
1
technology
grade
logo
false
true
This is (part of) a (former) logo of which computer related brand?
"iVBORw0KGgoAAAANSUhEUgAAAV4AAAEsCAYAAACLwdvQAAAySklEQVR4nO3deXzU9b3v8ff3N2smmWQySSaZbJNkEgKEHVmURaFQthAS0tar9/S0Puxtb70eq4KshVJQFlm0au3j9Lan7ek57W3PQRABRRQX3BBFRFYhe0LIvs4++X3vH4BFyTJJZuY3v5nP8y+RIfPJ8nvx5beyT0+eByGEkOARpB6AEEIiDYWXEEKCjMJLCCFBRuElhJAgo/ASQkiQUXgJISTIKLyEEBJkFF5CCAkyCi8hhAQZhZcQQoKMwksIIUFG4SWEkCCj8BJ...
[ "Fujitsu", "Maxtor", "Toshiba", "PlayStation" ]
null
1
math
grade-6
interpret-histograms
false
true
In a study on public parking, the director of transportation counted the number of cars in each of the city's parking lots. Which range of cars per parking lot occurred least frequently?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAF8CAYAAAD1tsxgAAA7sUlEQVR4nO3deVyU9cL//zerbApuSCNqKZq5JWJpgQscwRS6sSwz0zbaTFu/LdY5p4fn7pzDndWxvEszte3UMSvDE1SKJnasNA0j0RQlS2RRURZld2B+f/hzbonFIa9hZuz1fDx6PLj293DN5HsuPnONm8VisQgAAACAIdwdHQAAAAC4kFCwAQAAAANRsIF2smfPHt17771atmzZb1puhDVr1ujee+/Vl19+abdjAADwe+fp6ABwDUePHtWnn36qPXv2qKKiQgEBAQo...
[ "6-10 cars", "1-5 cars", "21-25 cars", "11-15 cars" ]
null
1
science
grade-8
identify-how-particle-motion-affects-temperature-and-pressure
false
true
The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles. Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature?
"iVBORw0KGgoAAAANSUhEUgAAAmwAAAGZCAYAAAA0Im0SAACQZElEQVR4nO3de1xb9f0/8FcSLgESoOUeaGlLSWpvVJLeVmdpndeS6nRVod72U4lubmrBzU0nYbq5TdBtXqF+p1YFnU4dadV5aam3tja0pbWX0HsLobTlGu4kfH5/0JzmcCkUcj15Px9WyMnJ+XySljfv87mKGGMMfqyh4SyOHTuO7u4uiEQiT1eHEABAYGAgYmPjMHnyZE9XhQgYxT/ijSj+DS3A0xXwpL6+PtTV1YGxPgQFBXm6OoTwNDScRUJCAgIDAz1dFSJAFP+...
[ "neither; the samples have the same temperature", "sample A", "sample B" ]
null
1
math
grade-2
purchases-do-you-have-enough-money-up-to-1-dollar
false
true
A black marker costs 80 cents. Do you have enough money to buy it?
"iVBORw0KGgoAAAANSUhEUgAAAvgAAADECAYAAADqBVUcAACp80lEQVR4nOzdd5iU1dn48e8zfadv741d2tJ7FQQUQexdIxqNLYk/TdREE9PfqHnTTPImahJjjWjUAAKCSFFQepW6LG3Z3sv0fn5/zM4DS0dRFM/nurjYnZmnnTk7ez9n73MfRQghkCRJkiRJkiTpvKA51ycgSZIkSZIkSdLZIwN8SZIkSZIkSTqPnPUAvyMsKF7sYshyNx1hmf0jSZIkSZIkSV+kMwrw59aH+WV54KSB+4ctESp9MbZ2Rrljk+8zn6AkSZIkSZIkSaf...
[ "yes", "no" ]
null
0
math
grade-1
ordinal-numbers
false
true
The first picture is a fish. Which picture is sixth? first
"iVBORw0KGgoAAAANSUhEUgAAAtgAAABdCAYAAACfMRFHAAAoPklEQVR4nO3de3hU5b3o8e8kE01mknBnAgRLgKAiIVyOkoBwaEEUfCpoEVS22pIjdXcLwpbuiqBCGwpVLCi6ZYvgpUcUsCh2EzY0WAtF4nPkkgTBOoQgRJNBieY6SCYz54+VmdzmsuaSzGTW7/M8eUxm1lrz8rp+a/3mXe9F53A4HAghhBBCCCFCIibcBRBCCCGEECKaSIIthBBCCCFECHVYgv19g4O0fdWM/rCG7xukF4oQQgghhNCGgBLs98sbWPX5Za+J80ff2jh...
[ "sub", "turtle", "fish" ]
null
1
math
grade-3
compare-area-and-perimeter-of-two-figures
true
false
Which figure has a greater perimeter?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAJ4AAABmCAYAAAA6RCgPAAALY0lEQVR4nO3df1CUdQLH8fcuC4KRCio/AkESUcNTRAkVf5bYhSdWphFidlbeoSAseqeecKOn5oDeNJmGkzpzc9NZ6EQjNmPXUVntcEo4Djm64/mj3J3aPBwX2yKXX8/9sbH5Yxe82N3v7vJ9zTCKz7PPfsSP++w+3+f7PCpFUZRvW+FiC1g6oF1BklxOo4L7A2Bkf4gMAtW3VkWp/050LKkvSR8Amgsttm+ig2DUfbZWSpKrWTrg/A9gaoX/tID6u3bbAlk6yZ3...
1
science
grade-3
identify-properties-of-an-object
false
true
Which property matches this object? Select the better answer.
"iVBORw0KGgoAAAANSUhEUgAAAKwAAADQCAYAAACa0YpiAABcy0lEQVR4nO39d7glV3XnD392xZPzzbn7ds5ZLbWEAhIIIUBEYwxjxhj79ZixHwZmxjPY4/GP9/3NwMDYfgxjGw9iAI9lMEISSAhJKMfOOffNOZ0cK+z3j3Pv7dtBQhJSJ87neVqqc07dOruqvmfV2muvvbaQUkqAUqnE6OgomUwG27apUeNyo2kaoVCIpqYmPB4PAEJKKYvFImfOnKGjowOPx4Ou65e5qTVqgGVZlEol+vr6WLJkCR6PB1EsFuWpU6dYs2bN5W5fjRq...
[ "sour", "colorful" ]
null
1
math
grade-5
classify-triangles
false
true
Is this triangle isosceles?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAACzCAYAAACzf2u1AAAkcElEQVR4nO3de1xVdb7/8dfeIJGAIqKQ5BUzMkHz2IgxjRjHY2nej1K2eZRWU6T8HB0lyfB+I3XEvGSn4yXjRBqaoJNSXiKTEB1LqTQTmSTvIqAgyGXv3x9NnDzeAIEF+H7+pWvtzX4vL4/Hmy9rfT8mm81mQ0REREREqoTZ6AAiIiIiIvVJWcHu3bs3bm5uhIaGkpycbGQmEREREZE6y/TbLSINGzakoKCg7ET79u157rnneP7552nbtq1hAUVERERE6pKygt2yZUt...
[ "no", "yes" ]
null
1
math
grade-2
fractions-of-a-whole-modeling-word-problems
true
false
Philip is eating meat loaf for dinner. Meat loaf is not Philip's favorite food, but he is really hungry! Fortunately, he has lots of ketchup. He cuts his serving of meat loaf into 3 equal pieces. Which fraction model represents one piece of the serving of meat loaf?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAUoAAABKCAYAAADdXh2xAAACHElEQVR4nO3XsW0TcRjG4fdsJ0VIoEEgBgAKBkiRFcIGTMBATMAEkBXSpKcIoccIKjuxlBDrT3GyRPfZKMZW8jyNfbo76dMVv/uua6218U3ybZZM58ltC8CDNuqSg2Hyci95vpt04+vWziabHgtgOx0+TkYXs/7gxW7y+lFfUYCHbDpPzq+S7zfJ11kymNz2J0QSoHcw7JuYJJfzZDD/6wQAvUUTf7dksNlRALafUAIUhBKgIJQABaEEKAglQEEoAQqjVW/ojk/...
2
math
grade-8
parts-of-a-circle
false
true
What is \line{HI}?
"iVBORw0KGgoAAAANSUhEUgAAAvgAAADICAYAAACdx5VnAAAnpElEQVR4nO3deXhU9cH28XsmyWQhgYSEsEoSwk5YRPZFdpSCLKK2KO4KbdUXbatVHlpsfXy0u7Zq1YJQLAq2KqJYZN8XQZaEEMISEmTJnkBC9mTePwKHiVkACZwzk+/nunJx9rknzB/3OfmdMzan0+kUAAAAAI/gbXaAG8Fms13T/pwDAQAAwF00iIJPQQcAAEBDYTc7AAAAAID6Y7fZbNqwYUO1FYMGDVLLli2rLU9OTpbNZtPbb7+tefPmyWazqays7LoHveuuuzR...
[ "diameter", "chord", "center" ]
null
1
math
grade-5
parallel-sides-in-quadrilaterals
false
true
How many pairs of opposite sides are parallel?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAADLCAYAAABUDuQZAAAmgklEQVR4nO3deXxU5d3+8Wsmk5WQBLKRBQJBQARFkAiyCiogiuygFesuSK2Pa391e2nr1j5W7WNFVFCpogVkEVEBFRBZDARBZN9JyEpICCGEZDKZ+f2BTDIWlcBMTubk8/7rPnfN5MKiXpycc38tLpfLJQAAAABeYTU6AAAAAGAmFGwAAADAiyjYAAAAgBdRsAEAAAAvomADAAAAXkTBBgAAALyIgg0AAAB4EQUbOIPnNvxbveZOVPaJQqOjAAAAP2Nh0AxQo7Lars4...
[ "2 pairs", "no pairs", "1 pair" ]
null
1
math
grade-2
identify-faces-of-three-dimensional-shapes
false
true
Does this shape have a circle as a face?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAEoCAYAAABiqYaBAAAZW0lEQVR4nO3dz28jeXof4LeqKKn1o0WR6plZr7HrHcA29rLABggQIAFiIDnknkv+vpxyzsEBklsOOQQIAnsNJ2vYyE7GyXpnYk93j8gixRarciCLUk//oqgiq4p8ntNsd6+a0unTL973803KsiwDAACoRdr0BwAAgH0iYAMAQI0EbAAAqJGADQAANRKwAQCgRgI2AADUSMAGAIAaCdgAAFCjXpN/+e20jG+/eRMREd/87k3cTouIiHj9ah6vX9299WcXv/+4N3FOniX...
[ "yes", "no" ]
null
0
math
grade-1
flip-turn-and-slide
false
true
What has been done to this letter?
"iVBORw0KGgoAAAANSUhEUgAAAPoAAABkCAYAAACvgC0OAAAMvElEQVR4nO2dT0wbVx7Hv7YHM2CH2CH8sRsaDE1WgiRV4/xRVVY1K2W1B7KXlZJbt/TQZKWNVG0rNVppuyTZw2alXXWlHJo9hCi3KJdqYQ+raENa0ValkNIUiBoEJiXFCYaaNjaemDGzB9cJBLDfeMYzz8zvI3FBb37v53m/78x7b977Pdurr76qhEIh6MFHH30ERVFA9gq319fXp4stswmFQlzfZ6vZE0KhELq6unQxeObMGSiKQvY02NssUFzxZc+uiyWCILiGhE4...
[ "slide", "turn", "flip" ]
null
2
math
grade-2
fractions-of-a-group
false
true
What fraction of the shapes are squares?
"iVBORw0KGgoAAAANSUhEUgAAATEAAADeCAYAAABVADeLAAAb7klEQVR4nO3du3PbSJ4H8K8AiiBBUpBN6i2LU3aVPJJrfXdlZ1ue2PE6nmQTbdVdsp5w9i64ug3PTu6qVsn+B554JrVrMk/t3W7ZPKvKqqGsp0VZBh/NhwjwAor0eixaDRAgCPL7SSawCXR/h/4BbKC7J1qtVgtERCGlBN0AIqJ+sIgRUaixiBFRqEWCbgA5Y+ZKAICmaAIAInr7f6GxlgqsTcOIOckZhZxYxIZUJS9w8tMp3ueKKP8sYFUtqc+pcRXJL3RMr00hfec...
[ "2/7", "9/12", "2/10", "3/6" ]
null
2
math
pre-k
wide-and-narrow
true
false
Which birdhouse is wider?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAANAAAACoCAYAAACR1WDYAAAelElEQVR4nO2dSWwk6ZXff19kRGbkvnAtklXcqrur1NXStJbWyKPFbY2s8SLYcxnAY9gnwzffDPjug2HA8MUHw/bJHgxmYAujltQez8A9o9FAsjWSPK3euxZWkUVWFXcmc8/I2HyIyCSTmaxKMpO5kN8PaKArGRn5ZUb8473vfe+9T7iu627VYKUMBRssF4lEcgqqgHgAXorAVBDEluG6v8gPelgSyejx5QSoD8reP64F4ZWopy6JRNKegg33SrBZg/tlUPKW9wc...
0
math
grade-4
compare-fractions-in-recipes
false
true
Does this recipe call for more salt or black pepper?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAHMCAYAAADvfN8VAAB6XklEQVR4nO3de3zO9f/H8cd17XxihjkmhUoMsVI5k0hWSFH4fqWynJoK+TrOMUVa/eaLyLeQc1JIoVIpp8WwmDOZ0052svOu6/fH7GqXHWxcs9Hzfrvt9v1e1+fzeX/en8+m6/l5X6/P+2Mwm81mrjKbzZhMJjIzMy0/RqMRBwcH7O3tsbOzw2AwICJypzGbzWRlZZGZmUlGRgYmkwl7e3vLj9Fo1H//RESkSAw5AdtkMpGVlUVGRgYZGRk4ODjg4uKiDxQR+Ucym82...
[ "salt", "black pepper" ]
null
1
science
grade-6
identify-elementary-substances-and-compounds-using-models
true
true
Look at the models of molecules below. Select the elementary substance.
"iVBORw0KGgoAAAANSUhEUgAAAKMAAAAiCAYAAAAzgGn9AAAGW0lEQVR4nO2bX0jTXRjHv5OduaWbW1dB7hcS5shp5UV50UsQFWV/3GUGQqSFuuhGE+uFrCD/YWiU1sXsKijoZpKWeFu+UOAQp2AXRvwyqKScM3Hbkfle2N63t/07vz/N3wvnA97sOed5nuF3v/M7z3OObm1tbQ0cjgbI2ugEOJwYXIwczcDFyNEMXIwczcDFyNEMXIwczaBXMjkUCoFSinA4DEojAABCDMjOzgYhBEajUZUkM43P58OHDx8wMzMDURQBAIIgwOFwQBA...
null
[ "iVBORw0KGgoAAAANSUhEUgAAAVIAAADMCAYAAAAhzitoAAAgX0lEQVR4nO3de5hV1WH38e++nDP3GzcVmFEC6HhBRNHQ5qJpjTUxPmD1NRE19UViVSw1gjSpb5SkinjFqGCaoDGpVmseHzUSY9Wn1TeiSRVeAtpCAatclOE+93POvqz3j3OZc2YGGWYPcAZ/n+fZzMzZe/be6zDzm7X3WnstCzCIFIF3mg0nVECVc7jPRKR3rQGsa4dPUlDnwhdr06/bh/WsRPIoRKXYVTnpn1OAtqDrdQWpFA2FqAwG2Z9TL+9aXkEqIhKRglR...
0
science
grade-4
use-data-to-describe-climates
false
true
Which statement best describes the climate of Riyadh? Hint: Summers in the Northern Hemisphere occur in June, July, and August. Winters in the Northern Hemisphere occur in December, January, and February. Riyadh, Saudi Arabia, is a city in Asia. It is located in the Northern Hemisphere. It has a subtropical desert clim...
"iVBORw0KGgoAAAANSUhEUgAAAtgAAALOCAYAAACTXGSDAAD7pUlEQVR4nOzdeXyU5b3//9fMZLLvOyErELIQlrAFwi6CKLKDiBuox6qtp7bHflvbepZfz6mn5/TYc9pq22NPK+4isihhEUEJixBAE0IgCUkgZAGy78ns1++PNCORAEEmmQE/z8fDh2Tmnrk/M3PPzHuu+1o0SimFEEIIIYQQwiG0zi5ACCGEEEKI24kE7OvIzs5Go9Gg0WgYP368s8sR30Lr169Ho9Ewbty4m76v0NBQ+/Hc859WqyU8PJxHHnmEyspK+7bl5eX2bZq...
[ "Summers have lower temperatures and lower precipitation than winters.", "Winters have lower temperatures and more precipitation than summers." ]
null
1
math
grade-1
which-tally-chart-is-correct
true
true
Tim baked some cookies. Which tally chart shows the right number of each cookie?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAADhCAYAAADyOcJJAACFAklEQVR4nOzdd5xcZ3X4/88t09vuzmzVSlqtpFWXLcuyLAvcC9iG0M0XEuNQYooNIRhCSEwIEEgIJZhiAr+ElgCmmmpjjLFl3GRJtnovq12ttsy26ffOLb8/7haturSrlSyd9+vFa70z9z73mbujF2eeOc85iuu6LkIIIYQQQogJoZ7tCQghhBBCCHE+kQBbCCGEEEKICSQBthBCCCGEEBNIAmwhhBBCCCEmkATYQgghhBBCTCAJsIUQQgghhJhAEmALIYQQQggxgST...
null
[ "iVBORw0KGgoAAAANSUhEUgAABDcAAADhCAYAAADcZV72AADOB0lEQVR4nOzdd3hc5ZX48e8t04vKjKolW5ZtuQO2AWNM6C1AYFMIhPxCSEiWZAOpJJueLJtNzxJIsqRs+m4Sh2wgBAKhBQwYbGyDjdyLLEuWVUZternl98eVJQvJlmy5cz7P40fSnXvf+861NNKce95zFNu2bYQQQgghhBBHhKIox3sKQgjxhqMe7wkIIYQQQgghhBBCTIQEN4QQQgghhBBCCHFSk+CGEEIIIYQQQgghTmoS3BBCCCGEEEIIIcRJTYIbQgghhBB...
0
math
grade-4
classify-triangles
false
true
What kind of triangle is this?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAABsCAYAAABQF8VPAAAXBUlEQVR4nO3df1TUdaL/8ecMvwRUQARcJS2MNEpdpZvMKo6G1k5+AQMRCCo0V6/udnfr5t1fnu7unuzu3jyr3XL93vCqyTEXsYS0tBatq26xu9HXrJivYnJTV8xJFIVhgIG5f7ixWVoCM3xAXo9z5hxk4P1+jX+9/Pj+YfJ4PB5ERERERMQrzEYHEBERERG5nqhgi4iIiIh4kQq2iIiIiIgXqWCLiIiIiHiRCraIiIiIiBepYIuIiIiIeJEKtoiIiIiIF6lgi4iIiIh...
[ "acute", "obtuse", "right" ]
null
2
math
pre-k
count-scattered-shapes-up-to-10
false
true
How many shapes are there?
"iVBORw0KGgoAAAANSUhEUgAAAvgAAAFfCAYAAAA707goAAATq0lEQVR4nO3dSW7cxtvA4eInNwytok3gYSPkRIEBHyQHM2DkSNp42CkrwWgL/C8iJvqUHsjmUFVvPc8JCmANP5Wa3V3f930CAABC+L/cAwAAAJYj8AEAIBCBDwAAgQh8AAAIROADAEAgAh8AAAIR+AAAEIjABwCAQAQ+AAAEIvABACAQgQ8AAIEIfAAACETgAwBAIAIfAAACeZV7APDcjy8/09dP96nf97mHclK369K7jzfp9XtLCAAoixt8ilFL3KeUUr/v09dP9+n...
[ "7", "2", "3", "1" ]
null
0
math
grade-1
match-analog-clocks-and-times
false
true
What time does the clock show?
"iVBORw0KGgoAAAANSUhEUgAAAvgAAAEJCAYAAADhBFPCAABQpUlEQVR4nO3de1zT970/8Fe4BVBIUC4CagJaEbwQL/VaIVStba2Ka7utlxU8Z+12dtoVt3Xnsq3gbuec9Wzi2u1sa/sz1nbdurZi1bZqrRFvxSoGrVysQFAUEZQEBBLC5fcHknIJyTchIRdez8eDR0Py+X6/7yJ58P5+8v68P6Kenp4eEBERERGRT/BzdwBEREREROQ8TPCJiIiIiHwIE3wiIiIiIh/CBJ+IiIiIyIcwwSciIiIi8iEB7g6A3M/U0QWTsRMdxk50GLv...
[ "6:00", "5:30" ]
null
0
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.
"iVBORw0KGgoAAAANSUhEUgAAArwAAACtCAYAAABSr6xUAAAyOUlEQVR4nO3deXhU1f0/8Pfsk8xkm2xkJ5CwBFmD7CqgsmhVquCCrbXV2lZtba1W/Wr77e+xfqvW2qpVWzdcUIuIC1qqgoAsZYewQxKW7AnZZpJJMpnlzu8PhLqEZCaZmXPvnffreXgeCDP3fpKc+dzPOfecczV+v98PIiIiIiKV0ooOgIiIiIgonFjwkqwtWLAAGo3ma39SU1Nx8cUXY8OGDUEd68CBA9BoNNi0aVPQcfh8Pjz00EPQarX461//GvT7iYiUQg551+f...
[ "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
science
grade-3
identify-solids-liquids-and-gases
true
false
Select the gas.
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAKUAAADCCAYAAAAo2gI4AAAqy0lEQVR4nO2dWYik2Xmmn3+PfcvIvSq3quqSutUtaSQPNvTM3BgbGQ0I60LYagwW7hsvko3wnbExMgLbIDBqsK9kpAtjkMHgARt6GBirfaPpltTaLHVXb1W5bxEZe/zLOWcuTkTknlnV2VUZkfk/kJWVEZmR8Ue8+Z1zvvc73zFerSl1Nw1Zi5iYJ0pDwBstWA+gaMPzBX27GQsy5rLIWnA3rf/fFPu3m7EgYy6Tvv5CtX+beTlPJSbmdGJRxgwdsShjho5YlDF...
1
math
kindergarten
flat-and-solid-shapes
true
false
Which shape is flat?
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAMwAAADMCAYAAAA/IkzyAAAVKklEQVR4nO3deXSU9b3H8fc8s2RfIAtkj0hYBGQPi4ooQorK1eJS8bS9ved42tN6T09v9bT33Ht7Tm9bbQFR61aqvb2ihEVFFBCVokCR1AtkgSCQsIZAwpKYfTKZ7bl/zGSYgCgP5JlnZvJ9ncMh85vJPL8hfOb3zO/5fX8xqaqqnnXCUTt0eMCtIoTws5ggyQxF8TDEBqazPaq6u93obgkR/qYlg+WI3XcjywYjE3xpEkL4dHigpgsanVBrB6Xd7btDwiLE5ZL...
1
science
grade-5
evaluate-natural-energy-sources
true
false
Below are three examples of using energy from natural resources. Select the use of energy that did not add to air pollution. Hint: Burning a material such as wood, oil, or coal releases chemicals that add to air pollution. A gas stove created an open flame for cooking by burning natural gas. A candle burned paraffin, a...
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAp8AAADOCAYAAAB4pWlzAAEAAElEQVR4nOz9ebQkWXneC//2jjHnM9apuaqrq7u6u7obaJoGxKRmEBIgIUAMsgS6yJav7CutT8jyIPtaV9fWWlfWXda10YBlZIEQRpYFEshYyIhBYhI90hM9UV1d83TmnGPa+/tjR8SJzJPnVBXdgIZ4auXKPJkx7NgRWfnE877v84p71rU+UoOGRYkSJUqUKFGiRIkS3xJ0EniiB6Ida10SzxIlSpQoUaJEiRLfanQSEFpr/Z0eSIkSJUqUKFGiRIm/G7BH/1Q...
1
math
grade-3
match-analog-and-digital-clocks
true
true
Look at the analog clock: Which digital clock shows the same time?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABX9UlEQVR4nO3de1yb930v8I+4PAIsAZawQfJFwhdIHIhJyNrgNgWS1E7bOMaJmzZOd0zWLTtdTxe8bmm37hzjdT3r2p1j3Hbd6WUN6Vq3XewYB7eN3SQW8Wqa1MQi+CbsGGFjcTHCAmEu4qLzB5EqjC4/3QV83q8Xr4Ce3/M83yTixVe/5/v7/mROp9MJIiIiIiKKiKR4B0BEREREtJAwwSYiIiIiiiAm2EREREREEcQEm4iIiIgogphgExERERFFUEq8A6D4m5oex+T...
null
[ "iVBORw0KGgoAAAANSUhEUgAAA5AAAAEJCAYAAADiusiGAABiz0lEQVR4nO3de1zU15038M9w+XFxhsEZFBgvM2iExIiQkDbVNgFzwbQNERObNmmsZNu4T7dmg9s27W73eTTb9tlu233ENtvdJt2GNKm9acVgL5qkDslWmkTiIEYFjQ6Kw0UGBwa5DJd5/iBMQeZyfnNn+LxfL14O8zvn/L7ikMx3zjnfo3A6nU4QEREREVFQKBSKSIdAFDJxkQ6AiIiIiIiIZgcmkERERERERCSECSQREREREREJYQJJREREREREQphAEhERERE...
0
science
grade-4
compare-properties-of-objects
false
true
Which property do these three objects have in common? Select the best answer.
"iVBORw0KGgoAAAANSUhEUgAAAvgAAADQCAYAAAByQhWRAADbm0lEQVR4nOz9d5gc13mnDd+nQufuyTkh50AARCYCEyRRiQomZcmW5JW8lj9/trxrr/fdYK9317v+XtsbHHZty7YsKstWZhSDSAIgcgYGwGACZjB5pmemc6h0vj+qp2dAUVQCMBRZ93U1u6e7uvrUQbHqd57znN8jpJQSoFAoMDo6SiqVwrIsPDwWGk3TiMViNDU1EQgEbutveee/xxsN7/z3eCtzJ89/D483I0JKKfP5PL29vXR0dBAIBNB1faHb5eGBaZoUCgX6+/t...
[ "stretchy", "blue", "rough" ]
null
2
science
grade-5
animal-adaptations-skins-and-body-coverings
true
true
Emerald tree boas live in the forests of South America. The tree boa is adapted to be camouflaged among green leaves. Which animal is also adapted to be camouflaged among green leaves?
"iVBORw0KGgoAAAANSUhEUgAAAvgAAAEKCAYAAABnkCFsAAEAAElEQVR4nOydd5hdVdXwf6ff3qeXTJJJ7w2SAIFIlSYdBARFRcUKL4r6Kr5Y0M+uSFFApYmANClKr4EEUgjpyWQm0+ud29up3x83mTehBozo53d/z3OfmXPOPnuvc87e+6yz9tprC47jOKZpYts2FSpUqFChQoUKFSpU+H8TURSRZRnBMAynotxXqFChQoUKFSpUqPD/PqIoIlaU+woVKlSoUKFChQoV/jOwbRvxXy1EhQoVKlSoUKFChQoVDhwVBb9ChQoVKlSoUKF...
null
[ "iVBORw0KGgoAAAANSUhEUgAAA88AAAEKCAYAAAAsMWftAAEAAElEQVR4nOy9d5wkVb3+/z4Vujr3dE+Om3dZ2LxLzkmQJCggAmLWK0a4Iuo1XLM/sxdBJagkuYgICAaSxEXS7rLsLptndnd2cugcK/3+qO6e7plZWGAVv/fVz+tVM91Vp845dSp0Pef5BGHbtm0YBpZlUUMNNdRQQw011FBDDTX8vwlJklAUBSHEW92VGmr4PwmpRpxrqKGGGmqooYYaaqjh/31YloVhGG91N2qo4f8spBpxrqGGGmqooYYaaqihhv8bqL3b11D...
1
math
grade-3
select-figures-with-a-given-area
true
false
Which shape has an area of 9 square units? The shapes are made of unit squares.
null
null
[ "iVBORw0KGgoAAAANSUhEUgAAAKQAAAD+CAYAAAC0oK7QAAAEQUlEQVR4nO3csY5UZRiA4W92gQJBO9FWgyTayyVob2XlldjoldhoZe8tSK8JorYuLQubgGyOxYREGwvDmfM6+zzVTCY53z/Jmz+n+nbLsixnL2Z+vZg5v5x5uQwczLXdzO3Tmbs3Z+7cmNmdPV+WB0+2PhbM3H9z5tqji/2Xd2/M3HtjXyscyvnlzMNnM3+8mPnlYubkycv9D2JkC7dP9+3NzDy9nDm5/NsPsIVX7f25zJxsexT4J0GSIkhSBEmKIEkRJCmCJEW...
0
math
calculus
determine-continuity-on-an-interval-using-graphs
false
true
Is the function f(x) continuous on the open interval (0,4)?
"iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAACElUlEQVR4nO3deVxVZf4H8M/d2EEQEBAFxS0xwCU0Fbd01LRFLbNlKq2Z9mlq1vZtymmmmsqsqWYqrWkZnUxLRdPcEFMUBQV3lFVZLuvdz13O7w+CH+QGeh4OVz7v16tXcrnnc7+cc++53/vc55yjkWVZBhERERERKUKrdgFERERERJcTNthERERERApig01EREREpCA22ETUyqZNm9CnTx/MnDkTAHD99dfjm2++Oet9nU4nrr76auzcubMjSyQiIurUNDzIkYhamjJ...
[ "yes", "no" ]
null
0
math
grade-1
flip-turn-and-slide
false
true
What has been done to this letter?
"iVBORw0KGgoAAAANSUhEUgAAAPoAAABkCAYAAACvgC0OAAANvUlEQVR4nO2db0wb5x3Hv2f8BwwYb7VRSkL+rI0gZVKakURqkyhOo4ZU3RRY1KZq1BQmsRft2lXrpjb/KtCqNNHUSkvUV0QKhSVS86Ih0lQRukKiZHmRFJdqQ3EbOhUodMK0A1MOzja+vaBHTfjj57HPd2ff7yPlDXnu9zwh/vruuXuezwk7d+6UfT4f1ODatWuQZRlUL/l6XV1dqtTSG5/PZ+jfs9nqWX0+HxoaGlQp2NjYCFmWqV4K9bIFs32uIsL3eOY3T0KcnsB...
[ "turn", "slide", "flip" ]
null
1
math
grade-1
find-the-next-shape-in-a-growing-pattern
true
true
What shape comes next?
"iVBORw0KGgoAAAANSUhEUgAAAvgAAADhCAYAAAC9ZMGZAAATMklEQVR4nO3du3Nc130H8N8+sABJiFA0Y8qyNPY4itMkM26ccePEGSfjJi7d+R9IlyJFGnsyidWlSZsi+QtSJ44j2+FDREyKkhhK1IOiRIkURJMi+MRjH/feFDAl0iRALLB7791zP58ZF9Zwcc/3HOzOdw/unm0VRVEEAACQhHbVAwAAACZHwQcAgIQo+AAAkBAFHwAAEqLgAwBAQhR8AABIiIIPAAAJUfABACAhCj4AACREwQcAgIQo+AAAkBAFHwAAEqLgAwBAQhR...
null
[ "iVBORw0KGgoAAAANSUhEUgAAAz4AAADhCAYAAAAJS2C/AAAVnklEQVR4nO3dzZMc530f8F/P2y4Wy12YVQIFUSWVw8jliuOoXGWXclBsl53yIVFVLrrpH8jNhxx8kSoVSzdfcvXB/gtyjhWFooMXEhFAkERAghIhkCAJLEGAWHAJ7MtMT3fnsCIJCLvYt5nunu7Pp4oHApjp5/s8+zLf7p5nkqIoigAAABohSZKqh1BLnaoHAAAAMG2KDwAA0HiKDwAA0HiKDwAA0HiKDwAA0HiKDwAA0HiKDwAA0HiKDwAA0HiKDwAA0HiKDwA...
1