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NAEP 2007: Selected Released Grade 8 Items & Results - Mathematics |
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NAEP releases selected items after each assessment. The five questions and results that follow are from the eighth grade mathematics test in 2007.
[1] Three tennis balls are to be stacked one on top of another in a cylindrical can. The radius of each tennis ball is 3 centimeters. To the nearest whole centimeter, what should be the minimum height of the can?
Explain why you chose the height that you did. Your explanation should include a diagram.
Answer: 18 centimeters Results: Nation 18% correct and 20% partial; Idaho 20% correct and 25% partial Note - partially correct means the student answered 18 centimeters but did not explain how the answer was calculated OR the student did not get correct answer but correctly explained how the answer could be calculated.
[2] If 15 + 3x = 42, then x =
A) 9 B) 11 C) 12 D) 14 E) 19
Answer: A 2007 Results: Nation 82% correct; Idaho 82% correct
[3] Peter bought 45 sheets of plywood at a total cost of $400. He plans to sell each sheet of plywood for $15. If Peter has no other expenses, what is the fewest number of sheets he must sell to make a profit?
A) 3 B) 15 C) 16 D) 26 E) 27
Answer: E 2007 Results: Nation 53% correct; Idaho 59% correct
[4] Nick has a square piece of paper. He draws the two diagonals of the square, finds the point where they intersect, and labels that point A. Then he folds each of the four corners of the paper onto point A. What geometric shape is produced?
A) A square B) A right triangle C) An isosceles triangle D) A pentagon E) A hexagon
Answer: A 2007 Results: Nation 43% correct; Idaho 49% correct
[5] The temperature in degrees Celsius can be found by subtracting 32 from the temperature in degrees Fahrenheit and multiplying the result by 5/9. If the temperature of a furnace is 393 degrees Fahrenheit, what is it in degrees Celsius, to the nearest degree?
A) 649 B) 375 C) 219 D) 201 E) 187
Answer: D 2007 Results: Nation 35% correct; Idaho 37% correct |
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The items and results were taken from the NAEP Question Tool, which tool is available for public use. Released items (with results) from all NAEP assessments are available on the NAEP Question Tool. |