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Tutorials:
- 5th grade
- S3.B2.A1a, Tutorial 1, Instructional Item.
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| Q. What is the width of the medal at its widest point to the nearest inch? |
Q. What is the width of the medal at its widest point to the nearest 1/8 of an inch? |
- S3.B3.k3, Tutorial 1, Practice 2.
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B. Triangular prism
Why option B is correct. This is the base of a triangular pyramid because it has 3 edges. Though it might be a triangular prism, it is impossible to know since we cannot tell if this shape has a second base parallel to this one. (A prism has 2 bases, and a pyramid has only 1.) |
B. Triangular prism
Why option B is correct. This is the base of a triangular prism because it has 3 edges. |
- 7th grade
- S4.B2.K1e, Tutorial 2, Practice 1.
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| B. Why is option B correct. For numbers like 103, 104, and 106 you would write 10 for the stem and 3, 4, and 6 as the leaf. In this list the stems are 6, 7, 8, 9, and 10. The correct plot is choice B. |
B. Why option B is incorrect. 94 appears twice in the data set. It should appear twice in the stem and leaf plot. |
| C. Why option C is incorrect. 94 should appear only once in the plot. |
C. Why option C is correct. For numbers like 103, 104, and 106 you would write 10 for the stem and 3, 4, and 6 as the leaf. In this list the stems are 6, 7, 8, 9, and 10. The correct plot is choice C. |
- 10th grade
- S2.B2.K3c, Tutorial 1, What You Have Learned.
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| 3) Adding two equations to each other is the same as multiplying each side of one equation by -1 and then adding them. |
3) Subtracting one equation from another is the same as multiplying each side of one equation by -1 and then adding them. |
- S2.B4.A1i, Tutorial 1, Instructional Item.
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- S4.B2.A1f, Tutorial 1,Age Appropriate Skill Application.
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| There were 4 days on which 2 inches of snow fell: 1/2, 1/9, 1/10, and 1/11. This is the greatest number of days on which a particular number of inches of snow fell. Therefore the mode is 2. |
There were 4 days on which 2 inches of snow fell: 1/5, 1/9, 1/10, and 1/11. This is the greatest number of days on which a particular number of inches of snow fell. Therefore the mode is 2. |
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