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Content Area: Math
Index: 4.2D Grade 7 CPI 2
Standard: 4.2 - Geometry and Measurement
Strand: D - Units of Measurement
Cumulative Progress Indicator: 2 - The student will select and use appropriate units and tools to measure quantities to the degree of precision needed in a particular problem-solving situation.
Grade: 7
Framework Activities
· Students plan a vegetable garden, determining the unit of measure appropriate for the garden, estimating its size, and then computing the perimeter (for fencing) and area (for fertilizer).
· Groups of students use a scale drawing of an apartment (1 cm = 1 foot) to find out how many square yards of carpeting are needed for the rectangular (9' x 12') living room and other rooms.
· Statements work through the Mathematics at Work lesson that is described in the Introduction to this Framework. A parent discusses a problem which her company faces regularly: to determine how large an air conditioner will be needed for a particular room. To solve this problem, the company has to estimate the size of the room, in terms of its volume and the areas of any windows, after determining the appropriate units.
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