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MAFS.3.MD.3.5: Recognize are as an attribute of plane figures and understand concepts of area measurement.
- A square with side length 1 unit, called a "unit square," is said to have "one square unit" of area, and can be used to measure area.
- A plane figure which can be covered without gaps or overlaps by n unit squares is said to have an area of n square units.
MAFS.3.MD.3.6: Measure areas by counting unit squares (square cm, square m, square in, square ft, and improvised units.)
MAFS.3.MD.3.7: Relate area to the operations of multiplication and addition.
- Find the area of a rectangle with whole-number side lengths by tiling it, and show that the area is the same as would be found by multiplying the side lengths.
- Multiply side lengths to find areas of rectangles with whole-number side lengths in the context of solving real world and mathematical problems, and represent whole-number products as rectangular areas in mathematical reasoning.
- Use tiling to show in a concrete case that the area of a rectangle with whole-number side lengths a and b+c is the sum of a x b and a x c. Use area models to represent the distributive property in mathematical reasoning.
MAFS.G.1.2: Partition shapes into parts with equal areas. Express the area of each part as a unit fraction of the whole.
Finding Area
Finding Perimeter
Distributive Property
Missing Side Length
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