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Your search returned 10 results.

Component: 3.MD.5.a

Subject Area: Mathematics (NYS P-12 Common Core)

Grades: Elementary, 3rd Grade

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.

Component: 3.MD.5.b

Subject Area: Mathematics (NYS P-12 Common Core)

Grades: Elementary, 3rd Grade

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.

Standard: 3.MD.6

Subject Area: Mathematics (NYS P-12 Common Core)

Grades: Elementary, 3rd Grade

Measure areas by counting unit squares (square cm, square m, square in, square ft, and improvised units).

Standard: 3.MD.7

Subject Area: Mathematics (NYS P-12 Common Core)

Grades: Elementary, 3rd Grade

Relate area to the operations of multiplication and addition.

Component: 3.MD.7.a

Subject Area: Mathematics (NYS P-12 Common Core)

Grades: Elementary, 3rd Grade

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.

Component: 3.MD.7.c

Subject Area: Mathematics (NYS P-12 Common Core)

Grades: Elementary, 3rd Grade

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 * b and a * c. Use area models to represent the distributive property in mathematical reasoning.

Component: 3.MD.7.d

Subject Area: Mathematics (NYS P-12 Common Core)

Grades: Elementary, 3rd Grade

Recognize area as additive. Find areas of rectilinear figures by decomposing them into non-overlapping rectangles and adding the areas of the non-overlapping parts, applying this technique to solve real world problems.

Standard: 3.MD.8

Subject Area: Mathematics (NYS P-12 Common Core)

Grades: Elementary, 3rd Grade

Solve real world and mathematical problems involving perimeters of polygons, including finding the perimeter given the side lengths, finding an unknown side length, and exhibiting rectangles with the same perimeter and different areas or with the same area and different perimeters.

Standard: 4.MD.3

Subject Area: Mathematics (NYS P-12 Common Core)

Grades: Elementary, 4th Grade

Apply the area and perimeter formulas for rectangles in real world and mathematical problems. For example, find the width of a rectangular room given the area of the flooring and the length, by viewing the area formula as a multiplication equation with an unknown factor.