Common Core Alignment:.

3.MD.7:

Measurement And Data

Geometric Measurement: Understand Concepts Of Area And Relate Area To Multiplication And To Addition.

Relate area to the operations of multiplication and addition.

4.MD.3:

Measurement And Data

Solve Problems Involving Measurement And Conversion Of Measurements From A Larger Unit To A Smaller Unit.

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.

5.NF.4b:

Number And Operations - Fractions

Apply And Extend Previous Understandings Of Multiplication And Division To Multiply And Divide Fractions.

Find the area of a rectangle with fractional side lengths by tiling it with unit squares of the appropriate unit fraction side lengths, and show that the area is the same as would be found by multiplying the side lengths. Multiply fractional side lengths to find areas of rectangles, and represent fraction products as rectangular areas.