Grade 4 · Measurement and Data

CCSS.MATH.CONTENT.4.MD.A.3

Apply the area and perimeter formulas for rectangles in real world and mathematical problems.

Read this standard on the official Common Core site

Lessons that teach this standard

• Area of a Rectangle: Length Times Width

  Why the area of a rectangle is length times width, how to find a missing side, why area uses square units, and how to handle L-shaped figures.

• Perimeter: The Distance Around a Shape

  What perimeter means, how to find it for any shape by adding the sides, the rectangle shortcut, and how to work backwards from a known perimeter.