3.M.5
Find the area of a rectangle with whole-number side lengths by modeling with unit squares, and show that the area is the same as would be found by multiplying the side lengths. Identify and draw rectangles with the same perimeter and different areas or with the same area and different perimeters. (E)
Khan Academy ResourcesArea of rectangles reviewArea of rectangles with partial arraysTransition from unit squares to area formulaArea and perimeter situationsCreating rectangles with a given area 2Creating rectangles with a given area 1 Counting unit squares to find area formulaTransitioning from unit squares to area formula

1-on-1 AI tutoring aligned to 3.M.5. Instant help for students, real-time insights for teachers.
Used in classrooms by 100,000+ students at Baltimore County, Plano ISD, Deer Valley USD, KIPP, and districts nationwide.
Free for teachers, forever →