A rectangle's area is its rows times its columns

Skill, multiplication, level 3

Lines up with: 3.MD.C.6, 3.MD.C.7.a, 3.MD.C.7.b

Builds on

• A times B means A groups of B
• Cut a rectangle into rows and columns of equal squares

Leads to

• Cutting a shape up and moving the pieces keeps its area
• Multiply a fraction by a fraction
• Multiply numbers split into parts with an area diagram

Lessons

No lesson yet.

All ideas