Unit 3: Multiplication, Division & Number Sense
Target 234.MD.A.3[EW / Resource Gap] Area & Perimeter

I can solve problems involving the area and perimeter of rectangles using the formulas.

Standard cap: 4 - Solve unfamiliar rectangle problems with constraints or multiple possibilities.

Subskills what students must be able to do

  • 1I can decide whether a problem is asking about area or perimeter.
  • 2I can find area and perimeter correctly.
  • 3I can find missing side lengths using known area or perimeter.

Proficiency Scale & ⚓️ Tasks

1 → 4 proficiency scale
1Beginning

“Is ‘distance around a playground’ area or perimeter?”

2Developing

“Find the area and perimeter of a 7-by-4 rectangle.”

3Proficient

“A rectangle has area 48 square feet and width 6 feet. Find the missing length. Solve a similar perimeter problem.”

4Advanced

“Design two different rectangles with the same area but different perimeters. Explain why this is possible.”