ACARA AC9M3M02, Perimeter and area

Year 3 · Measurement

Measure and approximate the perimeter and area of shapes and enclosed spaces using suitable formal and informal units.

Below are free printable maths worksheets that support AC9M3M02. Print them as PDFs, or generate a fresh one. Every maths answer key is computed in code, so it is never wrong.

Teach this code

Deliver a whole lesson on AC9M3M02 from a textbook-grade teaching unit, with a hook, worked examples, diagrams, misconceptions, and an exit ticket.

Area and perimeter

Grade 3 (ages 8 to 9)

Shapes, partitioning, and area by counting squares

Grade 3 (ages 8 to 9)

Measurement: units, formulas, and word problems

Grade 4 (ages 9 to 10)

Teaching guide

What students learn

Measure and approximate the perimeter and area of shapes and enclosed spaces using suitable formal and informal units.

Perimeter = 5 + 3 + 5 + 3 = 16 units

How to teach it

Sort and name 2D and 3D shapes by their properties (sides, angles, faces), then build up to perimeter (add the sides) and area (cover with unit squares).

Worked example

Find the area.

Answer: 30

Why: 2 × 15 = 30

Generated and checked in code, so it is correct.

Watch out for

Confusing perimeter and area, and judging a shape by its orientation rather than its properties.