Crateclass

Year 3 · Mathematics and statistics · Measurement

Length, mass, capacity, perimeter and area

Reading rulers, scales and jugs in cm/m, g/kg and mL/L, perimeter as the sum of the sides and area by counting squares.

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Everything for this topic in one place

  • 3D lesson: Length, mass, capacity, perimeter and area — Measure with a 3D ruler, read kitchen scales and a measuring jug, walk around shapes to find perimeter and count squares for area.
  • Teacher presentation — slides to put on the projector.
  • Worksheets at three levels — Tūī (support), Kererū (core) and Kea (extension), each with an answer key on the last page.
  • Online practice — assign it to your class in the Crateclass classroom and the results come back by themselves.

Written for Te Mātaiaho, Phase 1 (Years 0–3), with New Zealand places, money and native birds.

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See a full 3D lesson, a game and printable worksheets with no account on the free samples page. Teachers who sign up by 18 December 2026 get everything free until 9 April 2027.

More Year 3 maths topics

Numbers to 1000 · Adding and subtracting to 1000 · Multiplication and division facts · Fractions · Money and change · Number sentences and growing patterns · Time · Shapes, symmetry and maps · Bar graphs and dot plots

All topics, Years 1–8