Year 4 · Mathematics and statistics · Geometry
Polygons, symmetry and transformations
Regular and irregular polygons to 12 sides, lines of symmetry, views of 3D shapes, reflections, translations, rotations and grid references.
Everything for this topic in one place
- 3D lesson: Polygons, symmetry and transformations — Name regular and irregular polygons, find lines of symmetry, look at 3D shapes from the top and front, flip, slide and turn a shape, and use grid references on a map.
- 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 2 (Years 4–6), with New Zealand places, money and native birds.
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More Year 4 maths topics
Place value to 10,000 and rounding · Adding and subtracting · Multiplication and division · Fractions and tenths · Money · Number sentences and growing patterns · Area, perimeter and volume · Angles and time · Dot plots and bar graphs