Triangle Side Classification
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Triangle Side Classification
📚 Part 1: Identify and Classify
Learning Intention: To categorise triangles by their side properties (equilateral, isosceles, scalene).
Success Criteria: I can identify triangle types from side lengths and use vocabulary such as tapatoru (triangle), equilateral (tapatoru ōrite taha), isosceles (tapatoru ōrite rua), scalene (tapatoru kore ōrite).
✏️ Part 2: Hands-on and Short Answers
✅ Answers
1. Equilateral — all three sides equal (tapatoru ōrite taha).
2. Isosceles — two sides equal (tapatoru ōrite rua).
3. Scalene — all sides different (tapatoru kore ōrite).
4. Isosceles — two sides equal (10 cm, 10 cm, 14 cm).
5. Tick: 5 cm, 5 cm, 8 cm and 9 cm, 9 cm, 2 cm. Do not tick 6 cm, 7 cm, 8 cm (all different).
6–8. Example recordings (answers will vary):
Equilateral example: 6.0 cm, 6.0 cm, 6.0 cm — Equilateral (tapatoru ōrite taha).
Isosceles example: 7.0 cm, 7.0 cm, 4.0 cm — Isosceles (tapatoru ōrite rua).
Scalene example: 5.0 cm, 6.5 cm, 8.0 cm — Scalene (tapatoru kore ōrite).
9. Example sentence: "An isosceles triangle has two equal sides, while a scalene triangle has no equal sides."
10. Example reflection: "I learnt how to measure and check sides. I still wonder how angles relate to types of triangles."
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