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AC9M7SP02

classify triangles, quadrilaterals and other polygons according to their side and angle properties; identify and reason about relationships

Elaborations

  • AC9M7SP02_E1using strips of paper with parallel sides to make triangles and quadrilaterals, and contrasting the rigidity of triangles with the flexibility of quadrilaterals
  • AC9M7SP02_E2constructing triangles with 3 given side lengths and discussing the question, “Can any 3 lengths be used to form the sides of a triangle?”
  • AC9M7SP02_E3identifying and communicating about side and angle properties of scalene, isosceles, equilateral, right-angled, acute and obtuse triangles using geometric conventions
  • AC9M7SP02_E4describing, comparing and contrasting squares, rectangles, rhombuses, parallelograms, kites and trapeziums, explaining the relationships between these shapes

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AC9M7SP02 – classify triangles, quadrilaterals and other polygons according to their side and angle properties; identify and reason about relationships | LessonForge