Grade 5: classification of prisms and pyramids

• investigating 3D objects and 2D shapes, based on multiple attributes

• describing and sorting quadrilaterals

• describing and constructing rectangular and triangular prisms

• identifying prisms in the environment

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Grade 6: Triangles

• scalene, isosceles, equilateral

• right, acute, obtuse

• classified regardless of orientation

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Grade 6: angle measurement and classification

• straight, acute, right, obtuse, reflex

• constructing and identifying; include examples from local environment

• estimating using 45°, 90°, and 180° as reference angles

• angles of polygons