Subject
Grade
Concept/Content
angle measurement and classification
Elaboration
- 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
- Small Number stories: Small Number and the Skateboard Park (mathcatcher.irmacs.sfu.ca/stories)
keywords
angle