Grade 6 - Geometry & Measurement
Standard 6.GM.4.3 - Use the fact that the angle sum of triangles is 180º and quadrilaterals is 360º to find the missing interior angle.
Included Skills: Geometry
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 • Small Number stories: Small Number and the Skateboard Park (mathcatcher.irmacs.sfu.ca/stories)