Mathematics
Geometry
Procedural
9–10 yrs
Measuring angles
测量角度
Description
Measure angles in whole-number degrees using a protractor; draw given angles and sketch angles of specified measure
Mastery Evidence
- Measure an angle with a protractor and read 47°
- Draw an angle of 135° using a protractor
- Identify which scale on the protractor to use for an obtuse angle
Assessment Prompt
If your child is given a protractor and an angle drawn on paper, can they measure it accurately and then draw a new angle of a size you specify?
