Angles
Angles with Millie and her kitten Biscuit, at a grade 4 level: what an angle is (two rays meeting at a vertex); right angles, acute and obtuse angles; quarter, half, three-quarter and full turns (90°, 180°, 270° and 360°); measuring in degrees with a protractor; the angle between a clock’s hands; adding angles that share a side; and the corners of triangles and rectangles.
Every card is a little story: “At 3:00, the clock’s hands point at 12 and 3. What angle do they make?” Each topic has its own world and a big seek-and-find picture to explore.
8 topics
Your path through this unit
Step 1 of 2
Initial review
Take a first look at each topic and tick Got it once you have the general idea.