Triangles

Triangles with Millie and her kitten Biscuit, at a grade 4 level: naming a triangle by its angles (acute, right or obtuse) and by its sides (equilateral, isosceles or scalene), giving one triangle both names, finding a missing angle when all 3 add up to 180°, and the perimeter of a triangle.

Every card is a little story: “Octavia’s sail has one square corner of exactly 90°. What kind of triangle is it?” Each idea has its own world, from the Sprinkle Bakery to the Star Tower, and a big seek-and-find picture to explore.