How to play Angle Turn

  1. Choose a level, then press Start game.
  2. Drag the blue arm round the protractor, or use the arrow keys, to make the angle asked for.
  3. Press Check. A dashed arm shows where the target was.
  4. On Name it, an angle is drawn: tap acute, right, obtuse, straight or reflex.
  5. A game is ten angles.

For parents and teachers

An angle is an amount of turn, which is why the first level asks for quarter and half turns before any degrees. Reading a protractor means counting along the right scale from the right zero, so encourage your child to start from the fixed arm each time. Estimating before measuring builds a feel for size: 30 degrees is a thin slice, 120 is wider than a right angle.