#### MG 40 – DESCRIBE ANGLES USING ANGLE TESTERS

Children construct and use angle testers using folded paper, and using chenille sticks and straws.

They identify angles with 2 lines as the relative slant between 2 arms that meet at a vertex.

They identify angles with 1 line as the amount of turn around a vertex.

They use angle testers to test angles with 2 lines, for example, angles in buildings.

They use angle testers to test angles with 1 line, for example, door opening, clock hand movement.

They use angle testers to identify angles that are right angles, obtuse angles and acute angles.