13.5.5 Converting Degrees, Minutes, and Seconds
Core ideaLike telling time, every 60 carries over to 1: 60″=1′ and 60′=1°, and that rate is all you need to convert between big and small angles.
Module goal. Recognize an angle as the opening between two rays, learn to describe its size with measurement and units, and broaden the view from length to angle.