Mathematics - Geometry - Angles - Introduction to angles - Angle Spotter
Show real-world angles: an open door (obtuse), a slice of pizza (acute), a book corner (right angle), scissors opening (varies), clock hands at 3:00 (right angle). The student clicks each and classifies: 'acute', 'right', or 'obtuse'. 6 items. Build the intuition that angles are about the AMOUNT of
