2 pages. Lesson asks students to identify Acute, Obtuse and Right angles.Lesson was successful with my 4th grade students.This can either be used as a morning warm-up, math warm-up, homework, in-class practice or quiz. If you like these worksheets, I also recommend the following: Elementary Geometry: Angles, Shapes and Parallel Lines I (FREE)Elementary Geometry: Angles, Shapes and Parallel Lines II (FREE)Elementary Geometry: Drawing Lines, Line Segments and Rays (FREE)Elementary Geometry: Lines