Instructional Unit:  Circles


Day 1: Circles


Day 2: Arcs of Circles


Day 3: Chords of Circles


Day 4: Inscribed Angles


Day 5: Inscribed Polygons


Day 6: Angles formed by Tangents and Chords


Day 7: Lines Intersecting a Circle


Day 8: Lengths of Segments and Chords


Day 9:  Segments of Tangents and Secants


Day 10: Equations of Circles, Circumference, and Area







Boswell, Larson, and Stiff. Geometry. Evanston, IL: McDougal Littell, 2001.

Geometry Concepts and Applications. Columbus, OH: Glencoe/McGraw Hill, 2001. 1998. 01 Apr. 2005 <>.