The following investigations are designed to help you discover certain theorems related to circles. These investigations assume a working knowledge of Geometer Sketchpad 4.0 and familiarity with basic terminology associated with circles (secants, tangents, chords, etc.).
Day 1: Chords and Radii
Day 2: Tangents
Day 3: Arcs
Day 4: Inscribed Angles
Day 5: Incribed Angles (part 2)
Day 6: Chord Relationships
Day 7: Relationships of lines and circles
Day 8: Relationships of lines and circles (part 2)
Day 9: Constructions
Day 10: Constructions (part 2)