Students’ sketches of quadrilateral constructions convey much information about the students’ understanding of quadrilateral properties and how those properties drive sound constructions. But how do you document the decisions, missteps, and self-corrections that are lost in the final sketch? Make screen-capture movies of the construction process!

Presentation Format: 6-8 Session
Grade Band Audience: 9 to 12, 6 to 8
Attribute: Learn <-> Reflect strand presentation