Why do students "forget" to line up an object with the zero mark on the ruler? Simply reminding students does not deal with the basic conceptual problem. Explore content, pedagogy, and diagnostics that guide teachers in building a strong foundation for using calibrated scales like rulers, protractors, measuring jugs, and more.

Presentation Format: 3-5 Session
Grade Band Audience: 6 to 8, 3 to 5