Links to lessons and activities about recognizing functions from data points or function diagrams, grades 7-11| www.mathed.page
Henri Picciotto's lessons and games to introduce complex numbers to high school students.| www.mathed.page
Links to Henri Picciotto's geometric puzzle materials, mostly for middle school and high school| www.mathed.page
A whole book of hands-on geometry activities, using manipulatives. The labs complement traditional paper-pencil work and computer-based interactive explorations. Suitable for middle school and high school.| www.mathed.page
An introduction to a parallel axes representation of functions, with an emphasis on its educational value| www.mathed.page
Links and information about the Lab Gear, a comprehensive manipulative environment for algebra designed by Henri Picciotto.| www.mathed.page
A discussion by Henri Picciotto of the design of manipulatives for the teaching and learning of algebra. Comparison and history of four models.| www.mathed.page