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About Us
Meet the Robertson Team
Contact
Publications
Inquiry
Math
Math Lessons
Early Years
Primary
Junior/Intermediate
Monthly Math Challenge
Exploring Math through Inquiry
Family Math Nights
Online Playful Math
Learning at Home
Science
Science Inquiry
Early Years
Primary
Junior/Intermediate
Outdoor Education
Blog
eNewsletter
Donate!
Junior/Intermediate Math – Geometry and Spatial Sense
Number Sense
Geometry and Spatial Sense
Data Management
Measurement
Patterning and Algebra
All Lessons
Pythagorean Theorem
Pythagorean Theorem
In these series of investigations, students explore and deepen their understanding of the Pythagorean Theorem.