Back to Chalkboard Teach Lesson 01 – What Is a Structure? View Activity Lesson 02 – Natural Structures View Activity Lesson 03 – Unusual Bird Homes View Activity Lesson 04 – Strength and Stability View Activity Lesson 05 – Choosing Materials View Activity Lesson 06 – Experiment: Make a Paper Bridge View Activity Lesson 07 – Experiment: Centre of Gravity View Activity Lesson 08 – Centre of Gravity in Structures View Activity Lesson 09 – Tension and Compression View Activity Lesson 10 – Building a Roof View Activity Lesson 11 – Condo Buildings and Apartment Buildings View Activity Lesson 12 – Covered Bridges View Activity Lesson 13 – The Eiffel Tower View Activity Lesson 14 – Pyramids of Ancient Egypt View Activity
