This video uses a real world scenario to as we talk about construction triangles. We will begin to solve the problem: How can I construct an emergency shelter from a tarp, cord, and some branches?

Originally released by Apperson, 2013. Streaming video file encoded with permission for digital streaming by Infobase on April 30, 2015.

What We Know vs. What We Need to Know (4:11); --What Structure Can I Build Given my Limited Supplies? (6:12); -- If I Can Set Up Two Branches With a Certain Angle, Will the Third One Fit? (5:03); -- How Do I Know Whether This is the Best Shape for These Branches? (3:16); -- Solving the Big Question (4:01); .