Building a Triangular Treehouse
This is one lesson in a larger Unit Plan that introduces triangular relationships through the lens of building a treehouse with a variety of triangular characteristics. It has proofs, real world problems, constructions, a unit project, assessments, and more. In Lesson 20, “Am I Finished Yet?", students have used the conditions that make triangles congruent including SSS, AAA, SAS, ASA, AAS, and SSA, along with the conditions for similarity, SSS and SAS, to complete the scale drawing and model of a triangluar treehouse. In addition they have used area formulas to figure the amount of actual materials needed to construct the the real world treehouse. A rubric is featured to grade the final project and all work. The entire unit plan can be found here.
This lesson is part of the Unit Project. The project is group work, so it is easy to include differentiation. This is the truly hands-on part of the project as students finish their scale drawings and calculate materials. The rest of the project is found in lessons 3, 5, 8, 11,15, & 19.
