The Tricky Tree House

3rd GradeCommon Core

3.MD.6

Building a Tree House

Watch a video of a tree house being built.

http://www.youtube.com/watch?v=YLiy4ixXBp8

Real Tree Houses That People Live In!

• http://realestate.msn.com/11-amazing-treehouses

Tricky Tree House

Juan and Jeremy were out of school for summer vacation and received permission from their parents to build a tree house in Juan’s backyard. Jeremy’s Uncle Mack donated materials for the tree house. The tree is large enough to fit a 58 sq. foot floor in the tree house. Each boy needs to design a tree house that has an area that is exactly 58 sq. feet. Uncle Mack will choose his favorite design that they will build together.

Facts

What we know: What info is missing?

Early Finishers• Explain….. Are you sure there isn’t another

way?

• What if the tree house had the area of 78 sq. feet? What could it look like?

• What could the height of the tree house be?

• How would the shape be changed if there was a tree stump in the middle of the tree house?

• What would the tree house look like if the area was 86 sq. feet but was a two story structure? What would the height be?

Assessment

• Show a picture of the possible floor plans on graph paper.

• Include a short written explanation on how you designed your tree house.