First, measure the space you'll be putting the tree house in, and draw the tree house outline. Color the tree in gray.
Color over the gray in brown.
Color the leaves and cut out the shape.
Color 3 rectangles of the same size for the walls and floor. I found that colored pencil makes a nice wood grain pattern.
Color the pack of the tree house and tape on the sides and floor.
Measure the top and make a roof. Add two pieces at the ends for attaching the roof to the house.
This is how to make a basic tree house that you can adapt any way you like. For instance, I based this on Kit's tree house so I added a stained glass window (with the glassware tutorial from last week), chandelier, balcony, and basket. The chandelier didn't turn out well, so I may replace it at some point.
What are your favorite ways to beat the heat?