Space modules and geodescic domes

We are about to go of to space and build our own space modules.  Modules have to be made of simple light weight materials that are easy to build.  NASA is planning to build a space station using modules that will be joined together. Our space module will need 10 triangles and 6 pentagons.  The designer Buckminster Fuller found out that simple shapes can be used for making large strong domes.

This module will be built of two shapes shown below: Sides of the pentagon will be 20 inches. Sides of the inner equilateral triangle will be 20 inches.

Form groups of 5 and make your templates!