Exposing students to the application of math and science through a design-based activity can make them more technologically literate and teach integration between the STEM disciplines at an early age. This article discusses an activity that originated as a portion of a green residential house project conducted by the authors with their high school level students. The windmill portion was specifically targeted and broken down by the authors to work with elementary school students studying alternative energy at Kipps Elementary School in Blacksburg, VA. This activity can be completed at the upper elementary level as students enter Piaget's concrete operational stage and possess the fine motor skills to complement their logical thinking. This activity shows that teachers at any level, but specifically Grades 3-6, can be innovative in adapting lessons to promote technological literacy.