First Grade Design Problem

First grade has completed their final Project Lead the Way module, Light and Sound this week. Students used the design process to sketch, build, test and reflect on a device that uses light and sound to communicate over a distance. Students worked in small groups to solve the design problem by creating a device that could communicate over a distance (across the classroom) using light and sound. They could only use two plastic cups, a metal water bottle, bandana, string, tape, mirror and flashlight in their design. Each group got a chance to evaluate and present their design to see if the light could reach the ceiling and sound could be heard across the classroom by the rest of the class. Students then finished the design process by explaining the strengths and weaknesses of their designs.