Security System Design
Students apply everything they have learned about light properties and laser technologies to designing, constructing, defining design limitations and presenting laser-based security systems that protect the school's mummified troll. In the associated activity, students "test their mettle" by constructing their security system using a PVC pipe frame, lasers and mirrors. In the lesson, students "go public" by creating informational presentations that explain their systems, and serve as embedded assessment, testing each student's understanding of light properties. It is important to convey to the students that part of the design challenge is to use as few lasers to patrol the largest area. By doing so this limits the overall cost of the design.