This Set Of Four Activities Investigates How Light Is Used In Technology Products. Each Activity Has Deep Content And Unique Materials So Users Can Explore Science Concepts Using Stem Methodology. This set of four activities investigates how light is used in technology products. Each activity has deep content and unique materials so users can explore science concepts using STEM methodology. Pack Sets, designed for use by an entire class, include 10 sets of hands-on materials for one activity and a DVD with extensive content for all four activities. The DVD contains: ? Teacher and Student Guides ? Background Information ? Powerpoints and Videos ? Glossary ? Worksheets Individual Exploration Packs without the DVD are also available - these contain printed instruction sheets highlighting one model experiment. The Exploration Pack Set includes all four individual hands-on Exploration Packs and the DVD.