The Model SC-500R is an in-depth exploration of the electronic components included with the SC-500 Snap Circuits Pro. Ideal for use in home schooling, middle schools and high schools, where students will grasp the basic principles of electronics. The SC-500 Student Guide for the SC-500R includes 112 pages of educational curriculum. Written with the help of educators, the SG-500 is essential in covering all topics related to electricity and electronics being taught in middle schools and above. Includes real world applications and problem solving quizzes. The TG-500 optional Teachers PAK includes two project books, teacher guide, and student guide. The teacher guide is meant to prepare educators for proper introduction of Snap Circuits and guide them through each chapter with quizzes for students to test their knowledge. Topics Covered: Resistors Capacitors Transistors Motors Integrated Circuits Switches Series Circuits Parallel Circuits Batteries Relays Transformers Digital Recording 7-segment Displays SCRs Analog Meters Diodes FM Radio Comes with Three project books, student guide and teacher guide. Custom Storage Case Each SC-500R comes with a lightweight, durable case with custom foam inserts to store all Snap Circuit parts. Easy to identify missing components. Requires 4 AA batteries, sold separately.