The STEM in the Gym™ Electricity & Magnetism Demonstration Board is for demonstrating different kinds of circuitry. Connect the generator or battery pack to the power switch section of the board, and from there, the wiring can go to three different sections: parallel circuits with lights, series circuits with lights, and a section showing electricity transferred to a buzzer, electromagnet, and motor disc. Each section of the board demonstrates a different electrical concept for students to learn.