In this lesson, students will learn what voltage, resistance, and current are, how they are measured, and how they relate to each other. For accelerated classes, you may even introduce “Ohm’s Law,” which allows students to calculate the current given voltage and resistance. First, a brief reading will introduce them to the concepts and vocabulary. Then, they will use an interactive computer simulation to build a circuit, adjust its parameters, and analyze the results. Included in the lesson is