This program covers the important topic of superposition and interference of waves in Physics. We begin by discussing two or more waves can interact by adding the amplitudes of the waves together. This is known as superposition of waves. The entire lesson is taught by working example problems beginning with the easier ones and gradually progressing to the harder problems. Emphasis is placed on giving students confidence in their skills by gradual repetition so that the skills learned in this section are committed to long term memory.