The Physics 2 Tutor: Learning by Example DVD series covers thermodynamics, oscillations & waves in physics through step-by-step example problems. Emphasis is placed on giving students confidence in their skills by gradual repetition so that the skills learned are committed to long term memory. Lessons cover standing waves and resonance, including how waves can be made to reflect off of an object and interfere in the opposite direction to the original wave, leading to a standing wave. Grades 9-12. 52 minutes on DVD.