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 entropy in Physics, including how entropy is a measure of the disorder of a system and that all natural processes tend to increase disorder. Grades 9-12. 73 minutes on DVD.