The Trigonometry and Pre-Calculus Tutor is the easiest way to improve your grades in Trig and Pre-Calculus! How does a baby learn to speak? By being immersed in everyday conversation. What is the best way to learn Trig and Pre-Calculus? By being immersed in it! During this course the instructor will work out hundreds of examples with each step fully narrated so no one gets lost! Most other DVDs on Trig and Pre-Calculus are 2 hours in length. This DVD set is over double the running time and costs much less! See why thousands have discovered that the easiest way to learn Trig and Pre-Calculus is to learn by examples!