The Pilates Center Complete Formal Lecture Series: Phase 1 - 4 (Weekend I - IV). Amy Taylor Alpers and Rachel Taylor Segel teach the Formal Lecture Series online. In this series, Amy and Rachel not only teach the exercises but explain to attendees the "how's and why's" of the exercises as well as how to teach and modify the exercises. These Formal Lecture Series have been offered since 1991 and are a part of all of our teacher training programs. Amy and Rachel teach all exercises from intermediate to intermediate/ advanced on all apparatus: Mat, Reformer, Chair, Cadillac, Barrels, and Miscellaneous Exercises. Assess is for 90 days, these videos are not downloadable.