This student training module on physical development is one of the general work information modules developed for Pre-Apprenticeship Phase 1 Training. Rather than relating to a specific trade, this module is designed to impart to the student general health knowledge needed by all workers and can be used in all the trade module series. This module contains a cover sheet listing module title, goal, and performance indicators; introduction; information sheets on physical development and maturation; self-assessment; self-assessment answers; post assessment; and post-assessment answers for the instructor. Topics covered in the module include maturation, nutrition, exercise, personal care habits, and substance abuse, as they relate to work performance and daily life. (KC)