The best Water Safety Instructors (WSI) start out as Water Safety Aides (WSA). This course is designed for teens who have passed Level 6 and may be interested in working at an aquatic facility as a WSA and eventually add the certification to become a WSI. Students will be asked to practice-teach with a WSI to see firsthand how to teach a swimming class from start to finish. Turtles, Bobbers, Little Swimmers and Levels 1-3 are the classes available for WSA's practice-teaching part of the class.