This on-line course engages students in sequential scientific discussion activities that will increase your competence in (1) problem-solving process skills in engineering and robotics and (2) planning, teaching, and evaluating the effectiveness of science lessons for children in the elementary school setting. The course is designed on a competency-based, mastery model. Throughout the course, students practice using logic, cognitive processing skills, and strategies from recently developed activity based K-8 science curricula including strategies for enriching a more conventional, textbook-oriented curriculum.