This manual was developed to provide guidance to individuals working in Project SOAR (Stress on Analytical Reasoning), a pre-freshman summer program for science majors anticipating matriculation at Xavier University of Louisiana. Following an overview of Xavier University and Project SOAR and an outline of general instructions, specific instructions are provided for Piagetian-based laboratory experiments, computer programming, cognitive therapy, vocabulary, and quiz bowl competitions. A general description, materials needed, and comments on exploration/invention/application are provided for each of the 20 SOAR experiments, organized as learning cycles. The experiments (five each from biology, chemistry, physics, and mathematics) were developed to stress five major problem-solving components (Piagetian formal operations): control of variables, proportional reasoning, combinatorial reasoning, probability, and recognizing correlations between variables. Schedules, general comments, and instructional strategies for instructors and group leaders are provided for computing programming, cognitive therapy, vocabulary-building sessions, and quiz bowl competitions (designed as a motivational strategy). (Author/JN)