(Prerequisites, GB 303 and PS 115, and admission to Elementary Block 1.) A partially self paced course that includes a sequence of laboratory activities that will increase prospective teacher's competence in (l) a sequence of problem solving skills in science, and (2) planning, teaching, and evaluating the effectiveness of science lessons for children in a classroom observation/ participation setting. Students have access to materials and equipment from recently developed science curricula, plus a wide variety of materials and strategies for enriching a more conventional, textbook oriented elementary science program.