Previous studies have shown that many preservice science teachers lack facility
withthoseformalreasoningpattemsthatarenecessaryforconductingscientific
investigations. This study indicates that a limited educational intervention
using carefully designed instructional materials can be successful inimproving
preservice science teachers'scientific thinking. It is anticipated that the students
teachers' improved facility with formal reasoning will enhance both their
learning of science concepts and process skills and make them more effective
classroom teachers.