Project IMPACT is a locally-initiated, federally-funded attempt to encourage creativity in elementary and secondary classrooms. From a start with nine school districts, it had been extended by its third year to nearly 60 school districts in nine counties. This report covers a one-year inservice program culminating in a 5-week teach-and-study institute. Its major goals were to help teachers examine the many variables which influence the humaneness of the classroom, and to investigate with teachers the research and literature which seem to be helpful in bringing into focus the teacher's role in encouraging productive thinking. The document contains the following chapters: 1) introduction--educating 21st century man; 2) the program--IMPACT's schedule of inservice training; 3) the stimulus--theories IMPACT teachers examine, behavioral objectives, discovery learning, simulation and media, productive thinking, effective questioning; 4) communication is the process; 5) response--how teachers apply IMPACT's theories, with selected reports from each of the teams; 6) the measurement--research findings giving evaluations of the project in relation to creativity in the classroom, self-concept of the teacher and self-concept of the student. The evaluation shows that IMPACT is influencing the thinking processes taking place in classrooms, with the possible result of more creative men and women as products of the education system. (See ED 033 906 for 1969 annual evaluation report.) (MBM)