This project focused on encouraging instructors at large universities to take advantage of the curricular materials and computer tools developed for two related programs funded originally by FIPSE. In particular, it involved reworking and integrating materials developed for the previously funded Workshop Physics and Tools for Scientific Thinking projects so they could be used more flexibly in large university settings. Both the Workshop Physics Activity Guide and the Tools for Scientific Thinking laboratory materials with instructor guides were revised and enhanced. Prototype interactive lecture demonstration materials were developed and tested, new conceptual examinations were developed for project evaluation, and the microcomputer-based laboratory software and hardware offerings were extended and enhanced. MBL and spreadsheet software tools were developed to allow students to undertake more sophisticated data analysis and do mathematical modeling. These new materials were tested, and student learning gains were assessed at a number of institutions. The project directors did extensive dissemination through public talks, teacher workshops, and on-site consultation. Appendixes include: "A New Mechanics Case Study" (P. Laws); "Using Large-Scale Classroom Research To Study Student Conceptual Learning in Mechanics and To Develop New Approaches to Learning" (R. Thornton); a Vernier Software brochure; "Engaging Students with Interactive, Microcomputer-Based Demonstrations" (R. Thornton and D. Sokoloff); Tools for Scientific Thinking question sheets; a list of talks given; and additional grants information.