Eighty-eight classroom activities for use in introductory psychology courses at the secondary and college levels are described. Only a few of the activities require specialized laboratory equipment. Most do not. The activities are organized by the following areas: methodology, sensory processes and perception, learning and conditioning, memory and cognition, developmental psychology, social psychology, personality, and miscellaneous. For each activity there is a discussion of major concepts, materials needed, teacher instructions, the major emphasis of classroom discussion, and suggested background readings. Several appendices should be useful to instructors. Appendix A provides a quick reminder on basic statistical methods for teachers wanting to include data collection in some activities. Appendix B "A Bibliography on Do It Yourself Laboratory and Classroom Apparatus" will aid those teachers who wish to build simple apparatus for classroom demonstrations and experiments. Appendix C is an annotated bibliography of additional activities and demonstrations for classroom use. The concluding appendix is a selected bibliography of ethical principles and guidelines for the teaching of psychology. (Author/RM)