Abstract: The invention distinguishes between two aspects of learning the technique of cardio-pulmonary resuscitation. One aspect is in learning what CPR feels like. The other is in learning the sequence of actions, times, rates, etc. It is the latter aspect that is more easily forgotten, and the invention provides a very inexpensive aid, which has the simplest possible mouth and chest simulators. The student can carry out a periodic repetition of the routine of motions on the aid. Refresher courses are then not needed so often, and the courses can concentrate on the "feel" aspects of CPR rather than the "routine" aspects. A simple and inexpensive teaching and practice aid for CPR is provided which has a stand on which a piece of foam material is mounted, and a generally self-supporting tube which has an upwardly facing open end. The other end of the tube is connected to a balloon. The structure and action of the device more or less replicates the physiology of a person in cardio-pulmonary arrest.