Text, illustrations, and exercises are utilized in this set of four learning modules to instruct medical technology students in a variety of job-related skills. The first module, "EEG Technology: Measurement Technique of the 'International 10-20 System'" by Dorothea Brittenham, describes a procedure used by electroencephalograph technicians to locate positions on the patient's scalp where electrodes should be placed. The second module, "Low-Frequency Filtering on the EEG" by Edith McTiernan, details the operation and effects of low-frequency filters on electroencephalographs. The third module, "Right Lateral Decubitus Position--What View Is It?" by Mary G. Watts, teaches radiologic technology students to interpret and recognize gall bladder X-rays taken with the patient lying on his/her right side. The fourth module, "Close-Up Photography Using Extension Tubes" by Stephen K. Peltz, instructs biomedical photography students in securing extension tubes to single lens reflex cameras and in calculating exposure in close-up photography. Each of the illustrated modules provides sequential reinforcement exercises, describes procedures, and concludes with a post-test and an accompanying answer key. The modules are designed to be completed in a specified amount of time ranging from 20 to 30 minutes each. (JP)