An extended replacement of the author's "Techniques of Technical Training," this is a practical guide to classroom methods including grading and assessment of results, and a critical survey of all aids available to teachers. The text deals with the background to training, lesson preparation, lesson presentation, the classroom environment, knowledge assimilation, assessment process, learning curves and other experimental results, methods of instruction, and use of audiovisual aids. Seven stages in teaching a technical subject are presented; knowledge of general and specific objectives, preparation, presentation, reception by students, assimilation, assessment, and feedback. Included in the appendix is an example of a multiple choice test with explanatory answers, suggestions for further reading, and an alphabetical index. (pt)