This instructor's guide accompanies the self-paced student training modules on welding, three of which are available separately as CE 032 889-891. Introductory materials include a description of the components of the pre-apprenticeship project, a discussion of the teacher's role in conducting the course, and scope and contents of the four phases of training. The guide contains 12 units organized according to this format: title; instructional outcomes; introduction; and presentation, including a teaching outline of the unit and teaching methods and aids referenced to student modules. Job sheets and drawings are provided as needed. Topics covered in the units include the following: introduction to the welding trade, diagnostic testing for welders, survival skills for welding, trade mathematics, physical requirements for welding, safety, first aid, blueprint reading, equipment for welding, welding processes, and a welding project. An appendix contains an occupational analysis (task inventory) of the welding trade. (KC)