This curriculum guide is designed to help teachers conduct a course that provides senior high school students with the opportunity for in-depth exploration in the field of welding. The course provides students with experiences related to the design, theory, and use of welding systems. The first part of the guide contains such information as course description, target grade levels, general program goals, specific objectives, course flowchart, time frame, and a course outline. Nine teaching guides cover the following units: introduction to welding; safety; identification of metals; oxygen fuel gas welding; oxygen fuel gas cutting; shielded metal arc welding; gas tungsten arc welding; gas metal arc welding; and special projects. Each unit consists of an introduction; competencies; general performance goals/objectives; specific performance objectives and mastery of criteria; methodology; suggested interest approaches; unit outline coordinating subject matter areas and learning activities; unit test; test key; evaluation and testing suggestions; equipment and supplies list; bulletin board ideas; and references. A bibliography lists 22 references and gives names and addresses of sources of equipment and supplies, journals, audiovisuals/computer software, curriculum labs, professional associations, and the Louisiana State Office of Vocational Education. (KC)