GMAW Shielding Gas Mix

Can your young welders select the correct shielding gas mixture for the task at hand? Introduce them to the percent calculations needed to get the job done right with a simple, yet effective, career and technology instructional activity. After working examples in a presentation, learners partner up based on the random quantity they draw to demonstrate understanding of the concepts.

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Instructional Ideas

  • Use the extra credit question as a fun, friendly competition
  • For a twist on the formative assessment, have pairs explain when they would use the mixture they created in a real-world welding situation
Classroom Considerations

  • Make sure a variety of cylinders are accessible for student examination during the formal assessment; consider numbering them to make grading easier as well!
Pros

  • Presents material in an engaging manner
  • The resource provides a good balance of collaborative and individual practice
Cons

  • None