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Lesson Plan Industry Sector
Agriculture & Natural Resources

Lesson Plan Originally Created By: Mike Mederos

Arc Welding Techniques- Mike Mederos

Part of Unit: Electric Arc Welding Processes

Lesson Plan Overview / Details

This is the introductory lesson in a welding skills class or Ag Mechanics course.  I use this lesson to familiarize students with terminology and techniques, we will use during weld applications.  I have also included the Welding Skill sheet, I use in my course.  All students must complete these welds before moving on to construction of projects. 

Lesson Time

Instructional Time
2 Hours

Standards

California Career and Technical Education Standards

California Academic Content Standards (Reinforced)

Objectives and Goals

  • Each student will earn the different techniques involved in the Shielded Metal Arc Welding Process
  • Each student will strike and maintain an arc sufficient enough to lay down stringer beads.
  • Each student will complete 5 stringer beads.
  • Each student will understand the importance of applying the proper settings to an arc welding machine prior to using it.
  • Each students will understand how to properly clean and prepare a weld for evaluation.

Activities in this Lesson

  • Get ready to weld! - Hooks / Set

    Since this is the first lesson, where we are out in the shop welding, I try to ease some of my students anxiety about welding.  I start off by announcing the day's activities and reassure them that they can weld.   I show them the video "The World's Youngest Welder", afterwards I continue to reassure them that anybody can weld, as demonstrated by a 5-year old boy.  I will transition into today's lesson by explaining  to them that welding is a skill, like anything thing else, if you want to be good you have to practice and master the techniques.

  • I use this powerpoint, to introduce the students to the concept of welding techniques prior to going into the shop.  This is one of the first lessons I use right after the safety unit with my welding students.  In addition, to this powerpoint, I have welding rod, welder and other materials to use in demonstrating the main point of this lesson.  I do not actually strike an arc in my classroom, but the welder is important during the lecture portion, to stress key points.  As I demonstrate the different techniques, I also have my students mimic them by gripping the end of their pencils and writing to get use to how an electrode holder with an electrode will feel in their hands when they begin to weld.  I have also given the students the required welds they will have to pass in order complete the course.  I have included that sheet with this lesson as well.  When a student has completed a weld to my satisfaction, I will sign off that particular weld and the students can move on to the next weld in the series. 

    • Welding Techniques Power Point [ Download ] Power Point for Welding Techniques
    • Welding Techniques Handout [ Download ] Handout that corresponds with Welding Techniques Power Point notes
    • Welding Skill Template [ Download ] Welding Skill Template Worksheet
  • Stringer Bead Demonstration - Demo / Modeling

    Moving out into the shop is the next step.  This is where I demonstrate how to strike an arc, maintain an arc, and lay down stringer bead.  After which, I show the students how to clean the weld and present it for inspection.  The following steps are demonstrated and highlighted:

    1) Rod selection and how to read the welder setting poster.

    2) Properly setting up the machine to weld.

    3) Proper attire (Review)

    4) Striking and maintaining an arc.

    5) Weld technique

    6) Properly cooling and cleaning of the weld.

    7) Reassure students that they can do this!

  • Stringer Beads - Lab / Shop

    Students will now reflect  upon what they have learned and apply that to actually laying down some stringer beads.  During this section of the lesson, I have each student complete 5 stringer beads.  As they bring each bead up to me for inspection, I show them how to evaluate the weld.  I have several welding charts in my shop from Lincoln Electric and Miller Electric that provides examples of weld beads and common flaws.  After a few examples, I will ask my students to evaluate their own welds and assess their progress. 

  • Closure - Closure

    After we have cleaned up the shop and returned to the classroom, I will ask students to reflect upon their expereience welding for the first time.  I ask for a few volunteers to share their experiences and ask some questions of others.  I will also pick a few students' projects to highlight the growth made from their first bead to their last.  I show students that by practicing and working hard that improvement is made each class period to demonstrate that it is important they are here each period and work their hardest. 

Assessment

Assessment Types:
Projects,

During this section of the lesson, I have each student complete 5 stringer beads.  As they bring each bead up to me for inspection, I show them how to evaluate the weld.  I have several welding charts in my shop from Lincoln Electric and Miller Electric that provides examples of weld beads and common flaws.  After a few examples, I will ask my students to evaluate their own welds and assess their progress.