Tapping Steel Sample Lab Lesson

Tapping Steel Sample Lab Lesson - Teacher Name: McGregor...

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McGregor – Sample Laboratory Lesson Lesson Title : Tapping Threads in a Hole Drilled in Steel (Lab Lesson) Unit Title : Cold Metal Working Skills Lesson Purpose/Goal : The purpose of this lesson is to allow students to develop the skill of tapping a drilled hole in steel. Time : 1 hour Instructional Objectives : (Students…) 1. Reference a tap/drill chart and select an appropriate twist drill size for threat type and hole size; 2. Mark and drill steel with a drill press; 3. Set-up and utilize an appropriate size tap and thread type for a drilled hole; and 4. Self-Demonstrate and Evaluate the process of tapping a drilled hole in steel by another student. TEKS : TAKS : LifeKnowledge Precept : (If Applicable) Materials/Supplies Needed : Tap/Thread/Drill Size Chart Tap/Thread/Drill Size Chart Worksheet (Attached) Drill press, punch, hammer, lubricant, twist drills Number/Letter Punches 3” x 1/8” x 5” Steel Flat (one for each student) References : None Global Contextual Set : (1. Where we have been; 2. Where we are going & why; 3. What we are doing today; 4. How learners should conduct themselves) 1. Working on various cold metal skills 2. Working toward the utilization of hot metal skills and project construction 3. Tapping holes drilled in steel 4. Work safely, diligently and independently Focus/Interest Approach/Anticipatory Set : (Captures attention and focuses students’ thinking through physical/cognitive engagement. Principle – Experience before label .) Teacher takes a bolt and several different nuts that are of the wrong size. Prompt students to tell you to make a nut using a piece of steel. Use questioning to lead them to the answer. Lesson Content: Objective 1 : (Reference a tap/drill chart and select an appropriate twist drill size for threat type and hole size) Teaching Method : Method Demonstration (Include all content, activities, directions, scripting, etc. below. Use as much space as needed) Steps: o o Find bolt size and thread type on chart (tap size) o Cross-reference twist drill size from tap size Preview, Do, Review Have three students practice Notes : Remember worksheet copies Checking for Understanding : Worksheet with 5 tap sizes. Have students complete immediately.
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Tapping Steel Sample Lab Lesson - Teacher Name: McGregor...

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