Grade / Class: Freshman 2000 Date: September 17. 2000

Lesson Plan Outline

Topic: Freshman Orientation for Exploratory

Objectives (Student should be able to:)

• Understand and apply the safety rules of the shop
• Read and understand the six inch ruler
• Convert fraction dimensions to decimal using the conversion chart
• Use and read the 0-1" micromete

Introduction (Motivation of students)

• Why is safety so important in the shop and in life?
• Why is it necessary to be able to read a ruler in this trade?

1. Use for general measuring
2. Use for cutting stock to length
3. Why is it necessary to be able to use a micrometer in this trade?
4. Manufacture parts to correct size
5. Inspect part for correct size

Presentation (Teaching points)

• Safety

1. Handout safety rules for the Machine shop
2. Review each item one by one using various examples to emphasize different points. Students will sign and hand in safety rules acknowledging that they have been made aware of the specific safety pointers for the shop.
3. Handout safety quiz and after sufficient time review answers with students.

• Ruler

1. Review the machinist ruler i.e.. 4R Rule which has 1/8. 1/16. 1/32, and 1/64 edges
2. Pass out the practice sheets with problems
3. Point out the illustration has edges of 1/16 and 1/32
4. Hand out decimal equivalent chart and explain use
5. Review practice sheet with students and let them self grade their work

• Micrometer

1. Pass out micrometers. demonstrate parts of the micrometer inc., frame, barrel, spindle and thimble. Point out the scale on the barrel.
2. Using the board sketch describe the scale on the barrel and describe what the various lines and numbers mean and the function they serve.
3. Using the overhead projector and the adjustable overhead slide demonstrate and require student participation in the reading of the illustration
4. Pass out the micrometer practice sheet. After allowing sufficient time for completion review results with students giving additional reinforcement as necessary.

Lathe Demonstration

• With students gathered around a South Bend lathe point out and explain the following:

1. Bed
2. Headstock
3. Carriage
4. Cross slide
5. Tool Holder and Tool Post
6. Feed engagement
7. Lathe safety measures such as chuck wrench, focus on work etc.

Step Pin

• Hand out drawing for step pin

1. Explain requirements for the job
2. Handout material fur the project
3. Before going to shop make certain that every student has GLASSES and SHOES

Second Day: Nail Set

1. Hand out drawings at start of second day and go over sequence of machining. Use board as necessary to illustrate points

Third Day: Completion

1. Continue as necessary to completion of all nail sets

Application & Feedback (How student will practice content presented)

Students will make a step pin and nail set under constant direct supervision. These projects will give the student the opportunity to gain confidence operating the lathe and will show if they have paid attention and gained understanding of the class room lecture. Additional instruction may be necessary at the machine to reinforce the class room lecture.

Assignments (To do for next class)

Evaluation (How to measure attainment of lesson objectives)

• Ruler quiz
• Micrometer practice sheet
• Quality of step pin project (were all or most of the target dimensions achieved)
• Quality of the step pin project (dimensions, finish, appearance)

Teaching Aids:

• Chalkboard
• Overhead projector
• Overhead slides
• South Bend lathe