Moulder and Lathe Machine Practical for SS 3

Class: SS 3
Term: First Term
Week: 5
Age: 14 years
Duration: 45 minutes
Subject: Machine Wood Work
Previous Lesson: Router and Spindle Moulder, Parts and Uses
Topic: Wood work machines: Parts and uses of the moulder and lathe machine
Subject Matter: lathe machine

Specific Objectives

By the end of the lesson, pupils/students should be able to:

Cognitive Domain

• Identify and name the major parts of a lathe machine.
• Explain the functions of the main parts of a lathe machine.
• Describe the various uses of the lathe machine in woodworking.

Psychomotor Domain

• Demonstrate the basic steps for operating a lathe machine safely.
• Carry out simple maintenance procedures on the lathe machine.

Affective Domain

• Appreciate the importance of safety precautions when using the lathe machine.
• Value the necessity of proper maintenance for woodworking machines.

Reference Materials

The following resources were used in planning this lesson:

• 2025 Revised 9 Years Basic Education Curriculum
• Relevant State Unified Scheme of Work
• Woodwork Technology for Senior Secondary Schools
• The HeadTeacher Scheme of work

Instructional Materials

The teacher will teach this lesson with the aid of:

• A functional lathe machine (if available)
• Diagrams or charts showing the parts of a lathe machine
• Various woodworking projects (e.g., turned table legs, bowls) made on a lathe
• Safety goggles, face shield, and other personal protective equipment (PPE)
• Maintenance tools (e.g., wrenches, oil can, cleaning rags)

Rationale for the Lesson

This lesson is important for students to gain practical knowledge and skills in operating and maintaining the lathe machine, a fundamental woodworking tool. Understanding its parts, uses, and safety procedures ensures efficient and safe work practices in machine woodworking. It also prepares students for advanced woodworking tasks and potential careers in carpentry or furniture making.

Prerequisite/Previous Knowledge

Students should have basic knowledge of woodworking tools and general workshop safety rules.

Lesson Content/Board Summary

Wood work machines: Parts and uses of the moulder and lathe machine

Parts of the Lathe Machine

The main parts of a lathe machine include:

1. Headstock: Houses the main spindle, which rotates the workpiece.
2. Tailstock: Supports the other end of the workpiece, often containing a live or dead center.
3. Bed: The main frame that supports all other components and ensures alignment.
4. Carriage: Moves along the bed, carrying the tool rest.
5. Tool Rest: Provides support for the cutting tools during operation.
6. Spindle: The rotating shaft in the headstock that holds the workpiece.
7. Motor: Provides power to rotate the spindle.
8. Speed Control: Adjusts the rotational speed of the spindle.
9. Workpiece: The material being turned or shaped.

Uses of the Lathe Machine

The lathe machine is used for various operations in woodworking, including:

1. Turning: Shaping wood into cylindrical or other symmetrical forms.
2. Facing: Creating flat surfaces on the ends of a workpiece.
3. Boring: Enlarging existing holes or creating new ones.
4. Drilling: Making holes along the axis of the workpiece.
5. Sanding: Smoothing the surface of the turned workpiece.
6. Polishing: Finishing the workpiece to a smooth, shiny surface.

Basic Operation of the Lathe Machine

Operating a lathe involves several steps and safety considerations:

1. Workpiece Mounting: Securely mount the wood between the headstock and tailstock.
2. Tool Selection: Choose appropriate turning tools for the desired shape.
3. Tool Rest Positioning: Position the tool rest close to the workpiece, slightly below its center.
4. Speed Setting: Select the correct spindle speed based on wood type and diameter.
5. Cutting: Apply the cutting tool gradually and smoothly, moving it along the workpiece.
6. Safety: Always wear safety goggles or a face shield. Ensure loose clothing and hair are secured.

Maintenance of the Lathe Machine

Regular maintenance ensures the longevity and efficient operation of the lathe machine:

1. Cleaning: Remove wood dust and chips from the machine after each use.
2. Lubrication: Apply oil to moving parts (e.g., bedways, tailstock spindle) as recommended by the manufacturer.
3. Inspection: Regularly check for loose bolts, worn belts, or damaged parts.
4. Tool Sharpening: Keep turning tools sharp for effective and safe cutting.
5. Storage: Cover the machine when not in use to protect it from dust and moisture.

Teaching Methods/Instructional Techniques

Discussion, Demonstration, Guided Practice, Question and Answer, Explanation, Observation, Practical Activity

Instructional Procedures

Step 1: Introduction

Time: 5 minutes

Teaching Skill: Recalling/Engaging

Teacher’s Activity: The teacher welcomes the students and asks them to recall different types of woodworking machines they have learned about previously. The teacher then introduces the lathe machine as a key woodworking machine for shaping wood.

Pupils’ Activity: Students respond by naming various woodworking machines and listen attentively to the introduction.

Learning Point: Introduction to lathe machine

Step 2: Parts of the Lathe Machine

Time: 8 minutes

Teaching Skill: Identification/Explanation

Teacher’s Activity: The teacher displays a diagram or an actual lathe machine, pointing out and naming each major part (headstock, tailstock, bed, carriage, tool rest, spindle, motor, speed control). The teacher explains the function of each part.

Pupils’ Activity: Students observe the machine/diagram, identify the parts, and listen to the explanations of their functions.

Learning Point: Lathe machine parts identification

Step 3: Uses of the Lathe Machine

Time: 7 minutes

Teaching Skill: Explanation/Discussion

Teacher’s Activity: The teacher explains the various uses of the lathe machine in woodworking, such as turning, facing, boring, drilling, sanding, and polishing. The teacher may show examples of turned wooden items.

Pupils’ Activity: Students listen to the explanations and ask questions for clarification. They examine the examples of turned wood products.

Learning Point: Lathe machine applications

Step 4: Basic Operation and Safety

Time: 8 minutes

Teaching Skill: Demonstration/Instruction

Teacher’s Activity: The teacher demonstrates the basic steps for operating the lathe machine, including mounting a workpiece, positioning the tool rest, and setting the speed. The teacher emphasizes crucial safety precautions like wearing PPE, securing loose clothing, and maintaining a safe distance.

Pupils’ Activity: Students carefully observe the demonstration and note down the safety precautions and operational steps.

Learning Point: Safe lathe operation

Step 5: Practical Exercise on Lathe Operation

Time: 5 minutes

Teaching Skill: Guided Practice

Teacher’s Activity: The teacher guides a few students to practically demonstrate mounting a workpiece and adjusting the tool rest under strict supervision, reinforcing safety measures.

Pupils’ Activity: Selected students participate in the guided practical exercise, while others observe and provide feedback.

Learning Point: Workpiece mounting practice

Step 6: Practical Exercise on Lathe Maintenance

Time: 4 minutes

Teaching Skill: Demonstration/Application

Teacher’s Activity: The teacher demonstrates basic maintenance procedures such as cleaning the machine, lubricating moving parts, and inspecting for wear and tear. The teacher explains the importance of each step.

Pupils’ Activity: Students observe the maintenance demonstration and ask questions about proper care.

Learning Point: Lathe machine maintenance

Step 7: Evaluation/Review

Time: 5 minutes

Teaching Skill: Questioning/Assessment

Teacher’s Activity: The teacher evaluates the learning by asking the following questions:

1. Mention three major parts of the lathe machine.
2. State two uses of the lathe machine.
3. List two safety precautions to observe when using a lathe machine.
4. Describe one maintenance procedure for a lathe machine.

Pupils’ Activity: Pupils answer orally and in writing.

Learning Point: Lathe knowledge assessment

Step 8: Note-Taking

Time: 4 minutes

Teaching Skill: Guided Writing

Teacher’s Activity: The teacher guides pupils/students to copy the essential Board Summary notes on the parts, uses, operation, and maintenance of the lathe machine into their notebooks.

Pupils’ Activity: Pupils/students copy the notes carefully into their notebooks.

Learning Point: Lathe machine notes recording

Step 9: Conclusion

Time: 2 minutes

Teaching Skill: Summarizing

Teacher’s Activity: The teacher briefly summarizes the key learning points about the parts, uses, operation, and maintenance of the lathe machine, reiterating the importance of safety and proper care.

Pupils’ Activity: Students listen to the summary and prepare for the next lesson.

Learning Point: Lathe machine summary

Continuous Assessment/Further Study

Type: Homework/Project

Instruction: Answer the following questions or carry out the task:

1. Draw a well-labelled diagram of a woodworking lathe machine.
2. Research and write down five additional safety rules for operating a lathe machine.
3. Identify a simple wooden item that can be made using a lathe machine and list the steps involved.

Lesson Keywords

• Lathe machine – A machine used for shaping wood by rotating it against a cutting tool.
• Headstock – The part of the lathe that holds and rotates the workpiece.
• Tailstock – The adjustable part of the lathe that supports the free end of the workpiece.
• Tool rest – A support for the cutting tool during turning operations.
• Turning – The process of shaping wood into cylindrical forms on a lathe.
• Maintenance – The process of keeping a machine in good working condition.

Differentiation

For weaker learners, the teacher will provide simplified diagrams and focus on identifying only the most critical parts and their primary functions. Faster learners will be encouraged to research different types of lathe tools and their specific applications, or design a simple turning project.

Suggested Lesson Videos

For further understanding, students can search on YouTube for:
wood lathe machine parts and uses SS3 nigeria

Teacher Guide for Using This Lesson Plan

Before the lesson, ensure that a lathe machine (either functional or a model/diagram) is available and in good condition. Prepare any necessary safety gear and examples of turned wood items. Begin by reviewing previous knowledge of woodworking machines to set the context. During the lesson, prioritize safety demonstrations and explanations, especially during practical activities. Allow students to observe closely and ask questions. Guide students to copy the Board Summary notes accurately after the main teaching points have been covered. Emphasize the practical application of the knowledge by encouraging students to think about how these machines are used in real-world scenarios.