Class: Senior Secondary School 1 (SS1 / SSS 1)
Term: 1st Term
Week: 11
Age: 15 years
Duration: 45 minutes
Subject: Radio, Tv & Electronics
Curriculum Theme: Trade
Previous Lesson: Electronic Components: Values And Ratings Using Color Codes.
Topic: ELECTRONIC HAND TOOLS
Subject Matter: Types of hand tools, Screw drivers, Diagonal cutters, Soldering gun, Soldering iron, Lead sucker, Pocket knife, Stripper, Soldering wick

Specific Objectives

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

Cognitive Domain:

Define electronic hand tools.
List at least five types of electronic hand tools.
State the uses of various electronic hand tools like screwdrivers, diagonal cutters, and soldering tools.

Affective Domain:

Appreciate the importance of using the correct tools for electronic work.
Value safety precautions when handling electronic hand tools.
Show interest in learning how to use electronic hand tools properly.

Psychomotor Domain:

Correctly identify different electronic hand tools.
Demonstrate the basic handling and use of screwdrivers and diagonal cutters.
Practice basic soldering and desoldering techniques using appropriate tools.

Participate actively in class discussions about tool identification and usage.

Reference Materials

The following resources were used in planning this lesson:

9 Years Basic Education Curriculum for Basic Technology (Senior Secondary School)
State Unified Scheme of Work for Radio, TV & Electronics
Introductory Technology for Senior Secondary Schools, Book 1

Instructional Materials

The teacher will teach this lesson with the aid of:

A complete screwdriver set (flathead, Phillips)
Diagonal cutters
Soldering iron
Soldering gun
Lead sucker
Pocket knife
Wire stripper
Soldering wick
Sample electronic circuit boards or components

Rationale for the Lesson

This lesson helps pupils understand the essential tools used in electronic work. Knowing how to identify and use these tools correctly is important for practical skills development and ensures safety when working with electronic components and circuits.

Prerequisite/Previous Knowledge

Pupils are expected to have basic knowledge of simple tools and general safety practices in a workshop environment.

Lesson Content/Board Summary

ELECTRONIC HAND TOOLS

Definition of Electronic Hand Tools

Electronic hand tools are non-powered, manually operated devices specifically designed for tasks related to assembling, repairing, and testing electronic circuits and components. They are essential for precision work in electronics.

Types of Electronic Hand Tools and Their Uses

The following are common electronic hand tools and their primary uses:

Screw Drivers: Used for tightening or loosening screws. They come in various types such as flathead, Phillips, Torx, and Pozidriv to match different screw heads.
Diagonal Cutters: Also known as side cutters, these are used for cutting wires, component leads, and small cables. They have sharp, angled jaws for precise cuts.
Soldering Gun: A high-power soldering tool that heats up quickly, suitable for heavy-duty soldering work or when rapid heating is needed.
Soldering Iron: A basic tool used to melt solder, allowing it to flow between components and circuit board pads to create electrical connections. It is suitable for general electronic soldering.
Lead Sucker (Desoldering Pump): Used to remove molten solder from connections. It creates a vacuum to suck up the solder, enabling components to be removed.
Pocket Knife: A versatile tool used for various light tasks such as scraping, cleaning, or cutting insulation, though dedicated strippers are preferred for wires.
Stripper (Wire Stripper): Specifically designed to remove the insulating material from the end of electrical wires without damaging the conductor inside.
Soldering Wick (Desoldering Braid): A braided copper wire used to absorb molten solder from connections. It is placed over the joint and heated with a soldering iron to soak up excess solder.

Teaching Methods/Instructional Techniques

Discussion, Lecture, Demonstration, Question and Answer, Visual Aids

Instructional Procedures

Step 1: Introduction

Time: 5 minutes
Teaching Skill: Set Induction
Teacher’s Activity: The teacher greets the pupils, reviews the previous lesson briefly, and then introduces the new topic by asking pupils about tools they have seen or used for fixing things at home, especially electronic gadgets. The teacher will then state the lesson topic: ELECTRONIC HAND TOOLS.
Pupils’ Activity: Pupils respond to questions and listen attentively.
Learning Point: Pupils are prepared for the lesson and understand its relevance.

Step 2: Presentation of Types of Electronic Hand Tools

Time: 10 minutes
Teaching Skill: Explanation/Demonstration
Teacher’s Activity: The teacher defines electronic hand tools and presents various types of tools, showing each one physically. The teacher will mention the general category of tools and their importance in electronics.
Pupils’ Activity: Pupils observe the tools, listen to explanations, and identify the tools shown.
Learning Point: Pupils learn the definition of electronic hand tools and are introduced to different types.

Step 3: Focus on Screw Drivers and Diagonal Cutters

Time: 8 minutes
Teaching Skill: Demonstration/Explanation
Teacher’s Activity: The teacher explains the different types of screwdrivers (flathead, Phillips) and their specific uses. The teacher also explains the function of diagonal cutters and demonstrates how to use them safely for cutting wires. Pupils are encouraged to observe closely.
Pupils’ Activity: Pupils observe the demonstration, ask questions, and take notes.
Learning Point: Pupils understand the uses and proper handling of screwdrivers and diagonal cutters.

Step 4: Focus on Soldering Tools

Time: 8 minutes
Teaching Skill: Demonstration/Explanation
Teacher’s Activity: The teacher introduces the soldering iron, soldering gun, lead sucker, and soldering wick. The teacher explains the purpose of each tool in soldering and desoldering, demonstrating their basic use with a simple circuit board if available. Safety precautions for handling hot tools will be emphasized.
Pupils’ Activity: Pupils pay close attention to the demonstration, noting the differences between the tools and safety tips.
Learning Point: Pupils learn about various soldering tools and their roles in creating and removing electronic connections safely.

Step 5: Focus on Other Hand Tools (Pocket Knife, Stripper)

Time: 5 minutes
Teaching Skill: Explanation/Demonstration
Teacher’s Activity: The teacher explains the uses of a pocket knife for light tasks and demonstrates the correct way to use a wire stripper to remove insulation from wires without damaging the conductor. Emphasis is placed on using the right tool for the job.
Pupils’ Activity: Pupils observe the demonstrations and learn the specific uses of these tools.
Learning Point: Pupils understand the functions of a pocket knife and wire stripper and the importance of using appropriate tools.

Step 6: Practical Observation and Practice

Time: 4 minutes
Teaching Skill: Guided Practice
Teacher’s Activity: The teacher allows pupils to briefly handle some of the non-hazardous tools (e.g., screwdrivers, diagonal cutters, strippers) under strict supervision. The teacher guides them on correct grip and basic action.
Pupils’ Activity: Pupils carefully handle the tools, practicing basic actions as guided by the teacher.
Learning Point: Pupils gain initial practical experience with electronic hand tools.

Step 7: Evaluation/Review

Time: 5 minutes

Teaching Skill: Questioning/Assessment

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

What are electronic hand tools?
Mention three types of screwdrivers.
State the primary use of diagonal cutters.
Explain the difference between a soldering iron and a lead sucker.

Pupils’ Activity: Pupils answer orally and in writing.

Learning Point: Pupils demonstrate understanding of the lesson.

Step 8: Conclusion

Time: 2 minutes
Teaching Skill: Summarization
Teacher’s Activity: The teacher summarizes the key points of the lesson, reiterating the importance of knowing and correctly using electronic hand tools for effective and safe work. The teacher assigns homework: research other specialized electronic hand tools.
Pupils’ Activity: Pupils listen to the summary and copy down the homework.
Learning Point: The lesson is reinforced, and pupils are encouraged to continue learning.

Lesson Keywords

Hand Tools – Manually operated devices used for specific tasks.
Screwdriver – A tool for turning screws.
Diagonal Cutters – Pliers used for cutting wires.
Soldering Iron – A tool used to melt solder for joining electronic components.
Lead Sucker – A device used to remove molten solder.
Wire Stripper – A tool for removing insulation from wires.
Soldering Wick – Braided copper used to absorb solder.

Differentiation

For pupils who grasp concepts quickly, the teacher can challenge them to identify specialized electronic tools beyond those discussed. For those who need more support, the teacher will provide additional one-on-one guidance during practical observation and use more visual aids and repetitive explanations.

Note for teachers using this lesson plan

Ensure all tools are available and in good working condition for demonstration. Emphasize safety precautions, especially when handling sharp or hot tools. Encourage pupils to actively participate in identifying and discussing the uses of each tool. Practical demonstration is key to understanding, so allow ample time for it.