Lesson Notes By Weeks and Term v4 - JHS 3

Lesson Video

This page supports the lesson note with a companion video and a short classroom-ready summary.

For class groups and homework, share this lesson page so learners also get the summary, objectives, and full lesson context.

Performance objectives

• Identify and describe different cutting and shaping tools.
• Explain the purpose and proper use of each tool.
• Demonstrate safe handling practices.
• Compare manual and powered tools.

Lesson summary

This lesson introduces the essential tools and equipment used for cutting and shaping various materials like wood, metal, fabric, and food. Understanding these tools is a fundamental skill in Career Technology. Whether you want to become a carpenter in Koforidua making furniture, a fashion designer in Accra creating beautiful clothes, a welder in Tema fabricating gates, or a chef in a hotel in Kumasi, you must master the tools of your trade. This knowledge empowers you to create useful and beautiful products safely and efficiently.

Lesson notes

A. Defining Cutting and Shaping Cutting: This is the process of dividing a material into two or more pieces, or removing a part of a material, by using a sharp-edged tool. For example, sawing a piece of wood, slicing a tomato, or cutting a piece of cloth with scissors. Shaping: This is the process of changing the form or outline of a material to a desired profile without necessarily dividing it completely. It often follows cutting. For example, using a plane to smoothen wood, filing a piece of metal to round its edges, or using a rolling pin to flatten dough. B. Tools and Equipment for Working with WOOD

Wood is a common material used for furniture, buildings, and crafts in Ghana. We use specific tools to work with it.

Wood Cutting Tools: Handsaw: A general-purpose saw. There are two main types: Ripsaw: Has large, chisel-like teeth designed for cutting *along* the grain of the wood. Used for making long cuts to reduce the width of a board. Crosscut Saw: Has smaller, knife-like teeth designed for cutting *across* the grain of the wood. Used for cutting a plank to the correct length. Tenon Saw: A small saw with a stiffening rib on the back edge. It is used for making fine, accurate cuts, such as those needed for making joints (like mortise and tenon joints). Coping Saw: Has a very thin, narrow blade held in a C-shaped frame. It is used for cutting intricate curves and shapes, for example, in making toys or decorative patterns.

Wood Shaping Tools: Jack Plane: A general-purpose plane used for the initial smoothing and flattening of rough timber. It's the first plane you use on a piece of wood from the sawmill. Smoothing Plane: A shorter plane used for the final, fine finishing of a wood surface to make it very smooth before applying varnish or paint. Chisel: A tool with a characteristically shaped cutting edge of blade on its end. Used for carving or cutting hard materials. In woodwork, it is used to chip out wood, create joints (like dovetail joints), and for carving. A mallet is often used to tap the chisel. Wood Rasp/File: A long steel tool with sharp teeth. A rasp has coarse, individual teeth for removing wood quickly, while a file has finer teeth for smoother shaping.