Lesson Notes By Weeks and Term v4 - SHS 1

Lesson Video

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Performance objectives

• Identify different types of farm machines and implements.
• Understand the basic operation of simple farm machines.
• Explain the importance of safety measures.
• Recognize basic maintenance procedures.

Lesson summary

Welcome, students! Today, we are exploring one of the most exciting areas of modern farming: Modern Mechanized Agriculture. In Ghana, for many years, farming has meant back-breaking work with simple tools like the hoe and cutlass. While these are still important, using machines helps us farm larger areas, produce more food, reduce hard labour, and make farming a more profitable and attractive business for young people. Understanding how to safely operate and care for these machines is a vital skill for anyone interested in modern agriculture, whether you plan to own a large farm or work as a skilled technician.

Lesson notes

A. Core Definitions Farm Mechanization: This is the use of machinery and equipment to carry out farm operations, from land preparation to harvesting and processing. The goal is to improve efficiency, reduce labour, and increase productivity. Farm Machine: A device with an engine or motor that provides power to perform farm work. It is usually complex. *Ghanaian Example:* A corn sheller machine, a water pump for irrigation, a lawn mower. Farm Implement: A tool or device without its own engine, which is either used by hand, pulled by an animal, or attached to a machine (like a tractor) to perform a specific task. *Ghanaian Example:* A cutlass (human-powered), a bullock plough (animal-powered), a disc harrow (tractor-powered). B. Classification of Farm Machinery and Implements

We can group them into two main categories: Simple Machines and Implements: These are typically small, less complex, and often powered by human effort or small engines. They are common on small to medium-sized farms in Ghana.

| Machine/Implement | Picture/Description | Primary Use | | --------------------- | ---------------------------------------------------------------------------------- | -------------------------------------------------------------------------- | | Cutlass/Machete | A long, heavy knife. | Clearing weeds, light brushing, harvesting crops like cassava and plantain. | | Hoe | A blade set at an angle to a long handle. | Making mounds/ridges, weeding, light digging. | | Wheelbarrow | A single-wheeled cart with handles. | Transporting soil, manure, harvested crops, or tools on the farm. | | Knapsack Sprayer | A tank with straps worn on the back, a pump handle, and a nozzle. | Applying liquid fertilizers, pesticides, and herbicides. | | Lawn Mower | A machine with a small engine and rotating blades for cutting grass. | Keeping grass on school compounds, lawns, and some fodder fields short. | | Secateurs/Pruners | A pair of strong scissors for gardening. | Pruning branches on plants like cocoa, citrus, and mango to improve yield. | Complex Machines and Implements: These are large, powerful, and expensive. They are typically powered by tractors or have large built-in engines. They are used on large commercial farms. *(As per the curriculum, we will learn about their functions, often through videos, as direct operation is not feasible in a school setting).*

| Machine/Implement | Picture/Description | Primary Use | | ---------------------- | ---------------------------------------------------------------------------------- | -------------------------------------------------------------------------------- | | Tractor | A powerful motor vehicle with large rear wheels. | The main power source on a modern farm. It pulls implements, powers machines. | | Plough | A large implement pulled by a tractor to cut and turn over the soil. | Primary tillage: breaking up hard soil to prepare it for planting. | | Harrow | An implement with discs or spikes, pulled by a tractor. | Secondary tillage: breaking soil clods into a finer texture after ploughing. | | Planter/Seeder | A machine pulled by a tractor that sows seeds in rows. | Planting seeds like maize, beans, and soybeans quickly and at a uniform depth. | | Combine Harvester | A very large, self-propelled machine. | A "combination" machine that reaps (cuts), threshes (separates grain), and cleans grain crops like rice and maize in one pass. | C. Operating a Simple Farm Machine: The Knapsack Sprayer

Evaluation guide

• Operate and maintain farm machines and implements in Agricultural production.
• Experiential Learning: With the help of a master craftsman/technician, learners in
• gender -based groups discuss the step -by-step operation of simple farm machines and
• implements.