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 key personal safety measures.
• Explain the importance of a clean workspace.
• Recognize potential hazards and how to prevent them.
• Understand how to use safety equipment correctly.

Lesson summary

In Ghana, many of us learn practical skills at home, in school, or through apprenticeships with local artisans like carpenters, caterers, and mechanics. While these skills are valuable for our futures, the places where we work—be it a school workshop, a community kitchen, or a "fitter's" shop—can be dangerous if not properly managed. This lesson moves beyond simply knowing the safety rules; it focuses on the active, ongoing process of *maintaining* a safe environment. By learning how to consistently keep our workspaces clean, organised, and in good repair, we can prevent accidents, protect our health, and ensure we can work productively for a long time.

Lesson notes

This lesson focuses on the continuous actions we must take to keep our working environments safe. It's not a one-time activity but a habit. We can break down the process of maintaining a safe environment into three core areas: Housekeeping, Preventative Maintenance, and Safe Work Systems. A. Good Housekeeping: The Foundation of Safety

Good housekeeping means keeping the workspace clean, tidy, and organised at all times. It is the most important factor in preventing common accidents like slips, trips, and falls. Definition: Good housekeeping is the proactive and consistent practice of keeping work areas clean, orderly, and free from hazards. Key Principles: Clean as You Go: This is a vital habit. Don't wait until the end of the work session to clean up. If you spill flour, wipe it up immediately. If you create sawdust, sweep it up before it spreads. Proper Waste Disposal: Use designated bins for different types of waste. In a food lab, have separate bins for organic waste (yam peels, vegetable cuttings) and non-organic waste (plastic packaging). In a workshop, have a separate container for metal scraps or oily rags, which can be a fire hazard. Clear Floors and Walkways: Floors must be kept free of obstacles. Tools, materials, bags, and electrical cords should never be left on the floor where people walk. This is a major cause of tripping. Immediate Spill Management: Spills are inevitable, but how we handle them determines safety. Water/Liquid Spills (Food Lab): Cordon off the area if possible (e.g., place a chair or sign). Mop it up immediately, starting from the outside of the spill and working inwards. Ensure the floor is completely dry. A "Wet Floor" sign is ideal. Oil/Grease Spills (Workshop/Food Lab): Oil makes floors extremely slippery. First, cover the spill with an absorbent material like sawdust, sand, or gari (in an emergency). Let it absorb the oil, then sweep it up and dispose of it properly. Finally, clean the spot with soap and water to remove any remaining residue. Solid Debris (Workshop): Sawdust, wood chippings, or metal filings should be swept up regularly. A vacuum cleaner is even better for fine dust, which can be a breathing hazard.

Example (Ghanaian Context): Imagine frying plantain ("kelewele") in the food lab. A piece of plantain falls into the hot oil, causing it to splash onto the floor. Wrong action: Ignoring it and continuing to fry. Someone could walk by, slip on the oil, and fall into the hot stove. Correct action: Turn off the gas immediately. Use a cloth to carefully wipe the stove area. Then, use sand or sawdust on the floor spill, sweep it up, and clean the spot with soapy water before continuing. B. Preventative Maintenance: Stopping Problems Before They Start

Preventative maintenance means regularly checking and servicing tools, equipment, and the facility itself to prevent failures that could cause accidents. Definition: A system of planned checks, inspections, and repairs designed to keep equipment in good working order and identify potential hazards before they cause an injury. Key Areas: Tool and Equipment Inspection (Before Every Use): Hand Tools: Check for splintered wooden handles (on a hammer or file), mushroomed heads on chisels (which can splinter), and loose heads on hammers. Electrical Tools: Check cords for any cuts, frays, or exposed wires. Ensure safety guards are in place (e.g., on a grinding machine). Kitchen Equipment: Check that gas tubes on cookers are not cracked or leaking (you can use soapy water to check for bubbles). Ensure blender blades are secure and the base is stable. Make sure knives are sharp—a blunt knife requires more force and is more likely to slip and cause a cut. Personal Protective Equipment (PPE) Checks: Check goggles or face shields for cracks that might obstruct vision. Check gloves for holes or tears. Ensure aprons and lab coats are clean and fasteners (strings, buttons) are working. Facility Inspection: Lighting: Are all light bulbs working? A poorly lit area hides hazards. Ventilation: Are windows easy to open? Do extractor fans in the food lab or workshop work correctly? Poor ventilation can lead to the buildup of harmful fumes, dust, or smoke. Storage: Are shelves secure and not overloaded? Are heavy items stored on lower shelves and lighter items on top?