Strand: HEALTH AND SAFETY IN USING ICT TOOLS ................................ ................................ ................................ ................................ ................................ ................ 60
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Subject: Computing
Class: Basic 6
Term: 1st Term
Week: 4
Strand code: 1
Theme: HEALTH AND SAFETY IN USING ICT TOOLS ................................ ................................ ................................ ................................ ................................ ................ 60
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In Ghana today, we use Information and Communication Technology (ICT) tools like smartphones, tablets, and computers almost everywhere—in our schools, homes, and at internet cafes. While these tools are very useful for learning and communication, they can also be dangerous if not used correctly. Just as we learn to be careful on the road to avoid accidents, we must also learn to use ICT tools safely to protect our bodies and the equipment itself. This lesson will teach us how to identify common dangers in a computer lab and how to use computers in a way that keeps us healthy and safe.
This lesson focuses on two main areas of safety: Environmental Safety (the safety of the room and equipment around us) and Personal Health Safety (how we use our bodies to avoid injury). A. Environmental Hazards and Safety Measures
A hazard is anything that has the potential to cause harm to people, property, or the environment. In a computer lab, these hazards are common but can be easily managed. Trailing Cables: Explanation: These are power cords or network cables that lie across the floor where people walk. Danger: They are a major trip hazard. Someone can easily catch their foot on the cable, fall, and injure themselves. Tripping on a cable could also pull a computer or monitor off a desk, damaging expensive equipment. Example: Imagine the long charging cable for the teacher's laptop stretching from the wall socket to the front desk, right across the main walkway. A learner rushing to answer a question might not see it and fall. Safety Measure: All cables should be neatly tied up or run along walls and corners. They can be covered with special rubber cable protectors or taped down securely. Liquids and Food near ICT Tools: Explanation: Bringing water, drinks like *sobolo* or *kalyppo*, or food like *bofrot* or biscuits into the computer lab. Danger: Electric Shock: Water and most liquids conduct electricity. Spilling a drink on a computer, monitor, or power strip can cause a short circuit, potentially leading to a dangerous electric shock for anyone who touches it. Equipment Damage: Liquids can permanently damage the internal parts of a keyboard, mouse, or computer. Food crumbs can get stuck under keyboard keys, making them difficult to use. Safety Measure: A strict "No Food or Drink" rule must be enforced in the computer laboratory at all times. Poor Ventilation and Overheating: Explanation: A room with no open windows, no fans, or a broken air conditioner. Computers themselves produce a lot of heat. Danger: Overheating Equipment: The Central Processing Unit (CPU) and other parts of a computer can get too hot and stop working or become permanently damaged. User Discomfort: A hot, stuffy room makes it very difficult for learners to concentrate and learn. Safety Measure: Ensure windows are open, fans are working, and there is a good flow of air. Do not block the cooling vents on the computer towers or laptops. Obstacles on Walkways: Explanation: Leaving school bags, books, or other personal items on the floor between desks. Danger: Similar to trailing cables, these are trip hazards. In an emergency, like a fire alarm, blocked walkways can slow down evacuation and cause panic and injury. Safety Measure: All bags and personal belongings should be stored under the desk or in a designated area away from walkways. B. Personal Health Safety (Ergonomics)
Ergonomics is the science of designing and arranging things people use (like chairs and desks) so that they can be used efficiently and safely. Good ergonomics helps prevent pain and injury. Correct Sitting Posture: Explanation: How you position your body when sitting at a computer for a long time. Poor posture can lead to back pain, neck pain, and headaches. Step-by-Step Guide to Good Posture: Chair: Adjust your chair height so your feet are flat on the floor. Your knees should be at a 90-degree angle (like the corner of a square). Back: Sit up straight. Your lower back should be supported by the chair's backrest. Do not slouch or lean forward. Screen: The top of the monitor should be at or slightly below your eye level. You should not have to look up or tilt your head down to see the screen. Arms: Your elbows should be bent at a 90-degree angle, and your wrists should be straight when typing, not bent upwards or downwards. Distance: Sit about an arm's length away from the screen. Preventing Eye Strain: Explanation: Staring at a bright screen for a long time without a break can make your eyes feel tired, dry, itchy, and can even cause headaches. This is called eye strain. Safety Measure: The 20-20-20 Rule This is a very simple and effective rule to remember. Every 20 minutes... ...look at something 20 feet away... ...for 20 seconds. Example: During a long typing lesson, every 20 minutes, the teacher can ask everyone to stop, look out the window at a distant tree or building, and count to 20 before continuing. This gives your eye muscles a chance to relax.
Guided Practice (With Solutions)