First Term Lesson Note for Week Three

Class : JSS 1

Subject : Basic Technology

Topic : Workshop Safety II ( Accident)

Duration : 80 Minutes

Periods :“Double periods

TOPIC: WORKSHOP SAFETY (II)- DEFINITION OF ACCIDENTS

Learning Objectives : By the end of the lesson learners will be able to :

I. Define an accident

II. State the causes of accidents

III. Identify ways of Preventing Accident

IV. Fire and types

INSTRUCTIONAL MATERIALS : Charts showing an accident scene in a workshop.

REFERENCE BOOK : Evans Basic Technology for Junior Secondary School, Book 1.

CONTENT :

DEFINITION OF ACCIDENT

An accident is an unforeseen turn of events without an apparent cause i.e. a negative experience that happens to somebody when he does not expect it. Accidents can be caused by people and equipment.

CAUSES OF ACCIDENTS

Causes of accidents in the workshop can be grouped under two major headings:

(I) Unsafe actions (ii) unsafe conditions

Unsafe Actions

Lack of concentration

horseplay

Lack of carefulness in handling the machines

Fatigue / tiredness

Failure to use safety devices

Unsafe Conditions

Bad/faulty machine

Slippery or wet floors

Absence of safety devices

Non-maintenance of tools

Working in the workshop when one is tired or sick.

ACCIDENT PREVENTION

Accidents in the workshop can be prevented by observing the following rules:

Keep workshop clean and tidy

No horse play

Dress safely for work

Work safely with hand tools

Work safely with machines

Work safely electrical tools, machines and appliances

Work safely with hot materials

Always be very careful.

TYPES OF FIRE

There are two types of fire which can occur in a workshop. These are:

Electrical fire

Chemical fire

ELECTRICAL FIRE

An electrical fire may result due to the following: Sparks due to short circuit or partial contact, Poor wiring, Wrong electrical connections, Overloading, Not switching off electrical appliance after use. Electrical fire is fought with fire extinguisher, water and dry sand.

CHEMICAL FIRE

A chemical fire is caused by chemical substances used or stored in the workshop. Examples of chemical substances are gas, oil and grease.

Chemical fire is fought with foam, dry sand or gas from a fire extinguisher. Never use water to put out fire caused by chemicals.

EVALUATION / ASSESSMENT:

1. What is an accident?
2. State five (5) causes of accidents.
3. How can we prevent accidents in a workshop?
4. List two types of fire that can occur in the works.

CONCLUSION : The teacher goes over the lesson by summarizing and pointing out the salient point based on the learning objectives.

ASSIGNMENT :

1. _______ is a place where activities such as fabrication, designing, construction and drawing take place. (a) Factory (b) Hospital (c) Hostel (d) Workshop.

2. ______________ means protection from, or not being exposed to the risk of harm or injury (a) Methodology (b) Skill (c) Safety (d) Technology

3. ______________ is a negative experience that happens to somebody when he does not expect it (a) An accident (b) Disease (c) Fire outbreak (d) Electrical sparking.

4. The following are causes of accidents except (a) using appropriate safety devices (b) Lack of concentration (c) horseplay (d) Lack of carefulness in handling machines

5. ______________ are to be used to stop fire from destroying lives (a) Extinguishers and bucket of sand (b) Helmets (c) Boots (d) Goggles

THEORY

1. Draw a typical basic technology workshop layout.

2. State five (5) workshop safety precautions.

3. Mention five (5) workshop safety devices.