Complete JSS3 Basic Technology Lesson Note

Description

These lesson notes cover the following topics for JSS3 First, Second and Third Term Basic Technology:

FIRST TERM

1. Career prospect and opportunities in technology
2. processing of materials
-wood
3. processing of wood
-conversion
– seasoning
4. processing of wood
– defect in wood
– preservation
5. processing metal
6. processing of ceramics, plastics and rubber
7. drawing practices
– isometric drawing
8. oblique drawing
9. perspective drawing
10. orthographic drawing
11. scale drawing
12. simple blue print reading

SECOND TERM

1. Revision of first term work
2. Mechanical energy transmission system. (a) Friction (b) effects of friction (c) advantages and disadvantages of friction (d) methods of reducing friction (e) belt and chain drive (f) comparison with the gear drive
3. Mechanical energy transmission system.Gear. (i) Gears and gearing systems and related calculations. (ii) types of gears; internal gear, external gear,… (iii) uses of gears; power transmission, changing of direction, for selecting speed(iv) gear ratios and speed ratio (V) friction between meshed gears.
4. Mechanical energy transmission system. Motion (i) linear motion (ii) lever arrangement to produce linear motion (iii) uses of slides and slot in mechanical system (iv) Rotary motion, types of rotary motion – oneway rotary motion and the reversible rotary motion. (v) Conversion of rotary motion to linear motion
5. Mechanical energy transmission system. Airflow. (i) Speed and pressure relationship in air flow. (ii) Variation of air pressure and air speed and their applications. Pneumatics; (i) simple hydraulics and pneumatics devices; simple force pump, double acting pump,… (ii) Compressed air devices, hydraulic jacks, simple garden sprinkler, reaction turbine, water wheel
6. Simple electrical wiring: (a) electrical circuit: series and parallel circuits (b) wiring tools and materials; pliers, hammer, screw driver, clips, wooden blocks, cables, etc. (c) accessories: switches, lamp holders, etc
7. Building (a) foundation (i) definition and function of foundation: support and weight of walls, roofs and inhabitants (ii) foundation types: strip, stepped, raft etc. (iii) types and properties of soil (iv) hand tools and plant for excavation: diggers, shovels, excavator, etc. (b) walls; (i) materials for making walls: grass, zinc, curtain, bricks, etc. (ii) types of walls: walls grass, zinc, curtain bricks etc. (iii) materials for bonding
8. Building (c) floors: (i) floor: basement, ground floor, first floor, etc. (ii) DPC (d) doors, windows and openings (i) Doors: flush door, glazed, sliding, revolving, etc. (ii) windows: louver, sliding, casement, etc (iii) lintel
9. Building (e) Roofs (i) types of roof: flat roof, double pitched, lean-to Gable, etc (ii) roofing materials: grass, zinc, aluminium, etc. (f) simple blue print reading (I) sanitary wares: sink, bath, showers, etc. soak-away, septic tank, socket, windows, doors, room, etc.
10. Practical projects.

THIRD TERM

1 REVISION
2 WOOD WORK HAND TOOLS-BORING TOOLS, CUTTING TOOLS
3 WOODWORK HANDTOOLS (CONTD.) –DRIVING AND IMPELLING TOOLS, HOLDING DEVICES, CARE AND MAINTENANCE.
4 METALWORK HANDTOOLS- MARKING OUT TOOLS,MEASURING TOOLS, HOLDING DEVICES
5 METAL WORK HAND TOOLS (CONTD.)-CUTTING TOOLS, DRIVING TOOLS
6 MAINTENANCE OF TOOLS AND MACHINES
7 BASIC ELECTRICITY- CURRENTS, ELECTRIC CIRCUIT.
8 BASIC ELECTRICITY (CONTD.)-MEASURING INSTRUMENTS, TRANSFORMERS, ELECTRICAL APPLIANCES AND ACCESSORIES.
9&10 BASIC ELECTRICITY (CONTD.)- SIMPLE ELECTRICAL CALCULATIONS

REFERENCE MATERIALS
• MELROSE, Basic Science and Technology Book 1
• NERDC, Basic Technology for JSS, Book 1

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