JSS3 Third Term Basic Technology Lesson Note
Scheme of Work
JSS3 BASIC TECHNOLOGY THIRD TERM: SIMPLE ELECTRICAL WIRING
JSS3 BASIC TECHNOLOGY THIRD TERM: BUILDING (FOUNDATION)
JSS3 BASIC TECH THIRD TERM: BUILDING (WALLS)
JSS3 Third Term Basic Technology Lesson Note
Below are the 2022 complete JSS3 Third Term Basic Technology Lesson Note
WEEK 4
Topic: Simple Electrical Wiring
Content
- Electrical Circuit
- Wiring Tools
- Accessories
Electric Circuits
An electric is a complete path through which electrons or current flows. The path is made up of cable or wire which connect all the components of the circuit.
Components of an electric circuit include:
(i) Battery or generator: This is referred to as the power source.
(ii) Conductor: This is the cable or wire used in connecting other components. The conductor is made of copper.
(iii) Load: This includes the lamp and the other electrical appliances connected to the circuit e.g. radio and T.V. sets, fan, etc.
(iv) Control: This refers to the electric component that is used to switch “on” and “off” current. Fuses are included as control since they cut off in case of excess voltage. To learn more, click here.
JSS 3 THIRD TERM BASIC TECH WEEK 5
Topic: BUILDING (Foundation)
Content:
- Definition and function of foundation
- Types of foundation
Foundation
The foundation in its widest sense can be said to be expanded base of a wall or a column in addition to the ground or sub-soil, which the building stands is the natural foundation, and the expanded base which is constructed with concrete or masonry materials like rocks, stone, or bricks is called the artificial foundation. However, when the word ‘foundation’ is used ordinarily, it means artificial foundation. In a swampy and waterlogged area, foundation also embraces the long concrete poles driven, or concrete cast into bored holes for purposes of carrying the structure above it.
Function of Foundation
The foundation, acting as a large flat-heeled shoe worn by the building, bears the total weight of the building and ensures that the weight is evenly distributed over the surface area of the foundation in such a manner that eliminate unequal settlement.
1. It receives and supports the loads (weight) of the building and transmits them to the solid part of the ground.
2. It ensures that the weight of the building is evenly distributed over the surface area of the foundation to avoid unequal settlement. To learn more, click here
WEEK 6
Topic: BUILDING (Walls)
Content:
- Materials foe wall making
- Types of walls
- Bonding materials
Wall
Walls are the continuous vertical structure of a building which are built primarily to perform any or a combination of these functions:
i. Enclose space, as in the external walls of a building, boundary or fence wall, reservoirs, and so on.
Ii. Divide space as in partition and compartment walks.
iii. Carry load and provide support for other elements and fitments for the building structure like the load of the floor and the roof above, windows, electrical fittings, air conditioners, sanity and water supply fitments.
Walks in the building can, in addition, be used as a shield against bad weather; some are used for screening spaces from view, and yet some are also used for decoration. Walls may or may not be constructed to carry any load.
Materials for making Walls
There are variety of materials for the construction of walls in Nigeria, walls are with any or combination of these materials – grasses, leaves, tree branches, tree trunks, timbre, stone, mud, bricks of clay, sand, concrete blocks, metal sheets, concrete, timer products (manufactured wood), synthetic materials and glass, curtain, zinc. Some of these walls are shown. To learn more, click here
