Lesson Notes By Weeks and Term - Primary 6

Week 4

Subject: Vocational Aptitude

Topic: Welding

Duration: 40 mins

Reference: Effective vocational aptitude guide for primary schools book 6

Previous knowledge: Pupils are familiar with sports and games

Objective: At the end of the lesson pupils should be able to 

1. Define welding
2. List the types of welding
3. Mention the tools and their functions used in welding

Content

Welding is a process of joining two or more metal parts together by heating the surfaces to the point of melting with electrode and electric arc or flame. It is the vocation of a welder.

Welding is a skill trade and requires certain level of training.

Types of welding

1. Electric arc welding: this is a type of welding where the heat needed for welding is produced by electric arc machine and electrode for welding metal parts.
2. Gas welding: this is a type of welding where the heat needed for welding is produced from the flame of burning gases. The burning gases are oxygen gas and acetylene gas. Electrode is used in gas welding.

Tools used in welding

Tools                        Functions

Electrode                    conducts current to the fusing metals

Welding goggles                protect the eyes

Face shield                    protect the face

Hammer                    for hitting metal

Mallet                        for hitting metal

Drill                        for making hole

G – clamp                    for holding object

Hack saw                    for cutting

File                        for smothering surface

Presentation:

Step I: Teacher revises previous lesson with pupils

Step II: Teacher introduces and explains new topic to pupils

Step III: Pupils are allowed to ask questions

Step IV: Teacher writes notes on the board for pupils.

Evaluation:

1. Define welding
2. List and explain two types of welding
3. Mention five tools used in welding

Conclusion: Teacher move round for inspection, marking and correction of notes where necessary.