Maintenance Basic Science and Technology 2nd Term Primary 6 Week 10

Subject : 

Basic Science and Technology

Term :

Second Term


Week 10

Class :

Primary 6 /  Basic 6


Previous lesson : 

The pupils have previous knowledge of

Woodwork Hand tools

in Basic Science in their previous lesson

Topic : 


Definition of Maintenance

– Types of Maintenance

– Importance of Maintenance


Behavioural objectives :

At the end of the lesson, the pupils should be able to

  • define maintenance
  • say the reasons for caring out maintenance
  • mention types of maintenance

Instructional Materials :

  • Wall charts
  • Pictures
  • Related Online Video
  • Flash Cards

Methods of Teaching :

  • Class Discussion
  • Group Discussion
  • Asking Questions
  • Explanation
  • Role Modelling
  • Role Delegation


Reference Materials :

  • Scheme of Work
  • Online Information
  • Textbooks
  • Workbooks
  • 9 Year Basic Education Curriculum
  • Workbook



What is maintenance ?

Maintenance is any mental or mechanical activities that is carried out in order to sustain the good working condition of any objects , machine or human for that they will be in good working condition for a very long time.


What are the reasons for maintenance ?

  • To keep the machine in good working condition for a very long period of time
  • To increase the working life span of the object or machine and save money on costs of replacement or repair
  • To avoid unnecessary wasteful spending on repairs that are not always efficient and effective as the new ones
  • To reduce , prevent or eliminate the possibility or the occurrence of accidents

Types of maintenance 

  1. Predictive Maintenance : This type of maintenance is easily foretold and expected in order to keep the machine in optimal performance . Examples of such predictive maintenance is the regular change change of engine oil of a motor cycle or motor bike at least once in every fourteen days or proper tyre gauge of a motor vehicle
  2. Preventive Maintenance : Preventive maintenance is necessitated by the need to prevent the vehicle of machine from total collapses or breakdown . This is easily noticed when the vehicle starts making funny strange sounds . it is better that the vehicle is taken to the mechanic workshop to prevent breakdown of the machine
  3. Corrective Maintenance : This type of maintenance is always carried out when the deed had already been done . It is most undesirable because the machine is already down and this may affect productive use of time . The machine is already down , we just want to salvage or save what is left . Prevention is better than cure .




The topic is presented step by step


Step 1:

The class teacher revises the previous topics


Step 2.

He introduces the new topic


Step 3:

The class teacher allows the pupils to give their own examples and he corrects them when the needs arise




The class teacher wraps up or conclude the lesson by giving out short note to summarize the topic that he or she has just taught.

The class teacher also goes round to make sure that the notes are well copied or well written by the pupils.

He or she does the necessary corrections when and where  the needs arise.




  • What is maintenance
  • What is corrective  maintenance .
  • What is preventive  maintenance
  • What is predictive  maintenance
  • define measuring tools
  • give four examples of measuring tools
  • Mention four reasons for maintenance
  • give four examples of cutting tools




Prepare for the next lesson by reading about revision