First Term Lesson Note for Week Two

Class : Primary Three

Subject : Basic Science

Topic : Measurement of mass

Subtitle: Mass

Duration : 40 Minutes

Period : Single Period

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

i. Define mass

ii. Identify the instruments for measuring Mass

iii. State the unit of mass

Resources and Materials :

Stan Basic Science and Technology for Primary Schools, Book 3.

Lagos State Unified Scheme of work for lower Primary Schools

Online Resources

Instructional Material : Kitchen Scale, weighing balance and beam balance

Building Background/connection to prior knowledge: pupils are familiar with the topic in their previous classes.

CONTENT

Mass is the amount weight a body or and contains.

We can use the following to know the mass of an object; beam balance, kitchen scale, spring balance and bathroom scale.

Beam balance Kitchen scale

We know the main standard unit of mass or weight is kilogram, which we write in short as ‘kg’.

1000th part of this kilogram is gram which is written in short as ‘g’.

Thus 1000 gram = 1 kilogram and 1 kilogram = 1000 gram

Below is a picture of objects of different weight, 500g and 1kg.

Strategies& Activities:

Step 1: Teacher revises the previous topic.

Step 2: Teacher introduces the new topic.

Step. 3: Teacher explains the new topic.

Step 4: Teacher welcomes pupils’ questions.

Step 5: Teacher evaluates the pupils.

Assessment & Evaluation:

1. What is mass?

2. Mention two instrument you can use to measure mass.

WRAP UP(CONCLUSION) :

Teacher goes over the topic once again for better understanding.

Assignment:

1. How many grams make 1kg?

2. Write three instruments we can use to measure mass

3. Convert 9kg to grams