Lesson Note: Measurement of Mass (Basic 3)

Class: Primary 3

Term: 1^st Term

Week: 2

Class: Primary 3

Age: 8 years

Duration: 45 minutes

Date:

Subject: Basic Science and Technology 

Curriculum Theme: Basic Science

Topic: Measurement of Mass

SPECIFIC OBJECTIVES: At the end of the lesson, pupils should be able to

1. Explain the meaning of Mass & Weight
2. Identify and mention various instruments for measuring mass & Weight
3. Identify the metric units of measuring mass
4. Use mass balance to estimate the masses of objects in the classroom such as pencils, notebooks, etc.

INSTRUCTIONAL MATERIALS: weighing scale, lever arm balance, rope, sticks, record book, charts on standard units of mass, playing ground, balls.

INSTRUCTIONAL PROCEDURES 

CONTENT DEVELOPMENT – Measurement of Mass

NOTE

What is Mass?

Mass is the amount of stuff, or matter, an object is made of. It tells us how heavy or light an object is. For example, a big rock has more mass than a small pebble because it has more stuff inside it.

What is weight? 

Weight is the force that pulls objects towards the Earth. It’s what makes objects feel heavy or light. When you step on a weighing scale, it measures your weight. Objects can weigh differently because of their mass.

Instruments for measuring mass and weight

The following instruments are used to measure mass & weight: Mass balance, beam balance, spring balance, physical balance, electronic weighing machines, etc

Metric unit of mass and weight

10 milligrammes = 1 decigramme

10 decigrammes = 1 centigramme

10 centigrammes = 1 gramme

1000 grammes = 1 kilogramme

1000 Kilogrammes= 1 tonne

EVALUATION:   

1. Define Mass

1. Define Mass
2. What is weight?
3. List 3 standard instrument for measuring mass and weight
4. Recite the metric unit of mass and weight

CLASSWORK: As in evaluation

NOTE TO TEACHERS:

Please note that the actual content of the lesson, teaching methods, and pupil activities may vary based on your specific teaching style and curriculum or resources. Feel free to customize the lesson note to fit your needs. 

Remember to use examples and comparisons that the child can relate to, such as comparing the mass of different objects they encounter in their daily life.