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# Meaning and Standard Units of Volume | Measuring Liquid in Millilitre (ML), Centilitre (CL) and Litre (L) Primary 4 (Basic 4) – Basic Science and Technology

### BASIC SCIENCE

BASIC SCIENCE AND TECHNOLOGY

WEEK 9

PRIMARY 4

THEME – MEASUREMENT

PREVIOUS KNOWLEDGE – Meaning of Measurement | Measurement Length and Breadth of Objects | Different between Length and Breath | Area of Objects in cm²/m² Primary 4 (Basic 4)

### LEARNING AREA

1. Introductory Activities

2. Meaning of Volume

3. Measuring in Volume

4. Lesson Evaluation and Weekly Assessment (Test)

### PERFORMANCE OBJECTIVES

By the end of the lesson, most of the pupils should have attained the following objectives (cognitive, affective and psychomotor) and should be able to –

1. measure amounts of liquids accurately using graduated measuring cylinders, cups or jars;

2.state the metric unit of volume;

3. improvise a measuring cylinder with estimated scales for volumes in metric system.

### ENTRY BEHAVIOR

The pupils can identify some of the measuring tools used for liquid.

### INSTRUCTIONAL MATERIALS

The teacher will teach the lesson with the aid of –

measuring cylinders of different sizes, water, other liquids e.g. kerosene, oil, etc., empty jam jars, rulers, strips of paper, pens, notebooks, coke bottles, juice drink packs.

### METHOD OF TEACHING

Choose a suitable and appropriate methods for the lessons.

Note – Irrespective of choosing methods of teaching, always introduce an activities that will arouse pupil’s interest or lead them to the lessons.

### REFERENCE MATERIALS

Lagos State Scheme of Work

9 – Years Basic Education Curriculum

Course Book

All Relevant Material

Online Information

### LESSON 1 – INTRODUCTORY ACTIVITIES

ACTIVITY 1

Introductory Activities – Get small sample of groundnut/palm oil and  kerosene. Based on their previous assignment, engage the pupils to discuss how the above liquid are measured in the market.

Note – The above activities depend on the pupil’s environment. Some these tools can be either in bottles or gallon. Accept relevant opinions.

Pupil’s Activities – Participate actively in the classroom discussion.

Teacher’s remark – Listen and participate in pupil’s discussion and give them one great clap. Introduce the lesson and review the meaning of measurement.

ACTIVITY 2

Teacher’s Activities – Group the pupils into two or more depending on the size of the lesson. Give them some containers and direct them to identify the volume of each container.

Pupil’s Activities – The is 50 cl, 25 cl, 35 cl, 1 litre, 5 litres, etc.

Teacher’s remark – Liquid is measured in millilitres, centilitres or litre. Discuss and note the meaning of volume on the board.

### MEANING OF VOLUME

Liquid volume is the amount of liquid in a container. The liter (L) is the standard metric unit for measuring liquid volume. Other are centilitre and millilitre. A milliliter (mL) is the metric unit to measure liquid in very small containers.

### LESSON 2 – INTRODUCTORY ACTIVITIES

Teacher’s Activities – Get a 50 cl and 1 L of coke containers. Based on the existing groups, engage the pupils to use water to demonstrate the relationship centilitre and litre.

Pupil’s Activities – Two containers of 50 cl coke equal 1 L.

Teacher’s remark – Every 100 cl is equal to 1 L. Good job you for active participation. Give the some exercise to get the pupils familiar with cl and L.

### QUICK EXERCISE

State the equivalent of the following in cl and L.

1. 50 cl =

2. 100 cl =

3. 150 cl =

4. 1 L =

5. 2.5 L =

1. 0.5 L

2. 1 L

3. 1.5 L

4. 100 L

5. 250 cl

### LESSON 3 – MEASURING OF LIQUID

Get some other graded measuring tools and engage the pupils to measuring the volume of liquids in:

1. mI

2. cI

3. I

Other Method –

### PRESENTATION

To deliver the lesson, the teacher adopts the following steps:

1. To introduce the lesson, the teacher revises the previous lesson. Based on this, he/she asks the pupils some questions;

2. Provides pupils with measuring cylinders and graduated jars and cups;

Pupil’s Activities – Measure the volume of liquids in metric units.

3. Uses appropriate chart and guide pupils to take correct readings of liquids in the measuring cylinder.

Pupil’s Activities – Record their measurements correctly with units.

4. Guides pupils to improvise measuring cylinders with estimated scales;

Pupil’s Activities – Improvise and calibrate measuring cylinders with scales estimated in metrics units. Find equivalent volumes of market measures using standard calibrated instruments.

5. Display written volume of content in common soft drinks and juice drink packs (e.g. coke 35cl).

Pupil’s Activities – Finds out volumes of soft drinks and juice drinks on their packs.

### CONCLUSION

To conclude the lesson for the week, the teacher revises the entire lesson and links it to the following week’s lesson.