Measurement of Time – Meaning of Time | Description of Clock | Basic Unit of Time | Measuring Time Project Primary 4 (Basic 4) – Basic Science and Technology

Last Updated on July 31, 2021 by Alabi M. S.

 

BASIC SCIENCE

BASIC SCIENCE AND TECHNOLOGY

FIRST TERM 

WEEK 11

PRIMARY 4

THEME: Time 

PREVIOUS LESSON – 

 

TOPIC: MEASUREMENT OF TIME 

 

LEARNING AREA

1. Introductory Activities

2. Meaning of Time

3. Description of Clock

4. Basic Unit of Time

5. Project

6. Lesson Evaluation and Weekly Assessment (Test)

 

PERFORMANCE OBJECTIVES

By the end of the lesson, the pupils should have attained the following objectives (cognitive, affective and psychomotor):

1. devise ways to measure time;

2. state the standard unit for measuring time;

3. name the instrument for measuring time;

4. use standard instruments to measure time;

construct and use simple time devices.

 

ENTRY BEHAVIOURS

The pupils can say the time for breakfast, lunch and dinner, school assembly, short and long break, closing time for junior and senior pupils, time for religion activities, etc.

 

INSTRUCTIONAL MATERIALS

The teacher will teach the lesson with the aid of:

1. A chart showing some time measuring devices.

2. A chart on the standard units for measuring time.

 

3. Stop watches

4. Empty bottles

5. Water

6. Shoes with laces,

7. Plastic funnels and dry sieved sand

 

REFERENCE MATERIALS

1. 9 – Years Basic Education Curriculum

2. Lagos State Scheme of work

3. Basic Science and Technology

4. All Relevant Materials

5. Online Materials

 

CONTENT OF THE LESSON 

LESSON 1 – INTRODUCTORY QUESTIONS

ACTIVITY 1

Teacher’s Activities – Ask the pupils to state the time for

  • Breakfast, lunch and dinner
  • School assembly
  • Short and long break
  • Closing
  • Church service on Sunday
  • Jumaat service on Friday

Pupil’s Activities – Breakfast is…. Lunch is….

Teacher’s remark – Listen to the pupils, comment and introduction the lesson (time). Ask, discuss summary the meaning of time with the pupils.

 

MEANING OF TIME

Time is the ongoing sequence of events taken place. It is also the past, present and future.

 

ACTIVITY 2 

Teacher’s Activities – Ask the pupils, what is the tool used for checking or telling the time?

Pupil’s Activities – Clock is used for checking time.

Teacher’s remark – Correct. One clap cheer for yourself. Comment and display chart showing different clocks for the pupils to identify and describe. Participate and summary their descriptions on the board.

 

DESCRIPTION OF CLOCK

A clock is an instrument used to measure time. The time of day is built around a 24 hour clock and there are 2 ways to tell the time based on the hour and minute of the day – AM/Pm or 24 hour clock.

 

DIFFERENT PARTS OF A CLOCK

The clock has different parts. Each part is known as hand. For example,

1. Second hand

2. Minute hand

3. Hour hand

The second hand is the smallest hand.

SECOND

Second is used for measuring a short length of time. Digital stopwatch or clock is the best and easiest equipment used for measuring seconds. It is very important to able to read analog.

 

MINUTES

Minute is used for measuring time that is likely to be longer than 60 seconds. The best equipment for measuring minutes is stop clock or watch. Ordinary watches/clocks can be used but your measurements may not be accurate.

 

HOUR

Hour is used for measuring a longer period of time usually a day or week. The best equipment for measuring hours is clock or watch.

 

ASSIGNMENT

Learn how to sing – 60 seconds make 1 minutes, 60 minutes make… Write the song in your exercise book.

 

LESSON 2 – INTRODUCTORY ACTIVITIES

Teacher’s Activities – Lead the pupils to the sing – 60 seconds make 1 minutes, 60 minutes make…

Pupil’s Activities – Participate actively in the song.

Teacher’s remark – Give a clap for the pupils. The song reveals the relationship between the clock hands.

 

RELATIONSHIP BETWEEN CLOCK HANDS

60 seconds = 1 minute

60 minutes = 1 hour

 

UNITS FOR MEASURING TIME 

The basic unit of time is the second. There are also minutes, hours, days, weeks, months and years. Other are decade, centuries and millennia.

 

INSTRUMENTS/MATERIALS FOR MEASURING TIME

Throughout history, various instruments/materials have been used to measure time.

1. Cock

2. Table clock

3. Wall clock

4. Wrist watch

5. Hourglass

6. Candle sticks

7. Pendulum clock

8. Sundial

9. Chronometer

10. Sunlight

 

ASSIGNMENT

Drawing a wall clock, table clock and wrist watch.

 

LESSON 3 – INTRODUCTORY ACTIVITIES

ACTIVITY 1

Teacher’s Activities – Organize the class in two or more groups depending on the size of the class.

Ask each group to choose a member to represent their in the following activities –

  • filling an empty bottle of water,
  • fastening and loosening shoe laces,
  • run from one end of the football field to the other, etc.

Let them use the time measuring tool to observe how long it takes to carry out certain activities.

Pupil’s Activities – Participate in the activities.

Teacher’s remark – Supervise the group activities and give a cheer for active participation.

 

ACTIVITY 2

Teacher’s Activities – Get a sample hourglass or improvise and demonstrate how to use it.

Pupil’s Activities – Observe and use hourglass to measure time of filling the bottle.

Teacher’s remark – Comment and summary all lesson.

 

PROJECT

Construct and use simple measuring device such wall clock or Pendulum clock

 

Other method – Measurement of Time – Meaning of Time | Description of Clock | Basic Unit of Time | Measuring Time Project Primary 4 (Basic 4) – Basic Science and Technology ASEI PDSI METHOD

 

PRESENTATION

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

1. Revises the previous lesson. Based on this, he/she asks the pupils some questions;

2. Guides pupils to sequence events by illustrating activities with series of pictures;

Pupil’s Activities – Observe how long it takes to carry out certain activities. For examples: filling an empty bottle of water; fastening and loosening shoe laces; run from one end of the football field to the other, etc. Sequence events e.g. daily activities and life cycles.

3. Uses pictures and charts to guide pupils to: identify time measuring devices; state the units of time (seconds, minutes and hours) with appropriate symbols;

Pupil’s Activities – Construct and use simple measuring devices.

4. Shows pupils how to use the shadow, water and pendulum clock, hour glass, etc. to measure time.

Pupil’s Activities – Make and calibrate simple clocks.

 

CONCLUSION

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

 

NEXT LESSON – 

 

LESSON EVALUATION

Ask pupils to:

1. devise ways to measure time;

 

2. state the standard units for measuring time;

3. name three instruments for measuring time;

4. use standard instruments to measure time;

5. construct and use simple time devices.