Measurement of Time Basic Science Primary 3 First Term Lesson Notes Week 4

Basic Science Primary 3 First Term Lesson Notes Week 4

Subject: Basic Science
Class: Primary 3
Term: First Term
Week: 4
Age: 8 years
Topic: Measurement of Time
Sub-topic: Meaning and Instruments of Measuring Time, Standard Metric Units of Time, Specified Activities Within Specified Time Frame
Duration: 40 minutes

Behavioural Objectives

By the end of the lesson, pupils should be able to:

1. Mention the methods of obtaining time from their past experiences.
2. Explain the meaning of time.
3. Mention instruments for measuring time.
4. Identify the units of measuring time (seconds, minutes, hours, days, weeks, months, and years).
5. Discuss how specified tasks are performed within specified time frames.

Keywords

• Time
• Clock
• Stopwatch
• Second
• Minute
• Hour
• Day

Set Induction

The teacher will show a clock and a stopwatch and ask the pupils what they think these tools are used for.

Entry Behaviour

Pupils have seen clocks and other time-measuring tools in their everyday lives.

Learning Resources and Materials

• Clock
• Stopwatch
• Calendar

Building Background/Connection to Prior Knowledge

Discuss instances where pupils have observed or used time to perform activities at home or in school.

Embedded Core Skills

• Measurement
• Time Management
• Observation

Reference Books

• Lagos State Scheme of Work
• Basic Science Textbook for Primary 3

Instructional Materials

• Clock
• Stopwatch
• Calendar

Content

1. Meaning of Time

• Time is the ongoing sequence of events taking place.

2. Instruments for Measuring Time

• Clock: Used for measuring hours and minutes.
• Stopwatch: Used for measuring short periods of time.
• Calendar: Used for measuring days, weeks, months, and years.

3. Standard Metric Units of Time

• Second (s): The smallest unit of time.
• Minute (min): 60 seconds make 1 minute.
• Hour (hr): 60 minutes make 1 hour.
• Day: 24 hours make 1 day.
• Week: 7 days make 1 week.
• Month: About 30 days make 1 month.
• Year: 12 months make 1 year.

4. Specified Activities Within Specified Time Frame

• Example: Completing homework in 30 minutes, playing for 1 hour, etc.

Evaluation

1. Time is the ongoing sequence of _____ taking place.
   a) events
   b) days
   c) months
   d) years
2. A _____ is used to measure hours and minutes.
   a) calendar
   b) clock
   c) ruler
   d) balance
3. A _____ is used to measure short periods of time.
   a) clock
   b) calendar
   c) stopwatch
   d) scale
4. The smallest unit of time is the _____.
   a) minute
   b) second
   c) hour
   d) day
5. Sixty seconds make one _____.
   a) hour
   b) minute
   c) day
   d) week
6. Sixty minutes make one _____.
   a) day
   b) week
   c) hour
   d) month
7. Twenty-four hours make one _____.
   a) week
   b) month
   c) hour
   d) day
8. Seven days make one _____.
   a) week
   b) month
   c) year
   d) hour
9. About thirty days make one _____.
   a) week
   b) month
   c) year
   d) day
10. Twelve months make one _____.
    a) week
    b) month
    c) year
    d) day
11. A _____ is used to measure days, weeks, months, and years.
    a) clock
    b) calendar
    c) stopwatch
    d) ruler
12. Completing homework in 30 minutes is an example of a task within a _____.
    a) second
    b) minute
    c) time frame
    d) week
13. Playing for 1 hour is an example of an activity measured in _____.
    a) days
    b) weeks
    c) hours
    d) seconds
14. We use a _____ to know the time of the day.
    a) calendar
    b) clock
    c) stopwatch
    d) ruler
15. One year has _____ months.
    a) 6
    b) 8
    c) 10
    d) 12

Class Activity Discussion

1. What is time?
   Time is the ongoing sequence of events taking place.
2. What tool is used to measure hours and minutes?
   A clock is used to measure hours and minutes.
3. What tool is used to measure short periods of time?
   A stopwatch is used to measure short periods of time.
4. What is the smallest unit of time?
   The smallest unit of time is the second.
5. How many seconds are in one minute?
   There are 60 seconds in one minute.
6. How many minutes are in one hour?
   There are 60 minutes in one hour.
7. How many hours are in one day?
   There are 24 hours in one day.
8. How many days are in one week?
   There are 7 days in one week.
9. How many days are in one month?
   About 30 days are in one month.
10. How many months are in one year?
    There are 12 months in one year.
11. What tool is used to measure days, weeks, months, and years?
    A calendar is used to measure days, weeks, months, and years.
12. What is an example of a task within a specified time frame?
    Completing homework in 30 minutes.
13. What is an example of an activity measured in hours?
    Playing for 1 hour.
14. How can we know the time of the day?
    We can know the time of the day by looking at a clock.
15. Why do we measure time?
    We measure time to organize and plan our activities.

Presentation

Step 1: The teacher revises the previous topic which was the measurement of mass.

Step 2: The teacher introduces the new topic by showing a clock and a stopwatch, and explaining their uses.

Step 3: The teacher allows the pupils to give their own contributions and corrects them when and where necessary.

Teacher’s Activities

• Show and explain the use of clocks, stopwatches, and calendars.
• Demonstrate measuring time for various activities.
• Ask questions to check understanding.

Learners’ Activities

• Answer questions.
• Participate in measuring time.
• Record times for various activities.

Assessment

• Oral questions and answers.
• Practical measurement activities.

Evaluation Questions

1. What is time?
2. What tool do we use to measure hours and minutes?
3. What tool do we use to measure short periods of time?
4. What is the smallest unit of time?
5. How many seconds are in one minute?
6. Measure the time it takes to complete a task.
7. Measure the time it takes to run a short distance.
8. Why might some tasks take longer than others?
9. What is longer, a minute or an hour?
10. How can you use a stopwatch to measure time?

Conclusion

The teacher goes around to mark the pupils’ work and provides feedback.

More Useful Links

• Revision of Basic 2 work Basic Science Primary 3 First Term Lesson Notes Week 1