# Time, Calendar and Date Primary 4 (Basic 4) Term 3 Week 5 Mathematics

### MATHEMATICS

THIRD TERM

WEEK 5

PRIMARY 4

THEME –  PRIMARY MEASURES

PREVIOUS LESSON – Properties, Perimeter and Area of a Square and a Rectangle Primary 4 (Basic 4) Term 3 Week 4 Mathematics

### LEARNING AREA

1. Introduction

2. Telling Time in Hours, Half-hours and Quarter-hours

2. Telling Time in Minutes and Seconds

3. Use the A.m and P.m Notation for the Time of the Day

4. Convert the Unit of Time

6. Solve Word Problems

7. Lesson Evaluation

### PERFORMANCE OBJECTIVES

By the end of the lesson, most pupils should have attained the following objectives –

1. telling time in hours, half-hours and quarter-hours.

2. telling time in minutes and seconds.

3. use the a.m and p.m notation for the time of the day.

4. convert the unit of time.

6. solve word problems.

### ENTRY BEHAVIOUR

The pupils can identify wristwatch, table and wall clock as tools for measuring time.

### INSTRUCTIONAL MATERIALS

The teacher will teach the lesson with the aid of:

1. Real clocks

2. Cardboard clocks

3. Dummy clock

4. Calendars

5. Table of days of the week

### 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

1. Scheme of Work

2. 9 – Years Basic Education Curriculum

3. Course Book

4. All Relevant Material

5. Online Information

### CONTENT OF THE LESSON

#### LESSON 1 – INTRODUCTION

ACTIVITY 1 – TIME

A clock is used to tell time in hour and minute(s).

The face of the clock shows 12 hour clock times with two or three hands.

The long and thick hand on the clock face is called the minute hand.

The short and thick hand on the clock face is called the hour hand.

While the long and thin hand on the clock face is called the second hand.

ACTIVITY 2 – IDENTIFICATION OF CLOCK HANDS

ACTIVITY 3 – USES OF CLOCK AND TIME

Clock is used to tell time while

• Time makes us plan our daily activities well.
• Time is used as a reminder.
• Time is used to set priority.
• Time is money.

ACTIVITY 4 – CLASS EXERCISE

Tell the time for the following:

• Assembly
• Short break
• Long break
• Closing time

ACTIVITY 5 – HOUR TIME

The short hand is on 3 while the long hand is 12.

Therefore, the time is 3 o’clock.

ACTIVITY 2 – CLASS EXERCISE 1

Whenever the long hand is on 12 and the short hand is on any number, the time is that number.

For example – 1 o’clock, 2 o’clock, etc. as shown in the above clocks.

#### LESSON 2 – HALF-HOURS AND QUARTER-HOURS

ACTIVITY 1 – TELLING TIME IN HOUR AND MINUTES

On a clock, the short hand points to the hour, which is usually clearly marked on the clock face in large numbers between 1 – 12.

The long hand points to the minutes.

Each small line on the clock is one minute.

WORKING EXAMPLES

What is the time shown on each clock face in half and hour.

7:41     10:09     6:25     10:10

CLASS EXERCISE

Write down the time shown on each clock face in half and hour.

ACTIVITY 2 – TELLING TIME IN HALF AND HOUR

Watch the hour and minute hand.

The hour hand is mid way between 1 and 2 on clock while the minute hand points to 6.

The time is called half pass 1, meaning 1.30 or 30 minutes pass 1.

CLASS EXERCISE

Write down the time shown on each clock face in half and hour.

ACTIVITY 3 – TELLING TIME IN QUARTER TO AND QUARTER AFTER

Quarter-hour is a period of 15 minutes before or after any hour.

It is a point on 3 or 9.

For example,

At 3, it is quarter past.

At 9 it is quarter to.

CLASS EXERCISE

HOME WORK

DRAWING CLOCK IN HALF HOUR

Draw clock faces for these times.

1. 12:13

2. 7:41

3. Half past 5

4. Twelve o’clock

5. 9.33

6. Quarter to 2

7. Quarter past 5

8. Seven o’clock

9. Quarter past 1

#### LESSON 3 – A.M AND P.M NOTATION AND UNIT OF TIME

ACTIVITY 1 – INTRODUCTION TO A.M AND P. M.

Meridiem (midday), ante (before) and post (after) are Latin terms in a.m. and p.m.

• Meridiem means midday
• Ante means before
• While, post means after

A.m. stands for ante meridiem, meaning before midday.

While, P.m. stands post meridiem, meaning after midday.

A.m. is the period between 12 midnight to 12 midday or noon.

P.m. is the period between 12 midday or noon to 12 midnight.

ACTIVITY 2 – USE A.M. AND P.M. NOTATION

A.m stands for Morning and P.m. stands for Afternoon.

For example,

1. 28 minutes past 9 in the morning is written as 9.28 a.m.

2. Quarter to 5 in the afternoon is written as 5.15 p.m.

CLASS EXERCISE

1. The time when the school assembly begins at ________.

2. The time when the school closes at ________.

3. The time when you have your dinner at ________.

4. The time when you go to bed at ________.

5. The time when daddy comes back from work at ________.

6. The time when we have break at ________.

7. Quarter to 5 in the morning is ________.

8. 19 minutes to 10 in the evening is ________.

9. Half past 4 in the morning is ________.

10. 45 minutes to 1 in the afternoon is ________.

Reference,New Method Mathematics Book 5

ACTIVITY 3 – UNIT OF TIME AND SONG

The unit of time is second.

Other units of time are minute, hour, day, week, month, year and century.

• 60 seconds = _____ minute
• 60 minutes = _____ hour
• 24 hours =_____ day
• 30 days = _____ month
• 12 months = _____ year
• 365 days = _____ year

ACTIVITY 4 – CONVERSION OF UNIT OF TIME

60 seconds = 1 minute

WORKING EXAMPLE AND EXERCISE

1. 60 seconds = _____ minute

2. 120 seconds = _____ minutes

3. 3 minutes = _____ seconds

4. 2½ minutes = _____ seconds

5. 4 minutes = _____ seconds

6. 5 minutes = _____ seconds

7. 120 seconds = _____ minutes

8. 150 seconds = _____ minutes

#### LESSON 4 –  CALENDAR AND DATES

A calendar is a system of organizing time in days, weeks, months and years.

There are 7 days in a week,

Sunday, Monday, Tuesday, Wednesday, Thursday, Friday and Saturday.

There are 30 days has September,

April, June and November.

All the rest have 31,

Except February alone,

Which has 28 days clear

And 29 in each leap year.

There are 52 weeks and 12 months in a year,

January, February, March, April, May, June, July, August, September, October, November and December.

ACTIVITY 2 – DATES

There are different ways to write a date.

For example,

May 7th, 2022 can be written as,

• 7th of May, 2022
• 7th May 2022
• 7/05/2022 or 07/05/2022
• 7 – 05 – 2022 or 07 – 05 – 2022
• 7.05.2022 or 07.05.2022

CLASS EXERCISE

1. The months that have 30 days are: ________, ________, ________, ________.

2. The months that have 31 days are: ________, ________, ________, ________, ________, ________, ________.

3. The month that have less than 30 days is ________.

4. The Independence Day is celebrated in the month of ________.

5. Labour day and democracy day are celebrated in the month of ________.

6. Your date of birth is ________.

7. The months that starts with letter,

• A are ________, ________.
• M are ________, ________.
• J are ________, ________ and ________.
• F, S, O, N and D are ________, ________, ________, ________ and ________.

8. Christmas and boxing day are celebrated in the month of ________ and ________.

9. Workers day and Children’s day is celebrated in the month of ________ and ________.

10. Nigeria gain independence on ________.

LESSON 5 – REVISION AND WEEKLY ASSESSMENT (TEST)

### 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. Teacher organizes pupils in groups or pairs depending on the size of the class.

3. Teacher displays sample of wall and wristwatch.

4. Teacher lets the groups or pairs examine and state their uses.

5. Teacher asks pupils to identify between wall clock, table clock and wristwatch.

Pupil’s Activities – Differentiate between wall clock and wristwatch and their uses.

6. Teacher uses the clock and wristwatch and pupil’s responses to introduce the lesson and discuss the uses of clock – time.

Pupil’s Activities – Pay attention to the lesson introduction.

7. Teacher guides pupils to identify and differentiate between the clock hands.

8. Teacher tells pupils the function of the hands.

Pupil’s Activities – Identify and differentiate between the minute and hour hands.

9. Teacher discuss as he/she guides pupils as groups or pairs to tell time in minutes and hour, half and quarter hours.

10. Teacher guides pupils to draw and indicate different time in minutes and hour, half and quarter hours.

Pupil’s Activities – Draw and indicate different half hour.

11. Teacher discuss the meaning of a.m. and p.m. and guides pupils to use them correctly with appropriate examples and illustrations.

Pupil’s Activities – Make use of a.m. and p.m. appropriately.

12. Teacher guides pupils to convert the unit to time.

Pupil’s Activities – Convert the unit to time.

13. Teacher uses calendar to guide pupils to reading calendar and state the dates correctly.

Pupil’s Activities – Use calendar and dates correctly.

14. Teacher summarizes the lessons on the board with appropriate lesson evaluation.

Pupil’s Activities – Participate activity in the summary of the lesson by responding correctly to the questions and write as instructed.

### 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

Capacity and Its Basic Unit of Measurement | Addition and Subtraction in Litres Primary 4 (Basic 4) Term 3 Week 6 Mathematics

### LESSON EVALUATION

1. say the time on a given cardboard clock or time on the clock drawn on the cardboard.

2. write the time of a given diagram or cardboard on the board/exercise book.

3. name the days of the week.

4. name the day before and after a given day.

5. differentiate between a.m. and p.m.

### ATTEMPT ALL THE QUESTIONS

1. ___________ is used for measuring time.

A. Time

B. Clock

C. Week

2. Clock has many hands ___________.

A. Tree

B. Thirty

C. Three

3. ___________ is thin and long hand.

A. Hour

B. Minute

C. Second

4. ___________ is the short and thick hand.

A. Hour

B. Minute

C. Second

5. ___________ is the long and thick hand.

A. Hour

B. Minute

C. Second

6. Half hour is ___________.

A. 30 minutes

B. 30 hours

C. 30 second

7. Short hand on 7 and long hand on 6 means ___________.

A. half before 7

B. half pass 7

C. half to 7

8. Long hand on 6 and short hand on 3 means ___________.

A. half before 3

B. half to 3

C. half pass 3

9. How many days in a week?

A. Seventy

B. Seven

C. Seventeen

10. Write the day of the following day.

• What day of the week is today? ___________
• What day of the week is yesterday? ___________
• What day of the week is tomorrow? ___________

11. The months that have 30 days are: ________, ________, ________, ________.

12. The months that have 31 days are: ________, ________, ________, ________, ________, ________, ________.

13. The month that have less than 30 days is ________.

14. The Independence Day is celebrated in the month of ________.

15. Labour day and democracy day are celebrated in the month of ________.

16. Your date of birth is ________.

17. The months that starts with letter,

• A are ________, ________.
• M are ________, ________.
• J are ________, ________ and ________.
• F, S, O, N and D are ________, ________, ________, ________ and ________.

18. Christmas and boxing day are celebrated in the month of ________ and ________.

19. Workers day and Children’s day is celebrated in the month of ________ and ________.

20. Nigeria gain independence on ________.