Time Basic 3 Mathematics Lesson Note

A. COUNTING SKILL: NUMBERS 901-920

Counting from 901 to 920: 901, 902, 903, 904, 905, 906, 907, 908, 909, 910, 911, 912, 913, 914, 915, 916, 917, 918, 919, 920

Practice counting:

• From 905 to 915: _______
• From 912 to 920: _______
• Backwards from 920 to 910: _______

Fill in missing numbers:

• 906, 907, _____, 909, _____
• 915, _____, 917, _____, 919
• _____, 902, _____, 904, _____

B. WRITING SKILL: WRITING OF THE NUMBERS

Write in words:

• 901 = Nine hundred and one
• 905 = Nine hundred and five
• 910 = Nine hundred and ten
• 915 = Nine hundred and fifteen
• 920 = Nine hundred and twenty

Write in figures:

• Nine hundred and three = _______
• Nine hundred and eight = _______
• Nine hundred and twelve = _______
• Nine hundred and seventeen = _______
• Nine hundred and nineteen = _______

C. READING TIME ON A CLOCK

Parts of a clock:

• Hour hand (short hand) – shows hours
• Minute hand (long hand) – shows minutes
• Numbers 1-12 around the clock face

Reading o’clock times: When the minute hand points to 12 and hour hand points to a number:

• Hour hand at 3, minute hand at 12 = 3 o’clock
• Hour hand at 7, minute hand at 12 = 7 o’clock
• Hour hand at 10, minute hand at 12 = 10 o’clock

Reading half past times: When the minute hand points to 6:

• Hour hand between 2 and 3, minute hand at 6 = half past 2
• Hour hand between 5 and 6, minute hand at 6 = half past 5

Practice reading times:

1. Hour hand at 4, minute hand at 12 = _____ o’clock
2. Hour hand at 8, minute hand at 12 = _____ o’clock
3. Hour hand between 1 and 2, minute hand at 6 = half past _____
4. Hour hand between 9 and 10, minute hand at 6 = half past _____

Digital and analog time:

• 3:00 = 3 o’clock
• 6:30 = half past 6
• 11:00 = 11 o’clock
• 2:30 = half past 2

Match the times:

1. 5 o’clock = _____:00
2. Half past 8 = _____:30
3. 12 o’clock = _____:00
4. Half past 3 = _____:30

D. CALENDAR READING

Days of the week (7 days): Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday

Months of the year (12 months): January, February, March, April, May, June, July, August, September, October, November, December

Weeks and months:

• 1 week = 7 days
• 1 month = about 4 weeks
• 1 year = 12 months = 52 weeks

Practice:

1. What day comes after Tuesday? _______
2. What day comes before Friday? _______
3. What month comes after March? _______
4. What month comes before December? _______

Sample calendar:

   MARCH 2025

S  M  T  W  T  F  S

                  1

2  3  4  5  6  7  8

9 10 11 12 13 14 15

16 17 18 19 20 21 22

23 24 25 26 27 28 29

30 31

Reading this calendar:

1. March 5th is on a _______ (day of week)
2. The first Sunday in March is March _____
3. March has _____ days
4. March 15th is on a _______

E. DATE READING ON A CALENDAR

How to write dates:

• Day/Month/Year format: 15/03/2025
• Word format: 15th March, 2025
• Short format: March 15, 2025

Understanding dates:

• 15th March, 2025 means:
  1. Day: 15th
  2. Month: March (3rd month)
  3. Year: 2025

Practice writing dates:

1. 5th April, 2025 = 5/___/2025
2. 12th June, 2025 = ___/6/2025
3. 20/08/2025 = 20th _______, 2025
4. 3/12/2025 = 3rd _______, 2025

Calendar questions: Using the March calendar above:

1. What day of the week is March 10th? _______
2. What date is the third Tuesday in March? _______
3. How many Fridays are in March? _______
4. What day comes after March 15th? _______

F. QUANTITATIVE REASONING

Time word problems:

1. School starts at 8 o’clock. Lunch is at half past 12. How many hours between start and lunch?
2. Kemi wakes up at 6 o’clock. She goes to bed at half past 8. How long is she awake?
3. If today is Wednesday, what day will it be in 3 days?
4. If this month is April, what month will it be in 2 months?

Calendar calculations:

1. How many days are there from March 10th to March 15th? _______
2. If today is March 5th, what date will it be in one week? _______
3. How many weekends (Saturdays and Sundays) are in the March calendar above? _______

Time patterns:

1. 2 o’clock, 3 o’clock, 4 o’clock, _____, _____
2. Monday, Tuesday, Wednesday, _____, _____
3. January, February, March, _____, _____

Real-life time problems:

1. Ada’s birthday is on June 15th. If today is June 10th, how many days until her birthday?
2. A movie starts at half past 7 and ends at half past 9. How long is the movie?
3. If you go to bed at 8 o’clock and wake up at 6 o’clock, how many hours do you sleep?

Duration problems:

1. From 3 o’clock to 5 o’clock = _____ hours
2. From Monday to Friday = _____ days
3. From January to March = _____ months

CLASS EXERCISES

1. Count from 908 to 918:
2. Write in words:
   1. 907 = _______
   2. 913 = _______
   3. 920 = _______
3. Write in figures:
   1. Nine hundred and eleven = _______
   2. Nine hundred and sixteen = _______
4. Read these times:
   1. Hour hand at 6, minute hand at 12 = _____ o’clock
   2. Hour hand between 4 and 5, minute hand at 6 = half past _____
   3. 9:00 = _____ o’clock
   4. 7:30 = half past _____
5. Days and months:
   1. What day comes after Saturday? _______
   2. What month comes after July? _______
   3. How many days in a week? _____
   4. How many months in a year? _____
6. Write these dates:
   1. 8th May, 2025 = ___/5/2025
   2. 25/12/2025 = 25th _______, 2025
7. Calendar reading: Look at the March calendar and answer:
   1. What day is March 20th? _______
   2. What date is the second Monday? _______
8. Time problems:
   1. If today is Tuesday, what day will it be tomorrow? _______
   2. How many hours from 2 o’clock to 6 o’clock? _______
   3. If this month is September, what month is next? _______
9. Duration:
   1. From half past 3 to half past 5 = _____ hours
   2. From Wednesday to Saturday = _____ days
10. Problem solving: Tolu’s school starts at 8 o’clock and ends at half past 2. His lunch break is from 12 o’clock to half past 12. How many hours is he in school (including lunch break)?