1. Time

2. Today we will be learning:
to solve word problems involving time
to use and understand words about time.

3. We are going to solve problems involving doubling and halving.
Mental Activity
We are going to solve problems involving doubling and halving.
It takes Ali 20 minutes to sharpen the pencils. Megan does it in half the time. How long does it take Megan?
10 minutes

4. A football match lasts for 90 minutes
A football match lasts for 90 minutes. After how many minutes is it half time?
45 minutes
A driver has completed half of his journey in 35 minutes. How long should the whole journey take?
1 hour and 10 minutes

5. A television programme is half-way through after 25 minutes
A television programme is half-way through after 25 minutes. How long is the programme?
50 minutes
Richard runs 5 kilometres in 46 minutes. Sam does it in half the time. How long does it take Sam?
23 minutes

6. Today we are going to work further on time.
Main Activity
Today we are going to work further on time.

7. Here is an analogue clock.
What time does it show? 12 10 11 6 5 4 2 1 3 7 8 9
Half-past twelve

8. Can you read this time? 12 10 11 6 5 4 2 1 3 7 8 9
Five o’clock

9. What time does this clock show?12 1 11 10 2 9 3 8 4 7 5 6
A quarter past nine

10. What about this clock? 12 1 11 10 2 9 3 8 4 7 5 6
A quarter to seven

11. An analogue clock is divided into units of five minutes.45 12 10 11 6 5 4 2 1 3 7 8 9 55 50 40 35 30 25 20 15
An analogue clock is divided into units of five minutes.

12. If we start at 10:15, how many minutes have passed by 10:35?5
If we start at 10:15, how many minutes have passed by 10:35? 12 55 1 11 50 10 10 2 9 3 45 15 8 4 40 20
20 minutes 7 5 6 35 25 30

13. A programme finished at 4 o’clock.
A programme finished at 4 o’clock.
It lasted 15 minutes.
At what time did it start? 5 12 55 1 11 50 10 10 2 3 45 9 15 8 4 40 20 7 5
3:45 6 35 25 30

14. Sarah started to walk to school at 8:50
The journey lasted for 25 minutes.
What time did she get to school? 5 12 55 1 11 50 10 10 2 3 45 9 15 8 4 40 20 7 5 6 35 25
9:15 30

15. James finished his work at 10:40
James finished his work at 10:40
It took him 15 minutes.
At what time did he start? 5 12 55 1 11 50 10 10 2 3 45 9 15 8 4 40 20 7 5
10:25 6 35 25 30

16. Group Work
Work on “real life” problems involving time.
Work in pairs. One person gives a time and the other must move the clock hands to show the time.