Open the slideshow and observe how we can measure time. Prepere a clock.

Read the hourhourhour presented on the clock in the Fig. 1 and write it with at least three ways. Draw an electronic watch showing the same hour as the clock in the Fig.1.

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Zegar, wskazówka godzinowa na 5, minutowa na 3.

How much time passed from the hour 8:00 till the hour 14.20? Analyse the example.

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Graf przedstawia zapis 8:00, dodać 6 h, 14:00, dodać 20 min, 14:20. Pod spodem 6 h 20 min.

Calculate how much time passed:

a) from the hourhourhour 16:15 till the hour 16:28
b) from the hour 14:05 till the hour 14:54
c) from the hour 15:55 till the hour 16:20
d) from the hour 8:05 till the hour 17:35
e) from the hour 23:10 till the hour 06:15

Write how many minutes is:

a) 1 h 25 min
b) 3 h 5 min
c) 2 h 48 min

Write how many hours and minutes is:

a) 85 min
b) 126 min
c) 360 min

Calculate how many hours and minutes is:

a) 50 min + 36 min
b) 124 min + 15 min
c) 290 min + 30 min

Calculate how many hours and minutes is:

a) 2 h 30 min + 1 h 16 min
b) 3 h 24 min + 5 h 15 min

In the picture there is a graph illustrating the solution of the following exercise:
Calculate what time is now, if 5 hours 15 minutes passed from the hour 7:45.

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Graf przedstawia zapis 7:45, dodać 5 h, 12:45, dodać 15 min, 13:00, dodać 5 min, 13:05. Pod spodem 20 min równa się 15 min dodać 5 min.

In the same way, calculate what time will be after:

a) 1 hourhourhour 35 min passes from the hour 6:40
b) 2 hour 45 min passes from the hour 14:40

An extra task:

Tomek was sleeping from 21.05 till 7.15. How much time did he sleep? What time did he leave for school, if taking a shower and eating a breakfast took him 25 min?

Mateusz’s training lasted 1 hour and 45 minutes. It ended at 5.50. What time did the training start?

Look for various ways of measuring time through the ages. Write a short note in English.