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Step 1:
Discuss and understand the usage of time ladder

Step 2:
Explanation of the relationship between the units of time
a. 1 minute = 60 seconds
i. Use an analog clock with all the second, minutes and hour hands intact.
ii. Switch on the clock and ask the students to observe the movement of the second hand.
e.g. Each complete rotation from number 12 to number 12 is one minute.
1 minute = 60 seconds
b. 1 hour = 60 minutes
i. Move the minute hand of the clock to make a complete rotation.
ii. One complete rotation of the minute hand is equals to one hour.
1 hour = 60 minutes
c. 1 day = 24 hours
i. Move the minute hand to rotate and observe the movement of the hour hand.
ii. Start from 12 midnight, 1 a.m., 2 a.m., 3 a.m., 4 a.m. and end at 12 midnight.
iii. Let the students count the number of rotations done by the minute hand.
1 day = 24 hours
iv. 24 rotations means 24 hours.
d. 1 week = 7 days
i. Recall the days of the week
1 week = 7 days
ii. Count the numbers of days
e. 1 month = 30 days
i. By using a calendar, count the days in each month.
1 month = 30 days
ii. Make a brief explanation about the number of days in each.
f. 1 year = 12 months
1 year = 12 months
Name the months in a year from a calendar.
g. 1 year = 365 or 366 days
i. By using a calendar, sum up the days in a specific year.
1 year = 365 days
1 leap year = 366 days
ii. Use the calendar and explain the reasons for having 366 days in a leap year.
h. 1 decade = 10 years
1 decade = 10 years
Explain the meaning of decade by using a chart.
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