Telling time

1
Telling time

• Lets review what you already know..

2
You know that the clock has two hands. The long
hand is the minute hand and the short hand is the
hour hand.

3
You also know that there are 12
numbers placed around the face of the clock.
Each number stands for a certain number of
minutes past the hour. If you know how to count
by 5s then you know how to figure out how many
minutes past the hour it is.
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• For example When the minute hand is on the 6,
  that means that it is 30 minutes past the hour .
  We can use multiplication to help out too. 6 X 5
  30

5

• Keep going.youre doing a great job..

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More clock 5s

• If the minute hand is on the 3, how many minutes
  past the hour is it?
• 15
• How about on the 8?
• 40
• How about on the 5?
• 25
• How about on the 7?
• 35
• How about on the 11?
• 55

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• The minute hand goes around once for every hour.
  When the minute hand is on the 12, the hour hand
  is pointing exactly at an hour. When it has gone
  exactly between the hours, it is called
  half-past the hour. When the minute hand
  points to the 3, it has gone a quarter of the way
  around, so its a quarter past the hour.

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• Now you are really sailing through this
  activitykeep up the good work.

9

• An hour is 60 minutes, a quarter of that is
  15minutes. So our quarter past 4 is the same
  as 15 minutes past 4. Thats what it means when
  the minute hand points at the 3 on the clock. It
  is written as 415. The 4 is the last number the
  hour hand pointed at, and the 3 is the number the
  minute hand points at.

10

• Lets say that the hour hand is past the 1, in
  fact more than halfway to the 2, the minute hand
  points to the 7, meaning that its 35 minutes
  past the hour. Thats a little more than
  half-past one.
• You can also call this 25 before 2.

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How do you know that?

• You can count by fives while you imagine the
  minute hand continues around to the 12. It will
  take 5 minutes to get to the 8, 10 to get to the
  9, then 15, 20, 25 minutes to get to the 12. So
  its 25 minutes until the next hour, which is 2.

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• The hardest times to read are when its just
  before an hour. Thats when its important to
  understand how the hour hand moves. Suppose its
  just five minutes before 2 oclock. Then the
  hour hand is also at the 2, and the minute hand
  is at the 11. But we read this as 155, not
  255, because its 55 minutes after 1 and 5
  minutes before 2.

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We are almost finished

• You are amazing..I knew you could do it.

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• The last step will be to learn to read minutes
  between the fives. That can wait until youre
  ready. Its best if you have a clock that has a
  little mark at every minute. Usually we dont
  need to be that exact. If the minute hand points
  near the 7, but not exactly, you can say its
  about 135.

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The big numbers

• The big numbers on the clock tell what number
  hour it is when the hour hand points there, but
  each one also stand for five minutes. It will be
  helpful to get a clock with the minute markings
  on it. Once you get used to it, you should be
  able to imagine the minute numbers around the
  outside, by just counting by fives.

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• Our time is up for today. Now all you have to do
  is to practice the skills you have learned.