Mathematics
Intermediate
50 mins
Teacher/Student led
+80 XP
What you need:
IWB/Projector/Large Screen

Telling Time to 5-minute Intervals

Learn to tell the time to five-minute intervals by counting round the clock face and deciding whether minutes are past or to the hour.

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    1 - Getting Started ~4 mins

    Illustration for Getting StartedLook at the clock on the screen. We are going to point to each number, one after the other, starting at the 12. As we touch each number, say the count with me: 5, 10, 15, 20, all the way round to 60.

    Here is the puzzle: there are only twelve numbers on the clock, but a whole hour has sixty minutes. So why does each number stand for five minutes, and not just one?

    2 - Watch and Notice ~9 mins

    Illustration for Watch and Notice

    Ten past 3

    Watch the clock. The short hand is just past the 3, so the hour is 3. The long hand is on the 2. We count round in fives from the 12 to the 2: 5, 10. That is ten minutes, so the time is ten past 3.

    Twenty-five past 7

    Now the short hand is just past the 7. The long hand has reached the 5. Count round in fives: 5, 10, 15, 20, 25. Twenty-five minutes have passed, so this is twenty-five past 7.

    Twenty to 10

    The long hand has gone past the 6 and is climbing up the left side to the 8. When the long hand is on the left, we count the minutes still to go to the next hour. From the 8 round to the 12 is 20 minutes, so this is twenty to 10.

    Five to 12

    The long hand is right up near the top, on the 11. There are just five minutes left to reach the 12, so this is five to 12.

    Half past and quarter to

    Two five-minute times have special names. When the long hand points straight down at the 6, we count 5, 10, 15, 20, 25, 30 — thirty minutes past the hour. Thirty minutes is half the hour, so we say half past. This clock shows half past 1.

    When the long hand points at the 9, there are 15 minutes still to go to the next hour. Fifteen minutes is a quarter of the hour, so we say quarter to. This clock shows quarter to 8.

    3 - Try It Together ~11 mins

    Now we set five-minute times on the clock ourselves. When a time is named, one of you comes to the board and drags the long hand to the right number while the rest of us count round in fives to check.

    We will try: half past 1, twenty past 4, quarter to 8, and five past 11. We met half past and quarter to on the board a moment ago — now we set them ourselves. For each one, look at where the long hand lands. If it has not yet passed the 6, we count minutes past the hour. If it has crossed the 6 and is climbing the left side, we count minutes to the next hour.

    Set the time together

    4 - Write the Times in Your Copy ~5 mins

    COPYBOOK MOMENT

    We write times in words like this: twenty past 4, five to 9 — the minutes first, then 'past' or 'to', then the hour number.

    Here are four clock faces — Clock 1 to Clock 4, in order down the screen. In your maths copy, write one line for each clock: the clock's name, then the time it shows, in words. Before you write each one, check which side the long hand is on: right side means a 'past' time, left side means a 'to' time.

    5 - Class Challenge ~8 mins

    Today we work through these times together at the board: ten past 4, twenty-five past 9, twenty to 6, then five to 1. The 'to' times catch people out, so we will say each one aloud and count the fives before we check it.

    Read the five-minute time

    6 - What Did We Notice? ~2 mins

    MATHS TALK

    When the long hand is past the 6, why do we start saying 'to' the next hour instead of 'past'?

    7 - What's Next ~3 mins

    What we learned today

    • Each number on the clock is five minutes further round, so we count in fives to read the minutes.
    • When the long hand is on the right, we count minutes past the hour.
    • Once the long hand passes the 6, we count minutes to the next hour.

    Coming up

    Next we will match the time on a clock face to the numbers on a digital display, so we can read both kinds of clock.

    Pupil practice
    Module 6 · Time and Money Shape & Space
    Lesson 61 · Telling Time to 5-minute Intervals
    Download Activity Book page (PDF)
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