Intermediate
40 mins
Teacher/Student led
+65 XP
Teacher-led from the board. Pupils do not need a device, but can follow on one.

Half Past: the Hour Hand Slips Halfway

This lesson shows you how to set a clock to half past. Place the long hand on 6 and slip the short hand halfway between two numbers. You will practise this with several times and discuss what you notice.

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    Analog clock builder
    Analog clock builder

    1 - Getting Started ~3 mins

    Our classroom clock has a surprise. Half past three is after school. Look at the tall hand: that is the long hand, the minute hand. It points straight down. Where has the short hand slipped to?

    2 - Watch and Notice ~8 mins

    Two half-past times on the board. First find the long hand: at half past it always points straight down to 6. Next look at the short hand. At 3 o'clock it sits on the 3. At half past 3 it has slipped halfway between 3 and 4. Half past means halfway to the next hour, so the short hand has moved halfway too. Check half past 8 the same way.

    3 - Try It Together ~10 mins

    Today we set half-past times on the clock. We will set half past 4, then half past 7, then half past 10 (yard time). Long hand first, straight down to 6. Then slip the short hand halfway between the two numbers so it sneaks toward the next hour.

    Set a half-past time

    4 - Write Half Past 3 in Your Copy ~4 mins

    COPYBOOK MOMENT

    On a printed clock face (or draw a simple clock face in your maths copy), write half past 3. Put the long hand straight down to 6. Put the short hand halfway between 3 and 4.

    5 - Class Challenge ~10 mins

    Today we work through these half-past times together: half past 2, half past 6, half past 9, half past 11. Long hand on 6 every time; watch where the short hand sits. If we have time, half past 12 is lunch.

    Set these half-past times

    Pupil practice
    Module 8 · Time: O'clock and the Calendar Measures
    Lesson 95 · Half Past: the Hour Hand Slips Halfway
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