Grasp Maths

Year 3

Estimate and read time with increasing accuracy to the nearest minute

Read analogue clock times more precisely to the nearest minute.

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Lesson overview

Time

On an analogue clock, each number is 5 minutes apart, but each small minute mark counts as 1 minute. Reading to the nearest minute means using the exact minute mark, not only the nearest 5 minutes.

Read between the fives

The minute hand does not always land exactly on a number.

123456789101112
2:17

Count the small minute marks after the nearest 5-minute point.

Estimate first

A quick estimate helps before reading the exact minute.

123456789101112
about quarter to 10, exactly 9:43

Estimate the nearest 5 minutes, then refine to the exact minute.

The hour hand moves too

The hour hand creeps forward as the minutes pass.

123456789101112
5:28

The hour hand is not fixed exactly on the number except at o'clock.

Worked example

Read the time when the minute hand is 3 small marks after the 4 and the hour hand is between 1 and 2.

123456789101112
1:23
  1. The 4 on the clock means 20 minutes.
  2. Three more minute marks make 23 minutes.
  3. The hour hand is between 1 and 2, so the hour is 1.
  4. So the time is 1:23.

Try it

Estimate the nearest 5-minute point first, then count the extra minute marks carefully.

Question 1

What time is shown?

123456789101112
?
Question 2

What time is shown?

123456789101112
?
Question 3

Write the minute number in 9:43.

Question 4

Which time is about quarter to 10?

123456789101112
about quarter to 10
Question 5

Why do we estimate first?

Common mistakes

Watch for these when working through the lesson.

  • Reading only the nearest 5 minutes and ignoring the extra marks.
  • Using the next hour instead of the current hour for past times.
  • Counting from the wrong 5-minute point.

Related topics

These ideas fit closely with this lesson.

  • Tell and write the time from 12-hour and 24-hour clocks.
  • Record and compare time in terms of seconds, minutes and hours.

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