Measuring time in seconds

In this lesson, we will estimate the time it takes to do certain tasks, and then time them using time measuring tools such as stopwatches. We will then compare our estimate with our results to help us determine how long a second is in real time.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.Which of these did not show on Mrs Behan's stopwatch?

1/5

Q2.If Mrs Behan could say 'elephant' 23 times in 20 seconds, roughly how many times could she say 'elephant' in one minute?

2/5

Q3.Which unit of measurement would you choose if you took a flight to China?

3/5

Q4.Would you use a clock or a stopwatch to measure the time it took you to do a lap of a running track?

4/5

Q5.Which unit of measurement would you use to time brushing your teeth?

5/5

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.Which of these did not show on Mrs Behan's stopwatch?

1/5

Q2.If Mrs Behan could say 'elephant' 23 times in 20 seconds, roughly how many times could she say 'elephant' in one minute?

2/5

Q3.Which unit of measurement would you choose if you took a flight to China?

3/5

Q4.Would you use a clock or a stopwatch to measure the time it took you to do a lap of a running track?

4/5

Q5.Which unit of measurement would you use to time brushing your teeth?

5/5

Video

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Worksheet

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Lesson summary: Measuring time in seconds

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