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Wednesday 29th April

Wednesday 29th April


Good morning Year 6!


As promised, a practical activity for today's lesson about circles. Here's what I'd like you to do. First, choose one of your objects to draw around, on paper, or in your maths book. Next you are going to do some measurements. Before doing this, do some writing next to your circle so that you are ready to record your measurements, like this:

To help you to measure the circumference and diameter of your circle, watch this YouTube video. The circumference is a curved line, so you will need string to help you to measure this distance. The diameter can be measured with your ruler, because it's a straight line. You need to measure as accurately as you can, using decimals if you need to. I suggest you use cm as your unit of measurement. So for example, you may get a measurement of 8.6cm for a diameter - you need to be very accurate. Here's how:

Measuring Circumference and Diameter

After you've done the two measurements, divide the circumference by the diameter. You can use a calculator to do the division. You'll probably get lots of decimals in your answer, just use the first 3 decimal digits when you record your result.


You can then repeat the activity with the other circular objects that you've found to draw around. What do you notice about your results? If you have access to email, you could email me your results to my school email address, which is:


If you do email me, it would be helpful if you all used the same format to send the results. You could record them like this in the email:


Object 1: A cup

Circumference: 27.5

Diameter: 8.7cm

Circumference ÷ diameter = 3.16


I'll post up some of the results on tomorrow's page, and you'll be able to compare your results with other Year 6 children's work. So today, just the practical work, and then tomorrow, I'll comment on the results and what they can tell us about circles.


Thanks for doing this lesson! Mr M.