Pi Day

March 14th- or 3/14 in some calendars-  is Pi Day!

Below is a collection of resources to help you celebrate Pi Day! What is your favourite Pi related activity?

Links and Resources

KS3 Maths - Introducing Pi

This Teachers TV video features a visual way of introducing Pi- by carefully folding the label from any can across its diameter it students find that it fits three and a bit times, as they explore the relationship between the circumference and diameter of different sized cans.

publication year
2000 - 2009

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Investigating Pi

In this Teachers TV 'Buffon's Needle'- first used in 1777- is used to estimate the value of Pi.

The video shows a class of top set Year Nine students to investigate the polygon method for estimating Pi, before introducing them to a scaled down version of Buffon's experiment. A mathematical model is then used to highlight the surprising result of this experiment.

publication year
2000 - 2009

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Circles

These 15 ideas are ideal for use as starter questions, extension question or probing questions to assess understanding.

They require students to perform a practical experiment in order to estimate a value for pi, describe a circle over the phone, find a connection between the length of the radius of a circle and the area of the circle, explore different series giving approximations for pi, investigate problems requiring the calculation of circumference and calculate the number of revolutions per minute of a spinning object.

publication year
2000 - 2009

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Running Tracks

This Cre8ate maths activity gives the opportunity for accurate measurement, scale drawing and calculations involving pi, by inviting students look at how the school running track is marked out and distances are measured accurately for runners in each of the lanes.

If a track is not available, students can investigate where a track could be placed in the school grounds, what is the smallest area required would be or how track lanes are marked accurately.

publication year
2010 to 2019

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Circle Measurement

This SMILE resource contains two packs of games, investigations, worksheets and practical activities supporting the teaching and learning of circle measurement, plus two other related resources.

Circle measurement pack two includes activities that find approximations to pi.

publication year
2000 - 2009

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Maths Careers: Calculating Pi

Pi (π) is the first number we learn about at school where we can’t write it as an exact decimal - it is a mysterious number which has digits which go on forever and has fascinated people for thousands of years.

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