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St Mary's Primary School Pomeroy

P7 investigate the circle.

21st Mar 2023

P7 took on the role of the farmer today and investigated the tyre of a tractor.  They have been learning about the different parts of the circle and put their knowledge to the test investigating how they could accurately measure the circumference.  Patrick and Ryan had a wow idea to use rope or string to measure the circumference and then measure the string. We put their method to the test.  After investigating the circumference there was a little wonder about pie!  Using pie we then checked if our measuring was accurate.  We were able to use the formula 2 x 3.14 x radius to check! We were pretty impressed that our measurements were accurate and loved proving this using pie!  We also learned that 3.14 was a rounded number for pie so our measurements weren’t fully accurate but very close.  We also enjoyed being farmers!