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Christ Church (Erith)

C of E Primary School

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Marvellous Mathematical Measurements 24/01/2020

We used our k'nex equipment to make protractors to demonstrate acute, right, obtuse and reflex angles.


We then drew these onto card to label the different angles we had created.


We then used the same technique to measure angles with a protractor, knowing now the importance of lining up our first line (the red sticks in our models) with the 0 line on the protractor. We could then find where our second line met the measuring side (the yellow stick) and see the angle it had made.