Presents,presents everywhere!

We carried out a practical investigation in Year 5 (Oak photos). We had to work out the total perimeter and surface area of wrapping paper needed to wrap up items without any overlapping paper.

We discussed ideas with our groups and created our nets in Oak Class

Some of us checked our nets to see if they were accurate or needed to be amended.

Then we measured objects and noted all dimensions.

Using this information we discussed how to calculate total perimeter and total surface area and then wrote our calculations in our books.

We then peer marked (Oak) work in groups to check if calculations and diagrams were accurate and easy to understand.

Numerically Equal!

When introducing the problem to Year 5 (Oak) we discussed that numerically equal would not be the same measurement and the difference between area and perimeter.

Now children worked in pairs to talk through their ideas of solving the problem and the option of using squared paper to try out the problem.

It was interesting to listen to how the pairs were working on the problem. Most pairs used squared paper. Some drew a variety of squares chosen randomly until they reached an answer. Some were more systematic and drew squares and calculated area/perimeter until they found one that worked-See pictures: