In Year Five, we have been using addition and subtraction to find missing sides on composite rectilinear shapes (shapes made up of quadrilaterals stuck together!) The next step is to then add up the sides to find the perimeter.
In Y5GE, we needed to slow this process down. Yesterday, we spent the whole lesson learning and applying these skills until we found all the missing sides. This clearly paid off because after the lesson and a small piece of purple pen work for some, we did fantastically at it in the beginning of the lesson today.