About that weekly practise sheet: doing the other strands
I don't know how you cover measurement, geometry at your school, but it seems to me that however you do it, the children can easily forget the vocabulary. I mean how often do you hear children using words like symmetry or net in their casual conversations!

My class are enjoying this other aspect, but had forgotten for example, symmetry. I know this was covered last year because I saw lots of practical investigations in their classes on this. It's the vocabulary acquisition problem.
I just set up some geoboards and pegs on a table and a few children started making symmetrical patterns etc - that got the buzz going and they remembered the concept. Now I'm hoping that when we focus on geometry in term 4, we can move on developing the concept. I'm hoping they will be more confident about using the vocab as they discuss their investigations.
Here's hoping.