Hi stemeducation:
DD1 in Y5 aged 10 now and from our experience STEM gets very little time at primary school.
Maths homework 10 minutes a week - DD1 was struggling we went off plan and joined Mathsfactor because school was only sending home pattern work (colouring in cars, caterpillars, train cars, etc....) for most Y1 & Y2. All children on 'top table' do maths work at home and find school merely review of concepts they already know.
Science: basically given an afternoon a week + forest school. I'd say it's introducing concepts and some experiments. DD1 enjoys this - but often find that it isn't very well linked into further work (reading, literacy, homework, etc...)
Engineering: School is expanding and currently a great deal of building work going on - yet they aren't really exploring any of that - hydraulic systems, working out number of bricks for facing of building, curve of roof, carrying capacity of crane, etc...
Technology: after school computer club - but very little mechanical engineering/ physics/ construction component at school. Building a little robot or something would be fantastic. D&T is usually arts and crafts to be honest.
Find it very sad to be based in an area with such a rich history of engineering - and yet so little is done to discuss it. Trains, canals, sewage systems, etc... all taken for granted without any real appreciation for the amazing engineering achievements these are.