Hi, I am a mum with 2 children at a private school in London. I am frustrated by how little I know about what my kids are doing at school on a daily basis. What tests they have done, how they have done them, what mistakes they have made, how they behave, what their strengths/weaknesses are, schedule changes at school or after school clubs.
I think you need to ask yourself what your expectations of the school regarding communications are and whether they are reasonable. You could contact the school and ask for their communications policy, but they are unlikely to have one.
As a parent, I would expect to be kept informed of schedule changes, but I ask my child myself about their day and how they are getting on. I would expect the school to comment in parents' evenings (3x year) on their abilities, but only expect extra communication if anything was a cause for concern e.g. behaviour or problems with learning.
As a teacher I don't communicate with parents about the day to day work of assessment/testing and targets/areas we are working on as I'd never be done communicating....it is a constant process. I am quite happy, however, for any parent to call in and make an appointment to discuss their child's progress should they want to. I have also had parents help out in my class because they have been quite anxious/interested/(obsessed!) with how their child is getting on compared to their peers.
Chill! Ask your child. Reflect on your expectations. Contact the school for a meeting.