DD has had to miss some of break to finish work, she has slow processing skills, so takes a bit longer than others, but I wouldn't be happy at her missing PE, or ALL break. I would rather her bring work home.
I think some teachers just are 'shouty'!, but it doesn't make it right and I am glad your DH is going in. I would get emotional too!! (what wusses!)
We moved from our Excellent state (which wasn't, but ticked all the boxes!), to an Independent school and two years on, dd still can't believe that the teachers don't shout.
Last year she used to come home nearly everyday and say Mrs R is so lovely mummy, she never ever shouts!, she was absolutely incredulous. OK, there is half the class size, so perhaps not the noise to shout over, but it surely with a good teacher, shouting shouldn't be a daily occurence? I do shout at dd occassionally, so can empathise with teachers that do, but she is my child and not the teachers, so I think it is right to expect a level of professionalism, particularly in a Junior school.
Best of luck, It will be interesting to hear how it goes.