This picture was duplicated as 53010 and wrongly titled "1953" - thanks to Stuart Tann for spotting it!

..and from Valerie Fry:
Just to add to the problem Do not think this photo is 1949/50. Lesley Grimmett ID907 says she left school in 1955. She says Noel her brother, was a year above her. He and I were in the same class and we left in 1954. I think the photo was 1952 or 1953. The children look older than the first year so it could have been 1953. I think the teacher may be Miss Barker.
and……
A little detective work!
Just had an idea and checked what the teacher was wearing in 1953 and it looks like the same dress but different shoes - perhaps she changed into her best ones for the photo. It is Miss Barker, who was my 1st year teacher but she doesn't seem to have been there long. I really thought she was very nice.
With thanks to Stuart Tann and Lesley Grimmett
Amendment thanks to: Emma Miles (Ann Baker's daughter), David Morris, John Burton, Valerie Fry, George Hunt