Sayer Street ran from the Old Kent Road to Deacon Street. Looking at the 1933 picture, and on the left pass the tall buildings, I believe that is where the school was.
Blitzed shell of Sayer Street School eating egg and bacon supplied by American aid, c1941.
Sayer Street SE17, c1933, looking towards the New Kent Road. Weymouth Dwellings at the far end on the right, with the Weymouth Arms Pub far end left.