HC Deb 10 May 1957 vol 569 c92W
Mr. Sydney Irving

asked the Parliamentary Secretary to the Ministry of Education what percentage of the primary and secondary school population was being taught in classes of over 40 and 30 respectively on 1st January for the years 1951 to 1954.

Sir E. Boyle:

The figures are:

January Percentage of junior children taught in classes of more than 40 Percentage of senior children taught in classes of more than 30
1951 36.9 61.3
1952 39.9 60.1
1953 42.8 58.2
1954 41.7 58.1