Longman Dictionary of Contemporary English
lower school
noun
EXAMPLES FROM CORPUS
▪ Consequently children in that school follow aspects of the arts throughout their time at the lower school.
▪ During the lower school period there are no grades on these report slips.
▪ Kirkby firemen prevented flames reaching the lower school annexe and nursery school, where classes continued close to normal for 140 youngsters.
▪ Meanwhile Pope, the master of the Lower School, had been compelled to resign through ill-health at the end of 1854.
▪ Mr Brown has been Head of the Lower School for six years.
▪ Naturally for reasons of economy - some boys were deterred from progressing and continued in the Lower School, wasting their time.
▪ We were asked to sit in the third and fourth rows and the lower school children filed in.