Matthew Mowbray also downloaded hundreds of indecent images of children, as well as superimposing pupils’ faces on to the pictures of naked bodies of unknown children on his computer. He entered boys’ rooms on the pretext of discussing schoolwork before touching them for his own “sexual gratification”, his trial at Reading Crown Court heard.
The 49-year-old father closed his eyes and bowed his head as he was sentenced to five years in jail.
Mowbray, of Locks Heath, Southampton, had pleaded guilty to six counts of making indecent images of children and one count of voyeurism in relation to covertly filmed images showing a boy getting dressed at the school near Windsor.
Last month he was found guilty of eight of nine other charges.
Resident Judge Heather Norton QC said: “You knew that what you were doing was wrong but you continued to take the opportunities afforded to you to abuse children for your own gratification.”
Victim impact statements were submitted as part of the hearing but none were read aloud on the instruction of the boys, the court heard.
Mowbray’s lawyer said he had expressed a “deep and genuine sense of remorse and regret”.