"My message to schools is this - keeping children safe from harm should always be your overriding concern but in doing so make sure you distinguish between real and imagined risk.
"Trying to insulate your pupils from every bump, germ or bruise won't just drive you to distraction, it will short-change those pupils as well, limiting their opportunity to fully take advantage of the freedom of childhood and to explore the world around them."
Next month, 1,800 school inspectors will take part in sessions to ensure they focus only on the safeguarding of vulnerable children.
Ms Spielman said she looked forward to seeing more eager young faces on trips in the next school year but hopes "fewer of them will be auditioning for Bob the Builder".