Prince Williams joined pupils in Llanfoist near Abergavenny as part of The Prince William Award scheme.
It aims to help children develop good character, confidence and resilience.
More top news
Two soldiers were killed after a tank explosion died after "a design flaw went undetected" on the vehicle's gun barrel, says coroner.
A mix of warm sunshine today and patchy showers in places!
They include measures to protect children, strengthen NHS governance, reform local government and lower the voting age.