'Talk PANTS' is a useful and well established resource that was designed to help children understand that they have a right to say ‘no’ and if they need to speak out about something, someone will listen.
It was developed by NSPCC in consultation with children, parents, carers and teachers. Talk PANTS intends to educate children to understand their body belongs to them, and they should tell a safe adult they trust if anything makes them feel upset or worried.
If you visit the PANTS website there are future and advice to support you at home. These resources are also used in school with children and we have an annual whole school assembly. Sometimes children require further input and additional work is put in place to support those individuals or small group of children.
https://www.nspcc.org.uk/keeping-children-safe/support-for-parents/pants-underwear-rule/
The children in school are taught the five rules of PANTS.