These issues are complex and need a whole school approach in which the PSHE education curriculum plays a vital part.
Learning about different types of bullying (including online) is now a statutory RSHE requirement. This includes the impact of bullying, responsibilities of bystanders to report bullying and how and where to get help.
This also crosses over with how you can teach about abuse, harassment and discrimination within your PSHE education curriculum. Read our guidance on addressing sexual harassment through PSHE and scroll down to see relevant resources and lesson plans.