At school we use www.thinkuknow.co.uk/ and in particular Hector's World. Hector is on every computer in school, and we have posters next to every computer regarding Hector, tips for when on line, etc.
We teach internet safety from EYFS. I am in charge of this at my school - so have spoken to all year groups, discussed Hector and how to use him, and how to stay safe online in age appropriate terms. Our eldest are y2.
We will do more again this week, as a quick recap, as we have some LEA review on anti bullying and e safety coming up. The initial survey we did last week does, however, suggest ur children are getting pretty good at knowing what to do if something bothers them online.
It is Safer Internet Day 2014 next week on the 11th. We will have some special tasks for the KS1 morning starter linked to Internet safety thsat day, and highlight it more during ICT/Computing lessons next week too.
Before Easter we are having some y7 cyber mentorrs come in to do some special sessions with KS1 - not sure about EFS yet - focusing on e-safety.
Y2 will be having some time in their computing lessons later this year introducing them to e-mail and instant messaging, on computers and iPads - again, a big focus on appropriate se, keeping safe online.