I done a talk to two local schools last term the Rpra will supply you with a pack containing books,Leaflets,pens,posters,balloons etc.I took two old birds and a squeaker and a clock prize cards ,rubbers.It was supposed to be part of their history lesson and we talked about the role played by pigeons in World War11 we then got onto racing and pigeons in general.Dont worry about what to say as once you start the kids and teachers will bombard you with questions .My session was supposed to last half an hour and we were still talking after an hour and a half.You will really enjoy it so just relax and be yourself.