well kids like to play, so something that can bring together bitcoin and gaming
like puzzle that when solved reveal a private key for example
it is important that kids start to learn early some basic economy, at least something about income and expenditure
i heard about a new law for some countries that will make it possible(to teach them basic economy) in schools
Its not easy but it has too,Must be patient and teach them well,step by step then they will learn,just focus when you teach them and give them confident,try them to incourage and tell how to be humble when they start to get to know about bitcoin you should be their good example and model,they should know how to press the keyboard while it starting,you must be able to teach them right and well,