Educating kids is an easy job rather than educating adults, because kids tend to learn quickly with lesser questions in mind and the questions which are raised can be answered.
Introducing a subject just like we have a subject for stock markets, having articles related to bitcoins occurring more often in the newspapers, magazines.
Kids can be divided into age groups for the articles because every age group has a certain interest of reading.
for eg kids in the age group of 5-10 bitcoins can be shown in the comics, 10-18 articles on bitcoins, then 18- onwards a subject regarding the same.