For that project I used a tool called videoscribe that is making some really engaging animations as you tend to follow the hand that is drawing or writing the text. It is also mixing really well with videos. Last but not least, working with people with intellectual disability is a very enriching experience.
Below it is the original version I created in French and the English version I did later. There is also an Italian, Polish and Spanish versions.
SafeSurfing est un projet sur deux ans qui a pour but de former les personnes en situation de handicap intellectuel à l'utilisation sécurisée d'internet afin qu'elles puissent protéger leurs données à caractère personnel et leur vie privée.