Educational content ideas/literature
A World of Folk Tales
A "book" of folk tales from around the world. It begins with a world map. When the child clicks on an area from the map, a story from that part of the world pops up. Perhaps each "book" could have a theme. For example, there could be a book of myths about how the world was created. This would allow the child to compare ideas on a single theme across different cultures.
A story that a child creates by choosing options in forks in the narrative. For the youngest child, this could be as simple as a very graphic-based story, in which a situation for the protagonist is set up. Then the child is given three options for how the protagonist should handle the situation. Depending on which one they click, the story shows the result of their choice. The older child could be taken down an adventure maze.