I recently discovered these really neat learning workbooks for the boys and eventually Lily. I wanted more activities to with them and it is also good for those spongy (of course this is a good thing, they are at the height of learning) brains they have going on now.
The books are called the Kumon Workbooks. It introduces learning concepts in an incremental, step-by-step approach, allowing children to master new skills easily and without anxiety or frustration. As a result, children gain confidence in their abilities and are motivated to learn on their own.
They have a lot of fun doing them and they get so proud of themselves when they finish. I love seeing them have that confidence. I also got them ones on learning to cut paper. These will help them with their dexterity and hand control as well.