DIY Portable LEGO Kit with Free Printable Activity Cards. I like this for school, older kids can have activity cards to create planets/atoms/molecules/fractions, younger ones can practice fine motor skills.
mfw 7 +/- coloring sheets A great website, "Coloring Squared," where you can print free math fact coloring pages. They have angry birds and minecraft pictures. Totally printing these for our big road trip!