Advent Calendars are sanity savers for parents of young kids, since they neatly fend off the barrage of "when's Christmas?" questions. A fun Advent Calendar is also a great way to introduce a young child to counting or calendar reading - they'll be highly motivated learners, since it's a countdown to Christmas! Click through this gallery to discover 9 Advent Calendars you can make.
Hexaflexagons can be made using a strip of paper. You fold the paper in a certain way, glue the ends together, and get a flat shape that can be folded in on itself to reveal faces that were hidden before, and hide the faces that you can see.
Kitchens are full of math and science - click through this round-up and read how to make your kitchen a great math and science classroom.