I saw an idea on The Growing Room, but it related to reading. I still want to do this idea, but I have wanted to find a way to teach my daughter how to read two digit numbers, and I thought the plastic egg idea would be perfect. She has never picked up on something so quickly. It just clicked. She had already known how to count by tens, but she hadn’t grasped reading two digit numbers yet. This did it…and quickly. It was easy to make with some labels, scissors and eggs. If you don’t have labels, you could also use tape.