Android Apps

I'm a high school teacher and I recently bought an Android tablet computer. It's pretty cool, and a lot cheaper than those tablets made by Apple (which, I have to admit, are pretty cool, too). However, there's not a lot of attention being paid to apps built for Android which are great for education. So I'm on the hunt for those, and I'm sharing my results here. There are some really fantastic educational Android apps, but it takes some searching to find them.