Interesting article that relates to this discussion:
I have used 1 iPad and 1 iPod Touch all year with 4th graders. You can see all my apps & a learning checklist designed for those apps on my resource page here: http://www.21innovate.com/ipadipod.html
If I could get my hands on more, I would love it. We have a netbook cart which is used frequently for writing, publishing & flash-based activities. But the iOS devices really engage the kids & there are tons of great apps. I will assume that managing these devices & app purchases will be your biggest challenge.
My biggest hope is that people choose to use tablets for 21st century skills and not strictly doing old things in a digital way. (On my checklist you will see the verb CREATE a lot) -the iPad is not just a consumption device!
There are plenty of apps which you can use on both Android and iOS that will allow students to write out their math work, but the problem is that they are just glorified Paint programs. They do nothing to process or interpret the math work. It is sad really, but I have looked for a math app which is more than what can be done on a website, and they simply do not exist.
The market for really good math apps is currently limited and will be as long as textbook publishers continue to provide only the basic material that they already make available on their textbook website resources. For example, the Houghton Mifflin apps on iOS are ok but they are definitely not web 2.0 as most are just versions of the flash enabled games and videos which are available on a computer (with Flash). Another problem is that they charge additional money for the iOS apps while the web apps are usually included for free for districts which have adopted their texts.
Take a look at this app. It's free :)
Mike that is an app which goes to show the issue with most apps for both iPad and Android when it comes to education. As essentially a quiz and short lesson app, it does what it was designed to do, but it doesn't go far enough. Using materials available like the Kahn Academy and various quiz based websites, you can do the same as the app with greater depth and detail through the websites. What I have yet to see for Middle and High School level students is an app that really reaches into the world of Web 2.0 and offers something more than what we have already. There are plenty of Web 2.0 and innovative apps for iPad and Android that focus on the youngest students, but really nothing for the older students.
For example, the Elements app which is often touted as a supreme and one of the first examples of an app for education is in my mind missing the point. It is a great app in terms of style, look, and functionality. However it is nothing more than a website with some nice video and animations. I think of it as a really nice book or reference material. I have yet to see an innovative app for the older grades which goes to the same level as many of the best educational websites that we have had for years.
I can see how a flashcard app would be useful to an elementary math student memorizing addition or multiplication tables.
For chemistry, I agree with Alisa as well that it would be difficult for students to show their work on unit conversions problems or stoichiometry. Honestly, there is probably an app or website that can solve any stoichiometry problem out there, but can the student show me their work to prove they can do the problem and understand the molar relationships behind it by using a tablet??... I am doubtful.
BUT wonder if I invented an app where students could drag atoms around on a tablet screen showing how the arrangement of the bonds changed after a reaction?? And then students would have to balance the equation by adding more atoms?? Well, I guess I would be a millionaire and I could buy myself an iPad : )