GeoGebra App for Android phones
GeoGebra have recently released a version for Android phones. Having played around with it it seems very responsive. The ability to select/drag objects and the speed that it updates appears to be really good - much better than when viewing GeoGebra worksheets via a browser. An example: gradient of the tangent to a curve at a point This is an example that shows how the gradient of the tangent to a curve at a point varies with the point. The app is so quick and easy to use that this took me 17 seconds to create (I timed myself!). Use of smartphones in classrooms This app presents a fantastic opportunity to put dynamic maths software into the hands of students. As I've commented on before, I think the real benefits of technology come when students are using it. In addition to this there are significant advantages when this is on a device that students have an attachment to and feel ownership of. Most people feel their own phone is a device that is very personal t