Aside from an internet connection and a modern internet browser, all you need is a program that can read PDF documents. This is so that you can download and read our Student Handouts and teacher support documents. If you can't view PDFs, you can download a free version of Adobe's PDF reader here.
Other than that, you should be set! There's no software specific to Mathalicious that you need to download and install. When you're teaching a Mathalicious lesson in the classroom, simply use our website as you would any other part of the internet.