You can download the PDF documents (e.g. song sheets) by selecting the 'download' button below each PDF image, which you can then print off.
Most of the lessons are in video form, so if you are accessing the course on a tablet or mobile phone then it should be easy to watch the videos whilst you are at the keyboard.
If you only have a desktop which is in a different room to the piano / keyboard, then you can watch the videos, print off the song sheets and then go to the piano to try out the lessons.