This looks to be an interesting response to the call to be more data literate. Via Flowing Data, a straightforward and potentially free way to get skilled up with R, without needing to install any software, it seems.
Chromebook Data Science – a free online data science program for anyone with a web browser
The reason they are called Chromebook Data Science is because philosophically our goal was that anyone with a Chromebook could do the courses. All you need is a web browser and an internet connection. The courses all take advantage of RStudio Cloud so that all course work can be completed entirely in a web browser. No need to install software or have the latest MacBook Computer.
Here’s some info on what the courses cover, including introductions to R and GitHub. Worth a look?