advanced learning techniques

i havnt done much on this area for a while, but now when i went there, none of the circles were colored, and i know i have done some before. so then i was going to rate one, but i couldnt figure out how to!! where can i do this?

Shan- Click on the lesson, and then on the grey square that has the 'R' in it. A box will pop up showing rating choices, and you choose one. (that happened to me too)