rubik’s cube =) Tuesday noon we talked about our weekend plan, all of the tutees are willing to share, and when I talked about my plan, I mentioned that I will probably try to solve my new cubes ( rubik’s cube) if its rain outside, and I took out some cubes that I brought with me, tutees then asked me to demonstrate. And I found a problem: I can’t solve cubes and chat with tutees at the same time, and I still need to prove me solving skills that to reduce the time I need to solve a cube, if I took too much time on it, tutee will get bored before I solve the cube. So far 100 seconds is my limit, but maybe 60 seconds will be better.