Google keeps track of lots of information about a person. I was looking at Google history, if your logged in Google can keep track of your searches and click thrus and noticed they creates suggestions based on you history. There was a video suggestion and I watched it and here it is.
Quite interesting I think.
It is about 20 minutes long, but watch it as a student or teacher. Let me know your thoughts after you watch it and indicate if your a student, teacher or both and what you are going to do differently.