Different Learning Way & the Notes about Machine Learning

I've attended Coursera online video courses for learning Machine Learning, which is taught by Andrew Ng in  Stanford university. The video lectures are really interesting, and I do love this kind of learning way.

The main purpose of writing this article is to note something I've learned from these video lectures.

Furthermore, I also found some attractive features about this website, first is that almost every section of the video, the professor hided a question in it, just like this picture (you can see a thin yellow line ) :

The video will pause automatically and bring you to another page which you can really answer the question by yourself :

After submitted the question, I felt more confident about my future learning. So maybe it's a wonderful way of teaching and make learning more exciting! ^_^