> It's funny how a big part of Andrew Ng's classes is waiting for him to write text with mouse as if he were using the world's worst whiteboard; he could have prepared properly-drawn figures in advance.
My personal experience actually showed otherwise. It was more effective for me to learn if instructors write on a whiteboard to gradually develop what they teach. I guess that's because when an instructors writes a whiteboards, students will know exactly what she focuses on all the time, and the writing speed matches the speed of understanding. In contrast, a professor in my university was a big shot on operating systems. He used well prepared slides and he talked fluently, yet I got lost in almost every class.
My personal experience actually showed otherwise. It was more effective for me to learn if instructors write on a whiteboard to gradually develop what they teach. I guess that's because when an instructors writes a whiteboards, students will know exactly what she focuses on all the time, and the writing speed matches the speed of understanding. In contrast, a professor in my university was a big shot on operating systems. He used well prepared slides and he talked fluently, yet I got lost in almost every class.