[figure8]

I really appreciate how he writes and draws the slides as he speaks. With math lectures, this always encourages me to think deeply about the details and implications of each line. I find it better than pre-written slides, now so easily created and presented using Power Point.

[jordigh]

I think this style of presentation is still very common in maths departments. Mathematicians tend to favour low-tech presentations. Blackboards are still in vogue!