Any university teacher who does not harbour a painful recollection of a failed lecture is a liar. On one such occasion, I felt early on that I had lost the students entirely: those who hadn’t sunk ...

Bent Meier Sørensen does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations ...

Uncertain Chad is, well, uncertain, about how best to deal with two competing ideals when using Powerpoint (or Keynote) for lecture classes. On the one hand, nobody likes a cluttered slide. In science ...