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It is easy to underestimate this as the presenter, since changes you have control over are much less demanding and you do not need to follow your own speech in parallel. Mind that this is purely about the change, not the content that is eventually revealed or there from the beginning. You have to compromise between the three following aspects:Įvery change/transition on your slides demands some of the viewers’ attention. This was one of several questions asked here but none of the answers there seems to address this particular question. But for technical presentations, one often has slides that have more information than one can reasonably take in at once. If you have a slide that just consists of a few short bullet points, then I agree that there's not much point in revealing them one by one. I think this question may be closely linked with the issue of how much information to put on each slide. There may also be diversity issues (dyslexia, ASD, etc.) that are relevant.
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What are the pros and cons of these two approaches? How should I choose which one to use? Are there recommendations from authoritative sources and/or supported by reliable evidence? I'm mainly interested in technical presentations in science or mathematics, including both lectures to students and research talks to peers. The argument in favor was that revealing a whole slide at once gives too much information, making the talk difficult to follow. The argument against doing so was that revealing slides bit-by-bit is "micromanaging" viewers' attention and that some people prefer to have access to all of the information on the slide before starting to process it. In the comments on this question, there were a two opposing opinions ( anti, pro) on the technique of revealing slides bit-by-bit, rather than all at once.