Blank the screen in powerpoint to avoid divided attention

When the scientist presents: "Keep what the audience sees in sync with your speech [...] We, human folks, are not very good at doing two things at once when our senses are pulling us in different directions.[...] Blank the screen (B-Key or black slide)."

Typing speed test

I just did this typing speed test: 12% of my typing time is lost due to mistakes.


Click on the image to see a screen shot of the test results.