The board slows you down — and that's the point
Writing by hand forces the pace your audience actually needs to follow along.
A diagram drawn live beats a polished slide every time
Sketched arrows and rough boxes anchor memory better than any graphic template.
Mistakes build trust, not confusion
A crossed-out word signals a real mind at work — audiences lean in, not tune out.
The eraser is half the lesson
What you choose to remove teaches judgment as clearly as what you keep on the board.