Guess first: why Why Tho? asks before it explains
Before it explains, Why Tho? finds out what you already think. While a picture is being drawn, it asks a quick guess-first question with a few choices.
A guess changes how you listen
When you commit to a guess, even a wrong one, the explanation that follows answers your question. You notice exactly where your idea and the real one differ, and that's the part you remember.
Quick, and no pressure
The guess-first question is a tap, not a test. There's no score, and the picture shows the answer either way.
Part of every lesson
Asking what you already think is built into how Why Tho? teaches: one small idea at a time, with something for you to do at each step.