The thinking course you can prove you took. Not quizzes. Not videos. A measured before, five skills trained by PRODUCING real artifacts, a parallel exit test, and a downloadable scorecard + portfolio that demonstrates the change.
The protocol:
Day 0 baseline \u2013 two real instruments: interval calibration (hit rate + sharpness) and argument analysis (tag claims, evidence, assumptions, noise in a live passage). Your honest \u201cbefore\u201d numbers.
Five production units \u2013 each teaches a method by worked example, then you PRODUCE: an argument map of a real argument from your life; calibration training with a live hit-rate curve; a decision journal with probabilities and review dates; a Fermi decomposition with error localization; a steel-man of a view you oppose plus the test that could prove YOUR view wrong, rubric-scored.
Exit test \u2013 parallel forms of the same instruments, identical scoring.
Your proof \u2013 a generated scorecard (baseline vs exit, with deltas) and portfolio of everything you produced, downloadable as one self-contained page. Show it to an employer, a teacher, or yourself next year.
What it is not: multiple choice, passive watching, participation certificates. What it is: measurement, production, and a demonstrable result \u2013 re-runnable every quarter.