Lean Six Sigma, taught with tools you actually operate
Not screenshots of a Pareto chart — a Pareto chart you build, from data you can change, that tells you something you did not know. Every calculation states the method it uses and cites where it comes from, so you can check it rather than trust it.
What is here right now
- 30 lessons
- About 7 hours, in a stated order, across Foundation, White Belt, Yellow Belt, Green Belt, Black Belt and Master Black Belt.
- 26 working tools
- Free, no account, usable on your own data.
- Mock exams
- Assembled from a stated blueprint and marked by competency, not by percentage.
How the lessons work
A real problem first
Every lesson opens with something that actually went wrong, with a number attached. The theory arrives because you need it, not before.
A worked example you can reproduce
The same dataset that appears in the worked example loads into the tool below it. Every figure in the text is one you can get to yourself.
Then you do it
You operate the tool on the data. Getting it wrong is part of it — a wrong answer is told it is wrong, and why, rather than softened into a near miss.
Progress you earned
A lesson completes on first-time correctness. Retrying until it goes green does not count as knowing it, so the record means something later.
What costs money
Foundation, White Belt and Yellow Belt are free — the lessons and every tool used in them, permanently, without a card. That is not a trial; it is the part we think should be free.
Green Belt onwards, the statistical tools, the mock exams and the guided project workspace are $14.99 a month, or $119.99 a year.
This is our own programme and our own belt scheme. We are not a certifying body and we do not award anyone else’s certification.
Reference
- Process sigma table— computed from the inverse normal, and why 3.4 DPMO is six sigma