The blog
Prepare, not just revise
The glossary says what a tool is. These articles answer the questions no term carries: how long to allow, what makes people fail, in what order to go about it.
How long does it take to prepare for a Green Belt?
The question has no single answer, but it has wrong ones. What really lengthens a preparation is almost never the volume to learn.
What makes people fail a Lean Six Sigma exam
It is almost never the statistics, contrary to what most candidates fear. Four mechanisms come back, and none of them has to do with the difficulty of the syllabus.
Revising with glossary entries or with questions?
Both serve, and not at the same moment. Using them in the wrong order is the most banal cause of a preparation that treads water.
For definitions and shop-floor cases: the glossary. To place yourself in fifteen questions: the free quizzes.