Find the holes in what I know

You've been working in an area a while and suspect you have blind spots.

Below is a description of what I know about a subject, in my own words. Find what is missing.

Do this:
1. Infer how I learned it. Self-taught in practice, from documentation, from a course? The gaps follow from the route.
2. List concepts a well-rounded understanding includes that I have not mentioned. Rank by how much trouble not knowing them will cause me.
3. Identify things I mentioned but described in a way that suggests a shaky grasp. Quote my wording and say what it implies.
4. Name anything I appear to have learned as a rule without the reason, which means I will apply it in the wrong place.
5. Give me the three gaps to close first, and why those three.

What I know:

Checking your understanding. Quizzes, teach-backs and gap hunts that find what you only think you know.