How well do you know or "can do" the concept?

Below is a sample rubric
4.0 I know (can do) it well enough to make connections that weren't taught.
3.0 I know (can do) everything that was taught without making mistakes.
2.0 I know (can do) all the easy parts, but I don't know (can do) the harder parts.
1.0 With help, I know (can do) some of what was taught.