Work sheets to supplement courses

Any thoughts on work sheets (with answer key available) to go along with the courses as supplemental material? I think a good set of problems to work through that are representative of the things you may come across in practice could go a long way. Would helpt to reinforce learned concepts, and decision making when tuning an engine.

We are working on adding quizzes to our courses in the near future but at this stage we won't be adding physical work sheets.

Similar effect. good stuff!