I am of the idea when teaching mathematics to adult learners that they need to see the math in action. Doing examples, followed by them working out problems is the way to go. I get to check work during class to see if they are on the right track before they leave. In addition to doing work during class, I recommend a homework set. What they do is up to them. The ones who do more fare much better than those that don't, but making the requirement to do more doesn't change the outcome.
Regards,
Scott
