Hi Teresa:
Early in my career (when I was much younger and didn't know better), I awarded EC pretty regularly.
What I do now is create ownership and a partnership, as this is how good businesses succeed. On day one, when I review the syllabus, I point out there is no extra credit. Then, I spend time telling how each stduent can get an "A" in the class if they follow my instructions. Nothing magical, just an understanding of expectations, such as:
* TODAY, do one small thing towards getting that project done, even if it's not due for weeks or months; repeat this activity every day.
* Work backwards from due dates, asking, "what would have to happen to get a great score?".
* Spend at least a little bit of time every day reviewing material.
* Practice, Practice, and Practice. That's how atheletes and muscicians perfect their craft, so it is with course work.
* Don't let me off the hook; come in early or stay after class - somehow, avoid letting even one day pass if help is needed.
There's much more. These are proven examples that will work in virtually any class. I want my student to learn, not earn points.
Regards, Barry