Quizzes are during the first five minutes of every lecture. Not all quizzes are collected. The quiz problem is almost always a problem from the homework or the previous lecture. They are worth 10 pts each. The 6 midterms count for 150 pts each and the final counts for 300 pts.
Test are usually in two parts.
The second part is in class, and based primarily on the quiz problems. Don't be fooled by the low value assigned to homework in the grading sheet. You are graded on the concepts and skills mastered not on the effort you put in. You learn it by thinking about it and by doing it. You can also come and ask for some.