Operant conditioning

In my class, I want to offer extra credit as a positive reinforcement for each assignment.  each assignment would be worth 6 points out of 5.  This extra credit will act kinda like a token system where students can earn up extra credit "tokens" and use them to boost their grade. 

If students don't hand in there assignments on time they would have to pay a response cost out of their extra credit.  Late assignments would only be worth half credit as my removal punishment.  These two systems would allow students to have one or two late assignments without hurting their grade.  I hope this will encourage students to do their best and pace themselves. 



I also plan on giving a quiz at the start of each class with different questions being used at variable intervals.  Whatever question students have trouble with will be repeated in positive practice quizzes that are not graded. 

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