Reinforce vocabulary development by helping students to be "word aware" outside the classroom. These extra credit slips can be collected once a week, once a month, or once a marking period for an extra credit grade, or students can staple them to homework assignments, quizzes, or tests. How many points is one slip worth? How many can be submitted weekly, monthly, during a marking period, or attached to graded work? The rules are up to you! After years of trial and error, I now make my students responsible for keeping track of their completed slips and remembering to staple them to assignments, quizzes, or tests at the time the work is collected. I award one extra credit point per slip with a maximum of five slips per assignment. The students do the work! All I do is copy and cut the slips and keep them in a convenient place in the classroom! It couldn't be easier!