A compilation of vocabulary study activities that students can use to review/learn new words. Students choose the activities they want to complete and submit for credit. I collect a Vocabdude for each vocabulary list assigned usually the day of the assessment. I check it over for accuracy. One mistake is 10% and additional mistakes reduce the grade at teacher's discretion because it's important that students are studying the material accurately. I allow a maximum of a 110% (built-in extra credit) for each Vocabdude. I only award the extra credit if the Vocabdude is free of errors and submitted on-time.
It's a great way to get students to study and I have a higher rate of homework completion because students choose what they want to do.