Good evening, @dianethrash 
Welcome to the Canvas Community. Thank you for posting your question. I am hoping that this Guide will be of help to you: How do I give extra credit in a course? Be sure to read the information in the blue box at the top of the Guide along with the information about half-way down on Assignment Groups and Weighted Assignment Groups. I hope this will be of help to you, Diane. Let us know if you have any questions about this...thanks!
