FIAE Chapter 10

I am slightly confused about how to grade work that students redo. Wormeli says that averaging two test scores or giving back half credit for every question is not right. Students should be able to receive full credit for everything that they redo. I feel two totally different emotions with this; the teacher emotion and the student emotion. As a student who studied and received an A the first time I took a test, I feel as though students who get to redo a test and receive full credit is a little wrong. I don’t get anything for getting an A the first time, but those who didn’t get to catch up. However, as a teacher I want all my students to learn and do the best that they can do. How can I make sure my students get to learn the information for mastery, but still not slight those students who do well the first time?