Just my opinion, but I would not want to do w/o the teacher’s guide for grammar. I could have figured it out, but it would have taken me a lot of time to do it. Each lesson is 5 sentences that they label every single word w/what part of speech it is. Then they diagram each sentence. Plus a few questions. I feel that grammar took me enough time to grade even using the teacher guide:)
I don’t have the mechanics book…so can’t help there. Though I would think that fixing punctuation errors would be obvious and quicker than the grammar section. Just my .02:) Gina