This to me is the best money that I personally have ever spent on my own classroom. I attended a conference where Ms. Calkins was the keynote. I had always had Writing Workshop up and running in my classroom, but I never had a real plan laid out for the year ... what specific skills I was going to cover when and how.
Well, when Ms. Calkins spoke of the Units of Study, I was hooked. I bought them that day, studied them over the weekend, and implemented them the following week.
Within a year and a half, The Units were adopted by our district, and our writing scores went up!!!
Need I say more? They are fantastic!!! :)