I use these <actually the second grade version> myself and have heard that some teachers even use these WITH their students and explain all of the different levels. I need to start exploring this idea! If you teach first grade this is rubric set is a must have!
These are awesome to use in your math centers during these cold months! There are a lot of activities that are helpful in this pack...I get a kick out of watching the kids work on these.
I hope you have a great time shopping!!