First Grade Common Core

Long time, wouldn't you say? I'm just popping in for a real quick post. I was wondering if you have seen this amazing workbook for the CCSS? I found it a few seconds ago and I think it's great! This is by far the biggest First Grade Common Core resource that I have found so far....It has over 550 common core ELA and math activities, centers, and posters. Go check it out but clicking here: First Grade Common Core