Unwitting Collaboration

I read a lot of blogs. And by read, I really mean skim. And by skim, I really mean I only read stuff if the title looks interesting or if it has pictures or if it has been specifically recommended to me by a friend. However, there is a particular blog that I actually read almost every time a new post is made. This "Mrs. H" is a fabulous and creative person. One post in particular (linked here: Mrs. H's Star Chains) I tried in my classroom. We had just finished working on properties of various quadrilaterals. Each card led to the next and when the students were done they had a full self-checked chain of math problems. It was a beautiful thing. Below are a few pictures of the finished product.