New weblogs

Here are some new weblogs that I have been checking:

Jason Lutz is a student of mine. He has not posted a lot, but that is probably because he is in the process of writing his thesis. He is studying group bases: A group $G$ has a basis $(a_1,\dots,a_n)$ if for every $g \in G$, there exists a unique $n$-tuple of integers $(b_1,\dots,b_n)$ with $0 \leq b_i < o(a_i)$ such that $g=\prod a_i^{b_i}$. He is looking to see when a group has a basis.

Joe Bower is a K-12 teacher who appears to be, like me, a fan of Alfie Kohn’s work. He frequently writes about the affect of grades and homework on students.