You may have noticed that after a long hiatus, we have had a few new posts in the past week. That is because I finally have help in the form of my wonderful sister, who has agreed to not only help me teach my Sunday math classes but also to help me keep up the blog. The last two posts were authored by her, and I promise there will be more to come, as we describe how our classes are going, the topics we’re covering and how the kids do with them. The posts will predominantly be in English with an occasional sprinkling of Russian. And when possible, we’ll post interesting materials that you may find useful (both from this semester, and from an entire fall full of classes when I didn’t have time to keep up the blog). It’s nice to be back!