I don't think that's embarassing. I like solving math puzzles, and I'm often realizing that I'm missing something I've forgotten since middle school or high sc

I don't think that's embarassing. I like solving math puzzles, and I'm often realizing that I'm missing something I've forgotten since middle school or high school - some formula that I know exists that would make a problem trivial. I'd like to re-learn that stuff, especially as my kiddo starts advancing in math classes.