"In math the technique we use is logic. We only want to use sheer logical reasoning. Not experiments, not physical evidence, not blind faith or hope or democracy or violence. Just logic. So what are the things we study? We study anything that obeys the rules of logic." -Eugenia Cheng, How to Bake Pi The... Continue Reading →

Do you have a lawyer in your house? No, not the kind that actually has a degree, earns a salary, and is an adult. I'm talking about the free-lance, unschooled, and relentless child legal expert who calls you out on every breach of fairness or word choice. I have one. He's 9. One day, if... Continue Reading →

It is Pi Day. March 14. 3/14. Sigh. I am not into it, honestly. I feel like it's contrived. Maybe you can convince me otherwise. In the meantime... If you, like me, are not planning to bake OR eat pie today, why not bake something. Even if it's cake from a box. Or brownies. Or... Continue Reading →

Here's another way to reinforce multiplication concepts with your elementary school kids. You just need a hundreds table and some markers. You can present it like a puzzle. Or you can be fancy and tell your kids that they're going to make the  Sieve of Eratosthenes.  Yes, that will get their attention. Here's the quickie... Continue Reading →

It's the type of question young children are always asked: "How many animals do you see?" "How many cars are there?" "How many children are in your class?" "How many sheep are in this picture?" These are good questions. They usually have a clear and correct answer. That's nice. What if they didn't? What if,... Continue Reading →