What do you see when you look at drawings by little kids? For example, grown-up artists noticed that many young artists draw big heads with legs. The more people talked about these shapes, the more meaning they found. By now…
Thank you everyone who participated in the WOW! Multiplication open course. We will aggregate questions and answers from the Introduction thread, as well as other course resources, into a book on multiplication. As all our materials, it will be an…