Through out this book, I‘ve thought about the adage that to teach is to learn again. Now, I‘m also thinking it‘s easier for a student to say “I don‘t know” to a younger student than to an adult, which also opens up the next part of the answer, “let‘s find out” or “let‘s look it up.” My older cousins did this with me all the time when I was growing up, and I frequently did it with the younger kids in my neighbourhood.