@wilsonmarkc @MoMath1 I’m also a 2: funnily enough, I went from 5 to 2, meaning my first coauthor’s number went down after the fact because they wrote with me.
@pwharris Any teacher that writes a mixed number with concatenation instead of a plus sign should lose their license. Concatenation means multiplication. What do we say about teaching rules that expire? Notation that expires is much worse.
@jamestanton You’re drawing horizontal lines (rows of the triangle) to get totals (2^n for each row). Tilt the lines to different totals. For example, tilting to be parallel to the side you get n, then the sum of T(n), etc. There’s an angle which gives the Fibonacci sequence, which amazes me.
@loveofdoing@LongFormMath One of the cool things about high-level math is that almost everything is related to whatever subject you want. It’s all about interpretation.
This statement (the Jordan Curve Theorem) is usually thought of as topology but I remember using it in a graph theory course.
@Dean_of_math I would agree, except that students need an incentive to do it in earnest. Even a minor one. Because in the absence of that, it only helps those who want to be helped, which is no longer teaching to the middle.