Some students may use the reciprocal of the slope formula and find run over rise rather than rise over run. Ask those students if they can run while seated. When they respond that they cannot, point out that they must first rise before they can run. Since rise must come first, it is written first as the numerator.
I mean, Jebus. I suppose I would have a hard time coming up with meaningful teaching tips as well (this is on a two-age spread of tips for new teachers), but I hope I wouldn't write something like this.
