I knew something was up when I saw my students’ results.
My mistyping was a good reminder of the importance of nouns.
Without showing any results, I sent the corrected question as a Quick Poll.
(I wonder whether the way the first question was asked prompted the misconception in the wrong answer, but I won’t find out until I have another group of students.)
We are learning to look for and make use of structure.
We are learning to contemplate, then calculate.
And we are learning how to ask better questions, as the journey continues …