Cruising Common Core materials (there seem to be lots on Prezi), I find this (slide title: "Two Types of Essential Questions: Overarching and Topical"):
Isn't there one right answer to "how many ways can we achieve the sum of 23"?
Isn't the answer: "There are an infinite number of ways to achieve the sum of 23"?
Another thing: would this question be asked, in this way, in combinatorics? (In the time I've spent trying to learn combinatorics, I haven't encountered a question with more than one right answer. Nor did I encounter a question with an answer of infinity.)
(And how is this question "topical"?)
I am watching in amazement as Common Core rolls across the land.
It's as if every constructivist in the country has suddenly been handed a lifetime prescription for anabolic steroids.
All those years of No Child Left Behind and Adequate Yearly Progress must have created a massive pent-up desire in the breasts of America's educators to conduct mini-lessons and ask math questions with no right answer.