Cross-postEducationPedagogyPrimary Education

A Meditation on Ratio

What do you think a ratio is? I emphasize “think” because I’d like you to be interested only in the fragmentary pictures conjured by the question—you want to be aware of what you think a ratio is, not what you think you know about ratios, which are two different thinks. …


Teachers Should Be “Poised and Articulate”

At the end of what seems like a long chain of events back in 2007, I asked, and answered yes to, this question about professionalizing teacher practice: Is there one or more cultural “teaching scripts” that might tend to stymie the practice of collecting and critically analyzing specific best-practice knowledge …

Critical ThinkingCross-post

Intuition and Domain Knowledge

Can you guess what the graphs at the right show? I’ll give you a couple of hints: (1) each graph measures performance on a different task, (2) one pair of bars in each graph—left or right—represents participants who used their intuition on the task, while the other pair of bars …

Critical ThinkingCross-postEducation

Letting Go of Free Will

The most popular conception of free will—a notion that lies mostly unexamined until it becomes necessary to defend it—is that there is something inside our minds (a “ghost in the machine“) that, as Steven Pinker says, “reads the TV screen of the senses and pushes buttons and pulls levers of …

Critical ThinkingCross-postEducationPedagogy

Telling Vs. No Telling

So, with that in mind, let’s move on to just one of the dichotomies in education, that of “telling” vs. “no telling,” and I hope the reader will forgive my leaving Clarke’s paper behind. I recommend it to you for its international perspective on what we discuss below. “Reports of …

Critical ThinkingCross-postEducationUncategorized

Sophisticated Educators, Please Stand Up

People have been talking about false dichotomies in math education forever, it seems. And so have I (as long as you think of seven years ago as “forever”). And so has Professor David Clarke! His paper, titled Using International Research to Contest Prevalent Oppositional Dichotomies, was published in 2006, and …


GP X-Post: Schooling your kid

[This post was originally written by delagar on Grounded Parents. Read it there or catch the beginning below.] After four years of home-schooling, we sent the kid back to public school this year. I wouldn’t say it’s been a smooth transition, but it’s been less fraught than it might have …


SkepchickCon Is (Nearly) Here!

Hi everyone! The wonderful SkepchickCon is happening July 3-6 as part of CONvergence and there’s still time for you to get involved! You can find out about the event itself and get your tickets at You can find out about some of the incredible Space Lab events that are …


Introducing Skeptability!

Skepchick has a new sister site! Our newest addition, Skeptability, is devoted to the discussion of disability-related issues in science, skepticism and beyond. Sarah and her team will be kicking the site off with a variety of fantastic articles over the next few days and they would love to read …


Queereka Cross-Post: Collectivism at Duke

The following post was written by Vince at Queereka. Read it there or catch the beginning below: The Student Union of Michigan recently published an interview with a group of Duke graduate students that contained the unthinkable in a capitalist system, collectivization of wages. The Duke Collective, as they are …