Building Mental Representations

25 Nov 201917 Nov 2019

"Sabrina is fascinating. She will look at a problem for three minutes, not appearing to be thinking about it at all, and then come up with the correct answer," her…

Students Surprise Us: Interviews with Juliet

20 Jun 201919 Jun 2019

Have you ever had a student just gloriously prove all your assumptions wrong? Things move so quickly in a school. In order to grapple with the pace of our days,…

What does it mean to be “struggling” in math class? (Eduardo’s Story)

5 Feb 20195 Feb 2019

It was a sea of dots. Eduardo's work for 47 + 27 Over and over again, for both computational and story problems, third grade student Eduardo drew dots. Eduardo's work,…

Presuming Competence: Using Clinical Interviews to Support Classroom Instruction

13 Nov 201827 Nov 2018

"She's not on an IEP, but she's struggling in class. What should I do?" I don't know the student -- Alejandra, or Ali, for short -- very well, so I arranged…

Counting with Celine / Response to Michael Pershan’s Essay, part 1

13 Jan 201723 Feb 2017

I read Michael Pershan’s essay, "Missing Factors: On Learning What You Don't Know," twice. He described a familiar experience: when students seem stuck with operational fluency, in spite of our…