No, Sal Khan did not actually submit this question. But Andyhav3 asks:
What’s this student getting at with “the right side of the decimal,” and how might you help Andyhav3?
[Click here to see how your approach compares to how his question was actually handled.]
Today isn’t a sample of student work, exactly. It’s an interview with a kid.
[Source: How Students Learn: Mathematics in the Classroom, p.314]
In the student’s work below, what is “it” and why does the student think that matters?
[Source: http://maine.edc.org/file.php/1/docs/LocatingFractions_StAssessSamples-OERMath.pdf ]