The question asked for the range of the function SQRT(x). What are your thoughts about the way the student answered the question. What does it show about what this particular student knows.*
* In the past, I’ve publicly kvetched about how the only questions that we grapple with on this blog are about the particularities, rather than the generalities, of student work. This is a time when I think that the most interesting questions are accessed through thinking about what this particular kid was thinking. I’d also be interested in hearing how you think this represents a trend in students’ thinking, in general.
Thanks to Tina for the submission!