I was annoyed by some concepts introduced in this article, as well as some of the underlying statements made. This article, before I proceed with my sentiment, involved the discussion of mathematics learning as made up of what author decided to call "operational" versus "structural" conceptions. Although she admits she does not know how to define "understanding", the author writes that true understanding only comes from moving from beyond the operational conception of mathematics (requiring the five senses) to structural conception of mathematics (at an abstract level).
The author outlined that the three stages of developing concepts are:
1) interiorization (in which a learner becomes familiar with a concept)
2) condensation (in which a learner conducts more work in manageable units, which requires concept synthesis)
3) reification (the sudden ability to se something familiar in a totally new light).
One of my issues in this article is the lack of development/emphasis on how the author suggests we proceed from moving from condensation to reification. Although the process she described around waiting for a sudden understanding of a concept is one to which many mathematicians can attest, there is very little detail on how to come about this sudden revelation. However, it is this part of the process for which educators seem to come under fire in the article, since students are still stuck on the operational (if even that), while little/no structural understanding is developed.
This article demands that we answer not only what mathematics is for, but also for whom does mathematics exist, and who does it serve (or, who does it fail to serve)? How many students are willing to stare at a problem and work it to exhaustion until they finally reach the "click"? How many have the confidence to continue manipulating the problem over and over until they finally have a revelation? Can "the click" be taught? Does it even need to be taught in a high school setting?
It is also odd that the assumption in this article is that we begin operationally and then proceed to structural conception; Sfard uses the example of a child's counting being operational. I disagree that the set of three objects being counted aloud in place of a single answer yields an operational conception over a structural one, however: if I were asked to count fifty-seven objects, I certainly would not hesitate to count aloud in some form to fifty seven, even though I know that it is the product of two primes (which I assume would be the abstract form of understanding? However, this was a conclusion I made procedurally by being able to subtract three from a known multiple of three, 60, then knew that a number three smaller would also be a multiple).
Finally, there were certain judgments about ability in the article that bothered me. For instance, I found the following quote irritating: "Being capable of somehow 'seeing' these invisible objects appears to be an essential component of mathematical ability; lack of this capacity may be one of the major reasons because of which mathematics appears practically impermeable to so many 'well-formed minds' " (pp. 3). Why is this an essential component? Does it always have to exist? How do you know how good your "understanding is", and perhaps Sfard could have defined what this is before claiming that having it is an essential ability in doing mathematics?
Looking forward to discussing this in class.
I agree that the author is really vague about how a sudden understanding of a math idea occurs through reification. I think such an understanding does not happen spontaneously without some sort of external stimuli. I remember that last year, when I tutored a student in AP Calculus, he found it difficult to see the relationship between ideas like derivatives, slopes and continuity. In one lesson with him, I drew a diagram to explain the Mean Value Theorem (similar to how it is presented in most textbooks) but added several bumps and tangent lines to a graph in the diagram. After seeing the graph with the bumps, he said, "This is enlightenment!", and understood the previous troubling math concepts better. My original intent to draw the bumps in the graph was not to help him see the previous concepts in a new light but to emphasize the rationale for the theorem. I was surprised that reification occurred in that lesson.
ReplyDeleteRegarding the quote, "Being capable of somehow seeing these invisible objects ... an essential component ... (p3).", I also agree that it is not an essential component. The author is not making a fair statement to math learners in general. It sounds like without this special capability, you can never learn math well, and you will likely fail in the subject. I do not think this is necessarily true. I believe that it takes time, persistence, determination, and a positive attitude to develop good math skills.
Well, I have not read the article, but the citation here, "Being capable of ... 'well-formed minds'" does make sense to me, as it is true for people to make connections from one understood math concept to another newly learnt concept. Perhaps my interpretation is different from the author's, and it does not mean that in every concept a learner should be able to see something invisible, but apparently, if a student cannot build connections among knowledge s/he learns, s/he cannot learn this subject well.
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