I like all your points. However, I think the statement: "it is neither necessary nor sufficient"
a bit redundant. I would remove that statement, it does not really add to the argument IMHO. BTW, if its not necessary, how can it be sufficient? HTH, A. Jorge Garcia http://calcpage.tripod.com Teacher & Professor Applied Mathematics, Physics & Computer Science Baldwin Senior High School & Nassau Community College -----Original Message----- From: michel paul <mpaul...@gmail.com> To: sage-edu@googlegroups.com Sent: Fri, Jan 1, 2010 3:26 pm Subject: [sage-edu] Re: what should be taught? After reflecting on the responses I received last year (and happy new one!), here is a condensed version of points I'd like to express to my administration: Given the ubiquitous nature of freely available and powerfulcomputational technology in our culture, what should high school students learn? I believe they should learn math in a way that simultaneously empowers them to make the most effective use of this technology. Fluency in graphing calculator use is not sufficient for contemporarycomputational literacy. In fact, it is neither necessary norsufficient. The only possible reason for insistence on their continueduse would be founded in an interest in promoting the product. The APand SAT exams promote the use of these products. QED. A problem in promoting the use of such products is the limited understanding of mathematics they encourage. The standard of mathematical and computational literacy required (notnecessarily by current state standards, but in the larger world) by today'shigh school students can be addressed through the judicious study ofcomputational language. Not all programming activity leads to mathematical insight. However, acentral core of what we call programming is in fact a form of puremathematics, and many aspects of this way of thinking are in factrelevant for the high school math curriculum. The sooner America getson task on this, the better off we'll be. We can begin to address thedeficiencies in both our secondary mathematical and technological literacysimultaneously. Again, please let me know if I'm off base with any of this. Is any of this irrelevant or tangential? In my initial list >7. Instead of spending so much time teaching kids how to isolate variablesin equations, perhaps it would be better for them to learn how toconstruct suites of simple interacting functions? I think is clearly a mistaken expression. It should not be 'instead of ..'. Rather, >7. In addition to learning how to isolate variables in equations (and explaining their reasoning), kids also need to learn how to construct suites of simple interacting functions to model and test ideas. Again, please correct me if I'm off, but I think this is one of the central differences between what we do in traditional high school math classes vs. what one does using a computational language/environment - construction. When using something like Sage, most of one's effort is not engaged in 'solving equations' but in constructing computational models of ideas, and this is important for today's math students to learn to do. Our traditional curriculum doesn't touch that kind of stuff - or only rarely. I completely agree with and appreciate the importance of getting them to isolate variables in symbolic formulas. I think that's where a lot of problems arise in students' understanding of what algebra even is (and I think the emphasis on calculators has promoted this misunderstanding) - they think it's all about finding particular numeric solutions for individual equations or for systems of, at most, 2 or 3 equations. Then, when it's purely symbolic, their reaction is "Why are there so many letters? Why can't you use more numbers?" But this really is where they need to focus. The reasoning required to manipulate symbolic expressions is directly related to the reasoning required for computational constructions. There seems to be lots of agreement about the importance of writing in math. Perfect. I hope this can be a major point in persuading my administration that integrating something like Sage - not treating it like it's something foreign - would be extremely valuable. Again, kids could create their own math reports in Sage, little mini-papers, that would actually do stuff while explaining ideas. And along with writing - reading. I deeply appreciate the recommendation that if kids learn to read a math text that everything else becomes secondary. Yeah, that's great. I'm going to make a point of incorporating that into my classes. As for 'concept maps' I will replace the example of the quadratic formula with the example of standard deviation. I think that conveys the point better. What I now need is a simple, direct, knock-down, and hopefully fatal argument against the entrenched position that 'graphing calculators are enough'. That's really the whole source of the opposition I constantly face in the high school world the AP and SAT are considered sacred and anything 'else' is too much. My position has been that, no, this is not some other layer on top of the math, this IS math itself, this is how mathematicians do things these days. How accurate am I in making statements like that? I want to create as effective and accurate an argument as I can. Also - has it become the norm for college math departments these days to use some form of CAS, whether Mathematica, Maple, MatLab, or Sage? Or do only some use these things? If it has in fact become the norm, and if we think we're trying to prepare kids for the world they'll be entering, well, why NOT show them these things? Again, thanks very much for the constructive dialog on this. Happy New Year. - Michel Paul --You received this message because you are subscribed to the Google Groups "sage-edu" group. To post to this group, send email to sage-...@googlegroups.com. To unsubscribe from this group, send email to sage-edu+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sage-edu?hl=en. -- You received this message because you are subscribed to the Google Groups "sage-edu" group. To post to this group, send email to sage-...@googlegroups.com. To unsubscribe from this group, send email to sage-edu+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sage-edu?hl=en.
