Keenan's Book Reviews: Search results for Andrew Hacker

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Wednesday, June 3, 2020

The Math Myth and Other STEM Delusions by Andrew Hacker

In the last decade or two, many have called for increased education in STEM fields (science, technology, engineering and math). As an engineer, I may hear more of it than others, or perhaps I am more attentive to it. Math, particularly algebra, trigonometry and geometry, has been seen as a foundation of STEM education with much support from the tech industry that has made it central to the Common Core curriculum used in the majority of states. However, this math requirement has become a stumbling block for many on the road to high school and college graduation. As when I was in school, students ask, “Am I ever going to need to use this?” The answer political scientist (and sometimes math professor) Andrew Hacker proposes in The Math Myth is no.

"This country has a problems. But more math is mathematics is not one of the solutions,” Andrew Hacker, The Math Myth and Other STEM Delusions

One of the first myths that Hacker tackles is this issue of the usefulness of algebra and other higher math for STEM careers or adult life in general. Most people never need anything more advanced than arithmetic (addition, subtraction, multiplication and division), including most scientist, technicians and engineers. In the 25 years since I graduated from engineering school, I have never need to solve a differential equation. Easily 80 percent of the math I do is arithmetic—possibly more. The rest is basic algebra and basic statistics. On the rare occasion I’ve needed some more esoteric piece of math, I’ve learned or relearned it on the job.

In spite of this, the move in the U.S. has been to require four years of high school math through Algebra II or beyond, plus a college level course in algebra or more advanced math. This applies even to students who plan to study liberal arts, humanities and other subjects that make practically no use of math. This requirement is the number one academic reason people do not complete high school or college (there are other reasons, of course, but they are not related to a required class or subject). Even youth form affluent families with educated parents can find algebra to be an insurmountable hill. Hacker wonders how much human potential goes undeveloped because educational opportunities are denied to people who do not need math beyond arithmetic, but must pass an algebra course to get their diploma or degree.

Why is math, and especially algebra, a near universal requirement? Hacker points to college math professors and their influence on lower level curricula. They want prospective students to be prepared to move to the advanced subjects they study, though only on percent of undergraduates major in math, and that drops lower in graduate schools. These same professors almost never teach the entry level (and especially not remedial) math classes in their own colleges. For colleges generally, math can be a weed-out course. Even if most students don’t really need algebra, the requirement is a quick way to knock down the number of students. (As an engineering student, my fellows and I understood the sequence of calculus and math-heavy physics classes required of us as freshmen and sophomores was a way of persuading us to study something else—I almost did.)

Tech companies also call for a math intensive education and lots of STEM graduates. Hacker points out that, in spite of the hype, there are actually not that many STEM jobs in the U.S., nor is there a lot of growth in these fields. A glut of STEM graduates, in addition to the foreign tech labor market opened up by H1-B visas, keeps wages low in the tech sector. If there was an actual shortage, employers would respond with increased wages. Computer programmers don’t use much math and great majority of them don’t earn high salaries. Sadly, the same is increasingly true in engineering. My advice to someone interested in an engineering career would be to pursue it if you find the work interesting, but don’t do it with the expectation that you’ll get a high salary or rise quickly because of the demand for your technical skills.

I’d like to mention one more thing that Hacker brings up. Though the math people learn in school often has no practical utility in their work or daily life, people have a knack for math and often do complex mathematical things as part of their jobs. Hacker uses the example of a carpet layer, but I have seen it in machinists, carpenters and other skilled laborers. The use and shape materials in ways that require some complex math, but they don’t write out a page full of equations. They instead apply tools and methods they have learned on the job. I’m a little fascinated by some of this tool-based, mechanical math, and it seems to be just as effective and more understandable that school math, especially since very few of us aspire to study math for its own sake.

Wednesday, June 3, 2020

The Math Myth and Other STEM Delusions by Andrew Hacker

New Stuff June 3, 2020

Thursday, June 4, 2020

500 Books Reviewed on Keenan's Book Reviews