By Shane Vander Hart
Barry Garelick wrote at The Atlantic about the Common Core Math Standards. Basically he says that kids are required not to just learn how to make a calculations, but also how to explain why they are doing so. The standards actually elevate this above learning how to solve math problems. Garelick points out a couple of emails he has received as anecdotal evidence that the implementation of the standards are falling flat.
The first email was from a parent:
They implemented Common Core this year in our school system in Tennessee. I have a third grader who loved math and got A’s in math until this year, where he struggles to get a C. He struggles with “explaining” how he got his answer after using “mental math.” In fact, I had no idea how to explain it! It’s math 2+2=4. I can’t explain it, it just is.
The second from a teacher…
I am teaching the traditional algorithm this year to my third graders, but was told next year with Common Core I will not be allowed to. They should use mental math, and other strategies, to add. Crazy! I am so outraged that I have decided my child is NOT going to public schools until Common Core falls flat.
Garelick then goes on to explain why the Common Core Math Standards complicate math needlessly for students:
Many of these standards require that students to be able to explain why a particular procedure works. It’s not enough for a student to be able to divide one fraction by another. He or she must also “use the relationship between multiplication and division to explain that (2/3) ÷ (3/4) = 8/9, because 3/4 of 8/9 is 2/3.”
It’s an odd pedagogical agenda, based on a belief that conceptual understanding must come before practical skills can be mastered. As this thinking goes, students must be able to explain the “why” of a procedure. Otherwise, solving a math problem becomes a “mere calculation” and the student is viewed as not having true understanding.
This approach not only complicates the simplest of math problems; it also leads to delays. Under the Common Core Standards, students will not learn traditional methods of adding and subtracting double and triple digit numbers until fourth grade. (Currently, most schools teach these skills two years earlier.) The standard method for two and three digit multiplication is delayed until fifth grade; the standard method for long division until sixth. In the meantime, the students learn alternative strategies that are far less efficient, but that presumably help them “understand” the conceptual underpinnings.
Be sure to read his whole article.
Cross-posted from Truth in American Education with the author’s permission.