Once more into the math wars, dear friends. I confess I am an innocent bystander. I have never taught math, and I am astonished at the expectations that our middle school students meet. When I was in high school, I studied Algebra, Geometry, and Trigonometry, but math instruction has moved far beyond what I learned. So I invite math teachers to comment on Wendy Lecker’s new article about what the Common Core math gets wrong. To all the pundits and politicians who ridicule our students and teachers, I have a standing challenge: Take any eighth grade math test and publish your scores.



Lecker writes:


At parents’ night this fall, a high school math teacher I know begged parents to teach their children long division “the old-fashioned way.” She explained that the new way students had learned long division impedes their ability to understand algebraic factoring. She lamented that students hadn’t been taught certain rote skills, like multiplication tables, that would enable them to perform more complex math operations efficiently.

It turns out that brain science supports this math teacher’s impressions. Rote learning and memorization at an early age are critical in developing math skills.

A study conducted by Stanford Medical school examined the role of a part of the brain, the hippocampus, in the development of math skills in children. The authors noted that a shift to memory-based problem solving is a hallmark of children’s cognitive development in arithmetic as well as other domains. They conducted brain scans of children, adolescents and adults and found that hippocampus plays a critical but time limited role in the development of memory-based problem solving skills.

The hippocampus helps the brain encode memories in children that as adults they can later retrieve efficiently when working with more complex math concepts. The hippocampal system works a certain way in children to help develop memory-based problem solving skills. Once the children pass a certain age, the processes change.

The study also found that “repeated problem solving during the early stages of arithmetic skill development in children contributes to memory re-encoding and consolidation.” In other words, rote repetition helps the development of this critical brain system so essential to later more complicated math work.

Those who developed the Common Core State Standards clearly ignored brain research in math, as they did in reading (http://bit.ly/1IeIgKm); The Common Core emphasizes conceptual understanding at every phase of math instruction. So, even young children are required not only to conduct a simple math procedure, but to also explain and justify every answer.


There is more. Open the link and read the rest of the article. Then sound off.