The Way You Learned Math Is So Old School

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Your fifth-grader asks you for help with the day’s math homework. The assignment: Create a “stem-and-leaf” plot of the birthdays of each student in the class and use it to determine if one month has more birthdays than the rest, and if so, which month? Do you:

a) Stare blankly

b) Google “stem-and-leaf plot”

c) Say, “Why do you need to know that?”

d) Shrug and say, “I must have been sick the day they taught that in math class.”

If you’re a parent of a certain age, your kids’ homework can be confounding. Blame it on changes in the way children are taught math nowadays — which can make you feel like you’re not very good with numbers.

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Difficulty or Dyscalculia?

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Burgeoning research into students’ difficulties with mathematics is starting to tease out cognitive differences between students who sometimes struggle with math and those who have dyscalculia, a severe, persistent learning disability in math.

A new, decade-long longitudinal study by researchers at the Kennedy Krieger Institute in Baltimore, published Friday in the journal Child Development, finds that 9th-graders considered dyscalculic—those who performed in the bottom 10 percent of math ability on multiple tests—had substantially lower ability to grasp and compare basic number quantities than average students or even other struggling math students.

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Are Math Skills Built In To The Human Brain?

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Psychologist Véronique Izard discusses a study that suggests Amazonian villagers with no math schooling are just as equipped to solve basic geometry problems as math-trained adults, and cognitive neuropsychologist Brian Butterworth talks about the arithmetic cousin of dyslexia, dyscalculia.

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Dyscalculia from Pondering the Classroom

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When I teach Managerial Accounting, I emphasize to students that in many areas of business it is necessary to read numbers and understand the patterns that are present.   I have always wondered why some very smart students who study are unable to do either one.   Perhaps it is due to dyscalculia.

Two fundamental skills underlie almost everything I do in the course:

  1. Starting with the average cost for some amount of units and then calculating the resulting total cost, and vice versa.
  2. Identifying the pattern inherent in a sequence of numbers and calculating what would come next, or what came before.

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Dyscalculia no more

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warning: You may come across a website dyscalculianomore.com or find e-review.net/dyscalculia-no-more

both promote a program that is available for free from the authors, and has been presented HERE earlier. The most accurate website to download the program for free is this:

http://www.unicog.org/main/pages.php?page=NumberRace

 

The program is called Number Race:

The Number Race software is designed for remediation of dyscalculia in children aged 4-8. It may also be useful for prevention of dyscalculia, or to teach number sense in kindergarten children without specific learning disabilities. The software was developed in our laboratory by Anna Wilson and Stanislas Dehaene, and is based on our current knowledge of the brain circuits underlying numerical cognition. Details of the design of the software are published in Behavioral and Brain Functions:

Wilson, A. J., Dehaene, S., Pinel, P., Revkin, S. K., Cohen, L., & Cohen, D. (2006). Principles underlying the design of “the number race”, an adaptive computer game for remediation of dyscalculia. Behavioral and Brain Functions, 2(19).

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