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Author: Michael Goldenberg

Typical algorithms for doing square roots by hand require estimation. I have taught a different algorithm that does not rely on estimation but instead uses subtraction of successive odd …

James Grime is a mathematician with a personal passion for maths communication and the promotion of mathematics in schools and to the general public. He can be mostly …

Subtraction: What is “the” Standard Algorithm? One common complaint amongst anti-reform pundits is that progressive reform math advocates and the programs they create and/or teach from “hate” standard …

An Interview with Alan Schoenfeld: At the Boundaries of Effective Mathematics Thinking, Teaching, and Learning Alan Schoenfeld is the Elizabeth and Edward Conner Professor of Education and …

What would make you write a book about writing a book you recently published on a 13th-century mathematician? When you’re Stanford University’s Keith Devlin (aka, NPR’s “The Math Guy”) …

Models and Delving Deeper Into Division Last month, we unpacked the long-division procedure taught in American K-6 classrooms, tied it into the standard “long multiplication” algorithm, discussed issues …

An Interview with Keith Devlin: An Ambassador of Mathematics for Many Eras Dr. Keith Devlin is a co-founder and Executive Director of the university’s H-STAR institute, a co-founder …

Look familiar? For most people, if they ever learned to do long division properly, they had to “master” something similar to the above procedure/algorithm. What was not required …

After first hearing of James Tanton (the subject of our April 2017 interview), I was excited to discover that he had books in print. The first one I …

My guest this month is James S. Tanton, a mathematician, math educator, and author. He was awarded the Kidder Faculty Prize for his teaching at the The St. …