Archive for March, 2012

This article was first published on O’Reilly Radar on March 7, 2012

John Seely Brown tells us the half-life of any skill is about five years. This astounding metric is presented as part of the ongoing discussion of how education needs to change radically in order to prepare students for a world which is very different than the one their parents graduated into, and in which change is accelerating.

It’s pretty straightforward to recognize that new job categories, such as data science, will require new skills. The first-order solution is to add data science as a college curriculum and work the prerequisites backward to kindergarten. But if JSB is right about the half-life of skills, even if this process were instantaneous, the learning path begun in kindergarten might be obsolete by middle school. Read more

This article was originally posted on Getting Smart on February 28, 2012

Recently, EdSurge published a fabulous post highlighting the escalating rhetoric that the Khan Academy has inspired among math educators and edupreneurs. Sal Khan’s success has brought to the forefront a discussion that has been ongoing in academic and education circles for some time. This debate parallels the one about Common Core Math Standards exemplified by the Wurman and Wilson article referenced in a recent Getting Smart post.

At the heart of the debates is the tension between teaching students to accurately perform math computation and procedures versus teaching students higher-order mathematics skills. Versions of this debate have persisted through numerous iterations of math reform. As early as 1965, Tom Lehrer quipped in his song, New Math, “but in the new approach, as you know, the important thing is to understand what you’re doing rather than to get the right answer,” a perspective that summarizes the skepticism of parents and employers and leads many an edupreneur to focus on the “rote skills” of memorizing number facts and solving problems procedurally. Read more