Tag Archives | comprehension over competency

Division by zero is undefined!

A rather confused discussion of this statement appeared recently on http://www.linkedin.com/groups?home=&gid=33207&trk=anet_ug_hm Here is my take on things: Division by zero is undefined whether you work with real numbers or complex numbers. Khan’s video on the subject is a bit confusing. The consistent exposition of algebra is given in Euler’s “Elements of algebra”.  There division is defined by saying that a/b=x, a unique […]

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I  am listening to a programme on the radio by Alex Bellos extolling the virtues of teaching arithmetics as music.  I always feel sad when teachers put competency over comprehension.  Of course, at work, competency is king, what matters is only whether you accomplish your tasks and how quickly.  But when learning, comprehension should be paramount, eventually it […]

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