priligy bestellen

Archive | Our updates

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 […]

Continue Reading 0

Timely Feedback

Many worry these days about providing students with a meaningful and timely feedback.  Many try using modern technology – audio feedback and such.    While very useful sometimes  such approaches can be very time-consuming and not necessarily better than a time-honoured and low tech solution – the Socratic dialogue.   Most teachers I know think […]

Continue Reading 0

Powered by Oxfordshire Web Services