Power Maths   

Sidney Schuman BA  (ret. Lewisham College)

 

In calculus teaching, the differential power rule is established first and the integral power rule is given as its inverse

Click  HERE  to see how the integral power rule can be obtained as a pre-calculus taster using the mid-ordinate rule

 

(Based on the article 'Tinkering with the calculus power rules' published in The Mathematical Gazette, July 2003)

 

 

Incidentally, this is an interesting way of showing that the product of two negative numbers is positives