Category Archives: Number

Allowing Students to Discover the “Mystery” of Square Roots (Surds)

Posted on November 16, 2013 by danpearcy.com

Here’s my attempt at investigating operations with square roots (surds) when you’re not prescribed by a GCSE/IGCSE syllabus. This is only a general outline of the lessons we’ve had so far but it’d be great to hear how other people go … Continue reading →

Posted in Investigations, Number | Tagged square root, Surds | 1 Comment

Percentage Increase and Decrease Applet: Any improvements?

Posted on October 8, 2013 by danpearcy.com

Here’s a Geogebra app I made to help students who were struggling with percentage increase and decrease. Can anyone think of any improvements? Click the picture to go to the link.