Tag Archives: Surd

257. Making the absurd Rational

Here’s a nifty little resource for you, once again inspired by @MrReddyMaths


Image Credit: http://blog.spaldingacademy.k12.ne.us/sa/files/2010/09/math-3.gif

This worksheet takes you through the process of rationalising fractions where the denominator is a surd. All of the numerators are integers to make the focus the denominator.

Updated version of (pdf)

This new version is A4 sized to allow more space for working out.

If you like this, why not try out these:

232. Steps in Volume

241. Histogram Hysteria


203. Sunny Surd Sunflower

Today we have a guest contributor to the Sandpit – my colleague BH.

His Year 9 class have been studying Surds. They have just completed two particularly difficult Tarsia puzzles on simplifying surds. He celebrated their success by getting the class to create a ‘Sunny Surd Sunflower’ – what a great way to celebrate springtime and achievement.


UPDATE: Inspired by the bright sunflower, my class created an AVERAGE caterpillar!