2n + 6


2n + 2


4 - 2n


2n + n2



Which is the Nincompoop, the one without a partner?

Click on a button below to change the expressions. You are currently looking at level 2

Very simple expressions

Simple expressions with brackets

Slightly more difficult expressions


Topics: Starter | Algebra

  • Transum,
  • So the sheep move around! Annoying isn’t it? But in real life things move, mathematics can be dynamic rather than always presented in a traditional and expected way. In addition to understanding the algebra pupils will need to find a strategy for keeping track of the sheep so that they can put pairs together and find the odd one out. Did any of your pupils come up with a smart way of solving this problem?
  • Frustrated, Thailand
  • Doesn't seem to work. it's just sheep moving round a screen with no way of selecting the one you want.

    [Transum: Ah, I see your frustration! While many of the activities on this site are interactive, this one was not. However, thanks to your suggestion, it has been changed so that you can drag the sheep as you wish across the screen to pair them up. Thanks for the idea.]
  • David Payne, St Anne's Southampton
  • Love this. Thanks again!
    Did you notice the spelling mistake - espressions!

    [Transum: Thank you so much for taking the time to tell me of the typo. Much appreciated. I have now made the correction and hope you'll now love this Starter even more. Thanks again.]
  • David Payne, Sta Anne's Southampton
  • I liked it so much I'm using it again today (with a different class). We're trying to work out why it's called Nincompoop.
    Is it just that the stupid sheep is the one without a friend or is there a deeper meaning?
  • Transum,
  • It is wonderful to hear that you are using this activity again David. Nincompoop was the favourite word of Mr Harris, my Primary school Year 5 teacher many many years ago. I don't know where the word comes from and most dictionaries play safe and list it as 'origin unknown'. It is a silly-sounding word for a foolish person but seemed apt for a sheep that had a unique algebraic expression. I suppose it makes a more memorable, intriguing title for an activity than 'Algebraic Expression Without An Equivalent'!

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