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- S Curtis, Brune Park CC
- Monday, April 21, 2008
- "One of my more industrious students thought it clever to sequence it as follows:
y-1 = x
2y-5 = x
3y-9 = x etc..." - Heeley's Y7 brainboxes, Rawthorpe High, Huddersfield
- Friday, April 25, 2008
- "We thought this was bare cushtie (this means very good)! we recognised that there are an infinite number of possibilities.
Watch out for Mr Heeley on Teacher's TV on May 5th at 10pm. (Sky channel 880, Virgin 240).
God bless you all at Transum
Love Y7 xx" - N. Cox, Woodbridge, Suffolk
- Wednesday, April 22, 2009
- "Excellent open-ended starter which led to work with powers, brackets roots and many different types of equations."
- 7ab/M4 The Best Maths Class In KA's, King Alfred's College OXON
- Tuesday, April 05, 2011
- "Some students in the class came up with these examples:
yxyxxyxxxxy=524288
yxyyx=2048
Then we thought about squaring the values."
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This starter has scored a mean of 2.9 out of 5 based on 41 votes.
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Extension
There are of course no end of correct answers and here are some examples.
There is at least one mistake. Can you find the errors when x=3 and y=4?
| x + y = 7 | x - y = 1 | y - x = 4 |
| 2x + 3y = 18 | 5x - 2y = 7 | 4y - x = 13 |
| xy - 10 = 2 | 180 - 2x + y = 178 | 20x - 3xy = 24 |
| x2 + y = 13 | 10x - y2 = 14 | y2 - x2 = 7 |
| x2y + 13 = 49 | x2y2 - 2x = 138 | x2y3 = 576 |
| x! + y = 10 | 5(x + y) = 52 | 3y รท x = 4 |
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xy
2
|
84
xy
|
36y
5x
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Here is the URL which will take them to a concise version of this page.
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them to a related activity.
The errors are in equations numbered: 2, 3, 17, 21,
Maths is Important!
"Mathematics equips pupils with uniquely powerful ways to describe, analyse and change the world. It can stimulate moments of pleasure and wonder for all pupils when they solve a problem for the first time, discover a more elegant solution, or notice hidden connections. ...
Mathematics is a creative discipline. The language of mathematics is international. The subject transcends cultural boundaries and its importance is universally recognised. Mathematics has developed over time as a means of solving problems and also for its own sake."
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