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One method of randomly choosing names for variables. For each variable, we have 4 options. Create a list of 4 numbers, which is 1 for the name we want to use, and 0 otherwise.
Then, whenever we use that variable, multiply each of the possible names by the corresponding number in the list. When the expression is simplified, the unwanted names will cancel to 0, leaving only the name we want.
This is quite clunky!
(This question also uses a custom marking script to check that the student has simplified the expression)
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Q1 by Peter Johnston
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England schools
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England university
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Scotland schools
Taxonomy: mathcentre
Taxonomy: Kind of activity
Taxonomy: Context
Contributors
History
Christian Lawson-Perfect 7 years, 11 months ago
Published this.Christian Lawson-Perfect 7 years, 11 months ago
Created this as a copy of Q1.Name | Status | Author | Last Modified | |
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Randomise variable names - list of coefficients version | draft | Christian Lawson-Perfect | 09/12/2019 10:36 | |
Randomise variable names - expression() version | Ready to use | Christian Lawson-Perfect | 05/05/2021 10:43 | |
Ben's copy of Randomise variable names - expression() version | draft | Ben Brawn | 08/06/2017 05:00 | |
David's copy of Randomise variable names - expression() version | draft | David Wishart | 19/05/2017 23:58 | |
Andrew's copy of Randomise variable names - expression() version | draft | Andrew Iskauskas | 23/11/2017 08:51 |
There are 34 other versions that do you not have access to.
Name | Type | Generated Value |
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a | list |
[ 1, 0, 0, 0 ]
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b | list |
[ 0, 1, 0, 0 ]
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c | integer |
3
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d | list |
[ 0, 0, 0, 1 ]
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Generated value: list
[ 1, 0, 0, 0 ]
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