How long is my toilet roll? – a simple exercise in mathematical modelling
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The simple question of how much paper is left on my toilet roll is studied from a mathematical modelling perspective. As is typical with applied mathematics, models of increasing complexity are introduced and solved. Solutions produced at each step are compared with the solution from the previous step. This process exposes students to the typical stages of mathematical modelling via an example from everyday life. Two activities are suggested for students to complete, as well as several extensions to stimulate class discussion.
International Journal of Mathematical Education in Science and Technology
© 2013 Taylor & Francis. This is an electronic version of an article published in International Journal of Mathematical Education in Science and Technology, Volume 44, Issue 6, 2013, pp. 938-950. International Journal of Mathematical Education in Science and Technology is available online at: http://www.tandfonline.com with the open URL of your article.
Mathematics and Numeracy Curriculum and Pedagogy