Equivalent Fraction Explorer
http://thewessens.net/ClassroomApps/Main/equivalentfractions.html?topic=number&id=21
Interactive, Publisher, The Mathenæum
This app provides an interactive visualisation of equivalent fractions by arranging a grid into various groupings, and, when valid, presenting the corresponding fraction and it's reduced form.
24 April 2019 Edit: 25 April 2019
User submitted, thanks to Ken Wessen
- Content Type:
- Interactive, Publisher, The Mathenæum
- The Australian Curriculum
- Number and Algebra, Fractions and decimals, ACMNA131 Year 6 Make connections between equivalent fractions, decimals and percentages
- The Australian Curriculum Version 9.0 New
- Year 5, Number Year 5, AC9M5N04 recognise that 100% represents the complete whole and use percentages to describe, represen
- NSW Mathematics K-10 Syllabus
- Number and Algebra, MA3-7NA Fractions, Decimals and Percentages, MA4-5NA Fractions, Decimals and Percentages
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Ken Wessen on 17 May 19 at 07:16 AM #CONTRIBUTOR
Thanks for the feedback.
This reflects an inherent ambiguity in division. Is it sharing in equal parts (pieces of pie)? Is it making equal groups (players per team)? This activity focusses on the “grouping” aspect, showing the equivalence between 15 players in 3 teams of 5 and 18 players in 3 teams of 6 say. The “whole” is indeed of different size. If the blocks were rescaled to keep the “whole” size the same, they would no longer be square and the rearrangement aspect would no longer work.
There is an alternative activity listed under the RELATED heading that uses a Singapore bar model to emphasise the sharing aspect of fractions - the bar is constant size and the parts are reduced.
heather@workingmaths.net on 16 May 19 at 11:36 AM #
The equivalent fractions represented in this model have different-sized “wholes”. This could mislead students who do not realise that the larger the denominator, the smaller the parts.