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| == Fractions == | | == Abacus/Worksheet == |
| ===The Fraction abacus===Start Abacus [[File:Abacus-icon.png]],
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| | Read at https://help.sugarlabs.org/abacus_worksheet.html |
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| select the Fraction abacus.
| | The source file has been moved to [https://github.com/godiard/help-activity/blob/master/source/abacus_worksheet.rst GitHub] |
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| [[File:Functionabacus.jpg]]
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| Slide one of the 1/2 beads to represent 1/2
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| [[File:Abacus1of2.jpg]] | |
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| Another way to represent 1/2 is to slide half of another string of fraction beads, for example slide 2 of the 1/4 beads. That is (2 x 1)/4 = 2/4 = 1/2
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| [[File:Abacus2of4.jpg]]
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| How many ways can you make 1/2, remember you can use 2 strings eg. 1/3 + 1/6 = 1/2
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| If using just one string, only some of the strings of beads can be used to make 1/2. Which ones? Why?
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| How do you know if you have found all the solutions?
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| ===The Caacupé abacus===
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| Load the Caacupé abacus
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| It can represent negative whole numbers and fractions. 1/2 can be represented as 1 - 1/2 or 10 - 9 - 1/2
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| How many different ways can you represent 1/2 , 1/3, 2/3
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| How do you know when you have found them all?
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| Find all the ways to make 1/3 and 2/3
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| see the [[Activities/Abacus/Worksheet/Answersheet | answersheet]]
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Latest revision as of 23:48, 14 June 2018
Abacus/Worksheet
Read at https://help.sugarlabs.org/abacus_worksheet.html
The source file has been moved to GitHub