Tool: Old Egyptian Fractions for Android 


Go to:  http://play.google.com/store/apps/details (opens a new window)  
Description:  This is the Android version of the Mathcats Old Egyptian Fractions: Old Egyptian Math Cats knew fractions like 1/2 or 1/4 (one piece of a pie). But to make fractions like 3/4, they had to add pieces of pies like 1/2 + 1/4 = 3/4. Old Egyptian Math cats never repeated the same fraction when adding. They never wrote: 1/4 + 1/4 + 1/4 = 3/4 In ancient Egypt fractions with numerator 1 or always written as a sum of fractions with numerator 1. So the fraction 2/3 would be 1/2 +1/6. It has a certain logic if we consider a particular case: if we divide two loaves among three people will give each bread half (1/2) and a third of the bread is left half (1/6). With the Android app Old Egyptian Fractions can practice this type of decomposition in a very visual way. 

Technology Type:  Android  
Guide:  User's Guide (opens a new window)  
Author:  Wendy Petti & Maurici Carbo  
Language:  English  
Cost:  Does not require payment for use  
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Tool:  Old Egyptian Fractions  
Courses:  Math 1  Fractions  
Math 2  Fractions  
Math 3  Fractions  
Math 4  Writing fractions, Equivalent fractions, Comparing and ordering, Simplifying fractions, Adding fractions, Subtracting fractions  
Math 5  Writing fractions, Equivalent fractions, Comparing & ordering, Simplifying fractions, Adding fractions, Subtracting fractions, Multiplying fractions, Dividing fractions  
Math 6  Writing fractions, Equivalent fractions, Comparing & ordering, Simplifying fractions, Adding fractions, Subtracting fractions, Multiplying fractions, Dividing fractions  
Math 7  Writing fractions, Equivalent fractions, Comparing & ordering, Simplifying fractions, Adding fractions, Subtracting fractions, Multiplying fractions, Dividing fractions  
