Translations
Software Requirements
Android  iOS  Windows  MacOS  
with best with  Chrome  Chrome  Chrome  Chrome 
support fullscreen?  Yes. Chrome/Opera No. Firefox/ Sumsung Internet  Not yet  Yes  Yes 
cannot work on  some mobile browser that don't understand JavaScript such as.....  cannot work on Internet Explorer 9 and below 
Credits
This email address is being protected from spambots. You need JavaScript enabled to view it.; Francisco Esquembre; Felix_J_Garcia_Clemente
end faq
Sample Learning Goals
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For Teachers
Video
video 1: question what is 1/4+2/4 = ?
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

video 1: question what is 1/4+2/4 = ?, answer is 3/4
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

video 2: question what is 1/5+3/5 = ?
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

video 2: question what is 1/5+3/5 = ? answer is 4/5
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

video 3: question what is 2/7+1/7 = ?
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

video 3: question what is 2/7+1/7 = ? answer is 3/7
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

Questions:
Question 1: what is 1/4+1/4 = ?
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

Question 1: what is 1/4+1/4 = ? answer is 2/4 which is simplified to 1/2
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

Question 2: what is 5/9+1/9 = ?
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

Question 2: what is 5/9+1/9 = ? answer is 6/9 which is simplified to 2/3
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

Question 3: what is 2/5+1/5 = ?
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

Question 3: question what is 2/5+1/5 = ? answer is 3/5
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

Question 4: what is 3/6+2/6 = ?
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

Question 4: what is 3/6+2/6 = ? answer is 5/6
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

Question 5: what is 1/2+1/2 = ?
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

Question 5: what is 1/2+1/2 = ? answer is 2/2 which is simplified to 1
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

questions:
question 1: what is 3/5+1/5 = ?
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

question 1: what is 3/5+1/5 = ? answer is 4/5
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

question 2: what is 4/9+2/9 = ?
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

question 2: what is 4/9+2/9 = ? answer is 6/9 which is simplified to 2/3
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

question 3: what is 4/11+5/11 = ?
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

question 3: what is 4/11+5/11 = ? answer is 9/11
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

question 4: what is 3/7+1/7 = ?
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

question 4: what is 3/7+1/7 = ? answer is 4/7
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

question 5: what is 7/10+2/10 = ?
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

question 5: what is 7/10+2/10 = ? answer is 9/10
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

Video on subtraction:
video subtraction question 1: what is 5/61/6 = ?
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

video subtraction question 1: what is 5/61/6 = ? answer os 4/6 which is simplified to 2/3
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

video subtraction question 2: what is 4/53/5 = ?
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

video subtraction question 2: what is 4/53/5 = ? answer is 1/5
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

video subtraction question 3: what is 7/95/9 = ?
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

video subtraction question 3: what is 7/95/9 = ? answer is 2/9
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

random feature included for lots of unexpected fun
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

random feature included for lots of unexpected fun
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

Options
rectangles for block visualisation
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

horizontal rectangles for block visualisation
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

rectangles for block visualisation
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

horizontal rectangles for block visualisation
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

horizontal rectangles for block visualisation
Add and Subtract Fractions JavaScript HTML5 Applet Simulation Model

Research
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Video
[text]
Version:
 http://weelookang.blogspot.sg/2017/09/addandsubtractfractionsjavascript.html
 https://vle.learning.moe.edu.sg/lesson/view/6772fab7bfd344d3b665e86b66bddeac#page2 login required
 http://www.geogebra.org/material/show/id/BTCSvEDZ by lewws
Other Resources
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