About
This simulation is designed to help visualize the comparing various fractions from 1/20 to 1 for primary mathematics.
more resources can be found here
http://iwant2study.org/ospsg/index.php/interactive-resources/mathematics

Interesting Fact
This app is created by an ordinary teacher, not a professional vendor.

Acknowledgement
My sincere gratitude for the tireless contributions of Francisco Esquembre, Fu-Kwun Hwang, Wolfgang Christian, Félix Jesús Garcia Clemente, Anne Cox, Andrew Duffy, Todd Timberlake and many more in the Open Source Physics community.

Network Learn together?
FaceBook Fan Page: https://www.facebook.com/Open-Source-Physics-Easy-Java-Simulation-Tracker-132622246810575/
Twitter: https://twitter.com/lookang
YouTube: https://www.youtube.com/user/lookang/videos
Blog: http://weelookang.blogspot.sg/
Digital Library: http://iwant2study.org/ospsg/