4Share of U.S. online population who have used smartphone, tablet or e-reader to take online classes or tutorials as of January 2014, by age[EB/OL].http://www.statista.com/statistics/334055/us-mobile- online-classes-and-tutorial-reach-age/,2016-02-10.
5Ed Tech Developer's Guide[EB/OL]. http://tech.ed.gov/developersguide/, 2016-02-10.
7MathsEverywhere.Country Profile: United Kingdom Of Great Britain and Northern Ireland[EB/OL]. http://www.unesco.org/uil/ litbase/?menu=4&programme= 174, 2016-02-10.
8IU center awarded Library of Congress grant for educational app development[EB/OL].http://news.indiana.edu/releases/iu/2015/10/ representative-government-grant.shtml,2016-02-10.
9Mathtoons Media Receives Support from the Government of Canada[EB/OL], http://www.backbonemag.com/Backblog/mathtoons- media-receives-support-from-the-government-of-canada. aspx,2016-02-10.
10Dorothy DeWitt, Norlidah Alias,Zainuddin Ibrahim,Ngu Kee Shing,Syar Meeze Mohd. Rashid.Design of a Learning Module for the Deaf in a Higher Education Institution Using Padlet[A].lnternational Educational Technology Conference, IETC 2014[C].Chicago:Procedia - Social and Behavioral Sciences,201.220-226.
