Posted: May 30, 2014
http://www.learnalberta.ca/content/me3us/flash/
Click on Data Analysis, then Bar Graphs
http://www.kidsmathgamesonline.com/numbers/mathdata.html
http://www.softschools.com/math/data_analysis/bar_graph/activities/favou...
http://www.harcourtschool.com/activity/lets_graph/
http://www.topmarks.co.uk/Flash.aspx?f=barchartv2