Burn down charts
Need help to understand the burndown charts. i failed PSM, due to non understanding of the same :(
This will help, as you can also burn up, a good SM should know what and the how.
http://www.slideshare.net/MatthewWarton/burn-down-vs-burn-up-charts
Try this article for a very concise explanation of burndown charts : http://webgate.ltd.uk/burndown-chart/