The Sprint Burn Down is a technique to display publicly the remaining work of the current Sprint.
Typically a Sprint Burn Down graph is used. On the vertical axis it shows the work remaining in a Sprint. On the horizontal axis it shows the work days of a Sprint.
In the Daily Scrum the Developer updates the Sprint Burn Down and plots the remaining work of the day.
To create this graph, determine how much work remains each day for the rest of the Sprint (e.g. by adding the number of tasks in the Sprint Backlog). Keep track of these sums by day and use them to create a graph that shows the work remaining over time.
By drawing a line through the points on the graph, the Developer can monitor their progress in completing a Sprint’s work.