Scrum vs. kanban
Kanban and scrum share some of the same concepts but have very different approaches. They should not be confused with one another.
Some teams blend the ideals of kanban and scrum into "scrumban." They take fixed length sprints and roles from scrum and the focus on work in progress limits and cycle time from kanban. For teams just starting out with agile, however, we strongly recommend choosing one methodology or the other and running with it for a while. You can always get fancy later on.