I'm reading the book Think Again, by psychologist Adam Grant, and I noticed a footnote talking about the importance of paying your workers enough. Mr. Grant was speaking in general terms, but I think that this footnote on page 114 has special application to the teaching profession:
Pay isn't a carrot we need to dangle to motivate people -- it's a symbol of how much we value them. Managers [administrators, for schoolteachers] can motivate people by designing meaningful jobs in which people have freedom, mastery, belonging, and impact. They can show appreciation by paying people well.
It really is that simple.