This story is part of a series from the Education Reporting Collaborative in partnership with AL.com. At the Erikson Institute, a child-development-focused graduate school in Chicago, this annual ...

The Hechinger Report covers one topic: education. Sign up for our newsletters to have stories delivered to your inbox. Consider becoming a member to support our nonprofit journalism. Students, parents ...

Students, parents and school principals all instinctively know that some teachers are better than others. Education researchers have spent decades trying — with mixed success — to calculate exactly ...