As a professor at Teachers' College at Columbia University since 1973, she has done extensive research on the teaching profession and has created and developed teacher networks. While at Joint Venture, she worked with Challenge 2000 staff, teams and team leaders, and the 21st Century Education Initiative board. I could see issues in ways you can't see when you're closely involved with the process. Lieberman also worked with Challenge 2000 staff and teacher leaders to launch the Teacher Network, a program that helps teachers support each other's work. She notes that because the network was set up to be flexible and responsive to teacher needs, there is the freedom to be experimental with the series of meetings held throughout the year.
Teachers use outside and inside knowledge to teach other teachers.