Further, particular aspects of teachers» professional community — a shared sense of intellectual purpose and a sense of collective
responsibility for student learning — were associated with a narrowing of achievement gaps in math and science
among low - and middle - income students.14 Strong professional learning communities require leadership that establishes a vision, creates opportunities and expectations for
joint work, and finds the resources needed to support the work, including expertise and time to meet.15 Collaborative teacher teams can improve practice together by: 16