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