Uncover buried data to close the achievement gap! Standardized test scores only reveal part of the story. Many hidden factors contribute to the achievement gap and chronic low school performance. The authors dramatically illustrate how to mine data from nontraditional sources—disciplinary policies, teacher attendance, special education referrals, and more—to uncover and eliminate systemic inequities. This solution-focused guide helps teachers and leaders: Ask the right questions Verify data that affects graduation rates, special education placement, and the achievement of English learners Effectively analyze data to improve student achievement Challenge the status quo and take action