“Three Big Ideas That Drive the Work of a PLC The essence of the PLC process is captured in three big ideas: 1. The purpose of our school is to ensure all students learn at high levels. 2. Helping all students learn requires a collaborative and collective effort. 3. To assess our effectiveness in helping all students learn we must focus on results—evidence of student learning—and use results to inform and improve our professional practice and respond to students who need intervention or enrichment.”