Professional Learning Communities

Kristi Mixdorf has 27+ years of experience as an educator. She has led culture and climate initiatives, developed school improvement plans, and led the implementation of the PLC process, resulting in her school becoming a Model PLC at Work® School.

Kara Tidemann has successfully served for over 25 years in education. As a building leader she successfully led an underperforming school to high performance, earning Model PLC at Work® school status for demonstration of exceptional academic achievement over time.

Obie Leff has more than 30 years of expertise in education and leadership. He currently serves as director and principal of Twin Rivers Charter School, a 2024 Model PLC at Work® and National Blue Ribbon School.

Rebecca Williams, executive director of academic programs for Fulton County Schools, has over 15 years of instructional leadership experience. She led Webb Bridge Middle School in Alpharetta, Georgia, enhancing student achievement and transforming school culture.

Lori Curtis has over a decade of professional learning systems experience and currently serves as the executive director of learning, instruction, and technology in the White River School District, a Model PLC district in Buckley, Washington.

Karen Johnson is the coordinator of Language Acquisition for the Pleasanton Unified School District Pleasanton, California. She is passionate about the topics of equity, inclusion, and ensuring high levels of learning for all students.

Faith Short is the principal at East Pointe Elementary. With 25 years of experience in education, she is fiercely passionate about the work of collaborative teams as a vehicle to ensure high levels of learning for every student. She specializes in helping leaders and teachers implement the PLC process to impact teaching and learning.

Joshua Ray, EdD, is principal at Greenwood High School in Arkansas. He has served as an administrator at the elementary, middle, and high school levels and is a passionate advocate for adult learning and educator well-being.

Claire Springer is a partner in education specializing in master scheduling at the elementary level, creating school systems to support the professional learning community process, and implementing data protocols to monitor high levels of learning for all. She has 13 years of experience in education, eight of those years in school leadership.