Our Team

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Peter DeWitt, Ed.D.

  

Peter DeWitt (Ed.D) is a former K-5 teacher (11 years) and principal (8 years). He is a best-selling author, and runs competency-based workshops and provides keynotes nationally and internationally focusing on school leadership (collaborative cultures and instructional leadership), as well as, fostering inclusive school climates. His work has been adopted at the state level, university level, and he works with numerous school districts, school boards, regional networks, ministries of education in North America, Australia, Scandinavia and the U.K. 


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Jenni Donohoo, Ph.D.

Jenni Donohoo is a best-selling author and professional learning facilitator with more than 20 years’ experience in leading school change. Jenni has a PhD in Educational Studies, Supervisory Officer Qualifications, and is the former president of Learning Forward Ontario. Jenni has taught elementary, secondary, and post-secondary classes and has also designed and taught Experienced Principals’ Courses for the Ontario Principals’ Council. In her current role on contract with the Council of Ontario Directors of Education, Jenni is conducting educational research related to English Language Learners.

Announce coming events

Having a big sale, on-site celebrity, or other event? Be sure to announce it so everybody knows and gets excited about it.

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Sonja Alexander, Ph.D.

 Dr. Sonja Hollins-Alexander is the Director of Professional Learning for Corwin Publishing. She has been in the field of education for 26 years with 21 of those being in educational leadership at the school, district and higher education levels. During this time, she has served as a school social worker, teacher, assistant principal, principal, coordinator, assistant director and director of professional learning, and chief of staff in two Metro Atlanta, GA school districts. She has served on numerous United Way non-profit boards in the community. 

She is fully engaged in the development and use of Online Collaborative/Instructional Software. She is the author of Online Professional Development through Virtual Learning Communities, Corwin Press (2013).” 

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Tommy Thompson

 As a school principal, Tommy Thompson is recognized for turnaround efforts that transformed a “failing” school, to one being nationally recognized. He has also been recognized at the state level and called upon to share best practices that have yielded gains in every metric currently used to assess school effectiveness. Mr. Thompson is an experienced educational leader and consultant that works with school districts throughout the United States. He has been featured in several publications such as Rigorous Curriculum Design, Common Formative Assessment, and Courageous Leadership. He is currently in the process of writing a book on Teacher Credibility titled “The IT Factor: Why Students Believe In Some Teachers & Not Others (Corwin Press).

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Mary Spencer

Mary Spencer taught Special Ed for 26 years, teaching students ranging from the Mild to the Severe and Profound Intellectual Disabilities with elementary and middle school students. She was department chair for Special Ed for 17 years. She then became a high school Assistant Principal for 9 years and had the opportunity to chair many professional departments, implement various educational processes and facilitate countless programs as well as present at leadership conferences. As a retired administrator, she continues to work with education as a leadership coach in DeKalb County Schools and Henry County Schools. 

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John Willis

John Willis is Coordinator in the Office of Staff Development and strives to build the leadership capacity of educators through Mentor Gwinnett, GCPS’ New Teacher Mentoring & Induction Program, as well as with the district’s Coach Endorsement program. John has received a specialist degree in leadership and a masters in Organizational Development, both from the University of Georgia. He also has extensive coach training through the Coach Training Institute and CRR Global. John is always seeking to push his programs towards transformational change through integration of research and experience. 

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Diana Dal Bello

Diana has worked in the field of education in a variety of capacities for 28 years. She has an MA in Education from the University of Toronto. As an elementary principal, she has taken the role of leading collaborative inquiry teams and promoting collective efficacy amongst staff. Diana believes that building trusting relationships is at the core of coaching. She has worked with teachers and administrators to co-construct goals, focus on research-based instruction and reflect on practices to maximize impact on learning.

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Yana Ioffe

Passionate about and committed to leading and learning, Yana brings over 30 years of experience serving as Curriculum and Instruction Consultant, Leadership Coach, Rounds Facilitator,Tribes Trainer, and Principal in diverse communities. 

Yana is an insightful coach and mentor who nurtures and develops leaders, and who empowers people to self-actualize.  At the core of Yana’s values is a focus on building collective efficacy through strong trusting relationships, guided by principles of equity, respect and inclusion.

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Aleigha Henderson-Rosser, Ph.D.

Dr. Aleigha Henderson-Rosser currently serves as the Executive Director of Instructional Technology in Atlanta Public Schools.  She has worked as central office leader for more than 15 years. Her view of various roles in the Central Office has led her to amass a wealth of knowledge around innovative central office leadership. She has inspired various departments to create exciting award-winning initiatives that have moved the work of districts around Professional Learning, School Leadership and Technology Instruction. Her International and National involvement in the technology community consists of serving as founding member and Board member of the International Association for K-12 Online Learning (iNACoL), Georgia Chapter, member of the Learning Forward (formerly National Staff Develop Council), member of the International Society for Technology Education and member of the International Forum for Women in e- Learning (IFWE). 

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Ken Lein, Ed.D.

Ken Lein (Ed. D.) has been an educator for 31 years. His roles have included teaching in both Elementary Education and Special Education, Elementary Principal, Instructional Leadership Director (principal coach) and Assistant Superintendent for Curriculum and Instruction. His career includes rural, suburban and urban settings. He is currently in his sixteenth year as an elementary principal, and his tenth in his current position for the City School District of Albany in Upstate New York. He has been an adjunct professor at the Sage Graduate School in Troy, NY. He completed his doctoral dissertation on self-efficacy at the Sage College of Albany. He continues to work on creating the space to develop both personal and collective efficacy. 


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Jennifer Marten, Ph.D.

Jennifer Marten (PhD, NBCT) is a former K-5 teacher (21 years), Gifted & Online Program Coordinator (9 years), and Curriculum Director (2 years). She currently works as a curriculum coordinator in a K-2 setting, an adjunct instructor for preservice teachers, and as a consultant for curriculum and program assessment and development. Her work focuses on the effective use of feedback and formative assessment, equity for all students, and instructional coaching.

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Caroline Picard

Caroline Picard has had a successful career as a motivational leader working collaboratively with board members, executive staff, union representatives, district staff, school principals, school communities, to develop and ensure students learning while fostering a vibrant and thriving educational environment. Fully bilingual with vast experience and skill set in a K to Grade 12 setting as a teacher, school administrator, manager of professional learning and assistant superintendent of schools that brings a level of expertise and commitment to enhance and promote the values, vision, and mission of the organization.