Plan Z Professional Learning Services
Our mission is to offer forward-thinking approaches and ideas that enhance pedagogical practices to elevate learner agency. Our vision is that educators find ways to refocus on their learners and their wellness by finding purpose, prioritizing and paring down. We value the unique needs of educators, their time, and meaningful and relevant professional learning experiences.
You can contact us at [email protected],.
Follow us on Instagram @PlanZEducation and on LinkedIn at tammyplanz.
Our team holds a diverse set of experiences.
Tammy Musiowsky is the founder at Plan Z Education Services. She is an elementary teacher at heart. Like many educators she has held different roles in her career. She is an author, professional learning facilitator, and coach. She has lived in Hawai’i, Singapore, New York City, and Edmonton, Canada and has experience teaching and leading internationally. She is an active member of ASCD and is an ASCD Emerging Leader Alumni. Tammy and co-author, C.Y. Arnold wrote the 2021 published ASCD book, The Minimalist Teacher, and well as other digital publications for ASCD. She and C.Y. have another book coming out in November 2025. Tammy has written several guest blogs for ASCD Inservice, Express, EdWeek Teacher blog, and Achieve the Core. She writes on topics such as creating cultures of learning, student engagement, inclusivity, and student agency. Connect with her on Instagram @PlanZEducation or LinkedIn @TammyPlanZ.
Dr. Krista Leh is an educator, consultant, and advocate for transformative teaching and learning. As the founder of Resonance Education, she equips educators with SEL strategies and resources that enhance instructional practices and optimize student growth. With 27 years in education, Krista has served as a high school social studies teacher, instructional tech coach, and curriculum coach, always championing student leadership. She has worked with educators across 30 states, equipping them with practical SEL strategies to create engaging, inclusive learning cultures. Krista holds a B.S. in Secondary Education, M.Ed. in Curriculum & Instruction, and an Ed.D. in Educational Leadership from Lehigh University, reflecting her deep commitment to lifelong learning.
Christine Arnold is an Australian educator working both at home and abroad. She has worked in Australia, Japan, Singapore, Belgium and The Netherlands as a teacher, coach, mentor, co-teacher, coordinator, tutor, and supervisor from early childhood education to adult education in the university sector. Her dedication to the field of education has led her to serve on the board of the Singapore chapter of SENIA, publish educational articles, and present at various international and Australian conferences. Her interests in education include exploring research-based pedagogy and practice, inclusive education, quality early childhood education, inquiry, and promoting well-being for our students and teaching colleagues.
Nicole Dissinger is an elementary school teacher and mentor teacher. She has over 14 years of experience teaching preschool to grade 3 across three countries; Flagstaff, Arizona, Ukraine, and Singapore. Nicole holds a Bachelor of Science in Elementary Education with an emphasis in Psychology and a Masters Degree in Early Childhood Education with an endorsement in Bilingual Multicultural Education. Nicole has experience with a range of curriculums from Multi-age, state standards, and the International Baccalaureate Primary Years Program. Most recently, she worked as a mentor and coach, training teaching interns and supporting teachers with the PYP curriculum. Connect with her on Instagram @nicoledteacher.
Dr. Daniel J. Keller’s experience in the field of education spans over three decades in four different countries. Dan has worked as a classroom teacher, teacher trainer, principal, head of school, CEO and educational consultant. With a Bachelor of Arts in Philosophy, a Master of Education in Educational Leadership and Policy Studies, and a PhD in Curriculum and Instruction, Dan served as a Visiting Scholar with the University of Cambridge Faculty of Education. As a leader within a number of education organizations, he has presented at a variety of international education conferences. Dr. Keller serves as a University Supervisor in the College of Education at Northern Arizona University.