Our Faculty & Staff
Curiosity is in the air.
Through small classes guided by expert teachers, our faculty support every student to be the best versions of themselves. Our classrooms are places where good questions are more treasured than good answers, and the authentic learning our students experience is both inspiring and transformative.
Looking to contact an individual? You may find the Campus Directory quicker.
Click an individual's name for more information.
Ms. Jenny Treadway
Director of Diversity, Equity & Inclusion, Director of International Programs
B.S., Eastern Kentucky University, Biology and Chemistry
M.S., University of Kentucky, Education and Instructional Technology
M.S., University of Kentucky, Education and Instructional Technology
23 years at PCDS
Ms. Camelia Tumminello
Upper School Spanish
B.A., Yale University, French Literature
M.S., Yale University, French Literature
M.S., Yale University, French Literature
1 year at PCDS
Dr. Sarah Vap
Upper School English
B.A., Brown University
M.F.A., Arizona State University
Ph.D., University of Southern California
M.F.A., Arizona State University
Ph.D., University of Southern California
3 years at PCDS
Mr. Jim Waller
Middle School Mathematics
B.Ed., Arizona State University, Secondary Education, History
M.Ed., Arizona State University, Higher and Postsecondary Education
M.Ed., Arizona State University, Higher and Postsecondary Education
9 years at PCDS
Ms. Kim Wass
Lower School Learning Specialist
B.S., Iowa State University, Elementary Education
5 years at PCDS
Ms. Maddie Williams
Lower School First Grade
B.S., Arizona State University, Educational Studies
5 years at PCDS
Mrs. Molly Williams
Upper School Counselor, Director of Project Excellence
B.S.W., Concordia College, Social Work
M.S.W., Arizona State University, Social Work
M.S.W., Arizona State University, Social Work
14 years at PCDS
Ms. Joanna Wisniewska
Lower School Fourth Grade
B.A., Arizona State University, Education - Early Childhood Teaching and Leadership
M.Ed., Northern Arizona University - Bilingual and Multicultural Education
M.Ed., Northern Arizona University - Bilingual and Multicultural Education
5 years at PCDS
Ms. Debra Wood
Science Dept. Chair, Middle School Science
B.A., Washington and Jefferson College, Biology
M.A., Slippery Rock University, Counseling Psychology
M.A., Slippery Rock University, Counseling Psychology
7 years at PCDS
Mr. Stefan Youngs
Technology Support Specialist
B.S., University of Arizona, Psychology (Neural Sciences)
9 years at PCDS
