About Avenues

Leadership

John Ciallelo
John Ciallelo
Head of Secondary Division

John Ciallelo is an internationally distinguished leader and educator with a career spanning more than 35 years in prestigious schools located in the United States, Spain, Saudi Arabia, Serbia and Brazil, including 25 years in São Paulo at Chapel School, one of the leading international schools in Brazil. After serving as division head in both the primary and secondary divisions of Chapel, he became head of school, spending 10 years in that role. During his tenure at Chapel, John was not only responsible for recruiting both local and international faculty and creating a talented community of learners but also led numerous curriculum revisions and professional development initiatives that increased student performance across all grade levels. Additionally, John successfully spearheaded advancements in the school’s secondary program to better prepare students for the highly selective international universities and the Brazilian Vestibular.

John joined Avenues: The World School in 2013, and directed the academic development and design for Avenues São Paulo from headquarters in New York. He is now head of Secondary Division of the São Paul campus.

Hamilton Clark
Head of School

With nearly 40 years of experience in education, Hamilton “Ham” Clark is one of the most...

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Anne Baldisseri
Head of Primary Division

Anne Taffin d’Heursel Baldisseri creates conditions for instructional excellence by building...

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