About Avenues


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.

For the past three years, John has worked out of Avenues headquarters in New York City, directing the academic development and design for Avenues São Paulo.

Hamilton Clark
Head of School

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Anne Baldisseri
Head of Primary Division

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