Our Leadership Team

The Teaching Strategies leadership team consists of a diverse group of professionals with expertise in education, business, customer support, and software development and design. They each share a passion for supporting educators as they teach children to become creative, confident thinkers.

Kai-leé Berke

Chief Executive Officer

Kai-leé is the CEO of Teaching Strategies, the leading provider of early childhood solutions for programs serving children from birth through third grade. She is a lifelong early childhood educator, having taught and cared for infants, toddlers, preschoolers, and kindergarteners in public, private, and Department of Defense programs.

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Ashley Mathis


Ashley is responsible for advancing Teaching Strategies’ mission to provide high quality curriculum and assessment resources for children across the birth to third grade continuum.

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Heather O’Shea

Chief Financial Officer

Heather leads the finance, accounting and legal functions at Teaching Strategies, ensuring optimal resource allocation in support of our mission.

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Dr. Vincent J. Costanza

Chief Academic Officer

Vincent leads company initiatives toward building a systemic approach to research, professional development, formative assessment, and curricular support throughout the B-3rd continuum.

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Denis Khazan

Vice President of Engineering

Denis oversees the Technology Product Development team at Teaching Strategies. He is responsible for building our team based on technology and software development objectives, creating our product architecture and establishing software development processes.

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Tia Kaul Disick

Chief Marketing Officer

Tia oversees the Marketing, Communications, Brand, and Creative Services teams at Teaching Strategies, ensuring alignment of each department’s functions to the company’s mission, vision, and “voice.”

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Jonah Stuart

Vice President of Public Policy & Government Relations

Jonah brings a wealth of public policy knowledge and expertise to Teaching Strategies, where he leads the company’s federal and state policy and advocacy agenda and supports state-level partnerships.

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Vineet Gambhir

Chief Human Resources Officer

Vineet is a seasoned HR executive with over 23 years of international experience in human resources, HR information systems and global operations.

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Heather Wiederstein

Vice President of Product Management

As the Vice President of Product Management, Heather is responsible for defining, planning, and ensuring the successful delivery and execution of our digital products at Teaching Strategies.

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