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Our Board

Helen Gradstein


Helen Gradstein is the founder of Exponential Education. Helen graduated with a B.S. in Applied Mathematics from UC, Santa Barbara and has her Master's in Global Policy focusing on International Education and Impact Evaluation. Helen has also worked for Innovations for Poverty Action conducting a large-scale evaluation and for Child and Family Research Partnership as a data analyst designing and coding metrics and indicators to monitor and evaluate Texas state childcare policies. Helen currently resides in Washington, DC.

Amber Shevin

Board Member

After first starting with Exponential Education as a Program Manager, Amber has served as both the Director of Operations in the field and as a member of the organization's leadership team. She has Master's and Bachelor's degrees in International Relations and has spent time living, working and traveling across much of sub-Saharan Africa. Amber currently works for the non-profit Pencils of Promise as their Ghana-based Programs Manager. She currently resides in Ho, Ghana.





Denisse is a member of the Executive Board of Exponential Education. Denisse has Master's and Bachelor's degrees in Economics. She is an international consultant to governments and multi-donor organizations focusing on energy policy in Africa and Latin America. Denisse is currently based in Mexico City. Before becoming a consultant, Denisse spent one year in Ghana's Ashanti Region working as the Director of Operations for a local NGO working in education.



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Denisse Halm

Board Member

Adam Biddle

Board Member

Adam Biddle joined the Exponential Education team in early 2013 as a Program Manager in Ghana while he was serving as an education volunteer with the Peace Corps. Adam has his Master's Degree in Biochemical Engineering and currently works as an Engineer with the Department of Veterans Affairs in Michigan where he resides. Adam is passionate about education and spreading Expo programming to the neediest of areas.

Our Team


Expo's management team is a diverse group of young people from different backgrounds working under a common aim of empowering youth and working towards a more just equal future. 

Taylor Chustz

Executive Director



Grace Marfo

Program Manager

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Yasme Asamani Danquah

Director of Operations

Program Associates

Program associates make our work possible! We choose young people who graduated from our programs as students and give them the training and guidance to run their own programs in schools


Sikika Suleman

Girls LEAP Program Associate 


Benita Ansah

Girls LEAP Program Associate


Debrah Pokua Amoah

Girls LEAP Program Associate


Emmanuel Boakye Ansah

BPC Program Associate


Expo is committed to providing training and development opportunities for as many young adults as possible. Through our partnership with No Business as Usual - a youth employability program in Asakore Mampong Municipality - we provide short and long term internships for young people looking to learn about gender issues and at the same time give something back to their community. 


Obeng Ebenezer

Level Up Village Intern


Tajudeen Abdullai

Media/communications Intern


Khadijah Tahiru

Girls LEAP Intern


David Binyoll

BPC Intern

Amina Abubakar

Girls LEAP Intern

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