NLC Staff

Ellen Concepcion – Executive Director  and Community  Science Workshops Program Manager

Ellen is the co-founder and President of New Leaf Collaborative and oversees the Community Science Workshop Program. She also teaches 7th & 8th grade science at Mare Island Technology Academy. Through New Leaf Collaborative’s programs, Ellen hopes to inspire youth to learn, act and think creatively, confidently and responsibly and to introduce them to career options that lead to sustainable prosperity. She also strives to eradicate single-use plastic.

Email: ellen@newleafcollaborative.org

Mary Peeff – NLC Business Director

Mary is responsible for the management and administration of New Leaf Collaborative (NLC) grants, budgets, contracts, invoices, bookkeeping and financial and corporate compliance.

Email: mary@newleafcollaborative.org

Rona Zollinger – Operations Director

Rona Zollinger is NLC’s co-founding board member and Operations Director. She finds inspiration in the creative process of imagining and designing educational environments that nurture connections between teachers, students, communities and the earth. 

Email: rona@newleafcollaborative.org

Lorena Castillo – Internship Coordinator 

A professional photographer, journalist, and activist. Through her extensive connections in the community, she arranges internships for students who are interested in or considering that career.

Email: LCastillo@martinezusd.net

Tina Wong – Earth Ambassadors Manager and  Empowering Educators Coach

Tina inspires, informs, and enables responsible environmental decision-making and sustainable practices by providing leadership opportunities in education for high school and elementary students to become agents of sustainable change.  She also works to further connect interested Empowering Educators participants to resources that renew a love of teaching, provides opportunities for reflection upon personal strengths, and ultimately re-envisions transformative learning environments for students. 

Email:  tina@newleafcollaborative.org

Erica Thompson and Amy Ross- Ecoliteracy Green Team Instructors

Erica and Amy inspire, inform, and enable responsible environmental decision-making and sustainable practices by providing leadership opportunities in education for high school and elementary students to become agents of sustainable change.

Community Science Workshop Instructors:

Community Science Workshop “CSW” Instructors provides hands-on tinkering with Science, Technology, Engineering, Art and Math (STEAM) in ways that foster curiosity, creativity, perseverance, and critical thinking.  They engage students in grade-level appropriate hands-on science experiences.

  • Nicola Elliot
  • Cassie Kellogg
  • Cecilia LaFleur
  • Julie Mullane
  • Lauren Norse
  • Paul Stroube