Karen Marshall

Director of Field-Based Learning

For twenty years, Karen was an 8th grade science teacher and director of science curriculum at the International School of Louisiana. Karen’s passion for designing and enacting field-based learning experiences is at the center of her practice as a teacher and teacher-leader. She recently completed her certification as a Louisiana Master Naturalist and holds encyclopedic knowledge of the many local water bodies and other locations for staging inquiry-based field experiences for students and teachers. Karen’s expertise lies in pushing teachers outside the confines of their classroom (and often, outside their comfort zones) to learn how to use local environments to facilitate inquiry-based learning experiences. She teaches teachers how to define environmental questions with students, then collect and analyze data in pursuit of those questions. Karen has won numerous awards for her teaching and leadership in science education. She attended Xavier University of Louisiana, where she received her Bachelor of Arts in Biology.

In addition to her work with Ripple Effect, Karen is an educator at the Louisiana Universities Marine Consortium (LUMCON).

Past and Current Projects

Publications & Presentations

Anderson, C., Henderson, J., Johnson, S., Marshall, K., & Sprague, B. (in press). Puddles to Floods: Field-based investigations on flooding in New Orleans. Science & Children.


Anderson, C., Henderson, J., Johnson, S., Marshall, K., & Sprague, B. (2024). Moving Through Uncertainty: Supporting Teachers and Students in Shifting to Inquiry-based Science while Learning about Stormwater Flooding in New Orleans. www.rippleeffectnola.com.

Meet the rest of our team