Join us April 17-19 for the BioLogos national conference, Faith & Science 2024, as we explore God’s Word and God’s World together!


Mark Witwer

Mark Witwer served for 41 years in four Christian schools, teaching many courses but especially Earth Science, Physics, Zoology, and middle school life and physical science. Mark also served as an administrator, leading curriculum in three schools and serving as Dean of Faculty in one. He is currently adjunct Professor of Christian Education at Knox Theological Seminary in Ft. Lauderdale, Florida, and loves helping teachers, pastors, and homeschooling parents explore what it means to teach Christianly.

Mark has a bachelor’s degree in English with a science minor (Grace College, Winona Lake, Indiana), a master’s degree in secondary school science (Villanova University), and a PhD in religion and society studies, focused on Christian education (Omega Graduate School, Dayton, Tennessee). In 2000 he was invited to be one of two teachers representing the Association of Christian Schools International (ACSI) at the National Teacher Forum in Washington, D.C. More recently, he was selected to participate in the Faith-and-Science-Teaching (FAST) project that created the units at

Mark’s primary academic interests are in Zoology, especially herpetology (the study of amphibians and reptiles), and the intersection of faith and learning, especially in science. He enjoys walking, nature photography, reading novels aloud with Andrea, his wife of 40 years, and spending time with their son’s family.