Lehnen, Charles, Jessica Stellmann, Andrea Morfin Valencia, and Dr. Dieuwertje Kast. 2026. “Zooming into STEM: Designing Curriculum Around Guest Presentations in an Online After-School STEM Program for Title I Elementary Students”. Innovations in Science Teacher Education 11 (3). https://innovations.theaste.org/index.php/iste/article/view/454.