He has taught several courses in both the undergraduate and the graduate early childhood programs, including early childhood math and sciences methods courses and primary curriculum Dr. Jung received his doctorate in curriculum and instruction, specializing in early childhood education at Indiana University in 2006. He developed his expertise in designing professional development materials for pre- and in-service teachers by working for special projects at Indiana University, including Indiana University-NAEP project, in which he and his team members published a set of multimedia (manual-plus-CD-ROM) teacher education materials.