Chadwick began teaching for BYU’s Jerusalem Center programs in 1982, and has taught and researched in Israel annually since then.
He has taught in 20 BYU Jerusalem Center student programs, specializing in archaeology and historical geography of the ancient near east, and conducting travel and field study all over Israel, Egypt, Jordan, and Turkey.
During the 1990s he was a senior supervisor with the Tel Miqne/Ekron Archaeological Expedition (directors Seymour Gitin and Trude Dothan) in Israel.
He joined the Tell es-Safi/Gath Archaeological Project in Israel (director Aren Maeir) in 2001, and has excavated at the ancient Philistine capital each year since then.
Chadwick is also the author of a popular ebook entitled Stone Manger: The Untold Story of the First Christmas.