Seanyelle Yagi, PhD, has been a mathematics educator for more than twenty years, as an elementary and middle school teacher, a mathematics coach, and a complex area and state level resource teacher. She is currently a curriculum developer and teacher/researcher. She continues to learn from teaching students early algebraic concepts through the escapades of Lani and Rabbert. In her free time Seanyelle enjoys going on adventures around O'ahu with her husband and son.