When Jeni Mosca became principal of Seabrook Elementary School in Seabrook, it was one of the lowest achieving schools in the state. Since then, she has worked with teachers to raise the quality of instruction and improve student achievement, leading the school to achieve adequate yearly progress (AYP) in 2004 and helping 70 percent of students score "proficient" or "proficient with distinction" on the 2005 New England Common Assessment Program (NECAP). Ms. Mosca reformed the school by implementing strategies such as research-based programs, differentiated instruction and everyday math. She also worked with parents and the community to improve school safety and developed a phone tree system to contact parents in the event of an emergency. Ms. Mosca has played an instrumental role in providing effective professional development for administrators throughout the district. She has chaired several district committees and served on many others. What she has achieved at Seabrook demonstrates the profoundly positive impact that one outstanding educator can have on an entire community.