School Leadership 

Bill Spirer, Founder & Head of School

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Bill is an educator, attorney, and Teach For America alum who has worked in a variety of roles in urban education and family advocacy.  Bill taught high school history, government, and economics, and led his Global History students to achieve a 79% pass rate on the Regents exam, nearly 50 percentage points higher than the pass rate for similar city schools.  In 2012-2013, he completed the Building Excellent Schools Fellowship, a yearlong training program on school design and leadership.  In addition to his work as a teacher, Bill has served as a Department Chair, Grade Team Leader, and TFA Content Specialist, and most recently was the Dean of Students at Troy Prep Elementary School, which is a member of the Uncommon Schools network.  He earned a BA at Bates College, an MST in Education at Pace University, and a JD at Brooklyn Law School, where he was the Editor-in-Chief of the Journal of Law and Policy.


Meghan Wagner, Director of Finance & Operations

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Meghan Wagner is the Director of Finance & Operations.  Ms. Wagner has over 10 years of experience in finance and operational management.  She has spent the past 6 years working in education at Achievement First – Hartford Elementary, a high performing charter school in Hartford, Connecticut that is part of the Achievement First Network.  Meghan joined Springfield Prep Charter School in July 2016.  

From 2010 through 2016, Ms. Wagner supported the growth and expansion of Achievement First – Hartford Elementary as it grew from under 180 students to almost 500 students.  During this time, she supported the relocation of the school from a temporary location to a larger permanent location, including support of the facility budget, design, timeline and logistics.  While at Achievement First, the operations teams led by Ms. Wagner consistently outperformed network targets, ensuring enrollment targets, budget objectives and facilities benchmarks were met or exceeded.  Ms. Wagner specializes in the development of efficient operational systems, data management and the growth and development of operations staff members.

Meghan earned a BA from Westfield State College and obtained her MPA from the University of Connecticut School of Public Policy  with additional graduate certificates in both Financial Management and Nonprofit Management.  


Wendy Soref, Director of Curriculum and Instruction

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Wendy Soref, Ed.M., NBCT, is the Founding Director of Curriculum and Instruction at Springfield Prep.  She has ten years of experience as an early childhood educator and teacher leader.  She began her teaching career with Teach for America in Hughes, AR and has since taught in Boston with Brooke Charter Schools and in Springfield Public Schools.  She obtained her Ed.M. in Language and Literacy and her reading specialist certification at Harvard Graduate School of Education.  In 2010, Wendy was selected as a TeachPlus policy fellow, which gave her a more in-depth understanding of education policy and a platform to advocate for policies that would most benefit students.  At Brooke, she was the first teacher in the charter network to achieve master teacher status on the basis of three consecutive years of outstanding student growth and evidence of teacher leadership.  She also piloted a hybrid role as a teacher/administrator, teaching first grade part-time and leading the kindergarten and first grade teams by coaching and evaluating teachers, leading professional development, and facilitating weekly data meetings.  She has worked as a video reviewer for The New Teacher Project, providing feedback to novice teachers using an online platform and as an adjunct instructor through Boston University’s partnership with Teach for America, teaching a course on best practices in Sheltered English Immersion (SEI) to new elementary school teachers. 


Jessica Yiannos, Associate Director of Curriculum and Instruction

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Jessica Yiannos is the Associate Director of Curriculum and Instruction at Springfield Prep. Jessica began her career in education 6 years ago as a Teach for America corps member in Detroit, Michigan. After 3 years of teaching early elementary grades, Jessica returned to her home state of Massachusetts to work at the Achievement Network, a national non-profit. From there, Jessica was a founding lead math teacher at Achievement First's Greenfield model in New Haven, CT. In 2016, Jessica joined the Springfield Prep team as a 2nd grade teacher. In the 2016-2017 school year, Jessica led 65% of her students to score in the top quintile in math according to MAP assessments, and 92% of her students to score above the 50th percentile. In reading, her students scored 15 percentage points higher than the national network on the ANet assessment. 

Jessica earned her BA from Connecticut College in 2010, and obtained her teaching certification at the University of Michigan in 2013.