Our Staff

Angela Perry

Executive Director

Angela Perry is the founder and executive director of 4th-Dimension Leaders, an organization dedicated to disrupting discrepancies in opportunity. Angela began her career in education as a middle school math teacher. After teaching and serving in school- and systems-level leadership roles, she worked in the non-profit education sector, cultivating partnerships, managing development efforts in new markets and leading program design. A member of Aspen’s Pahara network, Angela has more than 20 years of teaching and leadership experience, is a widely recognized adult learning facilitator, panel moderator, and entrepreneurial program designer through her founding work at ENCORE Facilitation Partners.


Lisa Hastings-Sheppard

Director of Programs

Lisa Hastings-Sheppard is Director of Programs at 4th-Dimension Leaders. Lisa spent 22 years at Delaware Technical Community College as an instructor, executive communications manager, assistant vice president of marketing, and senior programs director. She holds a Bachelor of Arts in English and a Master of Instruction, both from the University of Delaware. Lisa served on the Commission for Early Education and the Economy during the Markell administration and currently is a member of the Board of Directors at Wilmington Montessori School.

Syeda Mahnoor Ali

Program Operations Manager

Syeda is the Program Operations Manager at 4th Dimension Leaders. She is graduate with honors in Applied Science-Accounting from Delaware Technical Community College. She came to the USA in 2017 and started her career by working as a front desk assistant at DelTech. She now manages program operations for EPP, LFD and BUILD with the director of 4th-Dimension Leaders. Syeda is also helping us grow our social media platforms.

Rachel Valentin

Lead for Delaware Facilitator & Executive Director, Charter School of New Castle

Rachel Valentin is currently the Principal & Instructional Leader of Charter School of New Castle Elementary Campus serving grades K – 4 (425+) students. Rachel has been instrumental in leading collective change and transforming the culture of the Charter School of New Castle during a difficult leadership transition in 2014-15.  During her tenure, the school experienced a major turn-around that resulted in improved student and parent experience, consistent routines & systems; positive staff culture and academic programming.  

 Rachel relocated to Delaware to participate with the Delaware Leadership Project a Principal Fellowship developed by Innovative Schools. Rachel has served as an adjunct professor with Relay Graduate School of Education Delaware and now with 4th Dimension Learning.  Prior to relocating, Rachel was a Teacher with Uncommon Schools in Brooklyn, NY. She has also served as Math Curriculum Planner and Instructional Coach.

 Rachel has earned a M.Ed. in Education from Hunter College in New York. In addition, Rachel has earned an M.A. in Political Science with a central focus on Urban Affairs/Policy & Public Administration) Brooklyn College in Brooklyn, NY. Rachel has also earned a B.A. in History with a minor in Writing from Spelman College in Atlanta, GA.

 Rachel’s professional experience began at JPMorgan Chase. While there she was responsible for the strategic development and launch of new products for high profile clients, and strategic management of traditional credit and banking products. She is a professionally trained Project Specialist, Data Specialist and Relationship Manager.

 Leader Message:  At the Charter School of New Castle, I am committed to ensuring that students receive both the academic and personal skills needed to be college and career ready. We provide teachers with consistent coaching, best practices, high leverage targeted feedback, and data analysis to improve student academic results. My vision is that all students can and will graduate from high school and college with the tools to be successful in life. It is our responsibility to set no limits to student learning because this work matters and our students matter.  All students, all students will, we will get them there! 


Nakia Fambro

Lead for Delaware Facilitator & Principal, Christina Adult Education

Nakia is currently the principal/administrator of the Christina Adult Education & Literacy program and serves as an adjunct faculty for 4th-Dimension Leaders’ Lead for Delaware program. Nakia Fambro has been an educator for over fourteen years previously serving as an assistant principal at Middletown High School for two years and at Glasgow High School for five years. Nakia demonstrates a strong commitment to academic excellence by guaranteeing that all students are provided with the curriculum, instruction, assessment and support they need in order to meet rigorous achievement standards. In addition, she enjoys working collaboratively with colleagues to maximize learning opportunities for all students and families while relying on her grit, charisma, core values, and the eagerness to improve each day. Nakia earned her Bachelor’s Degree in biology education from Delaware State University and a Master’s Degree in Applied Technology in Education from Wilmington University. She also completed a Certificate in School Leadership from the Delaware Leadership Project. Nakia enjoys spending time with her eight-year-old daughter Brielle who is in third grade. She loves eating at different restaurants, traveling, spending time with friends, and everything beach

Beth Twardus

Equity Practitioner Program Project Coach

Beth Twardus is currently a teacher in the Christina School District. Previously, she served in the Colonial School District in a variety of roles including teacher, math department chair, team leader, clinical educator, union representative, and mentor. She was awarded Colonial Teacher of the Year for AY23.  Beth has a bachelor’s degree in education from Elizabethtown College, a master’s degree in education from Wilmington University, and a master’s degree in instructional leadership from Grand Canyon University. She is an alumnus of the Equity Practitioner Program and now serves as the Direct Action Project coach. Beth believes that every stakeholder has a duty to speak up and listen in a collaborative manner on a continuous basis for the success of education and the future of the students.

TeRay Ross

Equity Practitioner Program Project Facilitator

TeRay Ross is currently the principal at New Castle Elementary School where she has been serving a community of more than 400 students and their families for the past several years. She has previously served as an assistant principal, the district accountability and assessment coordinator, a data coach for the State of Delaware, and a middle school special education teacher. Originally from Baltimore, Maryland, TeRay earned her Bachelor of Science in Special Education from North Carolina Agricultural and Technical State University, and her Master of Science in School Leadership from Wilmington University.  TeRay is an alumnus of the Equity Practitioner Program and is excited to serve as a facilitator. She is hopeful about the opportunities that she will be able to provide for her staff, students, and larger stakeholder communities in the future.

Joe Ross

Equity Practitioner Program Project Facilitator

Joe Ross is currently a teacher in the Red Clay School District. He started his educational career with Teach For America as a 2014 corps member in the Oklahoma City Region at Frederick Douglass High School. Joe moved to Delaware in 2016 to teach social studies at MOT Charter High School and later at Great Oaks Wilmington Charter High School. He received his bachelor’s degree in philosophy from Oklahoma State University, a master’s degree in theology and history at Abilene Christian University, and a master’s degree in educational leadership from Wilmington University. Joe is an alumnus of the Equity Practitioner Program and committed to the ongoing disruption of systemic inequity.