Phone: (610) 308-6536

About New

It’s about the coaches.

It’s about the experience.

It’s about the expertise.

That’s who TLS is.


TLS is comprised of educators, facilitators, and coaches who live and work in Southeastern Pennsylvania. They have brought their expertise to schools in Berks, Bucks, Chester, Delaware, Montgomery, and Philadelphia counties.  TLS brings more than 35 years of experience helping teachers deliver quality teaching that promotes student learning.

Select each person’s name below to learn more about Team TLS

Select each person’s name below to learn more about Team TLS:

Dr. Peter Grande – Executive Director

Beth Ann Olesen – TLS Director of Learning

Becky Duffy – Professional Learning Facilitator

Dr. Marcy Hessinger – TLS Curriculum Supervisor

Dianne Krause – Professional Learning Facilitator, Website

Erin McAnallen – Professional Learning Facilitator

Krista Leh – Professional Learning Facilitator

Scott Heydt – Professional Learning Facilitator

Trish McGarry – Professional Learning Facilitator

Gail Katch – Professional Learning Facilitator

Mary Pat Long – Professional Learning Facilitator

Julie Kline – Professional Learning Facilitator









Peter Grande
Executive Director

Dr. Peter Grande is a teacher of teachers. Since 1979, Pete has devoted his life to helping teachers and administrators maximize their effectiveness. A personal, engaged approach characterizes Pete’s work. In his curriculum, instruction, and professional development roles, Pete recognized, developed, and reinforced difference makers.

He has held a variety of leadership capacities in educational institutions in Pennsylvania. His career of over four decades includes service as a teacher, university professor, director of professional learning, and director of curriculum, instruction, and professional development.