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Great Teachers Inspire

Our tutors and staff in Diamond Bar consist of passionate educators who love inspiring children to succeed. Warm, caring and great at relating to kids, our tutors in Diamond Bar know how to engage and motivate each child in a personal way—building confidence and smiles, as well as skills and better scores. We selectively choose tutors who know local curriculum and can link Sylvan lessons to what’s being taught in school.

Get to know our tutors and staff in Diamond Bar!


Fran Dyer

Franchise Owner

Fran Dyer, owner of Sylvan Learning Center, has loved working in the Centers for the past 25 years. It has been a fabulously rewarding career meeting with parents, classroom teachers, and or course, the students. While Fran’s career in Public Education encompasses teaching students at the Junior High level, Sylvan has provided her the opportunity to work with students from Kindergarten through High School. Sylvan has an excellent program and provided success for students at every level. Fran has both a Bachelors of Arts and a Masters Degree.


Jim Dyer

Franchise Owner

Jim Dyer, owner of 9 Sylvan Learning Centers, spent 30 years in California Public Education. He taught high school for 8 years and was a Junior High Principal for 24 years. Jim has also taught Junior College classes in Speech and worked with Chapman University in the teacher credentialing department for the Inland Empire. In 2001 Jim began working extensively with the Sylvan Learning Centers. The best part of Sylvan for Jim is the same as it was working in Public Education….working with students and parents! Jim earned both his Bachelor of Arts and his Masters Degrees from Whittier College, Whittier, California.


Carli Ganet

Executive Director - Franchise Owner

Carli Ganet is the Executive Director and Co-Owner of the 11 Sylvan Learning Centers owned by Jim and Fran Dyer. Carli received her Bachelors of Arts and Teaching Credential at the University of Denver in Denver, Colorado. Carli began her career with Sylvan as a student in the Rancho Cucamonga Sylvan Learning Center. She has been a Director of Education, Center Director and currently oversees the educational programs of Sylvan students as well as working with Directors and Parents. She loves working with Sylvan families!


Lisa White

Director of Business Development

Lisa White has worked for Sylvan Learning for close to 10 years as Director of Business Development. Prior, Lisa spent 19 years in the non profit/social services arena managing programs and services for high risk, disabled, and culturally diverse populations. Lisa earned a Bachelors Degree in Psychology from Antioch University and a Master’s Degree in Psychology from Pacific Southern University. Lisa has always been actively involved in her children’s school; serving as an E3 Foundation Board Member, PTA Board Member, and School Site Council Member at the Etiwanda School District. Lisa enjoys representing Sylvan throughout the community and actively engaging in networking events and business development groups. She feels that her career experience and passion for education helps to ensure that all students are afforded educational opportunities that foster growth and development. “ I am passionate about academic excellence and enjoy working in a vibrant student learning environment where students are supported and celebrated.”


Taryn Hartman

Director of Media Marketing

Taryn is a graduate of California State Polytechnic University, Pomona.  She received her Bachelor of Science degree in Business Administration with an emphasis in Management and Human Resources.  As a former Center Director and Regional Director, Taryn comes to this position with a love for Sylvan Learning Centers.
Taryn is a mother to 4 handsome boys.  When not working you will find Taryn at the soccer fields or at the grocery store.

Mackenzie Hall


Mackenzie graduated from the University of California, Riverside with a Bachelors’s degree in Applied Mathematics.  He is currently a tutor for the Chino, Claremont, and Diamond Bar Sylvan Learning Centers.  Tutoring has always been something that Mackenzie has wanted to do and he is excited to be able to help our Sylvan students succeed in Math.  During his spare time, you will find Mackenzie at home watching and reading information about sports and the weather.

yvonne tam

Yvonne Tam


Yvonne earned her bachelor of science in Anthropology from the University of La Verne. She first started as a teacher at Sylvan in 2014 helping students with math, reading, writing, test prep, and homework support. Then in 2021, she started working at Sylvan of Diamond Bar. Previous to Sylvan, Yvonne was a Youth Education Leader with the Boys & Girls Club of San Bernardino. She worked with students in the San Bernardino City Unified School District providing afterschool care and enrichment. Yvonne has 10 years of experience tutoring elementary school-aged children and enjoys experiencing the joy of seeing students have fun while learning. She loves working at Sylvan Learning of Diamond Bar and supporting the students, parents, and teachers, and seeing the students’ love for learning grow. In her free time, Yvonne enjoys reading, camping, and most of all spending time with her family and friends.

ryan w

Ryan Whittington


Ryan Whittington is a tutor at the Sylvan of Diamond Bar and a teacher in the surrounding school districts. He is a graduate of the University of La Verne and obtained a bachelor of arts in diversified education and a master’s degree in education. Previous to his time at Sylvan, he has been an elementary school teacher in La Cañada Flintridge and Glendora. He enjoys tutoring a variety of subject areas, including reading, writing, math, and homework support. In his free time, Ryan is interested in reading, watching movies, hiking, and photography.

Heidi Lange

Heidi Lange


Heidi Lange has worked at Sylvan of Diamond Bar since September 2022. They are a graduate of UCLA, where they obtained a degree in Psychobiology. Previous to Sylvan Learning Center of Diamond Bar, Heidi worked as a Teaching Assistant in the sister location of Riverside. They have 3 years of tutoring experience working as an instructor for Sylvan Learning. They enjoy teaching a variety of subject areas, including math, reading, and test prep. In their free time, Heidi enjoys art and music.

Start your child on the path to academic success today

Give us a call at (909) 895-0158 or fill out the form to discuss your child’s learning goals.


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Call us today: (888) 338-2283

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502 Washington Avenue
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Towson, MD 21204

(888) 338-2283