Lindley Middle School

Dr. Dana Giles, Principal

Sabrina Richardson, AP | Glenn Richard, AP | Sara Johnson, AP | Dr. Bethany Harrison, Administrator| Dr. Michaela D'Aquanni, SSA

50 Veterans Memorial Highway
Mableton, GA 30126
Phone: 770-819-2496
Fax: 770-819-2498

Lindley Administration


Dr. Dana C. Giles earned a Bachelor’s of Science degree from Columbia College with a major in Biology and minor in Chemistry. Upon graduating from Columbia College she moved to Marietta Georgia and obtained additional degrees which includes a Masters in Science Education from Georgia State University and Masters in Educational Leadership from Kennesaw State University, and a Specialist in Curriculum and Instruction and a Doctorate in Curriculum Leadership from Argosy University. Dr. Giles taught Biology, Honors Biology, Chemistry, Physics, Honors Physics, Meteorology, Geology, Astronomy, and Earth Science at McEachern High School. She later became the Assistant Principal of Curriculum and Instruction at South Cobb High school where her strength was leading through innovative practices, 21st century learning, streamlining student scheduling, leading the Magnet Schools of Science and Biomedical Research, and increasing the graduation rate. Under her leadership, her school gained the highest graduation rate by double digits in four years through the employment and creation of innovative scheduling modules. She later became the Assistant Principal at Floyd Middle School, and Assistant Principal of STEM and Assessment at Dodgen Middle School, the third highest academically performing school in the state of Georgia. She is excited to be the lead learner and Principal at Lindley Middle School in Mableton, GA, where she seeks to raise achievement with a focus on student engagement, differentiation, and a strong literacy focus in all content areas. She has been lovingly married for 21 years to Mr. Donell Giles and has three children Morgan a Sophomore at Valdosta State University, Joshua  a Junior in high school and Carrington Giles a 7th grader in middle school.



Sabrina Richardson
Assistant Principal

Ms. Sabrina Richardson was raised and educated in the Savannah -Chatham County Public School system which laid the foundation for her firm commitment to education. She earned a Bachelor of Science degree from Savannah State University in Criminal Justice and then completed the Teacher Certification Program at Armstrong Atlantic State University. Soon after beginning her career as an educator, Ms. Richardson was recognized by Who’s Who Among Educators and nominated for the Disney’s Outstanding Teacher Award. Next, she was accepted into the National Institute of Teaching Excellence, where she earned her Masters of Education degree from Cambridge College, in Boston, Massachusetts. Additionally, she earned an Educational Leadership certificate from West Georgia University.

After working as a teacher and Writing Lab Coordinator in the Savannah-Chatham County School District for 8 years, Ms. Richardson moved to the Atlanta area in 2004 where her roles as an educator evolved from Teacher-Leader, to Academic Coach and lastly to an Assistant Administrator in the Fulton County School System. During the 2010 – 2011 school year she served as the Director of Programs for a non-profit organization where she was responsible for developing and overseeing the educational programs for middle and high school students. In 2011, Ms. Richardson joined the Lindley family and served as the Gifted Language Arts Instructor. Currently, she is serving as the Assistant Principal and brings over 15 years of experience in education and a wide array of skills and valuable knowledge to the Administrative Team.


Glenn J. Richard Jr
Assistant Principal

Mr. Glenn J. Richard Jr. is a Native of New Orleans, La. His career as an educator began in New Orleans, La in 2001 with Orleans Parish Schools. Having lived in Atlanta, Georgia since September 2002, he has worked for Butts and Fulton County Schools as a Science teacher and Graduation Coach. Mr. Richard was afforded the opportunity to work with Cobb County Schools in August 2011 as a Science teacher and became an Assistant Principal of Lindley Middle School in the summer of 2014.

In addition to the knowledge he brings to the county as an Educator, Mr. Richard brings a wealth of knowledge he has gained from the U. S. Army and from his many years of experience in Corporate America. He served in the U. S. Army for six years as a Logistics Specialist, and as a Manager in the Hospitality Industry for seven years. He has served as the Director of External Relations for the Non-Profit Organization, Synergistic Youth Enterprises (SYE). There he was charged with everything from public relations to marketing to community advocacy to fundraising and lobbying. With his strong communication, leadership and diplomacy skills, he was the link to the constituents of SYE.

Mr. Richard has earned a Bachelor’s of Science Degree in Science Education from Southern University at New Orleans, a Master’s of Science Degree in Management and Administration of Educational Programs and Curriculum and Instruction, and an Educational Specialist Degree in Management and Administration of Educational Programs from Nova Southeastern University. He is dedicated to his craft and is looking forward to working with the students, staff and community of Lindley Middle School.


Dr. Bethany Harrison Administrator


Dr. Bethany Harrison hails from Athens, GA. She comes from a family of educators, with her grandmother serving as a teacher and her mother retiring as an elementary school principal. After graduating with her Bachelor’s degree from Auburn University, Dr. Harrison began her teaching career in DeKalb County as an elementary teacher. She then chose to attend graduate school full-time, working on her Master’s degree in Enrollment Management/Higher Education Administration at the University of Miami and on her doctorate degree in Elementary Education back at her alma mater, Auburn University. Dr. Harrison is an educator with experience on various levels. In addition to teaching all content areas as an elementary teacher, she has also taught middle school Social Studies and taught Early Childhood and Middle Grades as an Assistant Professor.

Dr. Harrison’s most recent work in the Cobb County School District has involved instructional leadership in Social Studies content at Floyd Middle School. She has also served as Floyd’s PBIS local coach, successfully leading a collaborative team in achieving Operational level status and in meeting the district goal of significantly decreasing referrals. Dr. Harrison believes that the foundation of an effective year is recognizing the need for building strong relationships among students and all educational constituents. In her spare time, she enjoys being involved in her community and spending quality time with her husband and son.


Dr. Michaela D'Aquanni

Student Support Administrator


Dr. Michaela D’Aquanni entered the field of education in 1985 as a special education teacher.  During her tenure as a teacher, she spearheaded inclusive education programs for children with different learning needs. Over the last 33 years she has taught in diverse general and special education settings, been an administrator at the high school level, a state wide consultant for systems change across New York State and Georgia, a university professor and an educational resource - working with teams (students, parents, and educators) to facilitate the development of effective educational programs for all students.  Her areas of interest are in curriculum development and working to meet the needs of every student, particularly around issues of diversity, effective teaching practices and reading and language development.  She is also keenly aware of the connection between teacher dispositions and the acceptance of diverse students within our schools, and the partnerships required to form effective learning communities. Her philosophy about educating students with disabilities is woven from what she sees as the critical elements of every program: acceptance, relationships, teamwork, respecting each as an individual, and acknowledging that each of us has gifts.  Her career in the field of education continues to broaden, especially after spending a year in India where she assisted in the development and opening of an international school for children who brought with them a host of new challenges. Upon returning from India, Dr. D’Aquanni decided to take a leave from Kennesaw State University and return to the Public School setting in Cobb County as a general education teacher, with her goal being to make the door of inclusion more accessible to students who speak English as a second language and students with disabilities.  In 2009, she was honored to be recognized as Cobb County’s Elementary Teacher of the Year. 

Dr. D’Aquanni earned her bachelor’s degree in Psychology and Master’s degree in education from the State University of New York at New Paltz.  She earned her Doctor of Philosophy in Special Education and her leadership degree from Syracuse University.  She is delighted to have joined the Schools of Lindley where she partners with students, families, colleagues and the community to support “One Team, One Goal, Lindley Success”




Sara Johnson

Assistant Principal

Mrs. Sara Johnson is a proud native Texan.  She completed her early education in Amarillo, Texas and later moved to Atlanta where she graduated from D.M. Therrell High School in the Atlanta Public School System. She attended Spelman College and completed her Bachelor’s Degree in Psychology. After graduation, she returned to Texas and completed the Region IX teacher certification program.  Mrs. Johnson began her teaching career in the Hurst-Euless-Bedford Independent School District in Hurst, Texas where she taught general and special education for several years.  Later, she taught in Keller, Texas before moving to Michigan.

While living in Michigan, she completed her Master’s degree in Educational Leadership from Saginaw Valley State University.  During her tenure working for the Saginaw Township Community School District, she trained teachers and piloted the district’s newly developed “Multiple Intelligence” program. Additionally, she served as the coach of the state recognized NOBCChe Science and Math academic team. She founded the school’s “Clothes Closet” for underprivileged students and the “Dream Keeper’s” mentoring program for at-risk young men.  She was recognized by the Michigan Association of Middle School Educators’ “Teacher of the Year” in 2009 and won the community 2010 R.U.B.Y.  (Recognizing the Upward Bright and Talented) award for her work within the schools and community.  In 2011, she was selected as one of only two teachers statewide to become an SVSU Gerstacker Fellow.  During her educational studies with the fellowship, she was privileged to travel to Asia and meet with other educational leaders from China and Taiwan to discuss global educational curriculum.

Mrs. Johnson’s family relocated to Marietta, Georgia in 2012, and she began her Cobb County School District career at Lindley Middle school.  She has proudly served the school as an English language arts teacher, ELA department coordinator, and instructional academic coach. Currently, she serves as the school’s leadership intern administrator.