Staff Directory


Jenny Engel

Jenny Engel, M.S.Ed., BCBA, LBA, Director

Ms. Jenny Engel is excited to return for another inspiring year as Director of The Maddux School. Prior to her arrival, Ms. Engel helped found Ivymount’s Early Childhood Clinic for young children recently diagnosed with Autism Spectrum Disorder, while concurrently serving as Division Director of the Elementary Autism Program. She has been an administrator, supervisor and teacher in the field of special education for over twenty years, working to support children across a wide range of ages and abilities, including those with executive function challenges, learning disorders, ADHD, social anxiety and more.

When Ms. Engel arrived at Ivymount’s Model Asperger’s Program in 2014, she worked collaboratively with the interdisciplinary team there to ensure all students received a welcoming and supportive but challenging environment through which to reach their highest potential.  At the highly-regarded New England Center for Children in Southborough, Massachusetts, Ms. Engel held a variety of positions, including consultant to local public school systems/programs to ensure students received the support they needed to succeed within their home schools.  She particularly enjoys working as part of a team providing all students the opportunity to shine.

Ms. Engel is a Board Certified & Licensed Behavior Analyst.  She earned her Master of Science in Special Education degree from Simmons College and a Bachelor of Arts degree in Psychology and Art from Colby College.


Andrea MullinsAndrea Mullins, M.Ed., Director Emeritus

Ms. Mullins is the founding Director of The Maddux School and has over thirty years of professional experience working with students with learning and reading disabilities, ADHD, social challenges, autism spectrum disorders and a range of mild to moderate special needs of all kinds. Ms. Mullins served as a classroom teacher for seven years before advancing to increasingly-involved administrative roles. She served as Coordinator of Early Childhood Programs at The Ivymount School and Director of the Lower School at The Ivymount School for ten years and consulted to area preschools on building inclusive classrooms. In 2004, she developed a unique MSDE-approved curriculum and founded The Maddux School to fill a niche for students who need specialized instruction but do not necessarily require or qualify for special education.

In her current capacity, Ms. Mullins serves as Director Emeritus, consulting with the new administration’s transition to leadership of The Maddux School.  In the coming year, she will continue supporting the vision for the school’s progression and growth by providing guidance on topics of early childhood education and school leadership and administration.

Ms. Mullins earned a Master of Education in Special Education from Lesley College and a Bachelor of Arts in Psychology from Clark University. She continues to maintain Maryland State Department of Education Advanced Professional Certification in Elementary Education and Middle School and Special Education in Kindergarten through 12th Grade.

Lynn Cannon

Lynn Cannon, M.Ed., Social Learning Coordinator

Ms. Cannon leads The Maddux School’s social learning arm through the development and implementation of a unique curriculum across all classes, Pre-Kindergarten through Second Grade.  As a special educator and administrator, Ms. Cannon has over fifteen years of teaching experience in settings including The Lab School of Washington, The Model Asperger Program at Ivymount School and Take 2, a specialized summer camp for highly verbal and intelligent children with social learning disorders.  Ms. Cannon is a nationally-recognized author with the publication of The Conversation Club, a curriculum designed to teach children how to engage in successful conversation with peers by teaching the “how” and “why” of conversation.  In addition, she is a co-author of Unstuck and On Target!: An Executive Function Curriculum to Improve Flexibility for Children with Autism Spectrum Disorders and Solving Executive Function Challenges: Simple Ways to Get Kids with Autism Unstuck and on Target, curricula designed to promote cognitive flexibility and goal-directed behavior in children.  Ms. Cannon earned a Master of Education degree in Special Education from the University of Virginia and a Bachelor of Arts in Education and Psychology from the College of William and Mary.

Amanda Dennison

Amanda Dennison, M.A.Ed., Curriculum & Instruction Coordinator

Ms. Dennison is excited to continue in her position as Curriculum & Instruction Coordinator for all classes at The Maddux School. She joined Maddux seven years ago with extensive teaching, leadership and curriculum development experience in the United States and abroad.  She is passionate about nurturing students’ cognitive, social-emotional and physical development as part of a whole-child education. 

Ms. Dennison recently earnedCertificate in School Management and Leadership (CSML) from Harvard Graduate School of Education.  She earned a Master of Arts in Education with a double concentration in Literacy and Special Education from Michigan State University, as well as a Bachelor of Arts in Elementary Education with a concentration in Literacy from the University of North Carolina at Chapel Hill.   She is trained in the Orton-Gillingham approach, completed the Summer Institute at Columbia Teachers College, and holds teaching certification in Elementary K-6 and ESOL K-12.

Lisa ShawLisa Shaw, M.S.W., LCSW-C, Administrative Coordinator

Ms. Shaw is responsible for a variety of functions at The Maddux School including parent communication, licensing and compliance, knowledge management, event planning and supporting the functions of the Director.  Ms. Shaw earned a Master of Science in Social Work from Columbia University and a Bachelor of Arts in International Relations from the University of Delaware. She is a Licensed Certified Social Worker – Clinical in the State of Maryland.  Prior to her arrival at The Maddux School in 2011, she served as Director of Treatment Foster Care for a private social service agency in Maryland and provided therapy and case management services as a Social Worker in the District of Columbia child welfare system.



Pre-Kindergarten Class

Billy AstroveWilliam Astrove, B.A., Teacher 

Mr. Astrove is excited to join The Maddux School community as a Pre-Kindergarten teacher with our youngest learners.  With over 12 years of teaching and child care experience, he delights in the curiosity and energy of young children and excels in guiding them in pre-academic lessons, friendship-building and in managing big emotions.  Mr. Astrove earned a Bachelor of Arts in Educational Studies & Sociology from West Virginia Wesleyan College and maintains Level 6 Child Care Certification through the Maryland State Department of Education.

Tamra JohnsonTamra Johnson, M.A., Teacher

Diana SankarDiana Sankar, B.A., Associate Teacher

Ms. Sankar is excited to support the Pre-Kindergarten class as an Associate Teacher following three years instructing students of various ages and learning profiles, including one year as a 1:1 ABA Instructor at They Ivymount School.  Ms. Sankar earned a Bachelor of Arts in Psychology from The George Washington University.

Kindergarten Class

Hannah ShipleyHannah Shipley, B.A., Teacher

Cherelle WatersCherelle Waters, B.A., Teacher

Christina GallagherChristina Gallagher, A.E., Associate Teacher

First Grade Class

Photo SoonRachel Freeman, M.A., Teacher

Alyson Stagnitto

Alyson Stagnitto, M.A., Teacher

Ms. Stagnitto continues to lead the First Grade class at The Maddux School. She holds Standard Professional I certification in Elementary Education 1 – 6 and Generic Special Education Infant to adult.  Ms. Stagnitto earned a Master of Arts in Education from the College of Saint Elizabeth and a Bachelor of Arts in Psychology from the University of Tampa.  She has been teaching for over fifteen years, including eight at The Maddux School and three as Head Teacher in Ivymount School’s multiple learning needs program.  She is certified in the Orton-Gillingham method of teaching reading, writing and spelling and is routinely recognized for her work ethic and exceptional understanding of children’s needs. 


Carla KasunCarla Kasun, B.A., Associate Teacher

Ms. Kasun has over thirty-five years of experience in special education, behavioral intervention, residential counseling and therapeutic recreation with children and adults. As a certified yoga instructor, she has been instrumental in developing the yoga program at The Maddux School, as well as providing direct yoga instruction to young children. Now in her tenth year at The Maddux School, she is excited to serve in the First Grade classroom as an associate teacher, and teaches yoga weekly to pre-kindergarten, kindergarten, first grade & second grade students.  Prior to her employment of over twenty years in The Ivymount Upper and Lower Schools, Ms. Kasun earned a Bachelor of Arts in Psychology from the University of Maryland and further studied biology at St. Mary’s College.

Second Grade Class

Marissa MarekMarissa Marek, M.S., Co-Teacher

The Maddux School welcomes back Ms. Marek and her breadth of experience teaching and inspiring young children with a variety of learning differences.   Prior to her relocation to the metro DC area in 2020, Ms. Marek served classes and individual children for six years in Baltimore, New York, Omaha and other areas throughout the country. She earned a Master of Science in Special Education from McDaniel College and a Bachelor of Arts in Psychology from Creighton University.

Tarrah CrooksTarrah Crooks, B.S., Teacher

Ms. Crooks is excited to return to the Second Grade team with a range of experiences promoting academic success through special education, behavioral intervention, residential counseling and therapeutic recreation with children and adults. Prior to her employment at The Maddux School & Ivymount School, Ms. Crooks served as a paraeducator for Montgomery County Public Schools and an ABA Therapist with the Center for Autism and Related Disorders.  She particularly enjoys creating innovative strategies to support student learning and is excited to share her love of science with her young students.  She earned a Bachelor of Science in Psychology from Towson University.

Bernina WoodsonBernina Woodson, B.S., Associate Teacher

Ms. Woodson is a professional Associate Teacher with over fifteen years of experience working in early-childhood settings, including nine at The Maddux School. This year, Ms. Woodson is eager to teach, motivate and support students in the Second Grade class. She has extensive experience tutoring and coaching vulnerable children and adults and has a particular passion for guiding the development of play and social skills in young children. Ms. Woodson holds a Graduate Certificate in Autism Spectrum Disorders from George Washington University and earned a Bachelor of Science in General Studies with a concentration in special education, education and psychology from Liberty University. 

Related Service Providers

Lisa BoxbaumLisa Boxbaum, M.S., CCC-SLP, Speech Therapist

Gabriella CameronGabriella Cameron, M.S., CCC-SLP, Speech Therapist

Ms. Cameron is a Speech-Language Therapist currently working in the Second Grade class at The Maddux School and in the Multiple Learning Needs/Post High School Programs at Ivymount School. Ms. Cameron earned a Master of Science in Speech-Language Pathology and a Bachelor of Arts in Speech-Language-Hearing Sciences both from Loyola University Maryland. She has worked in school and clinical settings with students of all ages to address expressive and receptive language delays/disorders, articulation and phonological disorders, fluency, pragmatic deficits, ADD/ADHD, learning disabilities, ASD and developmental delays. Ms. Cameron particularly enjoys supporting young children in developing social language, play and self-advocacy skills across academic and social environments.

Brittany DavisBrittany Davis, M.A., CF-SLP, Speech Therapist

Ms. Davis joins The Maddux School and Ivymount School with a variety of clinical, administrative and research experiences supporting children and adults with speech, social communication and literacy disorders. Both in groups and in individual therapy, she has provided treatments addressing expressive, receptive, pragmatic language challenges, motor skills weaknesses, fluency and articulation obstacles, and social skills deficits in schools and clinical settings. Ms. Davis earned a Master of Arts in Speech Language Pathology from George Washington University, a Certificate in Early Intervention from Georgetown University, and a Bachelor of Arts in Hearing and Speech Services from the University of Maryland. 

Amy GreenbergAmy Greenberg, M.S., OT/L, Occupational Therapist

Ms. Greenberg, now in her twelfth year at The Maddux School, leads small and large occupational therapy groups in the First and Second Grade classes. She holds a Master of Science in Occupational Therapy, a Bachelor of Science in Psychology and is licensed by the State of Maryland Board of Occupational Therapy Practice. Ms. Greenberg is trained in implementing the 
Handwriting without Tears and Keyboarding Without Tears programs and has special interest in supporting student playground success through a combination of sensory-motor and social-learning skill development.  Ms. Greenberg earned a Master of Science in Occupational Therapy from Boston University and a Bachelor of Science in Psychology from the University of Maryland.  In 2018, she obtained additional certification in Comprehensive Behavioral Intervention for Tics through the Tourette’s Association of America.

Special Subjects

Julie LangJulie Lang, M.A., Associate Teacher

Ms. Lang is a professional Associate Teacher with over ten years of experience working with young children, including four at The Lab School of Washington and five at Kingsbury Day School. This year, Ms. Lang returns to The Maddux School with great creativity and enthusiasm for teaching reading and writing. She has specialized training in a variety of curricula and testing modalities including Wilson Reading Program, Orton Gillingham Approach to Reading, Multi-sensory Manipulatives in Mathematics and Woodcock Johnson Tests of Achievement.  Ms. Lang holds a Master of Arts in Teaching Special Education:  Learning Disabilities from American University and a Bachelor of Arts in Comparative Literature & Philosophy from Hampshire College.

Carley SturgesCarley Sturges, M.S., Physical Education Teacher

Ms. Sturges attended graduate school at the University of Virginia where she earned her Master’s degree in Adapted Kinesiology. As a certified Health and Physical Education teacher in both Maryland and Virginia, Ms. Sturges started working at The Maddux School & Ivymount School in August of 2018. She enjoys being creative in the gym to help  every student stay engaged, moving and having fun while developing the skills needed to live healthy, physically-active lifestyles.

Ed TamulevichEd Tamulevich, M.A., M.S.L.S., Library & Media Specialist

. Tamulevich currently serves as the Library & Media Specialist at The Maddux and Ivymount Schools, providing library and media education along with management of a very diverse 24,000 item library collection. He holds a Master of Science in Library Sciences and a Master of Arts from Catholic and Georgetown Universities, along with a Special Education Certification earned at George Washington University. He has current teaching certificates in Special Education (K-12), Library Media Specialist (K-12), Secondary Social Studies and English in the State of Maryland and has over forty years of experience in special education, librarianship, various academic disciplines and theater.