Staff Directory


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

Ms. Engel is excited to lead another inspiring year as Director of The Maddux School. Prior to her arrival at The Maddux School, 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

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 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, 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, M.Ed., Curriculum & Instruction Coordinator

Ms. Dennison is excited to continue in her position as Curriculum & Learning 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 earned a Certificate 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 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

William Astrove, B.A., Teacher

Mr. Astrove is a dedicated Pre-Kindergarten teacher with our youngest learners.  With over 12 years of teaching and child care experience, he enjoys fostering 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 Johnson, M.A., Teacher

Ms. Johnson joins The Maddux School as a Teacher in the Pre-Kindergarten class following eight years leading classrooms with a variety of learners in the District of Columbia. As an early learning educator and teacher mentor, she mastered planning and executing rich and engaging lessons to both small and large groups with as many as 24 children in the classroom. Ms. Johnson earned a Master of Education in Educational Leadership from Concordia University and a Bachelor of Science in Psychology from Howard University.

Diana 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 Shipley, B.A., Teacher

Ms. Shipley is excited to co-lead the Kindergarten team at The Maddux School following nearly three years of teaching very young children prior to and throughout the pandemic.  With experience in various teaching approaches and valuing strong interpersonal relationships, she is eager to implement the unique curriculum of The Maddux School with its focus on academics and social learning.  Ms. Shipley earned a Bachelor of Arts in Multidisciplinary Studies from West Virginia University.

Cherelle Waters, B.A., Teacher

Ms. Waters joins The Maddux School Kindergarten class with over 10 years of experience teaching, supervising, guiding and supporting the development of young children in the fast-paced environment of Capitol Hill.  As a result, she is a highly motivated leader and prides herself on her dependability and sense of responsibility in fostering the academic, emotional and social growth of her students..  Ms. Waters earned a Bachelor of Science in Child & Adolescent Studies from Bowie State University and a certificate in Mental Health from the University of Minnesota.

Christina Gallagher, A.E., Associate Teacher

Ms. Gallagher is a valued member of the Kindergarten team, supporting the co-teachers in planning, implementing and assessing lessons with our young learners.  Experienced in providing childcare as well as teaching young children pre-academic skills for reading, writing, math & science, Ms. Gallagher demonstrates creativity, patience and commitment to early childhood learning.  She holds an Associate degree in Education from Camden County College and has nearly completed the requirements for a Bachelor of Arts in Literature and a minor in Women’s Studies from Richard Stockton College in New Jersey.

First Grade Class

Rachel Freeman, M.A., Teacher

Coming Soon!





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.

Ms. Stagnitto 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 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 serves 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 Marek, M.S., Teacher

Ms. Marek is delighted to return to the Second Grade class this year with breadth of experience teaching and inspiring young children with a variety of learning differences.

Prior to her relocation to the metro DC area, 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 Crooks, B.S., Teacher

Ms. Crooks returns to the Second Grade team along with added responsibilities of teaching STEAM and art throughout all of the Maddux School classes.  

With a range of experiences promoting academic success through special education, behavioral intervention, residential counseling and therapeutic recreation with children and adults, she particularly enjoys creating innovative strategies to support student learning and is excited to share her love of science with her young students. 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 earned a Bachelor of Science in Psychology from Towson University.

Bernina 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 Boxbaum, M.S., CCC-SLP, Speech Therapist

Lisa Boxbaum serves as Speech Therapist in the Pre-Kindergarten and Kindergarten classes. She comes with a wide range of experiences providing individual and group speech-language treatment for children with neurodevelopmental delays, pragmatic difficulties, voice disorders, and clinical assessment and intervention for oral-motor and sensory challenges related to feeding and swallowing. Ms. Boxbaum is a Licensed Speech-Language Pathologist in both Maryland and New York.  She earned a Master of Science in Communicative Sciences and Disorders from New York University and a Bachelor of Arts in Speech and Hearing Science with a Concentration in Speech-Language Pathology and a minor in Judaic Studies from The George Washington University.

Gabriella 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 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. 

Jessica Golding, MS, OTR/L, Occupational Therapist

Ms. Golding is an Occupational Therapist currently working in the Pre-Kindergarten class at The Maddux School and in the Multiple Learning Needs Program at Ivymount School. Ms. Golding earned a Master of Science in Occupational Therapy from Towson University and a Bachelor of Science in Biological Sciences and a Bachelor of Science in Psychology from University of Maryland College Park. She has a variety of experience supporting children and adults with challenges in gross and fine motor, visual motor, sensory processing, self-regulation, executive functioning, and daily living skills. 

Amy 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.

Kirsten Suhr, M.S., OTR/L, Occupational Therapist

Ms. Suhr is an occupational therapist currently working with the kindergarten class at The Maddux School. She has also worked with students from 2nd through 12th grade in Ivymount School’s Model Asperger Program (MAP) for more than 3 years. Ms. Suhr earned her Bachelor of Arts degree in Art History from Cornell University. After working for non-profit advocacy organizations for many years, she went back to school to earn her Master of Science degree in Occupational Therapy from Springfield College in Massachusetts. Ms. Suhr has experience teaching “Unstuck and On Target” curricula and she is passionate about helping students develop self-regulation strategies, executive function skills, and gross and fine-motor skills.

Special Subjects

Dan Brown, M.Ed., Physical Education Teacher

Mr. Brown joined The Maddux School and Ivymount School in 2021 with a focus on optimizing success and athletic abilities for students at all levels. Utilizing teaching strategies for students with and without disabilities, he differentiates instruction for even the youngest Maddux learners. Mr. Brown earned a Master of Education in Kinesiology for Individuals with Disabilities from the University of Virginia and a Bachelor of Science in Physical Education and Health from Old Dominion University. He is certified as a Health & Physical Education Teacher (PK-12) in both Maryland and Virginia.

Julie 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 joins The Maddux School First Grade class 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.

Nick Pinto, B.S., Physical Education Teacher

Mr. Pinto is a graduate from Seton Hill University where he earned a Bachelor of Science degree with a focus on exercise science and psychology. As a certified Physical Education teacher in Maryland, Mr. Pinto joins both The Maddux School and Ivymount School teaching students of all ages. He enjoys creating fun and interactive material for classes to help every student stay engaged, moving, and having fun, as well as highlighting the importance of maintaining a healthy lifestyle.

Carley 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 Tamulevich, M.A., M.S.L.S., Library & Media Specialist

Mr. 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.