Math Coach
Sabrina McManus
Math Coach and Department Lead
I am originally from Massachusetts. I also spent time growing up in Florida and North Carolina. I studied Psychology, Math, and Education, receiving both my Bachelors and Masters from the University of North Carolina at Chapel Hill (go Tar Heels!). I am excited to be a Phoenix and support the DHMS math department. I love making connections and building positive relationships with students. I love making learning fun, hands on, and differentiated to meet and challenge all students. I have been teaching in the northern Virginia area since 2018, with experiences in both middle and elementary schools. Prior to moving to Virginia, I spent time teaching in Beijing, China; Chapel Hill, North Carolina; and Hamburg, Germany. In my free time, I like to play soccer and volleyball, travel, paint, and read mysteries.
6th Grade Math Teachers
Daviel Cruz
Teacher, Math 6 and Pre-Algebra
I have been teaching mathematics for more than 22 years, from elementary to high school levels. I like to: play chess, computer gaming (DOTA 2), to run, lift weights, swimming, ride my bike, play with my dog (Willow) and spend time with my family.
Bill Donovan
Teacher, Math 6 and Math Strategies
Originally from New Jersey, I have lived in Arlington for over 30 years. I have been teaching in Arlington Public Schools since 2001 as an Elementary School teacher and a Middle School teacher. In my free time I like to travel with my family or just relax with our two cats and watch movies.
7th Grade Math Teachers
Todd Eiholzer
Teacher, Math 7 and Algebra I Intensified
I am from Maryland. I have taught in Maryland and overseas. I like playing sports and watching movies.
Megan Smith
Teacher, Math 7, Pre-Algebra, and Math Strategies
I grew up in New England. I have 2 teenage children and 2 cats. I like to be outside camping, gardening, hiking, walking, anything outside! I read a variety of books; one of my favorites is The Secret Garden.
8th Grade Math Teachers
Ryvette Brown
Teacher, Algebra I Intensified and Geometry Intensified
I was an Army medic from 1989 - 1992. While in the Army, I served in Desert Storm. After serving our country, I went to school to become a math teacher. I have taught middle school, high school, community college and at a few universities. I believe in having a great work ethic. I like helping hard working, struggling math students pass class. So, if you are hardworking and want to pass your math class, come see me!
Erin Quinones
Teacher, Pre-Algebra and Math Strategies
I am from Texas and went to the University of St. Thomas where I graduated Cum Laude with degrees in Mathematics, Philosophy, and Education. I played power forward for my university's women's basketball program and then became an Olympic weightlifter for USAW where I competed at the American Open.
Lauren Jeffers
Teacher, Pre-Algebra and Algebra
I am from New York but have lived in Maryland since 2015. I went to school at SUNY Albany (undergrad), SUNY New Paltz (teaching certification), and New York Institute of Technology (Masters). I have been teaching since 2010 and truly love working with young people. In my spare time I enjoy working out, hiking, cooking, listening to audio books, and spending time with my kiddos. We have two pups named Blue and Darrly and they bring such joy to our home. They truly are the best thing to happen to our family.