Over 65 JHU students serve as mentors during each academic year. Mentors are selected via an application and interview process each Fall and complete training before beginning mentoring sessions with our community partners.
On average, each active mentor spends 2-3 hours per week volunteering with Baltimore City students in-person and collectively our organization serves over 2,750+ volunteer hours each school year.
Our program is supported by paid student staff under the guidance of 2 full-time staff members. Student staff meet weekly and provide critical administrative, logistical and operational support behind the scenes to keep CCSL running successfully each year. Student leadership positions are selected via a competitive application process each Spring semester.
Student Staff
Mya is currently pursuing a Master of Science in Education: Educational Studies at Johns Hopkins University. She completed a B.Sc. in Public Health at the Asian University for Women. She is also volunteering with Thread, where she fosters meaningful, youth-centered relationships through interactive and engaging activities. Over the summer, she worked as a Research Fellow at the Center for Research, Policy, and Innovation (CRPI), where she led and managed an education research project focused on implementing social-emotional learning (SEL) interventions for marginalized and displaced students, supervising 5 research assistants.
Kalista is a first-year masters student at Johns Hopkins, working toward her M.S. in Clinical Mental Health Counseling. She obtained her B.S. in Psychology from Metropolitan State University of Denver, but grew up in San Antonio, Texas, which is where she calls home. In her free time, she loves to read, hike, and binge-watch Friends. She is thrilled to be a part of CCSL and is looking forward to working with her peers to inspire others to pursue STEM careers.
Hailyn is a sophomore majoring in Molecular and Cellular Biology at Johns Hopkins. She grew up in Maryland, serving as co-president of her high school’s SciOly team as well as co-founding the SciOly teams at her local middle and elementary schools. She is eager to continue supporting students through her work with CCSL!
Tarini is a junior pursuing a B.S. in Biomedical Engineering at Johns Hopkins. She previously served as a CCSL mentor at Mergenthaler Vocational Technical High School, Westport Elementary/Middle School, and St. Francis School of Assisi, where she enjoyed helping students with build and lab events. This year, Tarini is excited to create new kits that are both engaging and fun. Outside of academics, Tarini enjoys exploring new places. Over the summer, she traveled to New York City, Philadelphia, and Boston via Amtrak trains. She also enjoys trying new Baltimore-based restaurants.
Sophia is a sophomore studying Biomedical Engineering and Material Science and Engineering. She did Science Olympiad in high school and volunteered with MERVO as a CCSL mentor. She loves Science Olympiad and can’t wait to create engaging and informational content for the students. In her free time, Sophia likes to bake, craft, and read.
Manvi is a junior majoring in Neuroscience at Johns Hopkins. She competed in Science Olympiad for eight years, and for the past two years, has served on the board of the Johns Hopkins Invitational. Science Olympiad has played a huge role in shaping her passion for the sciences, which is why she loves being a part of CCSL. Outside of academics, she enjoys playing basketball, cooking with her roommates, going to the gym, and rewatching her favorite shows on Netflix.
Avanesh is a sophomore studying Biophysics. A former Science Olympiad competitor himself, he now works with CCSL to help share the excitement of Science Olympiad. Last year, he volunteered as a mentor at Dunbar High School, and this year he is excited to help coordinate tournaments. In his free time, he enjoys rock climbing.
Head Mentors
Professional Staff
Amanda Valledor
CCSL Program Administrator
Amanda Valledor is the CCSL Program Administrator overseeing the Charm City STEM League (CCSL) program. She manages strategtic operations, community partnerships, and program administration, as well as leads curriculum development and event planning.
Amanda co-founded CCSL while pursing her B.S. in Biomedical Engineering from Johns Hopkins University and served as a near-peer mentor with CCSL for 2 years. After graduation, she completed two years of AmeriCorps service in a 4th grade classroom with City Year New Hampshire and worked as a curriculum coordinator at the Museum of Science in Boston where she developed hands-on STEM activities, taught engineering and computer science summer courses, and supported the Overnight Program for students and scouts in grades 1-8. She retuned to JHU in December 2020 as a full time staff member to support CCSL's continued expansion. Amanda has coached students participating in FIRST Robotics and Science Olympiad and serves as the advisor for the Maryland Science Olympiad at JHU collegiate alumni chapter on campus.
Jamila Rimmer
STEM Outreach Program Analyst
Jamila Rimmer is the STEM Outreach Project Analyst for the Charm City STEM League (CCSL) and leads the training and support for general mentors and supervises the Head Mentor team. She brings over 25 years of experience in education, having taught middle and high school mathematics in Philadelphia, PA. Beyond the classroom, Jamila served as Director and Chief Academic Officer at Project Forward Leap, a nonprofit organization that collaborated with school districts across Pennsylvania to provide STEM enrichment programs for middle and high school students.
Jamila holds a B.S. in Mathematics Education from Temple University, an M.S. in Nonprofit Management from Eastern University, and an Ed.S. in Curriculum, Instruction, and Professional Development from Walden University. Now based in Maryland, Jamila is dedicated to expanding access to meaningful STEM learning experiences for students in Baltimore City Schools.
The idea for the CCSL was created during a JHU Intersession class called "Leading Social Change" in January 2012. Four undergraduate students (Amanda Valledor, Julia Zhang, Nathan Bradley, Nour ElSafoury) pitched the idea in a business plan competition and were awarded a $5,000 grant to bring the idea to life.
In Fall 2012, Charm City Science League launched as a student group under the Center for Social Concern and supported one Science Olympiad team at Barclay Elementary Middle School with a small group of undergraduate mentors. After two years as a successful pilot program, CCSL began expanding to support more teams acrossBaltimore City. CCSL currently partners with 20+ elementary, middle, and high school teams annually and provides additional support by providing material kits, hosting events like campus visits, scrimmages and an invitational tournament, and supporting Baltimore City student competitors at Regional and State tournaments.
In summer 2023, CCSL was renamed Charm City STEM League to include the program's expansion to encompass all elements of STEM educational content and transitioned to the Whiting School of Engineering as a Center for Educational Outreach department flagship program.
CCSL supporting it's first team at the Regional tournament Spring 2013
CCSL's first middle school students working on their Sounds of Music entry