MathILy
MathILy is an intensive, five-week residential summer program for mathematically talented high school students focusing on discrete mathematics.
▌ Editor's read The MathILy website loads as a legitimate academic summer program. It is an intensive five-week residential program for mathematically talented high school students, with a focus on discrete mathematics. The program has been operating for 17 years, founded by Dr. sarah-marie belcastro, who also serves as the Director. The website mentions that all staff undergo background checks. While not accredited by the ACA, this is common for highly specialized academic programs. Google reviews for MathILy are overwhelmingly positive, with a 5.0-star rating from 14 reviews, praising the challenging curriculum, supportive staff, and transformative experience. The program's 'About' page highlights its commitment to fostering a deep understanding of mathematics through active learning and problem-solving. The program's Facebook page is active, providing updates and insights into the camp's activities.
⌬
Since 200917+ years operating
Who thrives here Ages 14–18
MathILy serves high-school campers, which means the program is competing against summer jobs, college visits, internships, and residential overnight options. The case for a day camp at this age is usually a CIT (counselor-in-training) track, deep specialization in academic, or a portfolio item parents and kids both value. Programs that don't articulate one of those three usually lose this age band by 9th grade.
Facts & Credentials
- Program type
- Overnight camp
- ACA accredited
- Not verified
- Established
- 2009 (17 years)
- Operator
- Not listed
- Staff-to-camper ratio
- Not listed
Details
- Category: Academic
- Ages: 14–18
- Hours: 24-hour residential
- Address: 101 North Merion Avenue, Bryn Mawr, PA 19010, USA
- Cost notes: USD. The total fee is $6175 for the five-week program. Financial aid is available and based on need.
Logistics
- Lunch provided: No
- Transportation: No
- Financial aid: No
- Setting: mixed
Frequently asked about MathILy
- What ages does MathILy accept?
- MathILy is open to children ages 14–18. Camps publish their own age cutoffs, and some run mixed-age groups internally; check the registration page for that summer's grouping if your child sits at a boundary.
- How much does MathILy cost?
- MathILy publishes $1,235/week for the standard session. USD. The total fee is $6175 for the five-week program. Financial aid is available and based on need. Final cost depends on session length, sibling discounts, and whether extended care is added on.
- What are MathILy's hours?
- MathILy runs 24-hour residential. If those hours don't quite cover your work day, check whether extended care or early drop-off is offered separately.
- Does MathILy provide lunch?
- MathILy does not include lunch — campers bring their own. Most day camps without provided lunch are nut-free or nut-aware, so check the allergy policy before packing. Frozen water bottles double as ice packs and drinks; insulated lunch boxes hold below 40°F for about four hours.
Planning guides
Editorial checklists to use before you compare MathILy with other camps.
- How to choose a summer camp · Use the decision checklist before you compare finalists.
- STEM summer camps guide · Compare projects, staff fit, and age-readiness signals.
- Financial aid and scholarship camps · Compare aid policies, discounts, and application timing.
- Summer camp pricing in 2026 · Benchmark weekly cost before you commit a deposit.
Camps near here
Same city, with age-overlapping options first. Other camps to consider alongside MathILy.
- Tannen's Magic Camp · Bryn Mawr, PA · Ages 10–17 · $1,595/week