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Winchester’s only K-12 college-preparatory school

ISW develops confident learners and future leaders.

THE ISW WAY

At ISW, students find their voice.Then they use it.

Heard, challenged, and championed.

Classes are small by design so that every child is heard — never lost in a crowd. Master teachers know each student and draw out their strengths. ISW's rigorous curriculum is based on strong core academics, inquiry-based learning, and the Performing Arts to give every child genuine ways to find their passions and to use their voice.

See our approach
What families say
"ISW is a supportive environment with teachers who care about each student as a whole person. Interactions with all admins and teachers have been kind, professional, and caring. The quality of education is excellent, and I am confident students are being well-prepared for college!"
ISW parent
"ISW is a wonderful place to learn and grow! The teachers are not only knowledgeable and supportive, but they also genuinely enjoy being part of the school community, creating a fun and welcoming environment. The smaller class sizes make a big difference, allowing for personalized instruction and strong connections among students and faculty. ISW encourages students to be curious and independent thinkers, and it provides the resources and support to explore their individual interests."
ISW ALUM
ISW's Four Pillars

Here's how we do it:
with purpose and joy.

01

Academic excellence

College prep academics, delivered by master teachers, build the love of learning and prepare students for college and beyond.

02

Experiential education

From kindergartners running experiments to high school students building robots, ISW students learn by doing across the entire curriculum.

03

Mastery learning

Students advance by achieving mastery of the skills and concepts that prepare them for success. Mastery learning taps into students' innate creative drive to learn while teaching them to take responsibility for their growth.

04

Core values

ISW guides individuals in their growth and character development to create a thoughtful, kind, and empathetic learning community.

Learn more about ISW's approach
ISW by the numbers

Small by design. Serious about outcomes.

12
Average elementary class size
13:1
Student-to-college-counselor ratio — vs. 250:1 in area high schools
67%
Faculty with a master’s or doctorate in their subject area
3×
Named Best Private School by Winchester Star readers
35
Middle-school National Mythology Exam awards, last 5 years
10
Regional & State Science Fair awards, last 7 years
ISW Performing Arts

Developing creativity, confidence, and a voice.

At ISW, the stage is where confidence becomes visible — for every student.

Explore the Performing Arts →

Admissions

See ISW for yourself.

It begins with a real conversation.

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