named programs · 3 · from sources
What they call their work
Mentor Teacher Program
Network of award-winning educators who partner with teachers across the country to deliver high-quality instruction and support professional growth.
Professional Learning for Teachers and Leaders
Three-day pre-service training followed by weekly coaching sessions for teachers; specialized training and ongoing development for school leaders and instructional coaches.
Summer Scope Curriculum
4-5 week summer learning program focused on power standards from the prior grade level to prevent learning loss and accelerate student achievement in math and literacy.
activities · 5 groups
What they do
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Summer Academic Enrichment Programs 2 activities
- Deliver summer learning programs in English language arts and mathProvides high-impact summer curricula in English language arts (ELA) and math for K–8 students, including fully scripted daily lessons aligned to standards, discussion prompts, and scaffolds for students needing additional support. The ELA program emphasizes exceptional books, critical thinking, writing, and knowledge building, while math instruction focuses on problem-solving and fluency through interleaved practice. In summer 2025, served over 70,000 students across 13 states and Washington, DC, through partnerships with 27 school districts.
- Provide operational support and implementation resources for summer programsOffers operational guidance and planning tools to support district and charter management organization implementation of summer learning programs. Includes downloadable planning guides, checklists, and tools based on lessons from partnerships with K–12 schools and districts, as well as direct operational support during program delivery.
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Student Progress Assessment & Program Evaluation 1 activity
- Conduct research and evaluation of summer program outcomesConducts pre- and post-assessments to measure student learning gains in partner districts and collaborates with independent researchers to evaluate program impact. Findings show students made gains of 15–40% in priority grade-level standards, with average class score improvements of 16 percentage points in K–8 math and 12 points in 3–8 ELA. An independent evaluation by scholars from Harvard and the University of Virginia confirmed gains in academic skills and student confidence.
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Summer Camp Access Scholarships 1 activity
- Fund summer learning programs through philanthropic supportRaises philanthropic funds to subsidize program costs for partner districts, enabling broader access to summer learning opportunities.
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Educator Conferences & Professional Development Events 1 activity
- Host education leader convenings on summer learningHosts events that bring together education leaders to discuss high-quality curriculum, professional learning, and operational support models for summer programs.
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Teacher Professional Development 1 activity
- Provide teacher and leader professional development for summer programsOffers comprehensive professional development for teachers and school leaders, including a three-day pre-service institute, ongoing weekly sessions, and grade- or subject-specific cohort meetings. Training includes hands-on practice, intellectual preparation, analysis of student work, and support from mentor teachers. In 2025, provided training to 3,000 teachers and 565 school leaders through differentiated tracks for new and returning participants.
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financials · form 990 · fy2023
revenue
Total revenue$3.43M
Contributions & grants$250K7%
Program service revenue$3.18M93%
Investment income$00%
Other revenue$0
expenses
Total expenses$2.96M
Program expenses81%
Admin / overhead13%
Fundraising6%
Salaries & benefits$2.27M
Grants paid out$0
Largest expense lineCompensation
balance sheet
Total assets$3.30M
Cash$3.22M
Investments$0
Liabilities$358K
Net assets$2.94M
Liquid reserves13.0 mo
3 years on record · 2021–2023 · YoY revenue -9.7%
leadership · form 990 part vii · fy2023
Who runs it
paid leadership · 8
| Name | Title | Hours/wk | Compensation |
|---|---|---|---|
| STEVEN F WILSON | CHIEF EXECUTIVE OFFICER | 40 | $290K |
| KERI N HUBBARD | CHIEF OF PROGRAM | 40 | $222K |
| DOUGLAS MCCURRY | CHIEF PARTNERSHIPS | 40 | $189K |
| CARL-ANTHONY WATSON | CONSULTING CHIEF OPERATING OFFICER | 40 | $177K |
| MADELINE LEVINE | SR DIRECTOR OF OPERATIONS | 40 | $165K |
| CHERYL M KELLEY-HENDERSON | ASSOCIATE DIRECTOR, ELA | 40 | $135K |
| JESSICA WAGNER | ASSOCIATE DIRECTOR, OPERATIONS | 40 | $130K |
| BRITTANY V LEAVERTON | SENIOR DIRECTOR, ELA | 40 | $120K |
board members · 5
- CHRIS CERF — BOARD PRESIDENT
- DE'SHAWN WRIGHT — BOARD MEMBER
- EDWARD HUI — SECRETARY
- IAN ROWE — TREASURER
- JACKSON COLLINS — BOARD MEMBER
relationships · 24
Who they work with
- 27 partners Partner — Collaborates with 27 partner organizations to deliver summer programming across 13 states and Washington, DC.
- 27 school districts Partner — Partnered with NSSI in 2025 to implement summer learning programs serving approximately 65,000 students.
- 27 school districts across 13 states and DC Partner — Collaborated with NSSI in 2025 to deliver summer learning programs to approximately 65,000 students.
- Achievement First Partner — Collaborates with educators from Achievement First schools as mentor teachers.
- Alliance College-Ready Public Schools Partner — Has partnered with NSSI for three years, incorporating elements of the NSSI curriculum into fall instruction.
- Ascend Charter Schools Partner — Collaborates with leaders from Ascend Charter Schools as mentor teachers.
- CMO Partner — Implements summer programs in partnership with charter management organizations.
- CMOS Partner — Partners with CMOS organizations to support summer school programming and operational needs.
- Democracy Prep Public Schools Partner — Engages educators from Democracy Prep Public Schools as mentor teachers.
- Districts Partner — Collaborates with school districts to implement summer curricula and teacher training programs.
- Everett Public Schools Partner — Partnered with NSSI for summer programming, citing measurable student gains and enthusiasm from students, families, and teachers.
- Gem Prep Partner — Collaborates with NSSI on summer learning programs and teacher development.
- GreatMinds Partner — Collaborates with staff from GreatMinds as mentor teachers.
- Harvard University Partner — Collaborated with University of Virginia scholars on an independent evaluation of NSSI's summer program outcomes.
- KIPP Partner — Works with educators from KIPP schools and the KIPP Foundation as mentor teachers.
- Khan Academy Partner — Engages staff from Khan Academy as mentor teachers.
- K–12 schools and districts across the country Partner — Partners with K–12 schools and districts nationwide to develop and improve summer learning programs.
- LinkedIn Partner — Platform used for outreach and communication with education leaders
- Relay Graduate School of Education Partner — Collaborates with educators affiliated with Relay Graduate School of Education as mentor teachers.
- Schools Partner — Partners with schools to deliver summer school learning experiences and professional development.
- Teach For America Partner — Recruits and collaborates with former Teach For America corps members as mentor teachers.
- Uncommon Schools Partner — Engages educators from Uncommon Schools as mentor teachers.
- University of Virginia Partner — Collaborated with Harvard scholars on an independent evaluation of NSSI's summer program outcomes.
- district Partner — Implements summer programs in partnership with school districts.
strategies · 5
How they approach the work
Named approaches extracted from this org’s sources. Where others share an approach, follow it to see the full set of orgs running it.
- Integrated Summer Learning Modelmethodology: integrated-summer-learning-modelBy combining standardized curriculum, practice-based professional development, and mentor-supported instruction, we improve student outcomes in Math and ELA because this integrated approach ensures instructional coherence, consistency, and immediate application of teaching skills.
- Interleaved Math Instruction for Fluency and Problem-Solvingmethodology: interleaved_math_instructionBy using interleaved practice to build fluency and alternating it with novel problem-solving tasks, we improve math learning because this approach strengthens retention and adaptive thinking simultaneously.
- Mentorship by Demonstrated Impactmethodology: mentorship-by-demonstrated-impactBy selecting mentor teachers based on their proven ability to accelerate student growth, we improve classroom instruction because mentorship is grounded in validated effectiveness rather than seniority or availability.
- Practice-Based Professional Development with Mentorshipmethodology: practice-based-professional-developmentBy using active, practice-based training combined with mentor modeling and feedback, teachers develop greater capacity and confidence in rigorous instruction because learning is grounded in real classroom application rather than passive learning.
- Student-Centered, Rigorous Instruction with Relevancemethodology: student-centered-learningBy engaging students as active leaders in rigorous, interactive learning that connects to real-world contexts, we increase motivation and learning because relevance and agency enhance cognitive investment.