Equip and inspire your teachers. Propel your students forward.

NSSI transforms summer school learning from a missed opportunity into a strategic cornerstone and a key driver of student achievement and teacher development.
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Should You Build Or Buy Your Summer Program?

Summer school is no longer a “nice-to-have.” It’s a critical part of district strategy for accelerating learning, addressing instructional gaps, and re-engaging students who need additional support. That’s why we created a practical tool to help district and school leaders weigh the pros and cons based on your unique goals, staffing, and student needs.

"Trusted

"2025

In 2025, NSSI partnered with 27 school districts across 13 states and DC to serve roughly 65,000 students.

This is the best PD I have had in the 14 years I have been teaching. NSSI is giving teachers a great way forward to streamline instruction and guide them to a successful lesson/classroom. - Catherine L., School Leader
The scripted curriculum really set us up for success. It was clearly well-written and refined over time. It's one of the best curriculums I've worked with! - Michelle L., Teacher
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