Summer Learning Acceleration Through High-Impact Tutoring

Case Study Overview:

Scope | Summer programs | 414 students | Grades 3–9
Focus | Foundational math + Algebra readiness
Impact | Double-digit gains in weeks

GROW High-Impact Tutoring provides districts with a flexible solution for summer learning programs seeking to accelerate progress in high-need academic areas. Through small-group virtual tutoring aligned to district priority standards, GROW helps students strengthen foundational skills, build confidence, and enter the new school year better prepared for grade-level instruction.

In summer programs with Twin Rivers Unified School District (CA) and Pasadena Unified School District (CA), students received targeted math support designed to reinforce key concepts and promote measurable learning growth.

Program 1 Overview

Twin Rivers Unified School District:

• Students served: 163
• Grade: 9th grade
• Subject: Math

Students received targeted support on Algebra and functions standards, including solving equations, modeling relationships, and interpreting functions.

Evidence of Impact

• Among students who completed both the pre- and final assessments:
• Average scores increased from 35% to 59%
• Students scoring above 60% increased from 11% to over 50%
• The average score gain was +24 percentage points

Growth was strongest in standards related to solving real-world problems, constructing functions, and interpreting linear relationships. Several school sites saw particularly strong outcomes, with final average scores reaching 75%.

Program 2 Overview

Pasadena Unified School District:

• Students served: 251
• Grades: 3–8
• Subject: Math

Programs focused on foundational math skills across elementary and middle school, including place value, fraction operations, proportional reasoning, and rational number operations.

Evidence of Impact

• Average scores increased from 39% to 57%
• Students scoring above 60% increased from 14% to 47%
• The largest improvements were seen in middle school mathematics, including strong gains in rational number operations, ratio reasoning, and decimal place value concepts.

Student Engagement

Tutor observations across both districts highlighted meaningful shifts in student confidence and participation. Students increasingly asked questions, explained their reasoning, and celebrated successful problem solving during sessions. Tutors noted that as students built comfort with the material, they became more willing to attempt challenging problems and collaborate during instruction.

Key Takeaway

High-impact tutoring can make summer learning time count. In both districts, targeted small-group tutoring helped students strengthen foundational math skills and demonstrate measurable improvement over a short program window, showing how summer programs can accelerate learning rather than simply prevent learning loss.