This document summarizes an action research study that investigated the effect of "triangulation grouping" on below average students' understanding of physics concepts. The study grouped below average, average, and above average students together, with the average and above average students tutoring the below average student before evaluations. Data collection included student surveys, test results, observations of student participation and attitudes. The results showed that both below average and above average students benefited from this grouping approach, with below average students demonstrating improved understanding of physics concepts.