The document discusses a study on co-teaching practices at Yishun Secondary School. It provides background on the school's use of co-teaching to address challenges in mixed-ability classes. It outlines the study's purpose to understand effective co-teaching models and their impact on student engagement and achievement. A literature review covers definitions of co-teaching models and components. Interim findings report academic results from co-taught classes and student survey feedback. Recommendations address selecting appropriate co-teaching models and improving teacher collaboration.