The document describes a system called i-Collaborate (iCS) that was developed by Innova Primary School in Singapore to enhance collaborative learning through the use of semantic analysis technology. iCS is a web-based interactive learning system that incorporates a semantic analysis engine to capture and analyze student discussions. The semantic analysis provides learning analytics and reports to help teachers identify learning gaps, learning styles, and opportunities for intervention to improve student understanding and group processes. The goal of iCS is to make student thinking and social learning visible to promote constructivist learning.