Symbolic Interactionisn

I like Erna Yackel's article on “Explanation, Justification and Argumentation in Mathematics classrooms”. He talked about how he used the symbolic interactionist perspective in his attempt to investigate explanation, justification and argumentation in mathematics classrooms. This approach interests me a lot as it is compatible with psychological constructivism that focuses on individual learning and is useful when studying students’ inquiry in mathematics as it emphasizes on both individual and group sense-making processes. However, i need to gather your views on how this theoretical framework can help me craft out my research proposal on how and why Math Talk can help in the learning of Mathematics. Anyone has done something like that? I would love to hear your comments.