This study aims at researching a new way of grammar teaching-learning method, "the grammar communicating through the reading-playacting". This is based on premise that the grammar in text-based is meaningful for changing paradigm about the existing grammar education, the grammar in systematic. And this method enables students to communicate many grammatical meanings of a text in classroom environments which is alive and ecological. For reaching this aim, a concept of "the text fused with grammar knowledge narratively" and "the reading-playacting communicated with performances" is established. And then the convergence possibilities in both concepts is demonstrated. As a result, a methodical principle could be set on transact action in the convergence of "narrative - grammar - performance". This principles are "dynamics, interest, integration". Eventually, this study arranges a teaching-learning plan and model for applying to a real class in a school. So, "Students will perform and understand with a text fused with grammar knowledge narratively, and do inquiry the grammatical meaning, in teaching-learning environment as a stage and a field of public opinion." could be practicing.