Collaborative learning needs a careful instructional design to improve specific interaction that would trigger learning. Some previous studies show that concept map as a visualization tool is powerful to support learner to achieve a certain depth of discourse. Additionally, students also should prepare in their private workspace before creating a collaborative concept map to help them externalize and reorganize own knowledge. Difficulties appeared when students have to integrate their individual proposition with the group concept map. In this study, we use the Reciprocal Kit Build (RKB) approach to help students understand the partner's point of views and integrate it with his understanding. We measure the effect of proposed procedures on the students' learning performance based on the group map scores. Further, we also analyze how the dynamics appeared in the RKB comparison map reflected on the students' final group maps.