Application Of Cooperative Model Kancing Gemerincing Type To Improve Student's Communication Skillss In Natural Resource And Environment Learning. This research background by the less active and communicative learners in the learning process. The research was conduct in the fourth grade at Gunungmasigit 2 Elementary School. The learning model used is cooperative model Kancing Gemerincing type. The aim of the research is to improve communication skills and learning outcomes of learners. The research method used is Classroom Action Research with Elliot's design consisting of three cycles, and each cycle consists of three actions. The result showed that there was an increase in communication skills and learning outcomes of learners each cycle. Improvement of communication skills show from the acquision of the average value of learners in cycle I is 55,70, at cycle II 66,26, and cycle III 75,15. The average score of learning outcomes of learners in cycle I is 65,44, cycle II 75,94, and cycle III 84,44. Based on the results of these research, it can be conclude that the application of cooperative model of Kancing Gemerincing type can improve the communication skills and learning outcomes of learners. Therefore, the cooperative model of Kancing Gemerincing type can be used as an alternative in Science learning.