This experimental researh was aimed at inverstigating the effect of applying Jigsaw cooperative learning model on students mathematical connection and communication abilities, as well as identiying students attitude toward Jigsaw Cooperative Learning model.. The population of this study was all students of SMK Negeri in Kuningan, while the sample was four classes of grade X of the Marketing Department at SMK Negeri 2 Kuningan. Data was collected through test on mathematical connection and communication ability, as well as attitude scale. Independent samples t-Test and One Way ANOVA with Scheffe Test were used to analyze the data. The results showed that: abilities improvement on mathematical connection and communication abilities ofstudents who attended instructions with Jigsaw Cooperative Learning Model were better than those attended direct instruction; in the group treated through Jigsaw Cooperative Learning Model, the improvement of mathematical connection and communication abilities of medium group were better than high and low groups; and students showed positive attitude toward Jigsaw Cooperative Learning Model.