摘要：The purpose of this study were to (1) prove the students' mathematical writing ability in the application of PBL achieve classical mastery criteria;(2) describe the mathematical writing ability of students in PBL observed from the level of logicalmathematical intelligence.The research used a mixed-method.The population of this study was 278 VIIth grade students in SMP 4 Kudus.The sample in this study was 32 students of VII-A class.Quantitative data sampling was done using simple random sampling technique.Quantitative data were obtained using tests.Quantitative data analysis used the normality test,homogeneity test,t-test,and z-test.The subjects in this study were 6 students.Qualitative data analysis was the analysis of data from interviews.The results showed that (1) the mathematical writing ability of VIIth grade students observed from the level of logical-mathematical intelligence achieved classical mastery criteria;(2) Students with high,moderate and low logical_mathematical intelligence levels met all three aspects of their mathematical writing ability,such as written text,drawing,and mathematical expression.
关键词：Mathematical Writing;Problem Based Learning;Logical-Mathematical Intelligence
