Abstract: The objective of this research was to investigate the effect of theÂ learning models on the learning achievement in mathematics viewed from students attitude toward mathematics. The learning models compared were the problem based learning (PBL) type, the cooperative learning model of the missouri mathematicsÂ project (MMP) type, and the direct learning model. This research used the quasi experimental research. Its population was all of the students in Grade VII of State Junior Secondary Schools of Belitung regency in Academic Year 2014/2015. The samples of the research were taken by using the stratified cluster random sampling technique and consisted of 285 students. They were grouped into three classes, namely: 95 students in Experimental Class 1, 96 students in Experimental Class 2, and 94 students in Control Class. The instruments to gather the data were test of achievement in learning mathematics and the students attitude toward mathematics questionnaire. The proposed hypotheses of the research were analyzed by using the two way analysis ofÂ variance with unbalanced cells. The results of the research were as follows. 1) The cooperative learning model of the PBL type results in a better learning achievement in Mathematics than the cooperative learning model of the MMP typeÂ andÂ theÂ directÂ learningÂ model,Â the cooperativeÂ learningÂ model ofÂ theÂ MMP type results in a better learning achievement in Mathematics than the direct learning model. 2) Â TheÂ studentsÂ withÂ the high attitudes toward mathematics have a better learning achievement in mathematics than those with the moderate students attitudes toward mathematics andÂ those withÂ the low students attitudes toward mathematics, the students with the moderate attitudes toward mathematics have a better learning achievement in mathematics than those with the low students attitudes toward mathematics. 3) There was an interaction the aforementioned learning models and the categories students attitude toward mathematics on the learning achievement in mathematics of the students.Keywords: PBL, MMP, and students attitude toward mathematics.