PENERAPAN MODEL PEMBELAJARAN PEMBANGKIT ARGUMEN MENGGUNAKAN METODE SAINTIFIK UNTUK MENINGKATKAN KEMAMPUAN KOGNITIF DAN KETERAMPILAN BERARGUMENTASI SISWA IMPLEMENTATION OF GENERATE ARGUMENT INSTRUCTIONAL MODEL USING SCIENTIFIC METHOD TO INCREASE THE COGNITIVE ABILITIES AND ARGUMENTATION SKILLS OF SENIOR HIGH SCHOOL STUDENTS

The purposes of this study were to determine the difference between the generate-an-argument instructional model using scientific method and without scientific method in improving student’s cognitive abilities and argumentation skills, and to determine the correlation between the argumentation skills and the cognitive abilities in the generate-an-argument instructional model using scientific method class. The study was conducted using a quasi-experimental with randomized control group pretest-posttest design. The population were all of students in X MIA grades on one of the senior high schools in Pemalang district. There were two samples that chosen at random cluster sampling. The results showed that there was an improving of student’s cognitive abilities and argumentation skills in two classes. But, in the experiment’s class there was more significantly improvement student’s cognitive abilities and argumentation skills than in control class. In addition, there was a strong and significant correlation between argumentation skills and cognitive abilities of students having lesson implementing the generate-an-argument instructional model using scientific method.