Peningkatan Keaktifan Peserta Didik dalam Pembelajaran Matematika melalui Pendekatan Belajar “Snow Ball” pada Siswa Kelas VII B Semester Genap SMP Negeri 10 Surakarta Tahun Ajaran 2012/2013
The aim of the research is to increase the students’ activity in math learning through Snow ball method on the main topic rectangle, cube, and cuboid. Method used classroom action research. This is a classroom action research. Techniques of data collection are observation, field note, interview, and documentation. Technique of data analysis is descriptive qualitative by using data reduction, data presentation and drawing conclusion. The research result shows that there is an increase on students’ activity for learning math with the main topic rectangle, cube, and cuboid through snow ball method. This can be seen the fact that: 1) Students affectivity in giving questions before doing treatment is 12,82% and at the last treatment reaches up 35,90%, 2) Students’ affectivity in answering questions before doing treatment is 15,38% and at the last treatment reached up 43,59%, 3) Students’ affectivity in doing try out that is given by the teachers before doing treatment is 33,33% and at the last treatment reaches up 92,31%, 4) Students’ affectivity in doing items in front of the class before doing treatment is 10,26% and at the last treatment reached up 38,46%.