Holiwarni, BettySolfitri, TitiIrianti2014-05-202014-05-202014-05-20wahyu sari yenihttp://repository.unri.ac.id/xmlui/handle/123456789/6207Learning Activity that used speech method still use mostly by the Science and Mathematics Education Department lecturers of University of Riau for so many reasons. As the result the college student just become a good listener. To increase learning quality the goverment and the university have done all of possible thing. Lesson study program is one of them. Lesson study activity in University of Riau Science and Mathematics Education Department did by four sub-department, exach of them choose one unit name for learning study activity for each semester. Lesson study activity for each department did four cycles and each cycle did 3 activity steps which are plan, do and see. In Do step, there are observers who observe the college students activity during the class. The observation's result saw that college student activity Science and Mathematics Education Department increase on every cycle by using lesson study program.enbeing activelessonKEAKTIFAN MAHASISWA PENDIDIKAN MATEMATIKA DAN ILMU PENGETAHUAN ALAM FAKULTAS KEGURUAN DAN ILMU PENDIDIKAN UNIVERSITAS RIAU DALAM PE MBE LAJARAN ME LAL UI PROGRAM LESSON STUDYUR-Scientific Work Lecturer