Abstract:
This study aims to observe perception and activity of college students during the
taking place of Elementwy Statistics learning on the implementation of lesson study to the
students of Mathematics Education on academic year 2011/2012. This study is performed
on odd semester 2011/2012. There are 4 cycles in this study, the stages in each cycle are
Planning, Doing and Seeing. The outcome which be gotten is the materials of subject, it is
the result of input and discussion of team teaching, the perception of college students
toward the learning activity is good and the activity of college students is more increased
than before.