Do the Teachers need to Research their Own Teaching ?

Rosaini
12301249002
Pend. Matematika Sub 2012
English

After I read the article, this is a good thing to do research. every research who did by teachers must be wrote, because when they to the research again we must think that the research can not be same with before research. To make know only, teachers wrote their method and it's not wrong to show their method in front of another teachers.