these factors, the pre-tests and the post-tests were applicable for 56 participants during the 2009 – 2010 academic year. Schools were visited for conveying retention tests, and the test was fulfilled by the participant teachers who were at the school during the visits. It was tried to access via email to the teachers who were not at the school during the visits; however, not all of them replied the email correspondence. Consequently, the retention tests applied to 41 participants, as the rest of them were not accessible. In terms of subject, two of the instructors were