2.2 THE WORKİNG GROUP
Before the implementation starts, in order to establish the experimental group and the control group which is closed to each other for the selection of two classes that are performed studies. To be close the levels of 4B and 4D were compared each of classes’s midterm points. And the level of prior knowledge of groups with similar characteristic to each other in order to see whether or not whose name is t-test that is shown the results in Table 1. Table 1 . Results of the pre test results