As it is seen in Table 1, the students in the experimental group got an average of 24.47 points in the pre-test
unit of Hoop and Circle; they got average 71.57 in the post test administered after the application. According to
the results obtained, there is a 47.10 point difference in favor of the post test between the means of the grades
that the students in the experimental group got in the pre and post achievement tests. This difference can be
named as the average achievement grade that the students in the experimental group obtained in the unit of Hoop
and Circle. The “t” value has proved to be significant according to the results of a paired t-test that has been
conducted to learn the significance of the difference between these average grades that the students in the
experiment group obtained in the pre and post tests [t=-2.74; (p=.00