As seen on the Table 8, the mean score of pretest for the control group was 46,52 (SD=18,34) out of 100. The mean scores of pretest for experimental groups that was implemented activity-based learning with using concrete manipulatives and by using GeoGebra were 49,43 (SD=15,06) and 49,97 (SD=19,40) out of 100, respectively. On the basis of these pretest results, it can be said that the mean scores of experimental groups were approximately similar to each other, although their mean scores were relatively higher than that of the control group.

On the basis of the Table 8, the mean score of the posttest for the control group was 60,64 (SD=19,62) out of 100. In additionOn the other hand, the mean scores of the posttest for experimental groups implemented with usingthat used concrete manipulatives and by using GeoGebra were 68,76 (SD=18,05) and 79,61 (SD=15,81) out of 100, respectively. For this reason, it can be said that GeoGebra usedthe GeoGebra-using class had the highest mean score among three classes in terms of post-testposttest results. In addition, the mean score of group that implemented activity-based learning with using concrete manipulative was higher than the mean of the group that implemented just activity-based learning in terms of post-test results.