Efectiveness of Jarimatika Method to Improve Students’ Counting Ability in Kefamenanu, East Nusa Tenggara
One of the methods of learning that is suitable for counting specifically for multiplication operations is the method of Jarimatika. The method of the Jarimatika is the method of learning to use the fingers as an instrument of multiplication. The advantages of this method in addition to not requiring props, students are also not asked to memorize because calculations are done by utilizing the fingers. Students are emphasized to understand the concept so that the math learning is expected, especially the counting operation of multiplication can be more easily revisited, more enjoyable, fun, challenging and not to burden brain memory by memorization. What is more enjoyable is because it can be used even at the time of the exam because the tools are already available, the fingers of students themselves. This research was held at SDN Neonbat Kefamenanu One of the elementary schools in East Nusa Tenggara (NTT) with the subject of the overall research of 5th Class approximately 20 students. The activity of devotion not only stops by giving pre-test, explained techniques of Jarimatika and then give some
exercise at the end of explanation but continued with the mentoring of students. This mentoring activity approximately one month and at the end of mentoring process, researchers give the post-test to know the counting ability of students. The mentoring process provides a positive impact on the results that students get. This can be seen from the average value in pre-test that is obtained 55.84 increased to 75 after being given a mentoring. From the test by using paired sample t test, it can be shown that the average of post test result is more than pre-test. The conclusion is Jarimatika method improve student’s counting ablility in Kefamenanu, East Nusa Tenggara.