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EFFECTS OF USING THE JAPANESE ABACUS METHOD UPON THE ADDITION
AND MULTIPLICATION PERFORMANCE OF GRADE 3 INDONESIAN STUDENTS
Article
· February 2018
DOI: 10.24071/ijiet.2018.020106
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Ateneo
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IJIET
, e-ISSN 2548-8430, p-ISSN 2548-8422, Vol. 2, No. 1, January 2018
International Journal of Indonesian Education and Teaching
http://e-journal.usd.ac.id/index.php/IJIET
Sanata Dharma University, Yogyakarta, Indonesia
47
EFFECTS OF USING THE JAPANESE ABACUS METHOD
UPON THE ADDITION AND MULTIPLICATION PERFORMANCE
OF GRADE 3 INDONESIAN STUDENTS
Juliana & Lester C. Hao
Tarakanita Institute, Yogyakarta, Indonesia & Chiang Kai Shek College,
Manila
yettytjong75@gmail.com & lester.hao@cksc.edu.ph
DOI:
https://doi.org/10.24071/ijiet.2018.020106
received 24 August 2017; revised 2 November 2017; accepted 12 December 2017
Abstract
This quasi-experimental study was conducted to determine the effect on accuracy
and finish time of using the Japanese abacus method on the addition and
multiplication performance of thirty Grade 3 pupils in selected schools in
Indonesia. Fifteen
formed the experimental group, were enrolled in abacus
training classes outside of their respective schools, and were taught personally by
the researcher through additional abacus treatment for ten meetings. The rest of
the students formed the control group who do not use the abacus.
Both groups
were given the same pretest and posttest on addition and multiplication based on
the Indonesian curriculum. Afterwards, students’ scores and finish time were
analyzed using F-test and Student’s t-test. Results show that there is a significant
difference between the experimental and control groups in terms of finish time in
addition, scores in multiplication, and finish time in multiplication.
Results also
show that there is a significant increase in multiplication score in the experimental
group from pretest to posttest. Student interviews,
observations, and analyses of
sample solutions revealed several errors that were parallel to Stigler’s
classification.
Keywords: addition and multiplication performance,
japanese abacus method,
mental abacus