Errors of High School Students Solve Double Discount Problems

DOI

10.2991/assehr.k.200827.114How to use a DOI?

Keywords

interpretation, concept, operation, final answers

Abstract

Problem-solving is an integral part of the process of learning mathematics in schools that cannot be separated in daily life situations. One of the mathematical material that is found in a daily life situation is a discount. Shopping centers often give double discounts to their customers so the buyers are interested in shopping. A double discount is one of the materials taught in social arithmetic and is an interesting topic to be studied. But the study rarely discusses giving double discounts to high school students. So the purpose of this study is to describe the errors of high school students in solving the problem of double discounts. 122 high school students in the Surabaya, Sidoarjo and Gresik regions participated in the study to solve a double discount problem. Researchers collect student answers to be grouped and analyzed based on the errors they made. The results indicate there are four errors made by students in solving the double discount problem, that is (1) misinterpretation of the problem; (2) errors using discount principles; (3) operating errors, and (4) errors giving final answers. Teachers need to create a learning environment that habituates students to express their interpretations of problems to get appropriate solutions.

Copyright

© 2020, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Lydia Lia Prayitno
AU  - Purwanto
AU  - Subanji
AU  - Susiswo
AU  - Ninik Mutianingsih
AU  - Agus Prasetyo Kurniawan
PY  - 2020
DA  - 2020/08/28
TI  - Errors of High School Students Solve Double Discount Problems
BT  - Proceedings of the SEMANTIK Conference of Mathematics Education (SEMANTIK 2019)
PB  - Atlantis Press
SP  - 39
EP  - 43
SN  - 2352-5398
UR  - https://doi.org/10.2991/assehr.k.200827.114
DO  - 10.2991/assehr.k.200827.114
ID  - Prayitno2020
ER  -