scholarly journals Developing refutation text to resolve students’ misconceptions in addition and subtraction of integers

2019 ◽  
Vol 12 (1) ◽  
pp. 14-25
Author(s):  
Syarifah Fadillah ◽  
Utin Desy Susiaty

Students’ misconceptions in addition and subtraction of integers need to be addressed since this topic is a prerequisite for students to learn advanced mathematics topics such as algebra. Having misconceptions in understanding the prerequisite concepts will hamper the acquisition and integration of new knowledge. The purpose of this study was to develop refutation text to resolve the misconception of students in addition and subtraction of integers. Refutation text was developed in the form of student worksheet adopting the development model from Borg and Gall (1983). Tryout of refutation text involved fifteen seventh-grade students. The study found that (1) The experts’ validation reveals that refutation text is suitable to be used as learning media for students on addition and subtraction of integers; (2) The refutation text implemented in the tryout was useful to resolve students’ misconception in addition and subtraction of integers; and (3) The practitioner’s assessment and students’ response showed that refutation text is practical. Drawing from the findings, we argue that the developed refutation text help students correcting their misconceptions in the topics and could be used by the teachers in the classroom practices. However, the refutation text needs to be extended to anticipate students’ mistake in interpreting word problems by providing some possible mistakes and its correction. Miskonsepsi siswa dalam penjumlahan dan pengurangan bilangan bulat perlu diatasi karena materi ini merupakan prasyarat bagi siswa untuk mempelajari materi matematika lanjutan seperti aljabar. Kesalahan dalam memahami konsep prasyarat akan menghambat penerimaan dan integrasi pengetahuan baru. Penelitian ini bertujuan mengembangkan media pembelajaran refutation text untuk mengatasi miskonsepsi siswa dalam penjumlahan dan pengurangan bilangan bulat. Refutation text yang dikembangkan berbentuk Lembar Kerja Siswa (LKS) dengan merujuk pada model pengembangan Borg dan Gall (1983). Uji coba refutation text dilakukan pada 15 orang siswa SMP kelas VII. Hasil penelitian menunjukkan bahwa (1) hasil penilaian ahli menunjukkan refutation text layak digunakan sebagai media pembelajaran bagi guru dalam mengajarkan penjumlahan dan pengurangan bilangan bulat; (2) refutation text yang diterapkan di kelas uji coba efektif dalam mengatasi miskonsepsi siswa dalam penjumlahan dan pengurangan bilangan bulat; dan (3) hasil penilaian praktisi dan respon siswa menunjukkan bahwa refutation text praktis digunakan sebagai media pembelajaran untuk mengatasi miskonsepsi siswa. Dalam hal ini, refutation text yang dikembangkan membantu siswa memperbaiki kesalahan konsep pada materi penjumlahan dan pengurangan bilangan bulat dan bisa digunakan oleh guru di kelas. Namun, refutation text tersebut perlu dikembangkan untuk mengantisipasi kesalahan siswa dalam mengintepretasi soal cerita dengan menyediakan beberapa kemungkinan kesalahan intepretasi dan perbaikan.

Author(s):  
Anita Lie

Digital technologies and the Internet have revolutionized the way people gather information and acquire new knowledge. With a click of a button or a touch on the screen, any person who is wired to the internet can access a wealth of information, ranging from books, poems, articles, graphics, animations and so much more. It is imperative that educational systems and classroom practices must change to serve our 21st century students better. This study examines the use of Edmodo as a social media to teach a course in Pedagogy to a class of digital natives. The media is used as an out-of-class communication forum to post/submit assignments and resources, discuss relevant issues, exchange information, and handle housekeeping purposes. A survey of students' responses and discussions on their participatory process leads to insights on how the social media helps achieve the required competences.


Author(s):  
Rik Koncel-Kedziorski ◽  
Hannaneh Hajishirzi ◽  
Ashish Sabharwal ◽  
Oren Etzioni ◽  
Siena Dumas Ang

This paper formalizes the problem of solving multi-sentence algebraic word problems as that of generating and scoring equation trees. We use integer linear programming to generate equation trees and score their likelihood by learning local and global discriminative models. These models are trained on a small set of word problems and their answers, without any manual annotation, in order to choose the equation that best matches the problem text. We refer to the overall system as Alges.We compare Alges with previous work and show that it covers the full gamut of arithmetic operations whereas Hosseini et al. (2014) only handle addition and subtraction. In addition, Alges overcomes the brittleness of the Kushman et al. (2014) approach on single-equation problems, yielding a 15% to 50% reduction in error.


1981 ◽  
Vol 28 (6) ◽  
pp. 48-54
Author(s):  
Edward C. Rathmell ◽  
Larry P. Leutzinger

A major part of the instructional time devoted to mathematics in the primary grades involves helping children learn to count, read and write numerals, memorize basic addition and subtraction facts, add and subtract twodigit numbers, tell time, count money, and solve word problems. Since many able students already know or quickly learn these topics, primary teachers are faced with the problem of providing appropriate learning experiences for these children while the remainder of the class is learning them.


1990 ◽  
Vol 21 (2) ◽  
pp. 123-131
Author(s):  
Harriett C. Bebout

Forty-five first graders were categorized into three levels according to their informal strategies for solving addition and subtraction word problems. They were taught to write canonical and noncanonical open number sentences to symbolically represent the structure of eight types of Change and Combine word problems. Their performances on the posttest indicated that children at each level were successful in learning to symbolically represent and solve the instructed problem types.


1991 ◽  
Vol 22 (4) ◽  
pp. 266-280
Author(s):  
Deborah A. Carey

Twenty-four first-grade children were asked to write number sentences and select appropriate alternative number sentences for addition and subtraction word problems. Responses were qualitatively different across five clusters of children. Clusters were characterized by the degree of flexibility in accepting alternative number sentences for word problems. Children in all clusters could write and select open number sentences, such as a+□ =b and □ −a=b, that matched the semantic structure of problems for word problems with small and large numbers. Only the more advanced children could identify standard number sentences, a+b=□ and a−b=□, as appropriate representations for all addition and subtraction word problems. Flexibility in selecting alternative number sentences was related to number size, suggesting that knowledge of number relationships plays a role in the development of a general understanding of part-whole relationships.


1983 ◽  
Vol 14 (1) ◽  
pp. 55-72 ◽  
Author(s):  
T. P. Carpenter ◽  
J. Hiebert ◽  
J. M. Moser

1988 ◽  
Vol 19 (4) ◽  
pp. 345 ◽  
Author(s):  
Thomas P. Carpenter ◽  
James M. Moser ◽  
Harriett C. Bebout

1996 ◽  
Vol 14 (3) ◽  
pp. 345-371 ◽  
Author(s):  
Karen C. Fuson ◽  
William M. Carroll ◽  
Judith Landis

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