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Journal : Jurnal Elemen

Pendekatan Pendidikan Matematika Realistik Indonesia Berbantuan Puzzle Tangram untuk Mengajarakan Luas Bangun Datar Gabungan Palupi, Evangelista Lus Windyana
Jurnal Elemen Vol 3, No 2 (2017): Jurnal Elemen
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (632.73 KB) | DOI: 10.29408/jel.v3i2.401

Abstract

This study aims to design a learning activity to help student learn the concept of area of complex figures. Realistic mathematics approach is used as learning approach with the helps of tangram as manipulative. Design research is employed as research method. The activity is designed based on the result of curriculum analysis and students’ needs. Then, the designed activity is implemented and tested in a real class of Grade 6. Thirty-two students are involved in this research. Analysis retrospective is done in order to know how the designed activity help the students. The results indicate that the designed activity can be used as an alternative to teach students in determining the area of complex figures.
Senior high school students’ understanding of mathematical inequality Evangelista Lus Windyana Palupi; Sylvana Novilia Sumarto; Mayang Purbaningrum
Jurnal Elemen Vol 8, No 1 (2022): January
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/jel.v8i1.4537

Abstract

Mathematics inequality is an essential concept that students should fully understand since it is required in mathematical modeling and linear programming. However, students tend to perceive the solution of the inequalities problem without considering what the solution of inequality means. This study aims to describe students’ mistakes variations in solving mathematical inequality. It is necessary since solving inequality is a necessity for students to solve everyday problems modeled in mathematics. Thirty-eight female and male students of 12th-grade who have studied inequalities are involved in this study. They are given three inequality problems which are designed to find out students’ mistakes related to the change of inequality sign, determine the solution, and involve absolute value. All student work documents were analyzed for errors and misconceptions that emerged and then categorized based on the type of error, namely errors in applying inequality rules, errors in algebraic operations, or errors in determining the solution set, then described. The result shows that there were some errors and misconceptions that students made caused by still bringing the concept of equality when solving the inequalities problem. It made them did not aware of the inequality sign. Students are still less thorough in operating algebra and do not understand the number line concept in solving inequalities. The other factor was giving “fast strategy” to the students without considering the students’ understanding.
Pendekatan Pendidikan Matematika Realistik Indonesia Berbantuan Puzzle Tangram untuk Mengajarakan Luas Bangun Datar Gabungan Evangelista Lus Windyana Palupi
Jurnal Elemen Vol 3, No 2 (2017): July
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/jel.v3i2.401

Abstract

This study aims to design a learning activity to help student learn the concept of area of complex figures. Realistic mathematics approach is used as learning approach with the helps of tangram as manipulative. Design research is employed as research method. The activity is designed based on the result of curriculum analysis and students’ needs. Then, the designed activity is implemented and tested in a real class of Grade 6. Thirty-two students are involved in this research. Analysis retrospective is done in order to know how the designed activity help the students. The results indicate that the designed activity can be used as an alternative to teach students in determining the area of complex figures.