Analisis Multipel Representasi Kimia Siswa pada Konsep Laju Reaksi

Abstract

Knowledge of the appropriate learning techniques for the delivery of certain chemical concepts can be done an analyzing process of students abilities in multiple chemical representations. This research is intended to find out the students multiple representation ability in describing and explaining reaction rate concept. This research used descriptive research design by involving a group of subject. The test instrument contained of 15 two-tier multiple choices question. The results showed that 21.92% of students have been able to connect the three of chemical representation level which showed that the students have been complete understanding of the concept. In 25.55% of students tend to be able to interconnect at two representation levels which showed that the students have been able to draw a conclusion but experience a difficulty to see the reason. In 14.96% of students tend to understand the concept better at the submicroscopic representation level which showed that the students have not been able to draw a conclusion from the reason started and 37.56% of students have not been able either to comprehend or to connect the concept at three of representation levels. Based on grouping of answers to the ability interconnect the three levels of student representation, it can be seen that students are better able to solve problems with interconnection patterns starting from macroscopic to symbolic and submicroscopic.

Augmented Reality-based Media on Molecular Hybridization Concepts Learning

“…Students can understand chemistry conceptually if they can translate chemical phenomena into macroscopic, submicroscopic, and symbolic representations (Helsy & Andriyani, 2017;Safitri, Nursa'adah, & Wijayanti, 2019). Submicroscopic visualization is very important, so students understand the concept of chemistry as a whole (Kelly & Hansen, 2017).…”

Analisis Reduksi Miskonsepsi Kimia dengan Pendekatan Multi Level Representasi: Systematic Literature Review

“…Multi level representai terdiri dari level makroskopik, level submikroskopik, dan level simbolik. Kegagalan pemahaman konsep kimia pada level submikroskopik menjadi akar permasalahan miskonsepsi (Safitri, Nursaadah, & Wijayanti, 2019). Peserta didik akan mengalami kesulitan dalam menerapkan konsep kimia ke dalam kehidupan sehari-hari karena adanya ketidakseimbangan dalam memahami ketiga level representasi.…”

Sensitivity of two-tier and three-tier tests in detecting student’s misconceptions of chemical bonding

“…Chemistry is abstract like atoms, molecules, and ions which are basic chemical materials that are difficult to understand when students are placed in a position to believe something by imagining the existence of the material without seeing it directly according to Stojanovsk et al (2014); Safitri et al (2019). In this study, the material chosen was chemical bonds encompassing ionic bonds, covalent bonds, coordination covalent bonds, and metal bonds.…”