Smart mechanisms and their influence on geometry learning of elementary school students in authentic contexts

Author(s):  
Wu‐Yuin Hwang ◽  
Anh Hoang ◽  
Ya‐Hsuan Lin
Author(s):  
Chairil Faif Pasani

Teaching geometry in elementary school sets out to build and develop students’ logical thinking skills. Comprehension of geometry topics is expected to develop the students’ skills to solve everyday problems. However, this learning objective has not been met as expected. In Indonesia, there are many elementary school students who still do not understand the basic concepts of geometry, such as shapes and planes. Based on this problem, the researcher conducted a study to examine students’ comprehension of geometric concepts. This study is of an experimental kind and involves two classes: an experiment class and a control class. To solve the problem of geometric topics learning, the researcher utilizes the Van Hiele’s theory. Geometry learning in the first class is delivered using a learning approach based on the Van-Hiele theory (experiment group), while learning in the second class is delivered with the conventional approach (control group). This study comprised of 150 students, drawn from primary five, representing two classifications of the medium and low performances from the selected schools found in Banjarmasin. Before conducting the study, the researcher designed learning scenario and research procedure to ensure the study goes as expected. The conclusion of this study is that students’ comprehension of geometric concepts after Van-Hiele’s Theory-Based Geometry Learning belongs to the medium category, which is better than the students’ comprehension of geometric concepts after conventional learning, which is in the low category. Conclusively, Van Hiele’s geometry learning theory is found to be effective in teaching and learning mathematics.


EDUKASI ◽  
2016 ◽  
Vol 14 (2) ◽  
Author(s):  
Hery Suharna ◽  
Agung Lukito Nusantara ◽  
I Ketut Budayasa

The research reveals a profile of reflective thinking of elementary school students in problem solving fractions based on his mathematical abilities. The instruments used in data collection is Test Problem Solving (TPM), interview. Selection of research subjects in a way given test is based on the ability of mathematics, namely mathematical skills of high, medium and low and further categorized and taken at least 2 people to serve as subjects. The research objective is: describe the profile of reflective thinking that math skills of elementary school students High, medium, and low. Based on the results of the study found reflective thinking profile and high ability students were as follows: (a) the step to understand the problems students have information/knowledge or data that is used to respond, comes from inside (internal) and can explain what has been done; (B) the planned step problem solving students have information/knowledge or data that is used to respond, comes from inside (internal) and can explain what has been done; (C) on measures to implement the plan in terms of information/knowledge or data used by students to respond, comes from inside (internal), could explain what has been done, realized the error and fix it, and communicate ideas with a symbol or image, and (d) the checking step back, namely information/knowledge or data that is used by students to respond, comes from inside (internal) and can explain what has been done. Profile of reflective thinking ability students lowly mathematics, namely: (a) at the stage of understanding the problem, students can determine known and asked in the problem, but the students' difficulties to explain the identification of the facts that have been done, the students explained the understanding vocabulary, and feel of existing data the matter is enough; (B) at the stage of implementing the plan, the students explained, organize and represent data on the issue, describes how to select the operation in solving a problem though students are not sure, and students' difficulty in explaining what he had done; (C) at the stage of implementing the plan, the student has information on calculation skills although the answer is not correct. Students difficulty in explaining about the skills calculations have been done, trying to communicate their ideas in the form of symbols or images, even if students rather difficult to describe, and realized there was an error when using a calculation skills and improve it; (D) at the stage of check, students' difficulties in explaining whether obtained estimates it approached, it makes senseKeywords: reflective thinking, problem solving, fractions, and math skills.


2020 ◽  
Vol 4 (6) ◽  
Author(s):  
Zaenal Arifin

This study aims to: (1) develop thematic textbooks based on local wisdom of our best friend's environmental theme material for grade V elementary school students, (2) Know the validity, practicality and effectiveness of thematic textbooks based on local wisdom of our best friend's environmental theme material for grade students V elementary school. The development of thematic textbook learning media based on local wisdom uses the Research and Development (R & D) method. The development stages include: (1) Potentials and problems, (2) Data collection, (3) Product design, (4) Design validation, (5) Design revision, (6) Product testing, (7) Product revision (Sugiyono, 2016). The research was conducted with 33 students from class V SDN 2 Sendang Jepara Regency. Initial product development is a process of making media based on needs analysis. Expert testing or validation was carried out by 2 experts, namely media experts and material experts. The data collection method in this research is observation, interview, and questionnaire. The data analysis technique used descriptive analysis and comparison test of two independent groups, namely using the independent t-test. Based on the results of the trial, this thematic teaching material is very valid, very interesting, effective and can be applied in learning. This can be seen from the results of the validation test from three experts which show that the product is good. The results of the effectiveness test showed that the experimental class students had better learning outcomes than the control class. This means that textbooks based on local wisdom of Jepara Regency are developed effectively


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