scholarly journals Difficulties of 6th Grade Elementary School Students in Solving the Four Basic Fundamental Operations: Addition, Subtraction, Multiplication and Division of Natural Numbers

2016 ◽  
Vol 07 (13) ◽  
pp. 1820-1833 ◽  
Author(s):  
Celia Finck Brandt ◽  
Tânia Stella Bassoi ◽  
Ana Lúcia Pereira Baccon
Keyword(s):  
Elementary School ◽  
Elementary School Students ◽  
Natural Numbers ◽  
School Students

scholarly journals The problem with percentages

2018 ◽  
Vol 373 (1740) ◽  
pp. 20160519 ◽  
Author(s):  
Jennifer A. Jacobs Danan ◽  
Rochel Gelman
Keyword(s):  
Elementary School ◽  
Elementary School Students ◽  
Research University ◽  
Rational Numbers ◽  
Core Knowledge ◽  
Natural Numbers ◽  
Major Research ◽  
School Students ◽  
Simple Arithmetic ◽  
Numerical Abilities

A great many students at a major research university make basic conceptual mistakes in responding to simple questions about two successive percentage changes. The mistakes they make follow a pattern already familiar from research on the difficulties that elementary school students have in coming to terms with fractions and decimals. The intuitive core knowledge of arithmetic with the natural numbers makes learning to count and do simple arithmetic relatively easy. Those same principles become obstacles to understanding how to operate with rational numbers. This article is part of a discussion meeting issue ‘The origins of numerical abilities’.

PROFIL BERPIKIR REFLEKTIF SISWA SD DALAM PEMECAHAN MASALAH PECAHAN BERDASARKAN KEMAMPUAN MATEMATIKA

EDUKASI ◽  
2016 ◽  
Vol 14 (2) ◽  
Author(s):  
Hery Suharna ◽  
Agung Lukito Nusantara ◽  
I Ketut Budayasa
Keyword(s):  
Elementary School ◽  
Problem Solving ◽  
Elementary School Students ◽  
Reflective Thinking ◽  
Research Subjects ◽  
Math Skills ◽  
School Students ◽  
Calculation Skills ◽  
High Ability Students ◽  
Selection Of

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.

DEVELOPMENT OF A TEACHING BOOK BASED ON LOCAL WISDOM OF JEPARA DISTRICT FOR CLASS V ELEMENTARY SCHOOL STUDENTSDEVELOPMENT OF A TEACHING BOOK BASED ON LOCAL WISDOM OF JEPARA DISTRICT FOR CLASS V ELEMENTARY SCHOOL STUDENTS

2020 ◽  
Vol 4 (6) ◽  
Author(s):  
Zaenal Arifin
Keyword(s):  
Elementary School ◽  
Data Collection ◽  
Learning Outcomes ◽  
Elementary School Students ◽  
Descriptive Analysis ◽  
School Students ◽  
Initial Product ◽  
Class V ◽  
Validation Test ◽  
Analysis Technique

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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