Abstract
This research aims to: Analyzing the validity, practicality, and effectiveness of learning tools oriented towards learning based models Mathematics Based on Realistic Mathematical Approaches to Improve Mathematical Reasoning Abilities and Students' Mathematical Literacy Abilities. In trials I and II an increase in the average value of students' mathematical reasoning abilities by 14.64; 2) In trials I and II an increase in the average value of students' mathematical literacy ability of 7.29 Keywords : Learning Outcomes, Inquiry, Problem Posing. DOI: 10.7176/JEP/11-14-11 Publication date: May 31 st 2020
Highlights
PRELIMINARY According to Hasratuddin (2015: 27) mathematics is a means or way to find answers to problems faced by humans, a way of using information, using knowledge of shapes and sizes, using knowledge about counting, and the most important thing is to think in humans themselves to see and use relationships
The ability of mathematical reasoning is interpreted as a way of mathematical thinking of students to determine conclusions, based on relevant sources or rules that have been verified (Mardiah: 2017)[4]
Effectiveness Analysis Learning Tools With Realistic Mathematics Approach in Trial I Classical completeness results from students' mathematical reasoning abilities in the first test posttest by 50% and classical completeness of the results of students' mathematical literacy abilities in the first test posttest 62.5% In accordance with the completeness criteria of student learning outcomes in a classical way, which is a minimum of 85% of students who take the test of reasoning ability and mathematical literacy ability of students are able to achieve a score of 65
Summary
According to Hasratuddin (2015: 27) mathematics is a means or way to find answers to problems faced by humans, a way of using information, using knowledge of shapes and sizes, using knowledge about counting, and the most important thing is to think in humans themselves to see and use relationships. Usniawati (2011) found the cause of students failing to solve math problems, namely students lack mastering mathematical concepts with good reason. This is in line with Azriah (2018) states that Indonesia has knowledge at the level of reasoning of 17%, this shows that Indonesian students have the lowest average[1]. According to the OECD (2016) mathematical literacy is the ability of students to formulate, use and interpret mathematics in various contexts[5]. This includes mathematical reasoning and uses concepts, procedures, facts and mathematical tools to describe, explain and predict phenomena. More than 85% of elementary school graduates, 75% of junior high school graduates, and 55% of high school graduates only reach the level of competency of students of grade 2 and below (news.okezone.com)
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