Development of Learning Tools with the Discovery Learning Model to Improve the Critical Thinking Ability of Mathematics

Abstract

This research was motivated by the still limited learning of mathematics as a means of supporting learning in the 2013 Curriculum. The purpose of this study was to produce some products in the form of learning devices (syllabus, RPP and LKPD) on the material for the flat side building of VIII Middle School with discovery learning models that meet valid, practical, and effective criteria for improving students mathematical critical thinking skills. Learning tools are developed using the 4-D model, which are define, design, develop and assess. The research instrument used was an instrument of validity in the form of a validation sheet to assess the feasibility of the syllabus, RPP and LKPD as well as a practical instrument in the form of a teacher observation sheet activity in applying the discovery learning model and student questionnaire responses to assess the practicality of LKPD. The results of the validation of the experts stated that the product developed reached a valid category with an average rating of 76.67% for syllabus, 76.67% for RPP and 88.04% for LKPD. Learning devices are considered very practical in small group trials with an average response of 96.44% students and large group trials from the observation sheet of teacher activity 93.71% and the average response of students 87.77%. The learning tools have been proved to improve students mathematical critical thinking skills in terms of an average N-gain of 0.53 in the medium category.

The Effectiveness of Discovery Learning Model in Writing Descriptive Text

“…All learning activities must teach participants to be involved in the process of observation up to creation. It embodies discovery learning (Putri et al, 2020;Yerizon et al, 2018;Sulfemi, 2019).…”

Student’s Worksheet Practically by Using Discovery Learning Model to the Ability of Understanding Concept and Mathematics Problem Solving at Grade VII Grade of SMPN 38 Padang

“…One of the models that can be used to solve the problem is the Discovery Learning model. Discovery learning is learning where ideas or ideas are conveyed through the discovery process (Putri et al, 2020;Zakaria and Syamaun, 2017). The learning process begins with providing stimulation, identifying problems, collecting data, processing and interpreting data, proving and drawing conclusions.Discovery learning is a method that encourages students to arrive at a conclusion based upon their own activities and observations.…”

Developing Learning Tools with Cooperative Learning Model of Numbered Head Together (NHT) Structural Approach on Sequence and Series Material

“…22 of 2016 (Kartika et al, 2020). Furthermore, the learning tools made by the teachers still have weaknesses that must be repaired (Putri et al, 2020). Based on interviews with some mathematics teachers at high schools in Pekanbaru, it was found that some teachers only used learning tools, especially syllabus and lesson plans, which were obtained from other sources such as peers, the internet, etc.…”