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Download full textPradina Parameswari; Purwanto; Sudirman; Susiswo – Mathematics Teaching Research Journal, 2024
Students' difficulties in differentiating the direct proportion and inverse proportion problems cause interference. Proactive interference is the error that occurs when old information (concept of direct proportion) interferes with new information (concept of inverse proportion). In solving the problem of inverse proportion, students often use the…
Descriptors: Problem Solving, Mathematical Concepts, Mathematics Instruction, Grade 8
Basri, Hasan; Purwanto; As'ari, Abdur Rahman; Sisworo – International Journal of Instruction, 2019
Critical thinking skills are one of the four skills needed in the 21st century. Critical thinking skills are so important that they need to be taught and included in the school curriculum. This research aims to: (1) describe the critical thinking skills of junior high school students in solving mathematical problems and (2) identify the students'…
Descriptors: Critical Thinking, Thinking Skills, Mathematics Instruction, Problem Solving
Ulya, Wisulah Titah; Purwanto; Parta, I. Nengah; Mulyati, Sri – International Education Studies, 2017
The purpose of this study is to describe and generate interaction model of learning through "Elip-Marc" activity via "TPS" cooperative learning in order to improve student's mathematical reasoning who have valid, practical and effective criteria. "Elip-Marc" is an acronym of eliciting, inserting, pressing,…
Descriptors: Cooperative Learning, Mathematical Logic, Mathematics Instruction, Teaching Methods
