Mathematical reasoning ability is the ability to think logically to get a conclusion. This study aims to analyzing the effectiveness of Process Oriented Guided Inquiry Learning (POGIL) with Peer Feedback towards the students' achievement of mathematical reasoning abilities. The population in this study were 7th-grade students in one junior high…

Mathematics learning using high-order thinking skills is crucial for students. High-order thinking skills can be developed through learning materials with contexts relevant to the student's environment. This research aims to: produce maritime context mathematics teaching materials for higher-order thinking in Junior High Schools that are valid,…

An efficient way to improve the quality of education in critical thinking is developing the better tests. The test has been shifted towards the use of computer-based procedures. Lack of specific topic of critical thinking tests in science and the advanced of technology made the researcher intended to develop and validate a test to measure…

This study aimed at examining the quality of an English summative test of grade VII in a public school located in Kupang. Particularly, this study examined content validity, reliability, and conducted item analysis including item validity, item difficulty, item discrimination, and distracter effectiveness. This study was descriptive evaluative…

This study aimed to produce a valid and reliable assessment tool for junior high school students' integrated science learning and determine their improvement of science process skills (SPS) using the integrated science instruction. The research procedure consisted of ten stages, i.e., preliminary study, planning, development of draft assessment…

Planning a mathematics lesson plan is a complex process. Its quality contributes to the effectiveness of mathematics instruction. Given this significance, improving prospective mathematics teachers' lesson planning ability is essential for teacher preparation programs to produce effective teachers. This study examines how a lesson study within a…

This design research type development study aims at producing a set of PISA-like mathematics task which is valid and practical as well as has the potential effects. Then, activation of fundamental mathematical capabilities underlying mathematical process related to the mathematical literacy as the main potential effect of the developed PISA-like…

In designing the lesson teachers have to adapt the method or learning model with the material to be taught. In the teaching of measuring concept, students frequently faced with measuring instruments, micrometer, screw, scale, and so on. Direct Instruction Model would be suitable for teaching the measurement concepts specifically the skill of using…

The purpose of this research was to develop student-centered learning model aiming to improve high order mathematical thinking ability of junior high school students of based on curriculum 2013 in North Sumatera, Indonesia. The special purpose of this research was to analyze and to formulate the purpose of mathematics lesson in high order…