SPEKTRA: Jurnal Kajian Pendidikan Sains
Vol. 11 No. 1 (2025): SPEKTRA: Jurnal Kajian Pendidikan Sains

IMPROVEMENT OF STUDENTS' SCIENCE PROCESS SKILLS IN SCAFFOLDING-BASED PROBLEM BASED LEARNING ON THE MATERIAL OF TRAVELLING WAVES AND STATIONARY WAVES

Zahra Nadifa Elahi (Universitas Pendidikan Indonesia)
Saeful Karim (Unknown)
Duden Saepuzaman (Unknown)



Article Info

Publish Date
09 Mar 2026

Abstract

The following study aims to investigate the improvement of students' science process skills in problem-based learning based on scaffolding, especially in the material of traveling waves and stationary waves. Using a quantitative method, the study included 35 students in class XI IPA from a public high school in Sukabumi city, which was determined using purposive sampling. The data collection process used pretest and posttest administered through science process skill assessment instrument. The N-Gain test was used to analyze the data. The study showed that there was a significant difference between the pretest and posttest scores after treatment, indicating an increase in students' science process skills supported by the normalized N-Gain value which was included in the moderate category. The increase in science process skills for indicators of observing, communicating, and concluding is categorized as moderate. While the increase for indicators of classifying, measuring, and predicting is categorized as high.

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Journal Info

Abbrev

spektra

Publisher

Subject

Description

The SPEKTRA: Jurnal Kajian Pendidikan Sains is dedicated to all science practitioners about studies and research of science. Various topics that can be accepted in this journal are: Science Education, Science learning media, Evaluation of science learning, Science learning model, Applied science, ...