This research was carried out at the Sports Science Study Program, Faculty of Sports Science, Medan State University, and the Surrounding Medan Football Association (PSMS). The respondents in this study were ten athletes and four football coaches. The model that will be used is a Four-D (4D) model consisting of four (4) stages, namely, Define…

This study aims to: Produce teaching materials in the form of microbiology e-books based on research results on the isolation of styrofoam degrading soil bacteria. Testing the effect of using e-books on improving students' science process skills. The e-book preparation method refers to the Lee and Owens development model and is implemented in…

Issues about climate change and its mitigation are crucial around the world. Universities play a vital role in addressing climate change by educating students on protecting and preserving the environment. Literary works and stories about the environment are texts to educate students in environmental care. This study explored students' attitudes…

In the Cirebon region, there are several environmental issues exists, one of the problems is pollution. In the context of modern information technology, there's a growing preference for electronic-based educational materials. This study aims to evaluate the environmental pollution levels in Cirebon and develop a e-pocket book as a biology learning…

The rapid development of information and communication technology demands the production of digital products. This study aims to produce a digital instructional book based on Balinese local cultures to enhance the learning outcomes of high school students. The development of this book used the ADDIE model. The analysis phase included an analysis…

Teaching materials are one of the essential components in learning process of writing scientific article for undergraduate students. This research aims to obtain an overview of the teaching material needs of writing scientific article with bibliometric analysis-assisted for undergraduate students in university. This research used qualitative…

This study aims to test the effectiveness of using environment-oriented e-books based on Problem-Based Learning (PBL) to empower problem-solving skills. The research design used is a Nonrandomized Control Group, Pretest-Posttest Design. The study used a quasi-experimental method with a 2 x 2 factorial design. The research sample was 70, grade X…

The magnetic field is a more complex and abstract physics subject than other physics subjects, causing students' low ability to solve problems. So there is a need for learning instruments to overcome these problems, especially when online learning during the COVID-19 pandemic. Research creates and implements an online problem-based learning (OPBL)…

Currently, it is still rare to find teaching materials that are innovative and use technology, so they have an impact on decreasing student motivation and independence in learning. The purpose of this study was to describe the stages of developing teaching materials, determine the validity and practicality of the teaching materials produced and…