Informal statistical reasoning, a fundamental aspect of statistical reasoning, involves students' logical processing of random data to extract meaningful insights. Enhancing this skill is crucial for helping students interpret and address statistical problems within their cultural and contextual frameworks. Activity-centered learning, particularly…

This research aims to develop open ended-based worksheet in improving students' high-level thinking skills on static fluid materials. The method used in this research is Research and Development (R&D) with 3 steps namely, the initial stage, then the design and development of the product, and finally the product testing. The data analysis…

Creative thinking ability can be trained to students during learning process using suitable learning materials. The purpose of this study was to produce a valid and practical student worksheet based on iMindMap in Animalia topic to train students' creative thinking ability. This R & D referred to 4D model (define, design, develop, and…

This research is a research and development which produces teaching materials. The research method consists of stages, namely: an introduction (literature study, observation, and interviews), product development of teaching materials, test by a team of experts, and restricted trial to the eleventh-grade students of senior high school in Cimahi,…

This study is carried out to develop an interactive multimedia learning aid that increases students' competency in practicing electrical motor installation. Students of Public Vocational High School in Langkat, Indonesia involve in this study. The Research and Development (R&D) methodology by Borg and Gall (1998) is adapted in this study, in…

English, particularly regarding a foreign language teachers' professional development, has been studied in depth. However, it is not known how Iranian English as a foreign language teachers perceive continuing professional development. This study explored the perceptions of Iranian English as a foreign language teachers of continuing professional…

As college deadlines loom, teachers may wonder if there is a magic portfolio formula for their students to follow. After twenty years of thought on portfolio development and the opportunity to review over 10,000 individual portfolios, the author is convinced that there is no single formula for success. With hard work, careful planning, and…