Background and Purpose: Sleep is an important determinant of health in adolescence, but many adolescents around the world are sleep-deprived. Compared to children and adults, getting enough sleep is especially challenging for adolescents due to the natural alteration of circadian rhythms that govern sleep-wake cycles. The delayed circadian rhythm…

Background: Creativity is one of the key competencies for the talent of the 21st century to meet future challenges in a complex world. It is also an innovative basis for students to discover and pose questions. Purpose: This study aimed to explore which two interventions of the problem-oriented teaching model, teacher-guided problem finding (TGPF)…

This study aims to analyze the effectiveness of learning materials oriented on problem-based learning models, the improvement mathematical problem solving ability and students' metacognition ability. Learning materials that developed are lesson plan, student book, student worksheet, mathematical problem solving ability and students' metacognition…

Proper understanding of and learning from physics phenomena and experiments requires--among other competencies--flexible and coherent use of multiple representations (MRs). These can include everything from the "enactive" or "operational" manipulation of the experimental devices and materials to the most abstract level of a…

Sustainability awareness is one of the things that the student should have to help in a caring environment. Sustainability awareness of the student can be built by knowledge and awareness of what should be done or not. The student will be more aware of the students involved and explore more in building a concept about the environmental issue…

A growing body of correlational research finds a relationship between self-efficacy--beliefs in one's capabilities--and academic success. But few studies have investigated whether self-efficacy is causally related to academic success. We hypothesized that an experience of success would promote self-efficacy in junior high school students and would…

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…

The aim of this study was to examine effectiveness of applying learning together (LT) method at different intervals on improvement of middle school students' academic success and science process skills. The sample of study consisted of 117 sixth and seventh grade students in two public middle schools. In this study, the "Solomon Experimental…

The university aims to form professionals through transmission and dissemination of knowledge, therefore, the Extension, as a tool of the universities, has a major role contributing to improvements in the learning and teaching process. The Extension projects are extremely important for The Federal Technological University of Paraná (UTFPR), since…

This study investigates the effects of a scientific literacy strategy which focuses on reading, writing, talking and doing science on the development of grade six and seven learners' general literacy skills, both in their home language (isiXhosa) and the language of classroom instruction (English). A mixed method design was used. Quantitative data…