The purpose of this research is to examine the effects of engineering design-based activities carried out in the sixth-grade Matter and Heat unit on the problem-solving skills of students, and the changes in the designing skills of students during these activities. This research, conducted by following the one-group pre-test -- post-test…

One of the obstacles that occur in Chemistry learning is low student motivation due to monotonous media. Another thing that currently becomes an obstacle is the COVID-19 pandemic which limits face-to-face learning. However, Chemistry practicum learning in the laboratory is difficult to carry out at students' homes. The purpose of the study is to…

The learning process with modern technology is an absolute requirement in the digital age. As a science subject with unique characteristics, biology also requires a unique and technology-based learning process. Flipped Classroom--Digital Game-Based Learning (FC-DGBL) is a learning model that combines flipped classrooms and evaluations using…

The study used the TPACK (Technological Pedagogical Content Knowledge) framework to determine the STEM (Science Technology Engineering Mathematics) teachers' experiences and practices. Data were sourced through interviews, classroom observations and document analysis from purposively selected 106 STEM teachers (from randomly identified…

When students were exposed to cognitive conflict and 5E teaching models, this study looked at the impact of cognitive ability on their conceptual change in the particulate nature of matter in physics. With a sample of 195 first-year upper secondary school students, the study used a quasi-experimental design with non-equivalent groups. The data…

This study investigated pedagogical implication of spatial visualization as correlate of students' achievement in physics. Ex post facto research of the co-relational type with 857 senior secondary school three (S. S. 3) participants comprising of male and female students from both public and private-schools from Kwara State, Nigeria. Four…

In the 21st century, individuals are expected to be scientifically literate and develop themselves in this direction. However, wrong judgments about self-competence, such as overconfidence, can cause mistakes in the process of solving problems related to science and technology and prevent making the right decisions. This situation, known as the…

This study aims to explore the mental models of students about suspending objects in liquid fluid. The study used a descriptive qualitative method and implemented cross-sectional approach. It involved 57 students from grade 5 of elementary school to fourth-year prospective physics teachers. The data collection used a test consisting of twenty-six…

The Zero Waste Project is likely to solve waste problems. This research aims to specify the opinions of teachers regarding Turkey's Zero Waste Project (TZWP). This study was carried out in the 2019-2020 academic year, with 126 participating teachers working in various disciplines, such as science, math, and social sciences, in the primary and…

The study using quasi experimental design involving 160 pre-university students, randomly assigned into experimental (n=80) and control groups (n=80), revealed science writing heuristics approach improved pre-university students' understanding of energy transfer in ecosystems and ability to produce quality arguments. After controlling the pretest…

Design-based learning has been recognized by educational scholars as the key approach to science, technology, engineering, and mathematics (STEM) education at K-12 levels. However, it is unclear whether, and which dimensions of, design thinking mindsets support the conceptual learning of science. This quasi-experimental study aims to explore 37…

Education is considered to be one of the key tools for addressing sustainable environmental conservation while balancing sustainable socio-economic development to achieve Gross National Happiness in Bhutan. The Environmental Science subject was introduced to prepare students with knowledge, values, and skills to address sustainability. This study…

Assessment of problem-solving skills for preservice teachers is important in science instruction. The purpose of this study is to discover; (a) How are the characteristics of the Problem-Solving Essay Test Instrument (PSETI); (b) How is the validity based on experts assessment; (c) how are the validity and reliability based on trials. The research…

In this paper, we described the development of the High School Wave Optics Test (HSWOT). Firstly, 56 conceptual, multiple-choice items with a single correct answer and three distractors were created. Next, we conducted an initial review of the items which resulted in reducing the item pool to 44 highest quality items. Validity evidence and…

In this study, the effects of context-based teaching (CBT) on the teaching of 'chemical change unit' (CCU) was examined under five main headings: student motivation, constructivist learning environment, student achievement, transferring chemistry knowledge to the subjects of daily life, and student and teachers' opinions on the implementation. The…