The purpose of this research was to develop a valid, practice and effective a bilingual scientific-worksheet of the indefinite integrals. This research is development research with 1) Preliminary investigation phase, 2) Prototyping phase, 3) Assessment phase. Data were collected from test and questionnaire and analyzed to examine validity,…

Rigorous and responsive science teaching is based on supporting all students in making progress in their understanding of important science ideas over time. In this article, we explore how did classroom talk patterns of funneling and focusing support student sensemaking. We share how talk, tasks, and tools within classroom activity work together…

Children are captivated with how things work and they like to build things and in many ways, engineering comes naturally for them. Progress does not come from technology alone but from the melding of technology and creative thinking through art and design. There has been a push for STEAM-based curricula to be included in science classrooms and the…

Propagation of sound waves is one of the fundamental concepts in physics. Some of the properties of sound propagation such as attenuation of sound intensity with increasing distance are familiar to everybody from the experiences of daily life. However, the frequency dependence of sound propagation and the effect of acoustics in confined…

Environmental Health (EH) is an essential profession for protecting human health and yet as a discipline it is under-recognised, overlooked and misunderstood. Too few students undertake EH studies, culminating in a dearth of qualified Environmental Health Officers (EHOs) in Australia. A major deterrent to students enrolling in EH courses is a lack…

We use analogies to provide introductory laboratory students intuition into measurement uncertainties. Using a battery-resistor circuit we discuss uncertainty concepts and derive expressions for uncertainty of the mean and sums of uncertainties. Finally, we draw attention to the fact that the interpretation of standard deviation as uncertainty…

Zero-order systems provide an interesting opportunity for students to think about the underlying mechanism behind the physical phenomena being modeled. The work reported here is part of a larger study that seeks to characterize how students integrate chemistry and mathematics in the context of chemical kinetics. Thirty-six general chemistry…

A classical nonlinear system, the "Brusselator", was used to illustrate the modeling and simulation of oscillating chemical systems using stability analysis techniques with modern software tools such as Comsol Multiphysics, Matlab, and Excel. A systematic approach is proposed in order to establish a regime of parametric conditions that…

This study aims to reveal the metaphorical perceptions related to the concept of Science and Art Center (SAC,) which is a state institution where the gifted students in Turkey receive support for their education. For this purpose, gifted students were asked to produce metaphors about SAC concepts. The participants of the research are 59 students…

The aim of this study is to investigate primary student teachers' drawings of the human internal organs, e.g. location, size and presence of organs (heart, lungs, stomach, liver, kidneys, pancreas and intestines etc.) This research was conducted with 104 primary teacher candidates studying in the Faculty of Education at Trakya University during…

This study aims to conduct a detailed investigation on the effect the use of concept mapping, as an individual learning tool, has on students' success in learning the concept of gravimetric analysis. This study applies a case study research design to quantitatively examine the effect of the use of concept mapping and to conduct a detailed…

How do secondary school science teachers justify the model of a particulate nature of matter, and how do the arguments they use relate to historical arguments? To find out, we individually interviewed 11 in-service secondary school science teachers (certified to teach chemistry and/or physics in secondary school, and with 2 to 30 years of teaching…

Energy is a difficult concept to be understood by students of all levels. Thus, the aim of the study is to determine how high school students at different levels perceive the energy and related concepts. In line with this purpose, 173 students in total of which 57 ones of the 9th grade, 94 ones of the 10th grade and 22 ones of the 11th grade…

This study investigates how students account for a macroscopic temperature change during the dissolution of ionic salts through particulate level explanations. Semi-structured interviews were conducted with general chemistry, physical chemistry, and biophysical chemistry students. During the interviews, students conducted hands-on tasks that…

The purpose of this study was to uncover pre-service science teachers' images and misconceptions regarding atomic orbital and self-ionization concepts. This study involved a total of 68 pre-service science teachers working at a public university during the 2015-2016 academic year. In this qualitative study, data were collated with the use of…