Nitrate is a crucial parameter for assessing water quality, owing to its dual function in ecological systems. These functions can be beneficial or detrimental depending on whether nitrate concentrations are low or high, respectively. The ultraviolet spectrophotometric method (standard as 4500-NO[subscript 3]--B) is a classic method for determining…

Ability to adequately analyze educational situations is essential not only for (pre-service) teachers' occupational decisions, but also for their own professional development. This study represents an evaluation of the observation practice aimed at pre-service chemistry teachers' (N = 12) professional vision development. They attended chemistry…

The aim of the study was to determine the correlations between preservice science teachers' beliefs about the nature of science and their scientific inquiry and communication skills. The study group of the research was composed of 329 pre-service science teachers who are studying at Aydin Adnan Menderes and Mugla Universities of Turkey during the…

In this study, we aimed to determine the effects of Web 2.0 animation tools for science education on 4th-graders' academic achievements and basic skills, as well as their attitudes and motivations towards science courses. The study was designed with pretest-posttest control group quasi-experimental pattern. The sample consisted of 4th-grade…

Background: The recommendation from national documents and reports to promote inquiry-related science activities has not been supported by recent studies, which have found the overall frequency of inquiry activities to be negatively associated with student learning outcomes. This study was inspired by such conflicting reports and aimed to clarify…

We describe the development, design, implementation, and preliminary classroom results of an innovative curriculum, "Focus on Energy," that supports learning about energy in Grades 4-5. The curriculum is grounded in the concepts of science as practice, model-based reasoning, and learning progressions, and builds on students' pre-existing…

Facilitating discussions is a key approach that science teachers use to engage students in scientific argumentation. However, learning how to facilitate argumentation-focused discussions is an ambitious teaching practice that can be difficult to learn how to do well, especially for preservice teachers (PSTs) who typically have limited…

Modeling, which is the process of constructing, testing, and refining models, is an important skill in experimental physics, and thus a learning goal of many physics laboratory classes. One promising approach to help students develop modeling skills is to incorporate multiweek student-designed projects into lab courses. In order to assess the…

Cartoons are an effective alternative to create a rich learning environment that is visually and audibly equipped for students in an effective science education. It is of upmost significant for science teachers to possess the necessary knowledge, activity experience and equipment in order to carry out a qualified science teaching. Therefore, the…

The purpose of this research is to examine the impact of activities based on scientific process skills on problem-solving skills of 4th grade students in science lessons. In the study a non-equivalent control group pre-test and post-test design type of quasi-experimental method was used. The research study group was composed of 30 students with 15…

The evolving digital world requires scientifically literate citizens who are able to critically evaluate Internet sources of varying credibility. Instruction on evidence evaluation in postsecondary education often focuses on peer-review as a singular indicator of credibility. With increased access to web-based scientific information, students must…

Experience in research facilitates development of science identity and encourages undergraduate student persistence along the pathway to careers in science, technology, engineering, and math (STEM). Participation in authentic research can foster identity development by influencing a sense of belonging, recognition, interest, and performance and…

Inquiry practices can be integrated into various settings that differ in terms of their constraints and hence in the scope and depth of the practices that students experience. Key policy papers suggest implementing a gradual learning sequence for inquiry practices so that students' learning experiences in more constrained settings can serve them…

This study aimed to develop alternative laboratory experiments (ALEs) in Chemistry 8 and evaluate the perceived improvement of the students' basic science process skills after utilizing the material. This employed a mixed method of research. Initially, a self-assessment survey questionnaire was used to determine the basic science process skills of…

The laboratory course in organic chemistry for preservice chemistry teachers has been designed anew. For the course, only 2 weeks (8 h a day) are available. Therefore, we wanted to use this time effectively, which led to the following main goals: the students should achieve practical skills, understand the practical procedures they had to conduct,…