This study aims to evaluate students' ability to process the context information embedded in chemistry problems. To achieve this goal, a diagnostic measurement instrument was developed, comprising 28 short-answer items embedded in seven context-based chemistry tasks. Four hundred and ninety-three ninth-graders took part in the testing in Jiangsu,…

Argumentation as a scientific practice has largely been examined along an epistemic and/or dialogic perspective in science education research. Both perspectives have sidelined the use of real material objects that are indispensable for scientists to construct arguments about the natural world. To address this gap, this article investigates how…

Students' academic performance in chemistry can be the result of a number of cognitive and affective factors. This study explored the influence of the discipline-specific cognitive factors of knowledge structure, cognitive perspectives, and cognitive patterns on grade 9 students' chemistry performance. One instrument measured chemistry academic…

Teaching strategies play a vital role in improving learners' performance. This study investigated the effect of Guided Discovery Instructional Strategy (GDIS) on Grade nine learners' performance in chemical reactions and determined the effect of GDIS on gender. A quasi-experimental design with a sample comprising 75 grade nine learners was…

The main aim of this study was to investigate the effect of inquiry-based laboratory instruction on ninth grade students' scientific inquiry views. In this study an argument driven inquiry approach to laboratory instruction was used to teach a Chemistry lesson where the nature of the aspects of scientific inquiry was explicitly taught. This…

The aim of this study is to examine the views of ninth grade students about 5E-based STEM learning strategies in the atomic and periodic system unit. The research was carried out with phenomenology which is one of the qualitative research designs. Purposive sampling was used and eight students participated in the study. The data was collected…

In this quasi-experimental research, the effect of the inquiry-based 5E instruction on students' learning of the topic of the main subatomic particles forming the atom as well as on their level of motivation was examined. The sample for the study comprised 45 ninth grade students enrolled in two randomly selected classes at a public high school…

A five-day discovery-based summer workshop for incoming ninth graders was designed and conducted at the University of Cincinnati (UC). The idea was to have an inquiry-based, research-driven laboratory experience where students were provided with a mentor who encouraged creativity and inquisitiveness. Over a period of three years, 33 students…

Background: Video lectures which include the teachers' presence have become increasingly common. As teacher enthusiasm is a nonverbal cue in video lectures, more and more studies are focusing on this topic. However, little research has been carried out on the interactions between teacher enthusiasm and prior knowledge when learning from video…

The study was conducted at a vocational high school in Ankara during the academic year of 2018-2019 based on the key concepts regarding the units in the chemistry curriculum for 9th grade. The purpose of the study was to investigate whether 9th grade students recognized the key concepts in chemistry units of first and second semester, and how…

The aim of this study is to taxonomically analyse the 9th grade Turkish chemistry curriculum. A descriptive analysis method is used throughout the study. The document analysis is applied as a method to construct the codes and themes to reflect the results of the study. The results of the study exhibit that most of learning outcomes of the 9th…

The purpose of this study is to determine the distribution of talented students' course achievements in the fields of mathematics and science, according to the learning styles. General screening method was used in this research. The universe of the research consists of Ninth grade students (2016-2017) who study at Bornova Anatolian High School.…

This study explores the effect of video-based instruction on the safety rules in the chemistry laboratory on student achievement. The sample for the study comprised 61 ninth grade students enrolled in two different classes at a public high school. The students in the class designated as the experimental group (N = 32) were given video-based…

This study was carried out with a total of 75 students attending 9th grade in two high schools affiliated to the Ministry of National Education in Reyhanli district, which hosted many Syrian refugees in Hatay province in the spring semester of 2018-2019 academic years and lasted for three weeks. A total of 75 students, 43 from two different 9th…

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…