Analogies are useful tools for teaching difficult scientific concepts and clearing up learners' misconceptions. However, if not properly used, they can lead to further misconceptions. More importantly, little is known about how science teachers use analogies in Nigerian classrooms. This study assessed science teachers' use of analogies by…

The goal of this study was to assess students' level of conceptual understanding of chemical kinetics and equilibrium using topic-specific pedagogical content knowledge (TSPCK)-based instruction in chemistry grade 11 students. The research was a mixed approach that involved 159 grade 11 chemistry class students from Addis Ababa administrative…

An exploratory study was to determine the effectiveness of discussion sessions as a teaching strategy of thermodynamics in basic physical chemistry of fundamental concepts in this area as spontaneity by explaining students according to their ideas. A previously validated questionnaire was used as an instrument on thermochemistry, enthalpies of…

This article reports on the development and piloting of a German version of a concept test to assess students' conceptual knowledge of density. The concept test was administered in paper-pencil format to 222 German secondary school students as a post-test after instruction in all relevant concepts of density. We provide a psychometric…

The main purpose of this study was to investigate the consistency of pictorial representations of the atomic structure drawn by students on the basis of particular quantum numbers' characteristics. Participants were 192 students of the 12th grade of secondary Greek schools. This study's instrument, a paper-and-pencil assessment tool, included four…

Dealing with students' conceptions is one of the central elements of student-oriented teaching. To be able to organize learning processes efficiently, it is necessary to look at the learners in a differentiated way and to approach their conceptions individually. The first necessary step is the individual diagnosis of each student's conceptions.…

This study investigated how modeling in chemistry affect second language learners' descriptions of polymeric concepts. The aim was to investigate how chemistry discussions mediated by representations, contribute to second language students' development in the language of chemistry. The study took place in three multilingual upper secondary…

Peer instruction (PI) involves interaction between students and provides opportunities for students to reveal their own ideas, articulate their thinking, and facilitate construction of their knowledge with social interaction. Since the classroom environment of PI provides a rich information for students to discuss scientific phenomena, this…

It is imperative that a profound transformation be carried out in the traditional way in which we teach science subjects, so it is necessary that the role of student change from being a mere recipient of information to being the main player in the construction of his knowledge. One of the strategies to achieve this is to make use of ICT, within…

This study was conducted to determine the differences in the conceptual understanding of 52 Turkish students who were taught with a scientific argumentation approach in grade 12 chemistry. The concept test was administered to the participants as a pre-test and post-test, and it contained two questions. The first had two sub-questions had two…

A study on the misconceptions developed or held by teachers related to the two terms valence and valency was undertaken. A total of 48 teachers (26 males and 22 females) teaching the chemistry component of science subject to 14-16-year-old students, in 48 schools affiliated to one district, were randomly selected for the study by taking one…

Ecological knowledge is one of the components of environmental literacy that refers to the ability of people to understand and apply acquired knowledge about ecology to achieve a grasp of how nature works and their interactions with the social system. This study aimed to determine pre-service science teachers' level of ecological knowledge in Cebu…

The present study investigated the association of students' fundamental ideas and misconceptions about ontological features of atom identity and behavior with the formation of their portrayed representations of the atomic structure. Participants (n = 421) were secondary education students in the eighth, tenth, and twelfth grades. Students'…

This study aimed to determine the extent of pre-service science teachers' (PTS) process and materialistic understanding of sound concept and the role of their task value beliefs in their scientific conception of sound. With this aim, the Sound Concept Inventory Instrument (SCII) was translated and adapted to Turkish. The SCII was administered to…

For abstract concepts to be well understood, students need to be familiar with the concepts and able to associate them correctly. Students cannot make scientific explanations on the subject unless they can establish relationships. This study aimed to determine the understanding level of 11th-grade high school students on "gases" in terms…