Nearly 14 million species are estimated to exist on Earth, of which 1.8 million have been identified, and new species are being added to the world of science every day. Therefore, scientists are aware that there are still unidentified species living globally. Biodiversity is a wide concept encompassing all living things in our living space. This…

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…

Learning about the Earth through geoscience education is important in order to make informed decisions about the future of the Earth. The aim of this study is to examine students' conceptual development on geoscience subjects based on inquiry-based learning. 7th grade students participated in this study. The researcher prepared lesson plans and…

In this study, it was aimed to develop an achievement test taking into account the subject acquisitions of the sound and properties unit in the sixth-grade science course. In the test development phase, firstly, literature review for the study was conducted. Then, 30 multiple choice questions in align with the subject acquisition in the 2018…

The aim of this study is to examine the effect of the science module which was designed using the problem-based learning method on the basis of the Integrated Curriculum Model and applied in the blended learning environment on the scientific reasoning and scientific process skills of gifted students. The study was carried out with 9 gifted 5th…

The aim of this research is to determine the misconceptions of students about the subject of the moon and to examine the effects of science lesson with reflective science diaries on the achievements of students and eliminating their misconceptions. The research designed according to the pretest-posttest control group model among the experimental…

Educational researchers have been interested in studying teachers' professional identity to understand this dynamic and multifaceted construct within personal and professional processes through different experiences. In this study, we designed a qualitative case study with Cultural--Historical Activity Theory (CHAT) to examine physics teachers'…

This study aims to obtain and compare the opinions of exam question writers and teachers on skill-based exam questions. 24 science teachers and 11 context-based exam question writers participated in the study, which was carried out according to the convergent parallel design. Opinions of both parties on the skill-based exam questions were…

One of the main goals of science education is to make students gain science process skills. Thus, it is significant to measure whether students gain those skills or not. For this purpose, various tests have been produced and used in various studies. This study aims to examine science process skills tests which have been used in the theses produced…

This study focused on the relationships between teacher characteristics and students' mathematics achievement in EU countries, including Hungary, Italy, Lithuania, Malta, Slovenia, Sweden, and Turkey, which are the only EU countries participated in TIMSS 2015 at the eighth-grade level. The data consisted of the sample of 31,969 eighth-grade…

The purpose of this study is to examine the effect of missing data imputation methods, namely regression imputation (RI), multiple imputation (MI) and k-nearest neighbor (kNN) on differential item functioning (DIF). In this regard, the datasets used in the research were created by deleting some of the data via the missing completely at random…

Background: Research on chemistry education has found that students have commonly some difficulties in understanding chemical changes. These difficulties in the learning process have negatively affected students' success. For this reason, it is very important to overcome students' learning difficulties with new materials that prevent the…

This study investigated the effects of outdoor education on a 10th grade biology curriculum in terms of the knowledge, attitudes, and retention of students compared to indoor teaching. The quasi-experimental design included three groups: experiment (OE; N = 43), control-II (indoor teaching; N = 35), and control-I (no application; N = 35). A…

One of the most important problems of today's science education is the misconceptions and lack of knowledge that arise due to the science concepts not being learned in depth and meaningfully. For this reason, in this study, misconceptions, lack of knowledge, and scientific knowledge levels of science teachers about liquid pressure, which is one of…

This study revealed how the flipped learning model interacted with the learning styles of primary pre-service teachers. In addition, the impact of the flipped model on participants' science teaching course achievement and personal epistemologies was investigated. A mixed-method research design was conducted with 27 primary pre-service teachers…