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The purpose of this quantitative study was to determine the effectiveness of blended learning within the context of a science education methods course for early childhood elementary preservice teachers in Turkey. Elementary teachers historically fear science and avoid using it in their classes. This course was blended to allow the students to experience active science learning during face to face sessions. Student perceptions about their experiences in a blended methods course were collected using a previously validated survey. The data analysis of the post-test only survey research design demonstrated that students’ perceptions were positive towards the use of blended learning within their science education methods course. However, the analysis determined that students felt that certain technical aspects of the blended learning environment hindered their learning.

International assessments have revealed that students in numerous nations lack scientific reasoning skills. Science teachers who support students’ scientific skill development through the use of authentic practices provide students with tools needed for success in future science courses. Teachers training focused on pedagogy that supports student scientific reasoning development is particularly important as some studies have also suggested that pre-service teachers have a tendency to display a lack of scientific reasoning skills. Additionally, few studies exist that assess teachers’ scientific reasoning skills, including the effectiveness of professional development to strengthen teacher scientific reasoning abilities over time. To help fill this gap, this study examines the effects of a Modeling Instruction in a biology workshop on teachers’ scientific reasoning skills. In addition to teacher interviews, focus groups, and writing samples, data from Lawson’s Classroom Test of Scientific Reasoning (LCTSR) were collected from teachers before and after the workshop. The results suggest that the three-week Modeling Instruction in the biology workshop contributed to gains in in-service teachers’ scientific reasoning, and thus provides evidence that the teachers in this study are more prepared to help develop similar skills with their own students as they engage in the Modeling Instruction curriculum.

The modeling instruction pedagogy for the teaching of physics has been proven to be quite effective at increasing the conceptual understanding and problem-solving abilities of students to a much greater extent than that of nonmodeling students. Little research has been conducted concerning the cognitive and metacognitive skills that modeling students develop that allow for these increases. Two studies were designed to answer the following question: In what ways do the knowledge structures, metacognitive skills, and problem-solving abilities differ between modeling and nonmodeling students? In study 1, the knowledge structures developed by two groups of high school physics students taught using differing pedagogies (modeling instruction in physics and traditional methods) were determined using a card-sort task. The student’s knowledge structures were then correlated with the scores they obtained on two measures: the force concept inventory (FCI) and a problem-solving task (PS task) developed for this study. The modeling students had a more expertlike knowledge structure, while the nonmodeling students produced structures that were novicelike. In addition, the expert score correlated highly with performance on both the FCI and PS task scores demonstrating that a higher expert score predicted a higher value on each of these measures while a higher surface feature score predicted a lower score on both of these measures. In study 2, a verbal protocol design allowed for a detailed study of the problem-solving and metacognitive skills utilized by the two groups. It was determined that the skills utilized by the modeling instruction students were more expertlike. In addition, the modeling students produced significantly fewer physics errors while catching and repairing a greater percentage of their errors.

Although there has been previous research concerning the use of drama in science education, a comprehensive review has not been completed over the past 20 years. The current article explores this topic in greater depth by focusing only on empirical-based peer-reviewed research studies that detail the use of drama in the science classroom between 2000 and 2020. The question remains: does incorporating drama into science teaching improve student understanding? Twenty empirical studies were reviewed focusing on students as active participants in drama interventions in PK-12 classrooms. The studies were analyzed according to available demographic data (e.g., grade levels, science topics, geographic distribution), research designs, type and duration of drama interventions, use of epistemic practices, and empirical results (e.g., science skills, content knowledge change, epistemic practices). The reviewed studies revealed that no matter the grade level, drama in science has a positive benefit for students in terms of attitudes toward science and improving conceptual knowledge. Integrating drama into science offers a possible way of improving interest in choosing a science major. Based on the review's findings, conclusions and recommendations for future research are offered.

The focus of this qualitative phenomenological case study was on a recent nationwide reform in Kazakhstani secondary education which included systemwide modifications in content, instruction, and criterion-based assessment (CBA). The research aim was to gain insights into the CBA implementation process through teachers’ perspectives and experiences, as they are the key players of the reform. The research question was: What are mainstream schoolteachers’ perspectives on and experiences with criteria-based assessment? It was found that reform implementation was a process with mixed outcomes and was dependent on teachers' perspectives and experiences regarding new assessment practices that were affected continuously by many factors such as openness to changes, professional development programs, and teaching practices. Teachers demonstrated a lack of confidence with some specific CBA tools which still raise issues in their classrooms. The pace of the reform introduction and curriculum inconsistencies were other concerns of mainstream schoolteachers. Nevertheless, the majority of participants have recognized the benefits of CBA and seen the first promising results in their practice. The findings imply that special attention should be given to more experienced teachers during educational reforms due to their possible resistance towards reforms. In addition, a well-planned professional development strategy with a focus not only on developing teachers' knowledge and skills but also on their attitude towards the changes should be considered.

The National Research Council framework for science education and the Next Generation Science Standards have developed a need for additional research and development of curricula that is both technologically model-based and includes engineering practices. This is especially the case for biology education. This paper describes a quasi-experimental design study to test the effectiveness of a model-based curriculum focused on the concepts of natural selection and population ecology that makes use of Excel modeling tools (Modeling Instruction in Biology with Excel, MBI-E). The curriculum revolves around the bio-engineering practice of controlling an invasive species. The study takes place in the Midwest within ten high schools teaching a regular-level introductory biology class. A post-test was designed that targeted a number of common misconceptions in both concept areas as well as representational usage. The results of a posttest demonstrate that the MBI-E students significantly outperformed the traditional classes in both natural selection and population ecology concepts, thus overcoming a number of misconceptions. In addition, implementing students made use of more multiple representations as well as demonstrating greater fascination for science.

This explanatory sequential mixed-method study explored the effectiveness of blended learning (BL) courses offered to graduate students at an English medium university in Kazakhstan. The study’s purpose was to explore and understand graduate students’ experiences while enrolled in BL courses by learning their perceptions of the benefits and challenges of BL, as well as its potential for enhancing their teacher leadership skills. A survey (n=81) and semi-structured individual interviews (n=17) were used as the main research instruments. This allowed for a detailed and rich data set on the conceptual underpinnings of the BL courses, their effectiveness, and their potential to inform higher education institutions towards implementing BL policies and practices, specifically in the field of education. Through the lens of the Interaction equivalency theorem, we analyzed students’ experiences and their interactions with their teachers and peers, as well as the mode, place, and pace of learning. This investigation revealed that the benefits of learning using BL outweighed its challenges. However, most of the participants preferred the face-to-face part of the BL course over its online teacher-student interaction component due to the opportunity to gain immediate feedback. Most importantly, the BL courses facilitated the enhancement of teacher leadership skills among the students. Finally, the paper provides recommendations for further development and revisions to current BL courses to enhance their learning value.

Instruments for assessing secondary students’ conceptual understanding of core concepts in biology are needed by educational practitioners and researchers alike. Most instruments available for secondary biology (years 9 to 12) focus only on highly specific biological concepts instead of multiple core concepts. This study describes the development of a 25-item instrument designed to fill this gap, the High School Biology Concept Inventory (HS-BCI). The HS-BCI not only assesses student knowledge of key biological concepts but also alternative conceptions. Using Rasch theory, the initial instrument was constructed from a pool of 61 instrument items using test results from 1015 students. The final 25-item instrument was validated with 1955 students. The results provide reliability and validity evidence for the HS-BCI. The findings suggest that it can be utilized to assess both conceptual knowledge and alternative conceptions.

Increased attention on the implementation of engineering education into elementary school classrooms aims to start preparing students early for potential engineering careers. In order to efficiently and effectively add engineering concepts to the curriculum, appropriate development and facilitation of engineering design challenges are required. Therefore, professional development programs are necessary to educate teachers about engineering and how to adequately teach it. This paper explores the effects of an engineering professional development program for practicing teachers. The program included training elementary teachers about how to implement units from Engineering is Elementary (EiE) by the Science Museum of Boston into their classes. Semi-structured focus group interviews were conducted, both prior to and following the implementation of the EiE units over an academic year. The interviews were transcribed and coded using open-coding, resulting in the development of a codebook. The codes were further analyzed until salient themes emerged that can be used to improve the training and better understand how teachers integrate engineering into their classrooms. The results show that many teachers need training to learn about engineering practices, as well as pedagogical guidance on how to incorporate engineering concepts into their lessons. However, not surprisingly, limited resources such as time, money, materials, and knowledge restrict efficient curricula implementation. We believe these findings reemphasize the need for science, technology, engineering, and mathematics professional development programs to educate K-12 teachers about engineering and will be useful to others interested in integrating engineering into K-12 curricula.

This randomized, noninferiority trial compared ketamine with electroconvulsive therapy in treatment-resistant depression. Ketamine was noninferior to ECT for treatment-resistant depression without psychosis.