Fostering critical thinking, reasoning, and argumentation skills through bioethics education

Developing a position on a socio-scientific issue and defending it using a well-reasoned justification involves complex cognitive skills that are challenging to both teach and assess. Our work centers on instructional strategies for fostering critical thinking skills in high school students using bioethical case studies, decision-making frameworks, and structured analysis tools to scaffold student argumentation. In this study, we examined the effects of our teacher professional development and curricular materials on the ability of high school students to analyze a bioethical case study and develop a strong position. We focused on student ability to identify an ethical question, consider stakeholders and their values, incorporate relevant scientific facts and content, address ethical principles, and consider the strengths and weaknesses of alternate solutions. 431 students and 12 teachers participated in a research study using teacher cohorts for comparison purposes. The first cohort received professional development and used the curriculum with their students; the second did not receive professional development until after their participation in the study and did not use the curriculum. In order to assess the acquisition of higher-order justification skills, students were asked to analyze a case study and develop a well-reasoned written position. We evaluated statements using a scoring rubric and found highly significant differences (p<0.001) between students exposed to the curriculum strategies and those who were not. Students also showed highly significant gains (p<0.001) in self-reported interest in science content, ability to analyze socio-scientific issues, awareness of ethical issues, ability to listen to and discuss viewpoints different from their own, and understanding of the relationship between science and society. Our results demonstrate that incorporating ethical dilemmas into the classroom is one strategy for increasing student motivation and engagement with science content, while promoting reasoning and justification skills that help prepare an informed citizenry.     

Assessing Psychopathology in American Indian and Alaska Native Children and Adolescents

The purpose of this study was to investigate a) the relations between different types of civic behaviors and middle school students' perceptions of school climate, and b) the compositional effects of student civic engagement on setting-level school climate perceptions. Using a sample of 4,073 students in 11 public schools from a southeastern state, multilevel regression analyses found that, in general, civic behaviors were positively associated with school climate outcomes at the individual and setting level. However, certain types of civic behavior were negatively associated with desired school climate outcomes at both levels. These findings suggest a complicated relationship between student civic engagement and school climate, and imply that schools and adult leaders may need to carefully consider the types of opportunities for civic engagement provided to students.     

Developing Children’s Observation Skills Using a Fractal Pattern from Nature

Abstract

This study aimed to support the development of the scientific observation skills of children at an early age using a pattern selected from nearby nature. For this purpose, a simple, innovative and authentic observation activity was designed using thorny burnet (Sarcopoterium spinosum L.), a plant unique to the Mediterranean region. The activity was conducted in a preschool institution with six-year-old children in the class hours of a weekly science course in three different environments (in-class, out-of-class, and out-of-school), and seven stages. In this activity, which aimed to transform children’s natural/spontaneous observation skills into scientific observation skills, patterns were revealed through systematic and sequential observation and drawings. At the end of the activity, it was found that the children had developed skills related to breaking a whole into its parts and putting the parts together according to patterns, making detailed observations, and systematic data collection, and they successfully implemented these skills outside the classroom and school.     

Hands-on or Video-based Learning with ANTicipation? A Comparative Approach to Identifying Student Motivation and Learning Enjoyment During a Lesson about Ants

The observation of living animals in school laboratories provides authentic views of biological research. Various studies stress the importance of primary experiences in biology classes. However, educational films may serve as an alternative in some cases. The aim of this study was to investigate student motivation before and after treatments, including (1) an educational film, (2) a hands-on activity with living animals accompanied by an educational film and (3) a hands-on activity with living animals. We investigated the influence of teaching method, gender and class level on student motivation and learning enjoyment. In all treatments, Temnothorax ants were addressed, which can be easily kept and observed. This paper is within the scope of a longitudinal project based on the concept of ‘ant research’ in class. Students (N = 140) from six classes (lower and intermediate secondary school levels) participated in the study. Student motivation was measured using a two-stage test design, including a standardised questionnaire on current motivation and a test on learning enjoyment. The findings of this study suggest that the younger students prefer hands-on activities, while students at an intermediate secondary school level are more interested in video-based learning. Since the combination of hands-on activity and video yielded the best results, the potential of using videos as facilitators for hands-on learning is discussed.     

The history of ranges of the great tit (<Emphasis Type="Italic">Parus major</Emphasis>) and Japanese tit (<Emphasis Type="Italic">Parus minor</Emphasis>) in the Amur Region

The history of ranges of the great tit (Parus major) and Japanese tit (P. minor) in the Amur River basin is described on the basis of original data collected between 1970 and 2010 and published data. The main factor accounting for the expansion of the great and Japanese tits to the Amur basin and neighboring territories in the 19th to 21st centuries is economic activity, primarily agriculture and timber harvesting. The approximate range boundaries and the sympatry zone of these two species have been determined for the second half of the 19th century; the beginning, middle, and third quarter of the 20th century; and the turn of the 21st century. Three different ecological channels consecutively played the main role in the eastward expansion of the great tit: the Amur River valley (from the mid-19th to the early 20th century), the Trans-Siberian Railroad (since the early 20th century), and the Baikal-Amur Railroad (since the 1970s). It is shown that the concept concerning the finding of great tits in Udskii Ostrog by Middendorff’s expedition is erroneous: according to dates on the labels, the corresponding two specimens were in fact collected in a different geographic locality. It has been found that Komsomolsk-on-Amur is a new locality jointly inhabited by both species, independent of the main zone of their sympatry. It has appeared very recently, at the turn of the 21st century.     

Using a high-fidelity patient simulator with first-year medical students to facilitate learning of cardiovascular function curves

Students are relying on technology for learning more than ever, and educators need to adapt to facilitate student learning. High-fidelity patient simulators (HFPS) are usually reserved for the clinical years of medical education and are geared to improve clinical decision skills, teamwork, and patient safety. Finding ways to incorporate HFPS into preclinical medical education represents more of a challenge, and there is limited literature regarding its implementation. The main objective of this study was to implement a HFPS activity into a problem-based curriculum to enhance the learning of basic sciences. More specifically, the focus was to aid in student learning of cardiovascular function curves and help students develop heart failure treatment strategies based on basic cardiovascular physiology concepts. Pretests and posttests, along with student surveys, were used to determine student knowledge and perception of learning in two first-year medical school classes. There was an increase of 21% and 22% in the percentage of students achieving correct answers on a posttest compared with their pretest score. The median number of correct questions increased from pretest scores of 2 and 2.5 to posttest scores of 4 and 5 of a possible total of 6 in each respective year. Student survey data showed agreement that the activity aided in learning. This study suggests that a HFPS activity can be implemented during the preclinical years of medical education to address basic science concepts. Additionally, it suggests that student learning of cardiovascular function curves and heart failure strategies are facilitated.     

An international basic science and clinical research summer program for medical students

An important part of training the next generation of physicians is ensuring that they are exposed to the integral role that research plays in improving medical treatment. However, medical students often do not have sufficient time to be trained to carry out any projects in biomedical and clinical research. Many medical students also fail to understand and grasp translational research as an important concept today. In addition, since medical training is often an international affair whereby a medical student/resident/fellow will likely train in many different countries during his/her early training years, it is important to provide a learning environment whereby a young medical student experiences the unique challenges and value of an international educational experience. This article describes a program that bridges the gap between the basic and clinical research concepts in a unique international educational experience. After completing two semester curricula at Alfaisal University in Riyadh, Kingdom of Saudi Arabia, six medical students undertook a summer program at St. Boniface Hospital Research Centre, in Winnipeg, MB, Canada. The program lasted for 2 mo and addressed advanced training in basic science research topics in medicine such as cell isolation, functional assessment, and molecular techniques of analysis and manipulation as well as sessions on the conduct of clinical research trials, ethics, and intellectual property management. Programs such as these are essential to provide a base from which medical students can decide if research is an attractive career choice for them during their clinical practice in subsequent years. An innovative international summer research course for medical students is necessary to cater to the needs of the medical students in the 21st century.     

Tailoring science outreach through E-matching using a community-based participatory approach

In an effort to increase science exposure for pre-college (K-12) students and as part of the science education reform agenda, many biomedical research institutions have established university-community partnerships. Typically, these science outreach programs consist of pre-structured, generic exposure for students, with little community engagement. However, the use of a medium that is accessible to both teachers and scientists, electronic web-based matchmaking (E-matching) provides an opportunity for tailored outreach utilizing a community-based participatory approach (CBPA), which involves all stakeholders in the planning and implementation of the science outreach based on the interests of teachers/students and scientists. E-matching is a timely and urgent endeavor that provides a rapid connection for science engagement between teachers/students and experts in an effort to fill the science outreach gap. National Lab Network (formerly National Lab Day), an ongoing initiative to increase science equity and literacy, provides a model for engaging the public in science via an E-matching and hands-on learning approach. We argue that science outreach should be a dynamic endeavor that changes according to the needs of a target school. We will describe a case study of a tailored science outreach activity in which a public school that serves mostly under-represented minority students from disadvantaged backgrounds were E-matched with a university, and subsequently became equal partners in the development of the science outreach plan. In addition, we will show how global science outreach endeavors may utilize a CBPA, like E-matching, to support a pipeline to science among under-represented minority students and students from disadvantaged backgrounds. By merging the CBPA concept with a practical case example, we hope to inform science outreach practices via the lens of a tailored E-matching approach.     

Undergraduate structural biology education: A shift from users to developers of computation and simulation tools

The use of theory and simulation in undergraduate education in biochemistry, molecular biology, and structural biology is now common, but the skills students need and the curriculum instructors have to train their students are evolving. The global pandemic and the immediate switch to remote instruction forced instructors to reconsider how they can use computation to teach concepts previously approached with other instructional methods. In this review, we survey some of the curricula, materials, and resources for instructors who want to include theory, simulation, and computation in the undergraduate curriculum. There has been a notable progression from teaching students to use discipline-specific computational tools to developing interactive computational tools that promote active learning to having students write code themselves, such that they view computation as another tool for solving problems. We are moving toward a future where computational skills, including programming, data analysis, visualization, and simulation, will no longer be considered an optional bonus for students but a required skill for the 21st century STEM (Science, Technology, Engineering, and Mathematics) workforce; therefore, all physical and life science students should learn to program in the undergraduate curriculum.     

Digital game design-based STEM activity: Biodiversity example

Abstract

The purpose of this study is to design a digital game design-based STEM activity for fifth-grade students learning about endangered organisms and significance of biodiversity for living. This activity was carried out with twenty students in a public school in Eastern Black Sea Region of Turkey during academic year of 2018–2019 spring term. This study planned as eight-lesson time (8?×?40?minutes) and completed at this lesson time. The students were given the digital game design challenge in real-life problem context that has been created based on design-based science learning and for which they shall use their knowledge and skills in each of the STEM disciplines. During this design challenge, students worked like a scientist and an engineer. They carried out scientific research and inquiry process in the science discipline, understood the engineering design process in the engineering discipline, established mathematical relations in the mathematics discipline, learned how to make coding in the technology discipline, and used this knowledge and skills thus acquired in their suggested solutions for the design challenge. They designed a digital game by coding and presented science knowledge and skills that acquired from inquiry process.     

Developing a flexible learning activity on biodiversity and spatial scale concepts using open‐access vegetation datasets from the National Ecological Observatory Network

Biodiversity is a complex, yet essential, concept for undergraduate students in ecology and other natural sciences to grasp. As beginner scientists, students must learn to recognize, describe, and interpret patterns of biodiversity across various spatial scales and understand their relationships with ecological processes and human influences. It is also increasingly important for undergraduate programs in ecology and related disciplines to provide students with experiences working with large ecological datasets to develop students’ data science skills and their ability to consider how ecological processes that operate at broader spatial scales (macroscale) affect local ecosystems. To support the goals of improving student understanding of macroscale ecology and biodiversity at multiple spatial scales, we formed an interdisciplinary team that included grant personnel, scientists, and faculty from ecology and spatial sciences to design a flexible learning activity to teach macroscale biodiversity concepts using large datasets from the National Ecological Observatory Network (NEON). We piloted this learning activity in six courses enrolling a total of 109 students, ranging from midlevel ecology and GIS/remote sensing courses, to upper‐level conservation biology. Using our classroom experiences and a pre/postassessment framework, we evaluated whether our learning activity resulted in increased student understanding of macroscale ecology and biodiversity concepts and increased familiarity with analysis techniques, software programs, and large spatio‐ecological datasets. Overall, results suggest that our learning activity improved student understanding of biological diversity, biodiversity metrics, and patterns of biodiversity across several spatial scales. Participating faculty reflected on what went well and what would benefit from changes, and we offer suggestions for implementation of the learning activity based on this feedback. This learning activity introduced students to macroscale ecology and built student skills in working with big data (i.e., large datasets) and performing basic quantitative analyses, skills that are essential for the next generation of ecologists.     

Gaming as a Platform for Developing Science Practices

Gaming, an integral part of many students’ lives outside school, can provide an engaging platform for focusing students on important disciplinary core concepts as an entry into developing students’ understanding of these concepts through science practices. This article highlights how S’cape can be used to support student learning aligned with the most recent standards documents. Through combining students’ initial engagement in a motivating gaming experience with a two-experiment scaffolded inquiry sequence enhanced with information literacy-targeted homework, this article reveals how support can be offered for asking questions, planning and carrying out investigations, analyzing and interpreting data, constructing explanations, and engaging in argument from evidence to refine understandings of core concepts. We believe that as science teachers strive to explore important concepts with students through allowing them to actually practice science, games such as S’cape strategically leveraged and sequenced with scaffolded inquiry experiences can support these efforts.     

遗传学史在遗传学教学中的作用

科学史的研究和发展状况能反映一个国家的科学技术水平,遗传学史是生命科学发展史的一个重要分支,21世纪是生命科学的世纪,在遗传学教学中加强遗传学发展史的介绍,不仅具有教育功能,使学生了解遗传学的产生和发展,而且可以培养学生的思维能力和科学素质。本文就遗传学史的教育功能及在教学中的作用进行论述。     

Arduino-Assisted robotic and coding applications in science teaching: Pulsimeter activity in compliance with the 5E learning model

Abstract

The purpose of the current study is to design and develop an Arduino-assisted robotic and coding activity in compliance with the 5E learning model for middle school students to construct knowledge and realize learning in science teaching. The study was conducted on 6^th grade students attending a private middle school in Turkey in the second term of the 2018 and 2019 school year. Application of the designed activity was carried out in the science laboratory with the participation of 10 students who were the members of the STEM club. The activity was designed to teach the concept of pulse addressed within the subject of circulatory system in the science curriculum in line with the 5E learning model. With this activity developed, systematic contraction and relaxation movements of the heart while working were modeled through robotics and coding. In addition, through this activity, it was intended to introduce the students to coding, to improve their attitudes towards technology, to develop their information processing skills and to help them to relate the concept of pulse to daily life. In this way, the students were provided with opportunities to experience Arduino-assisted robotic and coding applications and to integrate such applications into their daily life.     

An outreach activity to enhance biochemistry pedagogy

Students are self-motivated to learn when provided opportunities that connect theory and real-world applications. Here, we describe for biochemistry majors a newborn screening–focused outreach activity that seeks to develop students’ mastery of disciplinary content and soft skills (e.g., critical thinking, teamwork, effective communication, community engagement) and to enhance student engagement.     

Connecting ecology to daily life: how students and teachers relate food webs to the food they eat

This study used sociocultural learning theory to better understand how middle and high school environmental science and biology students and pre- and in-service science teachers connect the daily life activity of eating to the food web model learned in school. We sought to understand how student and teacher perceptions of the environment and their experiences influenced their responses to interview questions regarding this topic. Findings, based on transcribed interviews with 54 study participants, indicate that three quarters of teachers and students were unable to connect the food they eat with ecosystem food webs. Even so, many respondents particularly those from elite public schools, did not demonstrate common food web misconceptions identified by other researchers, instead showing a sophisticated understanding of food web interactions. These findings indicate that even though participants were proficient in their school science understanding of food web interactions, they did not readily think about how their everyday out of school activities, like eating, relate to those interactions. This may be representative of a more general disconnect between formal ecology instruction and daily life activities. We provide several recommendations for how this disconnect can be remedied in our classrooms.     

Selecting Trade Books for Elementary Science Units

Understanding the concept of electromagnetic radiation (EMR) and its interaction with matter (absorption, reflection, and transmission) can be difficult for students in seventh and eighth grade physical science classes. This inquiry-based activity (IBA) is aimed at improving their understanding of these concepts by exploring the interaction of EMR with leaves of different plant species or health conditions. Incorporating at least two different types of leaves from the local environment and measuring their interaction with EMR peaks student interest in this activity. After completing this IBA, students will see how objects interact in different regions of the electromagnetic spectrum and gain a better understanding of phenomena such as reflection and absorption. Further, this IBA can help them understand how human eyes perceive different colors. This activity can be expanded by a biology teacher to include a discussion about leaf pigments and how their interaction with EMR determines the colors of leaves. Concepts covered in this IBA can be related to remote sensing science and how sensors on board satellites collect Earth Observation data.     

Attitudes of Students at a Private Christian Liberal Arts University Toward the Teaching of Evolution

Students at private Christian colleges tend to have a viewpoint that incorporates faith and belief in God. Whether due to misconceptions about evolution, lack of knowledge of the nature of science, or belief that their faith cannot allow them to accept evolution, there tends to be a great deal of confusion about evolution. This study investigates the attitudes toward evolution of students at a small Christian liberal arts university located in east Texas (East Texas Baptist University, ETBU) and how they would feel most comfortable being approached about evolution in the college science classroom. The majority of students at ETBU are from either Texas or Louisiana. In high school, both states require at least one science course to be taken and evolution to be taught at some level of understanding. Students show a fair understanding that science includes only naturalistic explanations . However, a greater number of science courses and maturity level of the student resulted in significant differences (P = 0.0001 and P = 0.002, respectively) in the understanding of science. Nevertheless, there was a general assertion that God should be included in the definition of science by the majority of students (64.4%), indicating a misunderstanding of the nature of science. Students responded that they would be most comfortable with being approached in the classroom about evolution through the presentation of the science supporting evolution (19.6%), and being shown how creationism and intelligent design are not science (29.8%). A number of students responded that the professor should accept creationism and intelligent design as science and teach them as such (38.2%). This paper will present methods to address students that respond to evolution in this manner.     

Local Tree Mapping: A Collaborative,Place-Based Activity Integrating Science,Technology, Math,and Geography

This inquiry-based activity designed for the fifth through 12th grade allows students to engage in an outdoor, place-based experience, working collaboratively both in groups and as a class to accomplish the class goal of creating a local tree map linked to student-collected data about each tree. During Local Tree Mapping, students explore the local trees in the yard or neighborhood of the school, while learning basic skills in geographical information systems and Microsoft Excel. Through this activity, students gain a deeper understanding of and appreciation for the role of trees within the Earth's ecosystems, as they collect data on tree type, height, diameter, age, and the longitude and latitude of the trees. An extension activity is described in which students can enter their tree data into a carbon dioxide (CO₂) emissions reduction calculator to determine how much CO₂ is sequestered by the trees in their research site. Local Tree Mapping provides an opportunity for students to gain inquiry skills in science, mathematics, and geography as they participate firsthand in the collection, analysis, and presentation of real-world data that can be utilized by the local community.