Geoscience Courses Research Articles

Multimodal Academic Discourse Socialization: Examining Geoscience Students’ Disciplinary Knowledge Construction and Socialization at a Canadian University

Abstract This ethnographic multiple-case study examines how undergraduate students are socialized into the disciplinary norms, values, and practices of a geoscience course at a Canadian university. Transcending logocentric assumptions about academic discourse, this article advances a broader domain of inquiry––multimodal academic discourse socialization––which foregrounds the polysemiotic nature of academic socialization. This approach examines not only linguistic but also a wider range of semiotic resources, including gestural, visual, material, and spatial ones, among others. To understand geoscientists’ disciplinary norms, values, and communicative practices, ethnographic data (classroom observations, semi-structured interviews, course-related artefacts) were thematically analysed. Focal students’ geoscience poster presentation performances were also analysed using multimodal interaction analysis to scrutinize micro-level instantiations of disciplinary practices. Findings highlight how students were socialized into geoscience ‘observations and interpretations’ through a recurrent multimodal classroom activity, which was also reflected in micro-level multimodal practices enacted in students’ geoscience poster presentations. This study emphasizes that multimodal enactments constitute a crucial dimension of disciplinary practices and values connected with learning to think, view, and represent knowledge as geoscientists.

The role of the ‘think-pair-share’ active learning strategy in influencing content knowledge and self-confidence of undergraduate students in a large enrollment geoscience course

This study explores the relationship between the self-confidence and content knowledge of undergraduate students in a large enrollment geoscience course following an active-learning think-pair-share (TPS) activity, and whether high confidence necessarily leads to overconfidence. We used a pre-experimental, one group pre-test – post-test design, and an audience response system to record students’ responses to a series of questions covering geoscience concepts and the level of confidence that students had in their answers. During each class session, the students were first asked to engage in one or two TPS activities before responding to a series of questions, focusing on content knowledge and self-confidence. We analyzed the data using exploratory data analysis, boxplots, bar graphs, the Wilcoxon signed-rank test and the Chi-Square test. Results indicate that the content knowledge and self-confidence of students increased after students participated in TPS activities. 55% of students correctly answered the pre-activity question, and 74% correctly answered the post-activity question. The results also reveal that while the TPS activity helped to improve self-confidence from a median of 3 to 4 on a five-point scale, the proportion of responses from students that were overconfident in their abilities decreased from 22% in the pre-activity to 13% in the post-activity.

The Importance of Frequent Engagement With Self-Assessment Resources in Online Learning: A Hierarchical Linear Modeling Approach

This study explored online assessment and highlighted significant assessment strategies, such as capstone projects, quizzes, and self-assessments. Inquiry-based assessment, transformative assessment, and scaffolding with self-assessment resources formed the framework. Our goal was to determine the effects of certain self-assessment parameters on student achievement in online learning, including the frequency of answering online self-assessment questions, the points earned for correct answers, and the time spent answering questions. Data from undergraduate geoscience courses were analyzed using a hierarchical linear model, and the results showed that frequently answering online self-assessment questions is a strong predictor of higher final grades, capstone project success, and quiz results. The frequency of answering online self-assessment questions was a more significant factor than the amount of time spent on these questions and the total points earned. Educators are encouraged to redesign their courses to include self-assessment resources that promote frequent student engagement instead of just one-time interaction.

Investigating Students’ Perception with an Online Dynamic Earth Course during COVID-19: A Quantitative Inquiry

This study investigated Earth science students’ experiences with online education during the COVID-19 pandemic at the University of Tennessee, Knoxville, in the US. We used an existing survey from the online education literature, the Online Learning Environment Survey (OLES), which consists of three instruments: (a) community of inquiry (CoI), (b) Institutional Support (IS), and (c) Self-Directed Online Learning Scale (SDOLS). The survey rating subscales ordered from highest to lowest are autonomous learning, asynchronous online learning, institutional support, teaching presence, social presence, and cognitive presence, respectively, indicating interest for the online learning environment. Among all of the subscales, the asynchronous online category was rated the highest by the students. The data were then analyzed using Rasch modeling. According to the Rasch analyses, asynchronous online teaching represents the most favorable course delivery technique for geoscience education. Overall, the survey data show a general interest in online delivery and the effectiveness of the modality, thus indicating potential for evolving into an online Earth science program. Finally, also discussed are possible future extensions of the research (e.g., extending the research to other introductory online geoscience courses).

Common-sense teaching for the 2020s: Ungrading in response to covid-19 and beyond

Conventional letter- or number-based grading systems, though ubiquitous at all levels of education, do not optimize the learning experience. The philosophy of “ungrading” includes a variety of approaches that decenter or even remove numeric or letter scoring of student work in favor of descriptive feedback, opportunities for revision, self-assessment and reflection, and assessment toward mastery. This paper presents one of the few published descriptions of the use of ungrading approaches in geoscience courses at the undergraduate and graduate level. We showcase four approaches, detailing the courses and ungrading structures used, positive outcomes and challenges, and tools that might allow others to apply these methods. We describe (a) mastery and specifications grading, chosen to promote mastery of course materials in mid- and upper-level courses for college majors; (b) labor-based grading used to promote depth of student learning by focusing on revision; (c) collaborative grading utilizing self-assessment and reflection chosen to promote meta-cognition and growth mindset; and, (d) partial ungrading as a means to begin the ungrading process. Importantly, our experiences have led us to recognize the equity that ungrading approaches create, enabling students from different backgrounds, including students of color and disabled students, to find stronger support and build greater competence and confidence in geoscience classes.

Three Horizons for Future Geoscience

Geoscience, along with other scientific disciplines, is being increasingly challenged on how it can best confront key global challenges, such as climate change, food insecurity, biodiversity loss, human conflict and migration, and persistent poverty. But its traditional association with exploitation of the planet’s natural resources for energy and materials links it with contemporary concerns around unsustainable human practices, arguably fueling a growing disenchantment that is most evident in declining enrollment in university geoscience courses in many countries. Therefore, a fresh re-framing of the geoscience’s relationship to society would seem to be urgently needed. In response to this need, we introduce the “Three Horizons” concept for visualizing paradigm change in complex systems as a tool to explore how the future global geoscientific mission might be re-imagined. Using this conceptual framework, we consider three parallel pathways – “business as usual” (horizon 1), “entrepreneurial” (horizon 2) and “visionary” (horizon 3)—that offer alternative narrative trajectories for how geoscience and geoscientists might serve society’s grand challenges.

The importance of affective learning goals: lessons learned from the design and evolution of a geoscience course for preservice primary teachers

The challenges of teaching science to preservice elementary teachers include an overall negative attitude about science that translates to future teachers who do not teach science confidently and/or teach it superficially and hurriedly compared to other subjects. College-level science courses for preservice teachers have an opportunity to reverse this trend and help create teachers who are knowledgeable about science and enjoy teaching it. In this paper, we discuss the hybrid model of an online course and a hands-on, inquiry-based lab that was developed, implemented, and evolved over eight years. The lab activities, in particular, were developed to address both content and affective goals. These goals were to provide students with a solid foundation in Earth and Space Science content and to make them comfortable teaching science. An assessment of these goals shows that this course increased preservice teachers’ level of confidence to teach these topics, and students generally found the course to be enjoyable and the content to be useful to their future careers. More work needs to be done to assess the content knowledge of this group of students, highlighting the need for developing a validated instrument that covers the breadth of Earth and Space Science content included in the NGSS for elementary grades.

GIS-Based Virtual Field Trip as a Tool for Remote Education

Geoscience courses, such as geology and geomorphology, require not only classroom lessons and laboratory exercises, but field trips as well. However, the COVID-19 restrictions did not allow the execution of most planned field trips, and an alternative needed to be developed. The use of virtual field trips is one such alternative. Through this research, we evaluate the usefulness of virtual field trips as tools for preparatory activities before an actual field trip takes place in the same area, and their contribution in providing a better understanding of geomorphological processes and landscape evolution. We performed a virtual navigation on the island of Naxos, Cyclades (Aegean Sea, Greece) for a series of virtual field trips, which took place during webinars in the framework of Erasmus+ CIVIS. The virtual field trip was also presented to the third-year students of the Faculty of Geology and Geoenvironment, National and Kapodistrian University of Athens, in the framework of the obligatory course of Geomorphology. Upon completion, all participating students were asked to fill in a questionnaire in order to evaluate the contribution of virtual field trips to their education regarding geomorphology and state their opinion as to whether they can supplement and/or substitute actual field trips. According to the results, virtual field trips can aid, but not substitute, the actual field trip. Most students mentioned that they would attend another virtual field trip in the future, both as an alternative to classroom lessons and as a means of preparation for an actual field trip, but not in order replace the actual one. Virtual field trips can significantly support the realization of actual ones, by introducing the necessary tectonic, geological and geomorphological background of a particular study area and offering more time for practical activities or field methodologies during the actual field trip.

Scaffolding geology content and spatial skills with playdough modeling in the field and classroom

Spatial skills are embedded in all aspects of the geosciences. The teaching and learning of spatial skills has been a challenging, but vital, endeavor. To support student learning of spatial skills in undergraduate courses, we designed scaffolds for spatially dependent content in a mid-level geoscience course using playdough to allow students to model and manipulate geologic structures and processes. Using a semester-long geology course as a case study, we explore the ways in which students reported playdough supported their learning of geoscience content during the course. Students found the playdough most helpful for visualizing geologic structures, such as faults and domes, which students were then able to encode into their long-term memories, or “mental libraries,” for application to new contexts on assessments later. The playdough was more helpful at the start of the course when students were grappling with introductory course content and skills. Later in the course, the need for the playdough as a scaffold faded, as intended. Most students eventually sought new scaffolds, such as three-dimensional block models, which illustrate more complex and sophisticated structures and processes. Therefore, we see playdough as a useful scaffold for students in the early stages of spatial and geologic skill development as it aids students in developing both sets of skills. It is easy to utilize, inexpensive, portable, widely available, and familiar to most students.

Investigating best practices in utilizing a web-based assessment tool in an introductory geology course: “CLASS,” course setting and course structure

In the past couple of decades, the geoscience education community has made great strides toward investigating how to provide effective student learning experiences in the college setting. While experiences such as student-centered teaching strategies and course design elements are useful for the instructor, they may not make important elements of the learning process itself explicit to the student. As a result, students may navigate a course without timely and necessary feedback related to their learning progress. To help remedy this issue, we designed and developed the Confidence-based Learning Accuracy Support System (CLASS) to provide students explicit feedback related to their mastery of geology content and the accuracy of their perceptions of their abilities. CLASS leverages robust evidence from education psychology regarding student metacognition and self-regulated learning (SRL). We investigated the relationship between students’ judgments of their performance and their actual performance during summative exams in an introductory physical geology course. This study collected student confidence data for every question of students’ midterm exams and compared this confidence to performance via multiple empirically-derived measures of the disparity between students’ perceptions of their performance and their actual performance. In addition to exam-based data, we developed and provided CLASS quizzes (with varying requirements) to provide students with feedback regarding their learning and accuracy during the target courses. Results indicated that students utilizing CLASS performed better than their predecessors for the first two exams and were generally more accurate in their approximations. Overall, results provide support for CLASS’s potential to serve as a tool for increasing student metacognitive awareness, self-regulation and performance in undergraduate geoscience courses.

Introduction to teaching science with three-dimensional images of dinosaur footprints from Cristo Rey, New Mexico

Abstract. In this paper we discuss the use of three-dimensional (3-D) imagery and virtual field trips to teach pre-university and non-major university geoscience courses. In particular, 3-D PDF (Portable Document Format) files can be used to either prepare students for or completely replace a field trip when logistical problems make the actual trip too difficult to be effective or when some students need an alternative accommodation. Three-dimensional images can replace or supplement classroom activities, such as the identification of rocks and minerals from hand samples or the identification of geologic structures from 2-D photographs and limited field observations. Students can also become involved in data collection and processing to further their understanding of photogrammetry and visualization. The use of 3-D imagery can make additional time available to instructors to cover more advanced topics and teach students more about the role of science in geologic research. We use an example from Cristo Rey, New Mexico, where dinosaur footprints and tracks are present but difficult to see in many cases, and they are often in places that are hard to access for many people. At this site, approximately 10 000 photographs were collected and processed as 3-D images to show one approximately 72 m2 area of known footprints. However, we also conducted some very simple digital manipulations of the images that allowed us to identify new footprints and tracks that were not apparent when viewed in the field. The photographs and 3-D images have been donated to the Insights El Paso Science Center (denoted Insights Museum herein) that owns the fossil site, and they are now being used to develop educational materials and lessons for the nearby communities.

Increasing Engagement in Geoscience Through Storytelling

In recent years, educators have been trying to devise programs that could increase student engagement in courses related to science, technology, engineering, and maths (STEM). These programs could help to reduce drop-out rates in higher education, encouraging more youths to pursue STEM careers. Dr Erin Kraal and Dr Laura Guertin, two professors at Kutztown University and Penn State Brandywine, have recently assessed ‘Student Produced Audio Narratives’ (SPAN), a teaching approach designed to improve the perceptions of students enrolled in introductory geoscience courses and increase their engagement.

Google Street View as a Teaching Tool for Assessing Earthquake Building Damage

Abstract Damage to infrastructure is one of the most visible impacts that earthquakes have on our daily lives. For this reason, introductory undergraduate courses in seismology and related fields often cover earthquake damage in relation to seismic hazard and risk. This topic is commonly introduced by viewing examples of damage, either through static images or videos. Subsequent coursework frequently involves excursions to the field for in-person site inspections and relating the damage to seismic intensity and other parameters of strong ground motion. These field visits provide students with valuable opportunities to apply classroom knowledge to real-world settings. At the time of writing, the recent COVID-19 pandemic has forced many university classes to cancel field visits, depriving students of these experiences. In this EduQuakes article, I present a lesson plan that attempts to simulate a field visit for assessing earthquake damage in an online setting using the interactive online resource Google Street View to view an area before and after an earthquake. This format facilitates active and exploratory learning and encourages students to build the necessary skills required for further studies in more advanced geoscience courses. I include the lesson plan and a compilation of relevant resources in the supplemental material to this article.

Learning in the Wild: Fieldwork, Gender, and the Social Construction of Disciplinary Culture

ABSTRACT This paper examines the creation and negotiation of disciplinary culture, through ethnographic fieldwork about socialization in a critical learning environment: scientific fieldwork. Field-based science has received scant research attention relative to its importance as a degree requirement, a professional rite of passage, and a site where sexual harassment and assault are disturbingly commonplace. We conducted a comparative ethnographic case study of two field-based geoscience courses, one each for undergraduate and graduate students. The data include 264 hours of participant-observation and 34 interviews with students and faculty. Three prominent qualities of the culture — eroding temporal and spatial boundaries, navigating challenging conditions, and normalizing alcohol — reflect and/or reinforce disciplinary norms of informality, togetherness, and toughness. We observed these qualities and norms could be leveraged for exclusion or inclusion; they are tools that, together, create a gendered disciplinary culture. Some women resisted the narrow definition of these norms, reframing toughness to include mental toughness, for example. Implications for course design and field leadership, as well as the possibilities and limits of disciplinary cultural change, are discussed.

Impact of Student Produced Audio Narrative (SPAN) assignments on students’ perceptions and attitudes toward science in introductory geoscience courses

An important challenge for the geoscience community is developing engaging, accessible, and effective experiences within introductory courses, which are often gateways to geoscience majors. This study evaluates low-barrier-to-entry and flexible assignments focused on a pedagogical innovation: faculty replaced one of their usual course components (research paper, lab, etc.) with a Student-Produced Audio Narrative (SPAN) assignment. SPAN assignments require students to engage with geoscience content by telling a scientific story using simple audio-recording and production techniques. The hypothesis is that SPAN assignments will increase students’ personal connection to geoscience course content. The pilot study included 8 faculty and 693 students across a range of institution types, course structures, class sizes, and content topics during the control and implementation semesters. The study evaluated student responses to SPAN assignments both quantitatively, using a pre/post survey, and qualitatively, using semi-structured interviews. Survey results show that students experienced positive changes in the categories of personal relevance, sense of curricular innovation, and future intentions to study science. Interview results indicate that much of the increased senses of innovation and personal relevance came from the creativity and choice the students experienced during the SPAN assignment. Taken together, these results indicate that SPAN assignments are innovative to students and effective pedagogical tools that can positively change students’ perceptions of their learning environment and attitudes toward science.

Improv games in geoscience courses

Improvisational or “improv” theater is a live form where the elements of a scene are made up during the performance. Research in various academic disciplines has found the use of improv in classrooms beneficial. However, there is no such literature of use in the geosciences. Presented here are the results from two semesters of nearly daily usage of improv games in upper division geoscience courses (Mineralogy and Petrology). Results from a student perception survey indicate agreement in the usage of these games toward: 1) fostering a community of practice, and 2) developing students’ transferable skills. The former benefits learning in the course and may increase retention of a more diverse student body. The latter prepares students to be adaptable in a dynamic workplace, preparing future scientists to contribute to societal challenges. The role improv might play in a classroom that employs active learning strategies is also discussed.

THE RESULT OF VALIDATION TESTING AND STUDENTS RESPONSE TO GEOSCIENCE STUDENTS WORKSHEETS TO IMPROVE STUDENT SCIENTIFIC WORK AND CONCEPTUAL MASTERY

Geoscience is a study of earth, it is easy to find around everyday student’s ;ife. The aim of this research is to develop Geoscience Students Worksheets based on scientific work to enhance students scientific work and conceptual mastery also to test the validity of the Geoscience Students Wroksheets through experts appraisal and students response. This reasearch is R & D research using 4D model until Develop stage. Data collection techniques including survey and interview technique. The question in the questionnaire consists on closed ended and open ended, the close ended question it to measure the validity and students response while open ended question for obtaining suggestions from all experts and students. Moreover, interview conducted during preliminary study. There are two validators in this research, they are content and learning media expert with Science Education educational background. In addition, ten students respondents in this research are already took the Geoscience Course last year. Quantitative data was analyzed by comparing the score with certain criteria and qualitative data was analyzed with finding common topics. Validation result and students respon results show that Geoscience Students Worksheets is very valid with score from content expert, learning media expert, and students consecutively 90,01%, 85,70%, and 89,4%.

Perceptions of scientists held by US students can be broadened through inclusive classroom interventions

More diverse representation in undergraduate classrooms may be an important step towards turning science, technology, engineering, and mathematics (STEM) disciplines into more inclusive communities. In the United States of America, the individuals whose work is discussed in typical introductory science courses collectively do not represent the diversity of students’ identities in the classroom and further reinforce existing stereotypes of scientists as male, white, and aged. Here we report on the implementation of a semester-long intervention in an introductory-level geoscience course at the University of South Florida, USA. We introduced students to individuals with marginalized identities who are either scientists or have had a major influence on science and conducted semi-structured interviews with students from the course’s previous semesters. Analyses of these interviews indicate that participants with marginalized and non-marginalized identities broadened their preconceptions of who belongs in science and the range of identities among scientists. We suggest that interventions like these could foster feelings of belonging in the STEM community and, with repeated efforts, reduce harmful stereotyping and microaggressions against underrepresented scientists.

Teaching topography using 3D printed terrain in an introductory earth science course: A pilot study

Topographic maps are a common form of 3D surface elevation data represented as a 2D display. Despite their use in geoscience courses, many students find learning to effectively read and interpret these maps challenging. Here, we present a tool for teaching topographic map interpretation using 3D printed terrain. The terrain was 3D printed from a portion of the quadrangle map used in an introductory earth science course for non-science majors. Students placed the ∼12 cm square terrain directly on the corresponding area of the paper topographic map, in order to see the landscape. Student learning was compared between an original version of the topography lab and the same lab with the addition of the 3D printed terrain, using the Modified Topographic Map Assessment (MTMA) administered as a pre- and posttest with each group. As measured by pretest scores on the MTMA, students in the original (n = 54) and 3D print terrain tool (n = 24) groups had comparable incoming topographic map interpretation skills (t(75) = .98, p = .33). Pre- to posttest MTMA scores did not significantly improve in the original lab group (M = 0.63, SD = 3.13, t(53) = 1.48, p = .15) but did in the 3D print terrain group (M = 1.96, SD = 2.97, t(23) = 3.23, p = .004) with a moderate effect size (d = .53). Results of this pilot study suggest that 3D printed terrain shows promise as a teaching tool that could be adapted to multiple uses including K-12 classes and upper division earth science courses.

Exploring Best Practices in Geoscience Education: Adapting a Video/Animation on Continental Rifting for Upper-Division Students to a Lower-Division Audience

Well-crafted and scientifically accurate videos and animations can be effective ways to teach dynamic Earth processes such as continental rifting, both in live course offerings as well as in online settings. However, a quick search of the internet reveals too few high-quality videos/animations describing deep Earth processes. We have modified a hybrid 10.5 min video/animation about continental rifting and the formation of new oceans and passive continental margins created for an upper-division geology audience, retailoring it for a lower-division geology audience. A key challenge in successfully modifying such resources is aligning the cognitive load that the video/animation imposes on students, in part related to the technical geoscientific jargon used in explaining such phenomena, with that which they encounter on these topics in their textbooks and classrooms. We used expert feedback obtained at a 2019 GeoPRISMS (Geodynamic Processes at Rifting and Subducting Margins) workshop in San Antonio to ensure the accuracy of the science content of the upper-division video. We followed this with a review of the terminology and language used in the video/animation, seeking to align the video narrative with the technical language used in introductory geology offerings, which we based on examining five current introductory geology textbooks and feedback from students in introductory geoscience courses. The revised introductory-level video/animation was piloted in an online introductory course, where it provided an improved conceptual understanding of the related processes of continental rifting, opening new oceans, and formation of passive continental margins.