Teaching space-group diagrams to chemistry students through a peer-tutoring approach.
Ontology highlight
ABSTRACT:
SUBMITTER: Zheng SL
PROVIDER: S-EPMC8423007 | biostudies-literature |
REPOSITORIES: biostudies-literature
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Project description:The high attrition rate among science, technology, engineering, and mathematics (STEM) majors has long been an area of concern for institutions and educational researchers. The transition from introductory to advanced courses has been identified as a particularly "leaky" point along the STEM pipeline, and students who struggle early in an introductory STEM course are predominantly at risk. Peer-tutoring programs offered to all students in a course have been widely found to help STEM students during this critical transition, but hiring a sufficient number of tutors may not be an option for some institutions. As an alternative, this study examines the viability of an optional peer-tutoring program offered to students who are struggling in a large-enrollment, introductory biology course. Struggling students who regularly attended peer tutoring increased exam performance, expert-like perceptions of biology, and course persistence relative to their struggling peers who were not attending the peer-tutoring sessions. The results of this study provide information to instructors who want to design targeted academic assistance for students who are struggling in introductory courses.
| S-EPMC4477732 | biostudies-literature
Project description:In this research the effects of reciprocal peer tutoring on students' mathematics anxiety levels were examined. A pretest posttest with control group design was used at a public middle school in Spain. A total of 420 students in 7th, 8th, and 9th grades participated in the study, of which 215 were female and 205 were male. Students were randomly assigned and equally distributed by course grade (140 in each course grade) and experimental condition (210 in the experimental group and 210 in the control group). Quantitative data were gathered using the Mathematics Anxiety Scale developed by Chiu and Henry (1990). Qualitative information was gathered during eight focus group sessions that were held with students. Two main factors were analyzed using the quantitative and qualitative information: mathematics learning anxiety and mathematics evaluation anxiety. Results were analyzed by gender and course grade. Statistically significant improvements were reported for both male and female students in the experimental group and for each course grade for both factors. No statistically significant differences were reported for students in the control group in any case. A moderate effect size was reported for mathematics evaluation anxiety (Hedge's g = 0.42), and a large effect size was reported for mathematics learning anxiety (Hedge's g = 0.84). Information obtained from the focus groups was consistent with the reported quantitative results. The main conclusion is that peer tutoring may be very beneficial for reducing middle school students' mathematics anxiety, regardless of their gender or grade.
| S-EPMC7403438 | biostudies-literature
Project description:The effects of peer tutoring on students' mathematics self-concepts were examined. The Marsh questionnaire was used to measure students' mathematics self-concepts before and after implementation of a peer tutoring program. A pretest posttest control group design was employed. Study participants included 376 students from grades 7 to 9 (12 to 15 years old). No statistically significant differences were reported between the pretest and the posttest for any of the control groups. Statistically significant improvements were reported for all grades for the experimental groups. An average increment of 13.4% was reported for students in the experimental group, and the overall effect size was reported to be medium (Hedges' g = 0.48). No statistically significant differences were reported across grades for the experimental group. The main conclusion of this study is that same-age and reciprocal peer tutoring may be very beneficial for middle school students' mathematics self-concepts. Several recommendations for field practitioners emanated from the study: use same-age and reciprocal tutoring over cross-age and fixed peer tutoring; schedule tutoring programs for four weeks or less with two to four sessions of 25 minutes or less per week for each tutoring session; and, include a control group in research studies.
| S-EPMC7147781 | biostudies-literature
Project description:This study tests the hypothesis that undergraduates who peer teach genetics will have greater understanding of genetic and molecular biology concepts as a result of their teaching experiences. Undergraduates enrolled in a non-majors biology course participated in a service-learning program in which they led middle school (MS) or high school (HS) students through a case study curriculum to discover the cause of a green tomato variant. The curriculum explored plant reproduction and genetic principles, highlighting variation in heirloom tomato fruits to reinforce the concept of the genetic basis of phenotypic variation. HS students were taught additional activities related to mole-cular biology techniques not included in the MS curriculum. We measured undergraduates' learning outcomes using pre/postteaching content assessments and the course final exam. Undergraduates showed significant gains in understanding of topics related to the curriculum they taught, compared with other course content, on both types of assessments. Undergraduates who taught HS students scored higher on questions specific to the HS curriculum compared with undergraduates who taught MS students, despite identical lecture content, on both types of assessments. These results indicate the positive effect of service-learning peer-teaching experiences on undergraduates' content knowledge, even for non-science major students.
| S-EPMC4255351 | biostudies-literature
Project description:INTRODUCTION:Teaching cardiac ultrasound (CU) image acquisition requires hands-on practice under qualified instructors supervision. We assessed the efficacy of teaching medical students by their previously trained classmates (teaching assistants [TAs]) compared to teaching by expert trainers (cardiologists or diagnostic medical sonographers. METHODS:Sixty-six students received 8-hour CU training: 4-hour lectures on ultrasound anatomy and imaging techniques of 6 main CU views (parasternal long [PLAV] and short axis [PSAV]; apical 4-chamber [4ch], 2-chamber [2ch], and 3-chamber [3ch]; and sub costal [SC]) followed by 4 hours of hands-on exercise in groups of ≤5 students under direct supervision of a TA (group A: 44 students) or a qualified trainer (group B: 22 students). Students' proficiency was evaluated on a 6-minute test in which they were required to demonstrate 32 predetermined anatomic landmarks spread across the 6 views and ranked on a 0-100 scale according to a predetermined key. RESULTS:The 6-minute test final grade displayed superiority of group A over group B (54±17 vs. 39±21, respectively [p = 0.001]). This trend was continuous across all 6 main views: PLAV (69±18 vs. 54±23, respectively), PSAV (65±33 vs. 41±32, respectively), 4ch (57±19 vs. 43±26, respectively), 2ch (37±29 vs. 33±27, respectively), 3ch (48±23 vs. 35±25, respectively), and SC (36±27 vs. 24±28, respectively). CONCLUSIONS:Teaching medical students CU imaging acquisition by qualified classmates is feasible. Moreover, students instructors were superior to senior instructors when comparing their students' capabilities in a practical test. Replacing experienced instructors with TAs could help medical schools teach ultrasound techniques with minimal dependence on highly qualified trainers.
| S-EPMC6436682 | biostudies-literature
Project description:Introduction: This project report describes the development, pilot phase, evaluation and implementation of a preparatory course week for incoming Erasmus medical students at the LernKlinik Leipzig, the Skills and Simulation Centre of the Medical Faculty, University of Leipzig. Project description: The aim of this project is to prepare Erasmus students for their year abroad using peer-assisted teaching as the method of choice. Major intended outcomes were support of language and clinical practical skill competency development, as well as enhancement of integration among international and German-speaking peer tutors. The methodological framework of Ross and Cameron [1] was used in planning the Erasmus-Week. For planning the 2012 pilot project, a survey among Erasmus students of the academic year 2011/12 was performed. All succeeding cohorts were asked to participate in pre- and post-surveys which were analyzed quantitatively and qualitatively. Results: Between 2012 and 2017, n=173 European medical students spent their Erasmus year in Leipzig. Of these, n=148 (86%) participated in the Erasmus-Week. The country of origin of most Erasmus students was Rumania (20,3%). Among the most positively received aspects of the Erasmus-Week, the active use of German for medical purposes and the use of peer-teaching as the method of choice to learn and repeat basic medical examination skills were mentioned. Students emphasized their wish for being able to participate in further course offers. Conclusions: Offering a preparatory course week for incoming Erasmus students focusing on language and clinical practical skills training using peer-teaching as the method of choice may facilitate the integration of Erasmus students into their foreign medical curriculum. Further studies are underway to elucidate if these experiences influence later professional careers and choice of employment.
| S-EPMC6326402 | biostudies-other
Project description:BackgroundNear-peer tutoring appears to be an efficient approach for teaching clinical skills. However, the clinical experience gained in the form of student medical internships may offset any interest in such tutoring programme. We then investigated the long-term benefits of this programme.MethodsThis study was conducted in a medical school that experimented in near-peer tutoring for semiology intended for undergraduate medical students. Objective Structured Clinical Examinations and a written semiology test were used to assess students' clinical skills immediately on its conclusion and repeated one and 2 years after the tutoring was completed.Results116 students were evaluated initially (80 tutored and 36 untutored), 38 at 1 year (16 tutored and 22 untutored), 42 at 2 years (21 tutored and 21 untutored). In the global score for Objective Structured Clinical Examinations: at 1 year, the tutored group scored 14.0 ± 1.05 and the untutored group scored 11.3 ± 2.3 (p < 0.001), at 2 years, the tutored group scored 15.1 ± 1.5 and the untutored group scored 12.4 ± 2.2 (p < 0.001). We found a similar but smaller difference for the written semiology test. The difference for Objective Structured Clinical Examinations between tutored and untutored students vanished over time for cross-cutting skills.ConclusionsNear-peer tutoring in semiology for undergraduate medical students led to better results that remained with the passing of time. Though internships do allow an improvement in the clinical skills of untutored students, they did not reach the level of tutored students.
| S-EPMC8744339 | biostudies-literature
Project description:Background:Education is a cornerstone strategy to prevent health-associated infections. Trainings benefit from being interactive, simulation-based, team-orientated, and early in professional socialization. We conceived an innovative inter-professional peer-teaching module with operating room technician trainees (ORTT) teaching infection prevention behavior in the operating room (OR) to medical students (MDS). Methods:ORTT delivered a 2-h teaching module to small groups of MDS in a simulated OR setting with 4 posts: 'entering OR'; 'surgical hand disinfection'; 'dressing up for surgery and preparing a surgical field', 'debriefing'. MDS and ORTT evaluated module features and teaching quality through 2 specific questionnaires. Structured field notes by education specialist observers were analyzed thematically. Results:On Likert scales from - 2 to + 2, mean overall satisfaction was + 1.91 (±0.3) for MDS and + 1.66 (±0.6 SD) for ORTT while teaching quality was rated + 1.89 (±0.3) by MDS and self-rated with + 1.34 (±0.5) by ORTT. Students and observers highlighted that the training fostered mutual understanding and provided insight into the corresponding profession. Conclusions:Undergraduate inter-professional teaching among ORTT and MDS in infection prevention and control proved feasible with high educational quality. Inducing early mutual understanding between professional groups might improve professional collaboration and patient safety.
| S-EPMC6518629 | biostudies-literature
Project description:IntroductionMany physicians do not feel competent providing nutritional counseling to patients. A minimum of 25 hours dedicated to nutrition is recommended in preclinical years, but only 40% of U.S. medical schools achieve this goal. Nutrition counseling is best done when physicians work collaboratively with registered dietitians (RDs). We sought to introduce this interprofessional approach in our preclinical curriculum.MethodsIn our first-year doctoring course, students viewed a nutrition lecture from a physician and RD. Teams of two to three medical students and one dietetics student were formed. The medical students took a history and performed nutrition counseling on the dietetics student role-playing a patient. The RD student provided feedback and reviewed clinical questions pertaining to the nutrition case. Medical students presented answers to their assigned case to the whole group. Medical students completed pre-/postsurveys assessing satisfaction and perceived confidence with nutrition counseling and were formally assessed using a standardized patient. The scores were compared to students from the year before who received the lecture but not the RD student activity.ResultsEighty-one medical students participated. After the activity, there was an increase in confidence with nutrition counseling (p < .001), and 74% found working with dietetics students to be helpful or extremely helpful. The nutrition counseling mean score increased from 68% (historical control, n = 76) to 84% (n = 75; p < .001) on the standardized patient assessment.DiscussionThis format is an effective method of teaching nutrition counseling and promoting interprofessional behavior among rising physicians and RDs.
| S-EPMC6342344 | biostudies-literature
Project description:The development of new bifunctional linchpins that permit the union of diverse building blocks is essential for the synthetic utility of anion relay chemistry (ARC). The design, synthesis, and validation of three vinylepoxide linchpins for through-bond/through-space ARC are now reported. For negative charge migration, this class of bifunctional linchpins employs initial through-bond ARC by an SN 2' reaction, followed by through-space ARC exploiting a 1,4-Brook rearrangement. The trans-disubstituted vinylepoxide linchpin yields a mixture of E/Z?isomers, whereas the cis-disubstituted and the trans-trisubstituted vinylepoxide linchpins proceed to deliver three-component adducts with excellent E?selectivity.
| S-EPMC3969824 | biostudies-literature