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Morphological variability in bilingual language production is widely attested. Producing inflected words has been found to be less reliable and consistent in bilinguals than in first-language (functionally monolingual) L1 speakers, even for bilingual speakers at advanced proficiency levels. The sources for these differences are not well understood. The current study presents a detailed investigation of morphological generalization processes in bilingual speakers' language production. We examined past participle formation of German using an elicited-production experiment containing nonce verbs with varying degrees of similarity to existing verbs testing a large group of bilingual Turkish/German speakers relative to L1 German speakers. We compared similarity-based lexical extensions with generalizations of morphological rules. The results show that rule-based generalizations are used less often and more variably within the bilingual group than within the L1 group. Our results also show a selective effect of age of acquisition on the bilingual speakers' morphological generalizations.
Educational Scaffolding was first mentioned in 1976 by Wood et al. Several examples for scaffolding in chemistry are also known from the literature. As written scaffolds, stepped supporting tools to support students while solving problems in organic chemistry were developed, applied, and evaluated. Although the students rated the tool as very helpful, a think-aloud study showed that the support given by this scaffold was not sufficient. As a further development of stepped supporting tools, task navigators were therefore developed, applied, and evaluated. This new scaffold gives tips on strategy, knowledge, and application of knowledge after the STRAKNAP concept. The evaluation of this tool shows that the students rated the tool as being very helpful. A think-aloud study showed that the scaffold supports the students while they solve a problem. Because of the stepwise construction of the task navigators and the providing of the knowledge needed for the application, the students can solve parts of the task successfully even if they do not solve all parts correctly; the students can always start from scratch. When students use the tool regularly, their knowledge of organic chemistry increases compared to students who did not use the tool at all. The task navigator is not only a scaffold for the content of the task but also for the development of methodological competences on the field of strategies and applying knowledge.
Violence in adolescent relationships is a common problem with numerous negative short- and long-term consequences. Because most of the evidence on teen dating violence (TDV) synthesized in reviews comes from North American studies, this review aimed to compile evidence on prevalence rates of TDV based on studies identified for Europe only. Specifically, we considered different forms of TDV victimization and perpetration, gender differences, and its measurement. A systematic literature search of the most popular databases Ebsco and PubMed yielded a total of N = 34 studies, with most of the studies identified for Spain, and only a few studies in other European countries. In sum, the results revealed a great variability in prevalence rates across and within the European countries, a common pattern of gender differences, and a wide range of applied measures, corresponding with the evidence from the North American studies. Implications for future research and policy were discussed.
In this paper, we describe a study on tasks following the construct of school-related content knowledge. We know from previous studies that such tasks were rated by the preservice chemistry teachers as important for their future profession. Those studies were conducted in a traditional course on organic chemistry which was organized around chemical families. Therefore, we used and evaluated the tasks again in a new course on organic chemistry which is organized around basic concepts in organic chemistry. The results of this evaluation show that the students rate the tasks equally well but use other arguments for their rating. They do not focus only on the content of the tasks and whether this content belongs to the school curriculum or not. The students of the conceptual course rated the content more often (95%) as important for their future profession compared with the students in the traditional course (57%). Both groups of students rated the importance of the nature of the task the same way.
We developed a new survey instrument to investigate teacher educators? motives for entering the profession and examined the associations between motives and job satisfaction and emotional exhaustion in both teachers and teacher educators. Using data from 145 teacher educators instructing in-service teachers, we identified four motives: career aspirations, social contribution, escaping routines, and coincidence. While escaping routines represents a ?push? factor associated with emotional exhaustion in teachers, career aspirations represent a ?pull? factor associated with job satisfaction in teacher educators. The instrument can be used as a self-assessment tool for the recruitment of teacher educators. ? 2021 The Authors.
We assessed teacher educators? task perception and investigated its relationship with components of their professional identity and their teaching practice. Using data from 145 teacher educators, two different task perceptions were found: transmitters and facilitators. Teacher educators who were categorized as facilitator tend to demonstrate higher levels of self-efficacy, job satisfaction, constructivist beliefs about teaching and learning and use more effective teaching strategies. The findings demonstrate that teaching practices of teacher educators are rooted in their professional identity. ? 2021 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Teacher motivation
(2021)
Several studies have revealed that older students in a year group reach higher achievement scores than younger students in that group. But less is known about how students' relative age in class relates to their self-perception of academic achievement, their social acceptance in class and to how teachers judge their abilities. Therefore, we examined relative age effects within class on students' academic self-concept, peer relations, grades, and teachers' secondary school recommendation. Analyses were based on a sample of N = 18,956 German fourth graders, who had never been retained or accelerated. We applied multilevel regression to control for covariates at the individual and classroom level. There were no substantial relative age effects within class across any of the outcomes, except for a small advantage for the youngest in their reading self-concept. Our findings therefore contradict the common assumption that younger students in class are disadvantaged compared to their older classmates.
Teacher self-efficacy and teacher interest are two key facets of teacher motivation that are important for highquality teaching. Little is known about the relative strength of the effects of teacher self-efficacy and interest on teaching quality when compared with one another. We extend previous research on teacher motivation by examining the relations linking mathematics teacher self-efficacy and interest with several relevant dimensions of teaching quality as perceived by teachers and students. Participants were 84 mathematics teachers (61.2% female) and their students (1718 students; 48.5% girls). Based on doubly latent multilevel models, we found that teacher-reported self-efficacy in instruction was positively related to teacher-reported cognitive activation, classroom management, and emotional support in mathematics classrooms. Teacher-reported educational interest showed positive associations with both student- and teacher-perceived emotional support. Future research is advised to focus more strongly on the unique relations between different teachers' motivational characteristics and relevant dimensions of teaching quality.
Es ist meist ein homogenes Verständnis vom Schulwesen, das in den Köpfen vieler Pädagog*innen, Lehrer*innen, Eltern und Bildungspolitiker*innen scheinbar zu Erfolg von Schule und Bildung führt und noch tief sitzt. Dass real existierende Heterogenität, die sich alltäglich Lehrer*innen und Pädagog*innen zeigt, als problematisch und konfliktreich gesehen wird, ist durch meine zahlreichen persönlichen und fachlichen Erlebnisse im Austausch in Lehrerfortbildungen sowie im Rahmen von Elternarbeit und schulischen Gremien eine häufige Erfahrung. Wo Diversität und Unterschiede gesehen und empfunden werden, wird Diskriminierung nicht ausgeschlossen.
Doch was erklärt diese negativ behaftete Haltung und den Umgang mit Vielfalt? Welche Problemfelder sind in der Auseinandersetzung mit Diversität an Schulen in Berlin zu verorten? Können Diversitäts- und Antidiskriminierungskonzepte etwas Positives im professionellen Umgang mit Vielfalt an Schulen bewirken? Wo liegen Chancen in der Umsetzung solcher Konzepte? Welche Hindernisse stehen dem im Weg? Kann Diversität als Markenzeichen einer Schule gesehen werden?
Als Forscherin ist es essenziell, in Bezug auf die problemorientierte Sicht auf Diversität an Schulen den für mich offenen Fragen nachzugehen und ebenso die vielfältigen Perspektiven von Expert*innen auf diese Thematik im Rahmen dieser Arbeit aufzuzeigen, um Chancen und Herausforderungen zu den genannten Fragen im schulischen Kontext zu ergründen. Mit dieser Masterarbeit können zudem Impulse für eine Reformierung der Schulentwicklungsarbeit sowie Anstöße für weitere Forschungsarbeiten im Bereich der Diversitätsprozesse an unseren Schulen gegeben werden. Im kommenden Kapitel gehe ich auf einige wesentliche Anhaltspunkte ein, die dieser Forschung Relevanz verleihen.
Die Reflexion praktischer Unterrichtserfahrungen ermöglicht es Lehramtsstudierenden theoretische Wissensaspekte und praxisrelevante Erkenntnisse miteinander zu verknüpfen. Die vorliegende Studie untersucht die Bedeutung des Mediums der Reflexion (eigenes Video vs. fremdes Video vs. Protokoll) sowie der Art der reflektierten Unterrichtssituation (positiv vs. herausfordernd) für die Reflexionsprozesse Lehramtsstudierender. Darüber hinaus wird untersucht, auf welchen Ebenen (Basal‑, Sicht- und Tiefenstrukturen) das Unterrichtsgeschehen reflektiert wird. Datengrundlage der quasi-experimentellen Studie sind Unterrichtsreflexionen von 55 Lehramtsstudierenden, die inhaltsanalytisch ausgewertet wurden. Die Ergebnisse zeigen, dass Lehramtsstudierende die Tiefenstrukturen des Unterrichts reflektieren, wenn die Reflexion von Situationen, die als positiv erlebt wurden, anhand fremder Unterrichtsvideos geschieht. Bei der Reflexion von herausfordernden Unterrichtssituationen werden Tiefenstrukturen sowohl anhand von fremden Videos als auch anhand von Protokollen reflektiert. Die Implikationen der Ergebnisse für die Lehrkräftebildung werden im Hinblick auf die Reflexion von Unterrichtspraxis diskutiert.
Ökonomische Bildung digital
(2021)
Spannung mit dem Strom-Quiz
(2021)
Training OC
(2021)
The course design "Training OC" for training the application of basic concepts consists of four topics: formula language, structure-property relations, reaction mechanisms, and complex tasks that the students should solve with the conceptual knowledge they acquired in the first three topics. A main goal of the course was to enable the students to solve reaction mechanisms. To achieve the goals of the course, several games were specially designed and used. The course was conducted at a German university with ca. 30 students who participated voluntarily. The course was evaluated by several tools: students' products were collected in the course, there were two pre/post-tests, and additionally, interviews on the strategy of designing reaction mechanisms were conducted. The performance of the teacher and the self-assessment of the students were also part of the evaluation. The results of the written exam were compared with the results of the bachelor chemistry major students. The course "Training OC" was rated very well by the students. They were of the opinion that they learned the application of basic concepts taught in this course. This is supported by the results of the evaluation and the written exams. The course concept of Training OC will therefore become a permanent part of the course "Organic Chemistry I" which will be redesigned for the next round in 2020-21.
Generated-X LMS (GXLMS)
(2021)
The quality of the reference signal is essential for the adaptation process of an LMS or one of its derivatives. The reference signal affects the stability, the convergence rate and the maximum achievable attenuation. Since the error signal and the control signal are available as numerical values in the algorithm for the LMS, the reference signal can be calculated from both signals. The error signal is the interference between the control signal and the reference signal. This interference of the control signal and the reference signal can be noted mathematically as a simple addition. It is therefore possible to deduce the reference signal from a known error signal and control signal. This approach is the basis of the generated-x LMS (GxLMS) developed by us. It calculates the reference signal itself without having to rely on an externally supplied reference signal. The advantages of the GxLMS are primarily in fields where the reference signal is difficult or impossible to detect. For example, the detection of the reference signal can be problematic due to design reasons or measurement technology. For example, flow noise could have a negative effect on an acoustic detection of the reference signal. However, the calculation of the reference signal in the GxLMS represents a further feedback signal path, which affects the stability of the algorithm as a whole. Based on the theoretical principles mathematically sufficient convergence conditions can be formulated taking into account the delays existing in the signal paths. The experimental testing took place on an acoustic duct with monofrequency disturb signals. Since the use of an efficient design of experiments (DoE) could be excluded, the measurement was designed as parameter variation (one factor at time) and therefore very time-consuming. The theoretical background of the GxLMS as well as the results from the experiments are presented.
Dieses open access-Buch analysiert den Zusammenhang von Berufsorientierung und politischer Bildung von Jugendlichen. Der Anspruch der Mündigkeitsbildung stellt die Ausgangsposition für die Vorstellungsforschung subjektiver Sinnbilder über die Berufs- und Arbeitswelt von Jugendlichen in der Sekundarstufe I dar. Dabei zeichnen sich Unterschiede in den Vorstellungen entlang der Trennlinien von sozioökonomischem Hintergrund, Herkunft, Geschlecht und Schulform ab. Die empirische Studie liefert wichtige Erkenntnisse zu den Vorstellungen und Handlungsmöglichkeiten von Schüler*innen und hilft zu verstehen, wovon diese abhängen und welche didaktischen Ansätze sich für die Berufsorientierung ableiten lassen.