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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.
In this study, we investigated effects of morphological processing on handwriting production in beginning writers of German. Children from Grades 3 and 4 were asked to copy words from a computer screen onto a pen tablet, while we recorded their handwriting with high spatiotemporal resolution. Words involved a syllable-congruent visual disruption (e.g., "Golfer"), a morpheme-congruent visual disruption (e.g., "Golfer"), or had no disruption (e.g., "Golfer"). We analyzed productions in terms of Writing Onset Duration and Letter Duration at the onset of the second syllable ("f" in "Gol.fer") and the onset of the suffix ("e" in "Golf_er"). Results showed that durations were longer at word-writing onset only for words with a morpheme-congruent visual disruption. Also, letter durations were longer at the onset of the second syllable (i.e., "-fer") and shorter at the onset of the suffix (i.e., "-er") only for words with a syllable-congruent visual disruption. We interpret these findings within extant theories of handwriting production and offer an explanation for the observed effects before and during trajectory formation.
Universität
(2021)
When it comes to teacher attitudes towards teaching and learning, research relies heavily on explicit measures (e.g., questionnaires). These attitudes are generally conceptualized as constructivist and transmissive views on teaching and learning with constructivism often considered to be more desirable. In explicit measures, this can have drawbacks like socially desirable responding. It is for this reason that, in this study, we investigated implicit attitudes as well as explicit attitudes towards constructivism and transmission. N = 100 preservice teachers worked on a questionnaire and two Single-Target Implicit Association Tests (ST-IAT constructivism and ST-IAT transmission) before (T1) and after (T2) a single master’s semester. One group (n = 50) did student teaching while a second group (n = 50) took master’s courses. We evaluated preservice teachers’ views on teaching at the end of their masters’ studies. Participants agreed with transmission and constructivism (T1) on both an explicit and implicit level. Implicit measures seem to exceed explicit measures in differentially assessing constructivist and transmissive views on teaching and learning. After student teaching (T2), there was no overall effect of attitude development but changes in rank indicate that participants’ implicit attitudes towards constructivism and transmission developed differently for each individual.
When it comes to teacher attitudes towards teaching and learning, research relies heavily on explicit measures (e.g., questionnaires). These attitudes are generally conceptualized as constructivist and transmissive views on teaching and learning with constructivism often considered to be more desirable. In explicit measures, this can have drawbacks like socially desirable responding. It is for this reason that, in this study, we investigated implicit attitudes as well as explicit attitudes towards constructivism and transmission. N = 100 preservice teachers worked on a questionnaire and two Single-Target Implicit Association Tests (ST-IAT constructivism and ST-IAT transmission) before (T1) and after (T2) a single master’s semester. One group (n = 50) did student teaching while a second group (n = 50) took master’s courses. We evaluated preservice teachers’ views on teaching at the end of their masters’ studies. Participants agreed with transmission and constructivism (T1) on both an explicit and implicit level. Implicit measures seem to exceed explicit measures in differentially assessing constructivist and transmissive views on teaching and learning. After student teaching (T2), there was no overall effect of attitude development but changes in rank indicate that participants’ implicit attitudes towards constructivism and transmission developed differently for each individual.
Lern- und Leistungsemotionen sind im Schulkontext sowohl bedeutsam für die Motivation, das Wohlbefinden, die Leistungen als auch für die Anstrengungsbereitschaft sowie bildungs- und berufsrelevante Entscheidungen von Schülerinnen und Schülern (als Überblick siehe Frenzel, Goetz, & Pekrun, 2015; Hascher & Brandenberger, 2018). Studien verdeutlichen, dass schulische Leistungen von Lernenden bei hoher fachspezifischer Angst sinken (Aldrup, Klusmann, & Lüdtke, 2019; Pekrun, Lichtenfeld, Marsh, Murayama, & Goetz, 2017). Freude hat hingegen positive Auswirkungen auf das fachbezogene Interesse und Leistungen der Lernenden (Pekrun et al., 2017; Schukajlow & Rakoczy, 2016). Ausgehend von der großen Bedeutung von Emotionen für den langfristigen Bildungserfolg von Lernenden ist...
Emotionen von Lehrkräften gelten als wichtige Voraussetzung für eine effektive Unterrichtsgestaltung (Sutton & Wheatley, 2003), für das emotionale Erleben Lernender im Unterricht (Frenzel, Goetz, Lüdtke, Pekrun, & Sutton, 2009; Tam et al., 2019), aber auch für die Leistung Lernender (Kunter et al., 2013). Wie auch motivationale und kognitive Merkmale prägen die Emotionen von Lehrkräften folglich das berufliche Handeln von Lehrkräften maßgeblich (Kunter & Holzberger, 2014). Ein profundes Verständnis der Konsequenzen von Lehreremotionen für die Lehr-Lernprozesse von Schülerinnen und Schülern ist daher von zentraler Bedeutung, um Bedingungen erfolgreichen Unterrichtens zu verstehen. Verschiedene empirische Arbeiten haben vor diesem Hintergrund die Wirkungen einzelner...
Lern- und Leistungsemotionen sind im Schulkontext sowohl bedeutsam für die Motivation, das Wohlbefinden, die Leistungen als auch für die Anstrengungsbereitschaft sowie bildungs- und berufsrelevante Entscheidungen von Schülerinnen und Schülern (als Überblick siehe Frenzel, Goetz, & Pekrun, 2015; Hascher & Brandenberger, 2018). Studien verdeutlichen, dass schulische Leistungen von Lernenden bei hoher fachspezifischer Angst sinken (Aldrup, Klusmann, & Lüdtke, 2019; Pekrun, Lichtenfeld, Marsh, Murayama, & Goetz, 2017). Freude hat hingegen positive Auswirkungen auf das fachbezogene Interesse und Leistungen der Lernenden (Pekrun et al., 2017; Schukajlow & Rakoczy, 2016). Ausgehend von der großen Bedeutung von Emotionen für den langfristigen Bildungserfolg von Lernenden ist...
Ein wichtiges Ziel schulischer Bildung ist es, neben der kognitiven Entwicklung auch die Entwicklung nicht-kognitiver Lernmerkmale wie die Lernfreude von Schülerinnen und Schülern zu fördern (Hagenauer & Hascher, 2018; Prenzel, 2012; Schiepe-Tiska, Lüdtke, Seidel & Prenzel, 2016). Damit einher geht die Herausforderung für Lehrkräfte und Schulen, Lernprozesse so zu gestalten, dass Schülerinnen und Schüler den Prozess der Wissensaneignung als freudvoll erleben und individuell Neugier und Spaß am Lernen entwickeln können.
Lern-und Leistungsemotionen von Schülerinnen und Schülern haben eine maßgebliche Bedeutung für erfolgreiche Lernprozesse – sie gelten als leistungsförderlich, begünstigen schulisches Wohlbefinden und befördern die aktive Teilnahme von Lernenden am Unterricht
This study investigates the relationship between teacher quality and teachers’ engagement in professional development (PD) activities using data on 229 German secondary school mathematics teachers. We assessed different aspects of teacher quality (e.g. professional knowledge, instructional quality) using a variety of measures, including standardised tests of teachers’ content knowledge, to determine what characteristics are associated with high participation in PD. The results show that teachers with higher scores for teacher quality variables take part in more content-focused PD than teachers with lower scores for these variables. This suggests that teacher learning may be subject to a Matthew effect, whereby more proficient teachers benefit more from PD than less proficient teachers.