"Backpulver" und das Prinzip von Le Chatelier

Schmidt, Andreas; Freienberg, Julia; Flint, Alfred

doi:10.1002/1521-3730(200207)9:3<142::aid-ckon142>3.0.co;2-s

Cited by 3 publications

(3 citation statements)

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“…In certain previous studies, materials such as carbonate (Schmidt et al, 2002), cola (Schunk et al, 2008), soap (Martin, 1997), and various cleansing materials (Rossow & Flint, 2007) have been used in student experiments. Furthermore, transforming learning environments into settings, where ideas and knowledge can be openly discussed, will make it easier for students to associate classes with daily life (Gilbert et al, 2011).…”

Section: Discussionmentioning

confidence: 83%

Evaluation of the Uses of Acids and Bases in Daily Life from an Educational Standpoint

Kaçan¹,

Çelikler²

2016

JSE

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The aim of this study was to determine the level of knowledge of science teacher candidates attending a public university in Northern Turkey about the uses of acids and bases in daily life. The study was performed with 43 first-year student volunteers, from the Department of Science Teaching. The students were asked three open-ended questions that required them to write down examples of where acids and bases are used in daily life, and of the ways in which acids and bases may negatively impact daily life. The study results indicated that all students listed lemon as an example of acid in daily life, and soap as an example of base in daily life. However, it was noted that only a few of the students knew the actual acid and base compounds these items contain. In addition, some of the students described bleach as an acid, illustrating that their knowledge on acids and bases was incorrect. Moreover, some of the students participating to the study were not able to describe the uses of bases in daily life or their possible negative impacts, which indicated a significant lack of knowledge on the subject.

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Section: Discussionmentioning

confidence: 83%

Evaluation of the Uses of Acids and Bases in Daily Life from an Educational Standpoint

Kaçan¹,

Çelikler²

2016

JSE

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“…After the context-based chemistry implementations conducted in the research, preservice chemistry teachers think that it is necessary to be more conscious when it comes to the daily life chemistry. After the result of the work carried out by Schmidt, Freienberg, and Flint (2002), following the activities themed the daily life chemistry, semi-structured interviews were had with the students. In general, the students stated that they were so pleasant about the activities and such daily life themed activities should be made more often.…”

Section: Conclusion and Discussionmentioning

confidence: 99%

The Effect of Context-Based Learning on the Attitude Towards the Daily Life Chemistry

ibad¹

2018

Journal of International Scientific Researches

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While such traditional approaches have dominated mainstream chemistry classrooms throughout the last 20 years, an alternative approach to chemistry teaching has emerged in a minority of classrooms during this time. These pedagogical approaches fall under the umbrella of 'context-based' teaching and have been trialled in an attempt to make the learning of chemistry meaningful for students by situating the learning in students' realworlds. Every day, more studies focus on teaching models, methods and strategies shaped around active learning-based approaches. One of the teaching methods promoting active participation of students in their learning processes is the "Context-based Learning Model". The research aims to analyse the effects of the chemistry experiments, which have been prepared according to context-based learning, on the daily life chemistry attitudes of preservice chemistry teachers. The sampling of the study consisted of 17 preservice chemistry teachers studying at Hacettepe University, Faculty of Education.This is a two-dimensional research study where qualitative and quantitative research methods are used together.The effects of designed experiments and materials on preservice chemistry teachers' attitudes towards everyday life chemistry will be examined. The study was participated by 17 preservice chemistry teachers studying at Hacettepe University, Faculty of Education. This study was conducted using the pre-posttest design involving a treatment group. The treatment group was taught within the context-based teaching model. The scores obtained by participating groups from The Attitudes towards Chemistry Scale (Koçak, 2014).

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“…Bei dem Experiment wird üblicherweise beobachtet, wie sich bei hohen Temperaturen Gase bilden. Dabei wird das Experiment im Kolbenprober durchgeführt [7] und der entstehende Gasdruck drückt den Stempel nach außen. Beim Abkühlen nimmt das Volumen ab, wodurch der äußere Luftdruck den Stempel wieder nach innen drückt.…”

Section: Temperaturabhängigkeit Der Bildung Und Zersetzung Von Hirsch...unclassified

Hirschhornsalz (baker's ammonia) and the chemical equilibrium – experiments using digital pressure sensors

Rautenstrauch

Rebenstorff

2023

Chemkon

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Digitale Messsensoren bieten das Potential, schwer verständliche oder schwer beobachtbare Phänomene, wie die Bildung farbloser Gase oder die Erhöhung oder Erniedrigung des Drucks, während einer chemischen Reaktion sichtbar und somit besser begreifbar zu machen. Zudem kann durch den Einsatz digitaler Messsensoren ein neuer Blick auf altbewährte Experimente ermöglicht werden. In diesem Beitrag werden dazu Experimente zum chemischen Gleichgewicht mit Hirschhornsalz unter Verwendung eines digitalen Drucksensors vorgestellt.

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"Backpulver" und das Prinzip von Le Chatelier

Cited by 3 publications

References 0 publications

Evaluation of the Uses of Acids and Bases in Daily Life from an Educational Standpoint

Evaluation of the Uses of Acids and Bases in Daily Life from an Educational Standpoint

The Effect of Context-Based Learning on the Attitude Towards the Daily Life Chemistry

Hirschhornsalz (baker's ammonia) and the chemical equilibrium – experiments using digital pressure sensors

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