scholarly journals Research on the Application of qeffective Previewq Teaching method based on Mobile Communication equipment in Organic Chemistry Teaching

Author(s):  
Ling Chen ◽  
Feie Fu
2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Nicole Graulich ◽  
Ira Caspari

AbstractDesigning problems and learning activities is a key factor to initiating students’ engagement with the course material and influencing their reasoning processes. Although tasks and problems are a central part of teaching and assessments in the chemistry classroom, they may not engage students in deep reasoning or in a way that is intended through a task. Some problems may cause an algorithmic or a surface approach. Even with designing clever problems, students may not use a larger variety of chemistry ideas and connect them in meaningful ways. Here the idea of scaffolding students’ answering process comes into play. Structuring students’ reasoning process through instructional prompts or structured worksheets supports students in activating and connecting knowledge pieces in a more meaningful way and positively slows down their fast decision-making process. This paper will discuss the importance of asking questions in chemistry teaching and highlights the idea of contrasting cases, drawn from cognitive psychology, as a task design principle. In addition to having contrasting cases as a good problem format, the idea of scaffolding students’ reasoning while solving contrasting cases through the use of instructional prompts that scaffold the reasoning process will be exemplarily showcased for mechanistic reasoning in organic chemistry.


2019 ◽  
Vol 16 (32) ◽  
pp. 919-929
Author(s):  
J. V. GOMES ◽  
F. V. DA SILVA ◽  
D. F. M. DO CARMO ◽  
P. J. S. MAIA

Conventional methods employed to teach chemistry imply a lot of memorization and very little contextualization, i.e., they fail to connect chemistry concepts to students’ everyday lives, which causes them to lose motivation and interest in learning the subject. In order to change this scenario, new methods have been proposed for the teaching of chemistry, such as playful experimentation, to foster contextualization of content and integration with content from other subjects. This study has aimed to evaluate student learning of chemistry concepts by means of experimentation associated to forensic science. To this end, first, students’ previous knowledge of the content was assessed by means of a questionnaire prior to the intervention. Then, they were given a problem-situation, a fictitious crime, which they had to solve. The results indicate that the teaching method under investigation is an effective teaching-learning strategy capable of contextualizing and adapting chemistry concepts to students’ cultural background, since TV crime series have become hugely popular among teenagers.


2019 ◽  
Vol 8 (2) ◽  
pp. 26
Author(s):  
Mengran Li

<p>Graph is not only the teaching content, vivid, informative and highly relevant knowledge, but also a teaching method in junior high school chemistry teaching. It can show concepts and changes in multiple dimensions, help students overcome learning obstacles and make their thinking explicit.</p>


2017 ◽  
Vol 94 (9) ◽  
pp. 1265-1271 ◽  
Author(s):  
Matthew R. Penny ◽  
Zi Jing Cao ◽  
Bhaven Patel ◽  
Bruno Sil dos Santos ◽  
Christopher R. M. Asquith ◽  
...  

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