TY  - JOUR
A1  - Hermanns, Jolanda
A1  - Keller, David
T1  - The development, use, and evaluation of digital games and quizzes in an introductory course on organic chemistry for preservice chemistry teachers
JF  - Journal of chemical education / Division of Chemical Education, Inc., American Chemical Society
N2  - Due to the COVID pandemic, the introductory course on organic chemistry was developed and conducted as anonline course. To ensure methodical variety in this course,educational games and quizzes have been developed, used, and evaluated. The attendance of the course, and therefore also the use of the quizzes and games, was voluntary. The quizzes'main goalwas to give the students the opportunity to check whether they had memorized the knowledge needed in the course. Another goal was to make transparent which knowledge the students shouldmemorize by rote. The evaluation shows that the students hadnot internalized all knowledge which they should apply in severaltasks on organic chemistry. They answered multiselect questions in general less well than single-select questions. The games shouldcombine fun with learning. The evaluation of the games shows that the students rated them very well. The students used thosegames again for their exam preparation, as the monitoring of accessing the games showed. Students'experiences with usingelectronic devices in general or for quizzes and games have also been evaluated, because their experience could influence thestudents'assessment of the quizzes and games used in our study. However, the students used electronic devices regularly and shouldtherefore be technically competent to use our quizzes and games. The evaluation showed that the use of digital games for learningpurposes is not very common, neither at school nor at university, although the students had worked with such tools before. Thestudents are also very interested in using and developing such digital games not only for their own study, but also for their future work at school
KW  - Organic Chemistry
KW  - Second-Year Undergraduate
KW  - Humor
KW  - Puzzles
KW  - Games;
KW  - Internet
KW  - Web-Based Learning
KW  - Distance Learning
KW  - Self Instruction
Y1  - 2022
U6  - https://doi.org/10.1021/acs.jchemed.2c00058
SN  - 0021-9584
SN  - 1938-1328
VL  - 99
IS  - 4
SP  - 1715
EP  - 1724
PB  - American Chemical Society
CY  - Washington
ER  - 
TY  - JOUR
A1  - Erdmann, Julius
T1  - Semiotics of Pictorial Signs on Social Networking Sites
BT  - Remarks on a Neglected Field of Study
JF  - Punctum : international journal of semiotics
N2  - The paper aims at considering characteristics from one field of contemporary visual studies that has for a long time been neglected in academic research: Pictorial signs on Social Network Sites (SNS) are an outstanding class of semiotic resources that is greatly shaped by processes of technological and collective sign production and distribution. A brief examination of the scholarly research on the pragmatics and semiotics of pictorial signs on SNS shows that the heterogeneity of visual signs is often neglected and that it mostly concentrates on one aspect of these pictorial signs: their technological production or their purpose for individual self-disclosure. The paper therefore considers the semiosis of pictorial signs on SNS in a holistic perspective as one the one hand produced by individual and collective meaning making as well as on the other hand a product of technological framing. It therefore develops a techno-semiotic pragmatic account that takes into consideration both processes. Starting from a prominent class of pictorial signs on SNS during Tunisian Revolution, the Tunisian Flag graphics, the paper than shows that communicative and social interaction functions on the graphic interface of SNS (‘like’-function, sharing and commenting option) are not only directly inscribed into the pictorial frame, but also greatly influence the reading of a pictorial sign. The location of images on the SNS’ interface has an impact on its meaning and on the social functions of a pictorial sign, as profile pictures are directly linked to the online identity of the user. Through technological sign processing, the polysemy of the image is reduced. We therefore consider the images on the one hand as individual self-narratives and on the other as instances of SNS’ visual culture that brings out dominant visual codes but also allows social and political movements to spread.
KW  - Internet
KW  - Social Networking Sites
KW  - visual culture
KW  - socio-semiotics
KW  - Tunisian Revolution
Y1  - 2015
U6  - https://doi.org/10.18680/hss.2015.0003
SN  - 2459-2943
VL  - 1
IS  - 1
SP  - 26
EP  - 42
PB  - Hellenic Semiotic Society
CY  - Thessaloniki
ER  -