Chemistry Teacher International : best practices in chemistry education最新文献

Analysis of the relationship between students’ argumentation and chemical representational ability: a case study of hybrid learning oriented in the environmental chemistry course 学生论证能力与化学表征能力的关系分析——以环境化学课程混合式学习为例

Chemistry Teacher International : best practices in chemistry education Pub Date : 2023-11-14 DOI: 10.1515/cti-2023-0047

Dimas Gilang Ramadhani, Sri Yamtinah, Sulistyo Saputro, Sri Widoretno

{"title":"Analysis of the relationship between students’ argumentation and chemical representational ability: a case study of hybrid learning oriented in the environmental chemistry course","authors":"Dimas Gilang Ramadhani, Sri Yamtinah, Sulistyo Saputro, Sri Widoretno","doi":"10.1515/cti-2023-0047","DOIUrl":"https://doi.org/10.1515/cti-2023-0047","url":null,"abstract":"Abstract Engaging students in collaborative learning fosters the expression of ideas, deepens understanding, and hones argumentation skills. Argumentation is pivotal, and instructors should facilitate opportunities for its practice. In the study on an environmental chemistry course, class conversations were recorded to analyze students’ contributions to online learning. Participants shared opinions, raised objections, and built on others’ answers. The instructor played a crucial role in harmonizing collaboration and guiding comprehensive argumentation. The study found claims and data as the most basic and common elements of argumentation. However, more complex components like rebuttal and backing warrants often need instructor intervention. While claims and data typically relied on one form of representation, such as macroscopic or symbolic, warrants demanded multiple dimensions, predominantly symbolic and submicroscopic. Toulmin’s arguments and Mahaffy’s tetrahedral ability of chemical representation were used for analysis. The findings highlighted that argumentation skills and chemical representation are intertwined, with certain argumentative components calling for specific representational dimensions. Collaborative online learning, thus, can enhance student participation and multifaceted skill development.","PeriodicalId":93272,"journal":{"name":"Chemistry Teacher International : best practices in chemistry education","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136229566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

University and local recyclable material cooperative – building bridges around e-waste 大学与当地可回收材料合作，为电子垃圾搭建桥梁

Chemistry Teacher International : best practices in chemistry education Pub Date : 2023-11-13 DOI: 10.1515/cti-2023-0048

Janaina C. L. Fonseca, Jose Marcelo Wendling Junior, Gabriel R. Eugenio, Cintia D. F. Milagre

{"title":"University and local recyclable material cooperative – building bridges around e-waste","authors":"Janaina C. L. Fonseca, Jose Marcelo Wendling Junior, Gabriel R. Eugenio, Cintia D. F. Milagre","doi":"10.1515/cti-2023-0048","DOIUrl":"https://doi.org/10.1515/cti-2023-0048","url":null,"abstract":"Abstract An e-waste outreach project was developed with two overriding goals: (1) to strengthen the partnership between the university and the local recyclable material cooperative, which has been carrying out actions aimed at supporting the work of the Cooperative, and (2) to collaborate in the expansion of environmental education activities in the process of social and economic insertion of collectors and the reduction of environmental impacts. During this process, the materials and corresponding activities related to the theoretical and practical course followed by the cooperative workers were developed by a transversal team of (under)graduate students, faculty, and staff from the Chemistry, Electric Engineering, and Public Administration areas. In addition, social media materials were created to sensibilize and engage the university community regarding effective e-waste awareness, to adhere to the voluntary drop-off point of e-waste collection, and to address the issues that can affect our environment and health if e-waste is sent to landfills. It was an example of how chemistry contributes to the Sustainable Development Goals through an outreach project.","PeriodicalId":93272,"journal":{"name":"Chemistry Teacher International : best practices in chemistry education","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134993084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Designing a learning environment based on the spiral of skills to overcome the didactic obstacles associated with teaching the Daniell cell 设计一个基于技能螺旋的学习环境，以克服与教授丹尼尔细胞相关的教学障碍

Chemistry Teacher International : best practices in chemistry education Pub Date : 2023-11-13 DOI: 10.1515/cti-2023-0049

Mourad Mennani, Khadija Raouf, Abderrahim Khyati

{"title":"Designing a learning environment based on the spiral of skills to overcome the didactic obstacles associated with teaching the Daniell cell","authors":"Mourad Mennani, Khadija Raouf, Abderrahim Khyati","doi":"10.1515/cti-2023-0049","DOIUrl":"https://doi.org/10.1515/cti-2023-0049","url":null,"abstract":"Abstract In a teaching context based on the competency approach, the creation of an appropriate teaching-learning environment requires, among other things, teachers to master the meaning of the concepts taught and teaching-learning activities designed according to the constructivist approach and the investigative approach. In this article, we focused on the operating principle of the Daniell cell. The research study involved identifying the epistemological gaps of 58 future teachers in relation to the concepts describing the previous theme via an open questionnaire, as well as the degree of compliance of the activities proposed in the textbook with the curricular guidelines. The main results showed that the respondents had not mastered the meaning of the positive and negative poles of a cell or the concept of its electrical voltage. With regard to the textbook studied, we found that the design of the activities did not comply with the principles of the competency-based approach and the spiral progression of knowledge. To overcome these constraints, we propose pedagogical designs aimed at reinforcing and developing the skills of teachers and learners while progressing in the spiral of knowledge.","PeriodicalId":93272,"journal":{"name":"Chemistry Teacher International : best practices in chemistry education","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134993513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Does it occur or not? – A structured approach to support students in determining the spontaneity of chemical reactions 它是否会发生?-一种结构化的方法来帮助学生确定化学反应的自发性

Chemistry Teacher International : best practices in chemistry education Pub Date : 2023-11-03 DOI: 10.1515/cti-2022-0046

Elisabeth Hofer, Rosina Steininger

{"title":"Does it occur or not? – A structured approach to support students in determining the spontaneity of chemical reactions","authors":"Elisabeth Hofer, Rosina Steininger","doi":"10.1515/cti-2022-0046","DOIUrl":"https://doi.org/10.1515/cti-2022-0046","url":null,"abstract":"Abstract Thermodynamics is a central topic of chemistry as it holds a crucial role in understanding chemical processes. Due to its complexity, level of abstraction and amount of “mathematics”, chemical thermodynamics is one of the most challenging subjects resulting in a huge number of inappropriate conceptions. To determine whether a chemical reaction is spontaneous in a particular direction, students need to apply a huge amount of chemical knowledge when completing a complex, multi-step thinking process. In a Design-Based Research project, we developed “unmathematical” instructional material that aims at supporting students in accomplishing this demanding task. By providing a step-by-step instruction and incorporating scaffolding measures, students are guided through four successive tasks. The material was implemented in more than ten upper secondary chemistry classes and four teacher education courses and was proved to be proper for independent work, supporting students in connecting thermodynamics to basic chemical knowledge. Working on the material enables students to overcome barriers in the field of chemical thermodynamics and to successfully complete tasks in the area of thermodynamics and physical chemistry. Teachers can easily adapt the material to specific contents, levels, and teaching requirements. Further, the supportive material can be applied to offer differentiated and individualised learning paths.","PeriodicalId":93272,"journal":{"name":"Chemistry Teacher International : best practices in chemistry education","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135776673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Relativistic effects on the chemistry of heavier elements: why not given proper importance in chemistry education at the undergraduate and postgraduate level? 相对论对重元素化学的影响:为什么在本科和研究生阶段的化学教育中不给予适当的重视?

Chemistry Teacher International : best practices in chemistry education Pub Date : 2023-10-31 DOI: 10.1515/cti-2023-0043

Ankita Das, Udita Das, Ruhi Das, Asim K. Das

引用次数: 0

Student exploration of the Henderson-Hasselbach equation and pH readings to determine the pK _a value of 4,4′-trimethylenedipiperidine (TMDP) 学生探索Henderson-Hasselbach方程和pH读数来确定4,4 ' -三亚甲基二哌替啶(TMDP)的pK值

Chemistry Teacher International : best practices in chemistry education Pub Date : 2023-10-30 DOI: 10.1515/cti-2023-0036

Lia Zaharani, Nader Ghaffari Khaligh

{"title":"Student exploration of the Henderson-Hasselbach equation and pH readings to determine the pK a value of 4,4′-trimethylenedipiperidine (TMDP)","authors":"Lia Zaharani, Nader Ghaffari Khaligh","doi":"10.1515/cti-2023-0036","DOIUrl":"https://doi.org/10.1515/cti-2023-0036","url":null,"abstract":"Abstract This educatory experiment uses an inexpensive pH meter to determine an approximate negative logarithm of the acid dissociation constant (p K a ) value of 4,4′-trimethylenedipiperidine (TMDP). Using a pH meter and statistical data analysis by Excel tool presents an excellent opportunity to deepen student engagement with the Henderson-Hasselbalch equation and acid/base dissociation constant ( K a / K b ). Furthermore, students understand the importance determination of K a / K b and its relationship with the concentration and strength of acid/base. Four different concentrations of TMDP aqueous solutions were prepared and a series of pH readings were collected using a calibrated pH meter. Some statistical parameters were calculated and analyzed using the statistical program in Excel. Finally, students identified an unknown p K a for TMDP and compared their obtained value with a predicted p K a using software like ChemAxon. The experiment is inexpensive, safe, simple, and clean, and less experienced students can perform it. In addition, all pH recordings can be readily accessible for analysis and descriptive statistics by the Excel formula.","PeriodicalId":93272,"journal":{"name":"Chemistry Teacher International : best practices in chemistry education","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136103093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Chemistry saving lives: using First World War Hypo helmets to avoid chlorine poisoning 化学拯救生命:使用第一次世界大战的Hypo头盔避免氯中毒

Chemistry Teacher International : best practices in chemistry education Pub Date : 2023-10-30 DOI: 10.1515/cti-2023-0046

Ryo Horikoshi, Souma Yoshida

引用次数: 0

An exploration of the proton NMR problem-solving approaches of undergraduate students 本科生质子核磁共振解题方法探讨

Chemistry Teacher International : best practices in chemistry education Pub Date : 2023-10-19 DOI: 10.1515/cti-2023-0026

Sujani Gamage, Suazette Mooring

{"title":"An exploration of the proton NMR problem-solving approaches of undergraduate students","authors":"Sujani Gamage, Suazette Mooring","doi":"10.1515/cti-2023-0026","DOIUrl":"https://doi.org/10.1515/cti-2023-0026","url":null,"abstract":"Abstract Problem-solving is an important component of chemistry teaching and learning. It often requires both conceptual knowledge and problem-solving skills. This study aims to examine how students solve tasks related to proton 1 H NMR spectroscopy. This study included 24 voluntary participants enrolled in second-semester organic chemistry labs in two different instructional settings (online or in person). The data were collected through interviews conducted via Webex video conferencing software and used a think-aloud protocol. The data were analyzed using an inductive coding approach to identify students’ problem-solving approaches and resources they used when solving a given 1 H NMR task that involved matching protons in a compound to specific peaks in the spectrum. The resources framework was used to capture students’ conceptual resources and problem-solving approaches. Results revealed that participants used more productive approaches than unproductive approaches while solving the problem; however, most students relied on one basic NMR concept to draw conclusions about the identity of a given peak. Also, when we observed the problem-solving resources that students utilized based on how they received NMR instruction (online or in-person), we did not observe major differences between the problem-solving resources that students used.","PeriodicalId":93272,"journal":{"name":"Chemistry Teacher International : best practices in chemistry education","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135667047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Chemical Quest: general knowledge and popular culture quizzes about the elements in a board game for the class 化学问题:一般知识和流行文化的问题，有关元素的棋盘游戏的班级

Chemistry Teacher International : best practices in chemistry education Pub Date : 2023-10-12 DOI: 10.1515/cti-2023-0045

Marco Bortoli, Antonella Balasso, Giovanni Carta, Maristella Cestaro, Viviana Colla, Alessandra De Togni, Giulio Gallani, Cristina Giacometti, Laura Gianni, Lucia Giuffreda, Manuela Granella, Marina Iarabek, Enrico Lion, Giuseppe Mazzi, Caterina Migale, Stefano Milan, Paola Molesini, Mara Moretto, Roberta Predonzan, Ornella Priolisi, Rosella Romualdi, Cristina Rubini, Sandra Scarfì, Elena Tobaldini, Marco Dalla Tiezza, Enrico Nale, Massimo Bellanda, Gordon Kennedy, Gianpietro Sella, Alessandro Lanza, Laura Orian

{"title":"Chemical Quest: general knowledge and popular culture quizzes about the elements in a board game for the class","authors":"Marco Bortoli, Antonella Balasso, Giovanni Carta, Maristella Cestaro, Viviana Colla, Alessandra De Togni, Giulio Gallani, Cristina Giacometti, Laura Gianni, Lucia Giuffreda, Manuela Granella, Marina Iarabek, Enrico Lion, Giuseppe Mazzi, Caterina Migale, Stefano Milan, Paola Molesini, Mara Moretto, Roberta Predonzan, Ornella Priolisi, Rosella Romualdi, Cristina Rubini, Sandra Scarfì, Elena Tobaldini, Marco Dalla Tiezza, Enrico Nale, Massimo Bellanda, Gordon Kennedy, Gianpietro Sella, Alessandro Lanza, Laura Orian","doi":"10.1515/cti-2023-0045","DOIUrl":"https://doi.org/10.1515/cti-2023-0045","url":null,"abstract":"Abstract Chemical Quest is an innovative trivia game based on the 102 elements of the periodic table from H to No, developed collaboratively by upper secondary school and university teachers with the aim of increasing the interest of young students (age 14–18) in chemistry. As part of the project, a software version of the game was successfully played in 24 classes. ‘Challenging, sometimes difficult, highly instructive, relaxing, captivating, ….’ are some of the positive comments by students and teachers. In addition, Chemical Quest was conceived to be adaptable since the rules can be modified and the cards can be selected to match the educational objective.","PeriodicalId":93272,"journal":{"name":"Chemistry Teacher International : best practices in chemistry education","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135963458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysing and developing linguistically responsive tasks within the frame-work of the cross-disciplinary Erasmus+ project sensiMINT 在跨学科伊拉斯谟+项目senmint的框架内分析和开发语言响应任务

Chemistry Teacher International : best practices in chemistry education Pub Date : 2023-10-04 DOI: 10.1515/cti-2022-0041

Anja Lembens, Rita Elisabeth Krebs

{"title":"Analysing and developing linguistically responsive tasks within the frame-work of the cross-disciplinary Erasmus+ project sensiMINT","authors":"Anja Lembens, Rita Elisabeth Krebs","doi":"10.1515/cti-2022-0041","DOIUrl":"https://doi.org/10.1515/cti-2022-0041","url":null,"abstract":"Abstract Scientific literacy is required to judge and act in an informed and responsible manner. Science education strives to enable learners to become scientific literate. To achieve this, there are science-specific and linguistic challenges to overcome. When teaching and learning chemistry, it is important to be aware that language varies according to the discourse topic, the relationship between the interlocutors, and the medium of communication. In the context of chemistry education, students are meant to learn how to extract information from subject-specific text-types such as lab reports, diagrams, etc., and to produce them autonomously. To do so, understanding and applying the conventions of academic language and the subject-specific scientific registers is necessary. To deal with these challenges, the Erasmus+ project sensiMINT was initiated to support both teachers and learners. In cross-disciplinary communities of practice, linguistically responsive tasks are analysed, developed, and refined. The paper presents the theoretical background and introduces genre charts of different chemistry-specific text-types as constructed by the sensiMINT experts. The application of the genre charts for understanding and producing chemistry-specific text-types is demonstrated with concrete examples.","PeriodicalId":93272,"journal":{"name":"Chemistry Teacher International : best practices in chemistry education","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135547561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0