Integrating Lecture and Laboratory Work for a Materials Chemistry Course to Engage and Motivate Students through Highly Visual and Intriguing Syntheses

Molvinger, Karine; Ayral, Rose Marie; Filhol, Jean‐Sébastien

doi:10.1021/acs.jchemed.9b00615

Cited by 7 publications

(9 citation statements)

References 25 publications

(43 reference statements)

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“…The Genius sessions were evaluated by an external board of high school/university teachers and research staff that were always pleased to observe a high involvement of the students in both the accomplished work and presentation compared to more usual programs. The general assessment of the "Chimie Magique" approach on students outcomes was recently carefully evaluated 7 and show a very positive impact. A very specific benefit from this project is to demonstrate that in research you can start with the wrong idea (i.e.…”

Section: Hydrothermal Microwave Synthesismentioning

confidence: 99%

“…Thus, these syntheses are very good tools to gain students interest and to quickly investigate change in the reaction conditions. For more than fifteen years the "Chimie: Science Magique" 7 program has been designing high impact laboratory experiments, involving undergraduate students in the research process. [8][9][10] This inquiry-based approach 7,11,12 was applied to the synthesis of Maya blue and derivatives.…”

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confidence: 99%

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The Hunt for Maya Purple: Revisiting Ancient Pigments Syntheses and Properties

2021

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Syntheses of analogues of historical indigo and Maya blue pigments using an inquiry-based approach ispresented. Derivatives of indigo were synthetized (in particular Tyrian purple) and used as vat dyes for dyeing cotton or wool fabrics or mixed with a sepiolite clay to create new hues or colors of Maya blues using a green chemistry hydrothermal microwave synthesis. The hydrothermal approach allows a very quick preparation of Maya analogue pigments (typically one hour) while illustrating a green chemistry approach. The obtained Maya pigments can have very different colors (or not) from their initial indigo derivative and furthermore undergo color change under annealing (thermochromism) or mechanical grinding (tribochromism). In particular, the Tyrian purple/sepiolite chromism allows a direct visual illustration for students of the structural changes in sepiolite host-matrix associated with its pores closure and water loss.

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Section: Hydrothermal Microwave Synthesismentioning

confidence: 99%

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confidence: 99%

The Hunt for Maya Purple: Revisiting Ancient Pigments Syntheses and Properties

2021

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“…Under normal circumstances, both courses are specifically designed to be synchronous with the lecture component. Concepts introduced in lecture are to be experienced first-hand in lab for learning at a deeper, more personal level that benefits reflection activities. − To this end, the organic laboratories uploaded all course materials to the LMS including video recordings of lectures whereas the analytical laboratories had content uploaded but not lecture recordings as students were expected to attend lecture sessions for all material since the start of the semester.…”

Section: Addressing the Four Shared Challenges Faced In The Distance ...mentioning

confidence: 99%

A Tale of Two Lab Courses: An Account and Reflection on the Teaching Challenges Experienced by Organic and Analytical Chemistry Laboratories During the COVID-19 Period

2020

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A comparison of the experiences of both organic and analytical lab faculty during the COVID-19 pandemic distance learning initiative is described here. Faculty of both lab courses experienced four shared challenges in the transition to the online format: (1) experimental implementation, (2) assessments and postlab activities, (3) technological inequalities, and (4) synchronization of student attendance. Edited video content of the experiments was created for the organic laboratories but not for the analytical laboratories due to a lack of time and resources. A guided-inquiry activity used to engage organic chemistry students in the determination of the relative reaction rates of substitution reactions appeared to be less successful in the online environment for the students. Analytical lab faculty described using online guided data analysis problems to encourage students to keep up with the content and learn from their mistakes to further prepare themselves for related content in the activities that followed. Extended due dates were given on postlab assignments to mitigate technical issues encountered by the students. Interactive lab experiences for organic chemistry laboratories and hybrid laboratories for analytical chemistry laboratories are proposed for future semesters. Both courses implemented flexible scheduling of lectures, office hours, and workshops to offset student concerns.

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“…These laboratory experiments allow students to plan and participate in investigations or participate in activities that improve their technical laboratory skills. These technical skills are observation skills, hypothesis skills, and communication skills (Hofstein, 2017;Molvinger et al, 2020;Rodriguez & Towns, 2018).…”

Section: Introductionmentioning

confidence: 99%

Implementation of digital performance assessment to measure pharmacy physics laboratory skills

Dhina

Hadisoebroto

Mubaroq

et al. 2021

Momentum: Physics Education Journal

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This study was motivated by the fact that laboratory skills assessment did not have a specific standard for each assessment. Student performance and skills in doing practicum are not well observed and measured. Meanwhile, the assessment of skills in pharmaceutical physics laboratory learning is considered important. An alternative assess-ment that can measure pharmaceutical physics laboratory skills is to use performance assessment. This research has integrated the work assessment in digital form with the existing web-based electronic module (e-mulsi). Application testing needs to be done to determine the digital performance assessment's effectiveness in assessing the pharmacy physics laboratory's skills. A system test and user test do this. System testing is done by white box testing. Meanwhile, user testing is carried out with an instrument in the form of a questionnaire to laboratory assistants and lecturers as users of the application's per-formance assessment application. The digital performance assessment system's perform-ance test results using GTMetrix ranged from 85% - 62%. This performance assessment application greatly helped the results of the questionnaire for laboratory assistants and lecturers. It greatly facilitated the archiving of each students process in the form of an information technology data base. Lecturers also find it very helpful because the value processing process is easier for applications to do, reducing data processing errors.

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Integrating Lecture and Laboratory Work for a Materials Chemistry Course to Engage and Motivate Students through Highly Visual and Intriguing Syntheses

Cited by 7 publications

References 25 publications

The Hunt for Maya Purple: Revisiting Ancient Pigments Syntheses and Properties

The Hunt for Maya Purple: Revisiting Ancient Pigments Syntheses and Properties

A Tale of Two Lab Courses: An Account and Reflection on the Teaching Challenges Experienced by Organic and Analytical Chemistry Laboratories During the COVID-19 Period

Implementation of digital performance assessment to measure pharmacy physics laboratory skills

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