An Esterification Kinetics Experiment That Relies on the Sense of Smell

Lee, Deborah Bromfield; Oliver-Hoyo, María T.

doi:10.1021/ed086p82

Cited by 27 publications

(32 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Die Ester aus Alkanolen und Carbonsäuren spielen für das olfaktorische Schmecken eine erhebliche, häufig sogar maßgebliche Rolle. Demzufolge sind die Synthesen von Estern im Schülerexperiment, die Untersuchung der Reaktionskinetik und der Geruch ihrer Ester beschrieben worden [1].…”

Section: Hintergrundunclassified

Safe chemistry lessons – the check of substitute substances using the example of traditional solvents

Klemeyer

2021

Chemkon

View full text Add to dashboard Cite

Am Beispiel der Ester aus primären n‐Alkanolen mit unverzweigten gesättigten Carbonsäuren wird aufgezeigt, wie unter Anwendung des GHS‐Spaltenmodells zur Ersatzstoffprüfung sicherheitsoptimierte Synthesen für den Unterricht mit Schülerfreihandversuchen ausgewählt werden können. Es gelingt dabei, Situationen zu vermeiden, bei denen Stoffe mit einem hohen Freisetzungsverhalten, leichter Entzündbarkeit und chronischen Gesundheitsgefahren verwendet werden. Der Unterricht mit den Estern, die als natürliche Aromen bedeutsam sind, kann bei Schülerinnen und Schüler schon aufgrund der olfaktorischen und affektiven Wirkung sehr motivierend sein. Hier wird aufgezeigt, wie dies noch durch haptische und praktische Arbeiten unterstützt werden kann. Zudem wird für den Unterricht das Netzdiagramm als Hilfsmittel zur Beschreibung von Gerüchen vorgestellt.

show abstract

Section: Hintergrundunclassified

Safe chemistry lessons – the check of substitute substances using the example of traditional solvents

Klemeyer

2021

Chemkon

View full text Add to dashboard Cite

show abstract

“…Esterification is a common reaction conducted in the Organic laboratory, especially due to the appeal of the aromas of some esters (37)(38)(39)(40). In FSC labs, students have explored impacts of the substitution on nine benzoic acids and different reaction conditions (29).…”

Section: Esterification (Scheme 1)mentioning

confidence: 99%

Re-casting traditional organic experiments into green guided-inquiry based experiments: student perceptions

Lee

2019

Green Chemistry Letters and Reviews

View full text Add to dashboard Cite

Green Chemistry principles can be used to re-cast traditional Organic chemistry experiments into more guided-inquiry based experiments. Inquiry questions related to green chemistry principles and metrics have been incorporated into our laboratory for the development of more guidedinquiry based experiments. Re-casting traditional experiments provides time for guided-inquiry by allowing students to evaluate reaction conditions and wastefulness of reactions. This includes evaluating solvent choices, heating methods, use of renewal materials, and contemplating reactants and products impacts on human health and environment. Students examine the changes as it pertains to green chemistry, the success of the reaction and the potential impacts on the mechanism. Involving students in these discoveries rooted in a guiding question made the Organic experiments guided-inquiry. Students were surveyed about their exposure to green chemistry and guided-inquiry based labs. Examples of some of the re-casted experiments, excerpts from student reports, and student impressions of the theme are presented.

show abstract

“…Poon and Ovadia (2008) developed tactile-based teaching materials for the effective processing of chemistry courses. Bromfield- Lee and Oliver-Hoyo (2009) developed laboratory activity to help students better understand the esterification of chemistry using their sense of smell. Boyd-Kimball (2012) developed adaptive tools and teaching techniques for blind students studying at the undergraduate level chemistry department.…”

Section: Introductionmentioning

confidence: 99%

Science for Students with Visual Impairment: An Analysis of Hands-on Activity

Zorluoğlu¹,

Kizilaslan²,

Sözbilir³

2021

BUEFAD

View full text Add to dashboard Cite

Science courses are considered to be one of the most difficult courses since they contain difficult and abstract concepts for the individual who needs special education. Because traditional science teaching is mostly based on visual teaching. However, an effective science education can be done by making instructional adaptations and taking into account the individual needs of the students. In this study, the science activities and materials prepared by taking into consideration the needs of the students with visual impairment using the case study of qualitative research methods were made. the study sample consisted eight students including three blind and five students with low vision. The Activity Evaluation Scale (AES) was used to collect data. At the end, activities and materials were evaluated by teacher and independent researchers. In order to ensure the reliability of the study, the videos which were recorded during the course separately analyzed by the researchers, the AES was filled and then the analyses of the researchers were compared. As a result, it was determined that the science activity and materials prepared for the students with visual impairment can be useful in teaching the concepts of heat conductor and heat insulator.

show abstract

An Esterification Kinetics Experiment That Relies on the Sense of Smell

Cited by 27 publications

References 17 publications

Safe chemistry lessons – the check of substitute substances using the example of traditional solvents

Safe chemistry lessons – the check of substitute substances using the example of traditional solvents

Re-casting traditional organic experiments into green guided-inquiry based experiments: student perceptions

Science for Students with Visual Impairment: An Analysis of Hands-on Activity

Contact Info

Product

Resources

About