The Analysis of Dolomitic Marble: A Multifaceted Problem for General Chemistry Students

2022 ◽  
Author(s):  
A. M. Ranjika Priyadarshi Bopegedera
Keyword(s):  
General Chemistry ◽  
Dolomitic Marble ◽  
Chemistry Students

Using animations in identifying general chemistry students' misconceptions and evaluating their knowledge transfer relating to particle position in physical changes

2015 ◽  
Vol 16 (2) ◽  
pp. 273-282 ◽  
Author(s):  
K. Christopher Smith ◽  
Savannah Villarreal
Keyword(s):  
General Chemistry ◽  
Knowledge Transfer ◽  
Solvent Evaporation ◽  
Phase Changes ◽  
Physical Change ◽  
Chemistry Students ◽  
Particle Position ◽  
Melting Cycle ◽  
Freezing Cycle ◽  
Physical Changes

This article reports on the types of views and misconceptions uncovered after assessing 155 freshman general chemistry students on the concept of particle position during the reversible physical change of melting, using the Melting Cycle Instrument, which illustrates particulate-level representations of a melting–freezing cycle. Animations involving particulate-level representations of phase changes including melting and freezing were viewed and discussed, and the students were assessed a second time, on the concept of particle position during the reversible physical change of dissolving, using the Dissolving Cycle Instrument, which illustrates particulate-level representations of a dissolving-solvent evaporation cycle. Overall, the results of the assessments showed that some misconceptions did remain after viewing and discussing the animations, and that the use of the animations had no effect on the students' views on the movement of particles within the liquid.

scholarly journals Integrating Course Material and Application: A Progressive Writing Assignment Applied to an Astrochemistry Tutorial

2018 ◽  
Vol 2 (1) ◽  
Author(s):  
Olivia H Wilkins ◽  
Camillus F Buzard
Keyword(s):  
General Chemistry ◽  
Graduate Students ◽  
Chemistry Curriculum ◽  
Chemistry Students ◽  
Research Areas ◽  
Broader Impacts ◽  
Big Picture ◽  
Course Material ◽  
Writing Assignment ◽  
The Subject

A major challenge in teaching is helping students integrate course concepts to understand the big picture of a field and apply those concepts in new situations. To address this challenge in a tutorial course about astrochemistry (taught by graduate students to chemistry undergraduates), we implemented a progressive writing assignment that culminated in a final presentation. In the progressive writing assignment, students chose an astrochemistry topic they found interesting to be the subject of three sequential papers, which became the basis for their presentations. The purpose of this assignment was to gradually introduce chemistry students to research areas in astronomy, which is by nature outside the general chemistry curriculum, while also providing students with regular feedback. Over the course of the assignment, students applied key themes in the course—significance of astrochemistry research, research methods, and chemistry in astronomical environments—separately to their chosen topics before explaining in the final presentation how these different aspects of astrochemistry work together. By incorporating stories and anaologies, rather than just facts, students gave presentations that were accessible to a novice audience. As a result, students explained broader impacts of astrochemistry research, rather than just focusing on results, and they entertained questions with answers that went beyond clarification of the material discussed.

I realized what I was doing was not working: the influence of explicit teaching of metacognition on students’ study strategies in a general chemistry I course

2021 ◽  
Author(s):  
Caroline Z. Muteti ◽  
Carolina Zarraga ◽  
Brooke I. Jacob ◽  
Tuli M. Mwarumba ◽  
Dorothy B. Nkhata ◽  
...  
Keyword(s):  
General Chemistry ◽  
The United States ◽  
Study Strategies ◽  
Higher Order ◽  
Metacognitive Strategies ◽  
First Year ◽  
Final Exam ◽  
Chemistry Students ◽  
Explicit Teaching ◽  
The Impact

Many students transitioning from high school to college are faced with challenges of getting acclimated to college life and managing their time and heavy course load that is cognitively demanding. Students planning to major in science, technology, engineering, and mathematics (STEM) programs in the United States are mostly required to enroll in general chemistry courses as prerequisites. Unfortunately, these courses are among the STEM gateway courses in which many first-year students struggle to get through, or are weeded out. This is partly due to the use of ineffective study strategies that require more than rote memorization, a common learning approach in high schools. One way to prepare first-year college students for STEM trajectories is by teaching them metacognitive strategies early in their study programs to enable early adoption and sustainability of metacognition knowledge and metacognition regulation skills as they progress to the advanced courses. While a handful of studies have investigated study strategies among students in the general chemistry courses as well as the impact of metacognitive activities on student performance in chemistry, very few in-depth qualitative studies investigating the influence of explicit teaching of metacognition on students’ study strategies have been reported. Using open-ended questionnaires, this unique study investigated general chemistry students’ study strategies that they employed prior to a 50 minute metacognition lesson; strategies they reported to have gained from the instruction; and the influence of the metacognition instruction on students’ study strategies and performance in the final exam. Findings indicated more reported use of rote memorization over higher-order study strategies prior to the metacognition instruction, but more reported gains on higher-order study strategies and fewer strategies related to rote memorization immediately after the metacognition instruction. Furthermore, 67% reported a positive influence of the metacognition instruction on study strategies, with 7% lower DFs in the final exam compared to those who reported ‘no influence’. Findings revealed that most general chemistry students were unaware of effective study strategies; thus, there is a critical need to explicitly teach students in general chemistry courses metacognitive strategies.

Learning and studying strategies used by general chemistry students with different affective characteristics

2016 ◽  
Vol 17 (4) ◽  
pp. 675-684 ◽  
Author(s):  
Julia Y. K. Chan ◽  
Christopher F. Bauer
Keyword(s):  
General Chemistry ◽  
Learning Strategies ◽  
Study Strategies ◽  
Self Concept ◽  
Exam Performance ◽  
High Group ◽  
Home Study ◽  
Chemistry Students ◽  
Affective Characteristics ◽  
Exam Preparation

Students in general chemistry were partitioned into three groups by cluster analysis of six affective characteristics (emotional satisfaction, intellectual accessibility, chemistry self-concept, math self-concept, self-efficacy, and test anxiety). The at-home study strategies for exam preparation and in-class learning strategies differed among the three groups. Students in the high group (strongly positive affective characteristics) were more autonomous learners, reporting they understood the notes they took in lecture more frequently than the group with low (more negative) affective characteristics. The high group also relied less on tutors and teaching assistants for help when preparing for exams. Participating in explanatory behavior (with self or other students) was correlated positively with stronger exam performance, whereas rapt attention or assiduous note-taking in lecture was negatively correlated. The high and low affective groups were indistinct in their reports of amount of quality time spent studying, but did differ in their approach to using a practice exam as a resource.

How do general chemistry students’ impressions, attitudes, perceived learning, and course performance vary with the arrangement of homework questions and E-text?

2017 ◽  
Vol 18 (4) ◽  
pp. 785-797 ◽  
Author(s):  
Vickie M. Williamson ◽  
Caitlin J. Zumalt
Keyword(s):  
General Chemistry ◽  
Perceived Learning ◽  
Course Performance ◽  
First Semester ◽  
Chemistry Students ◽  
Course Grades ◽  
Survey Results ◽  
Level Of Understanding ◽  
Large Sections ◽  
Online Web

Two large sections of first-semester general chemistry were assigned to use different homework systems. One section used MindTap, a Cengage Learning product, which presents short sections of the textbook with embedded homework questions; such that students could read the textbook section then answer one or more questions in the same screen. The other section used Online Web Learning (OWL-version 2) also from Cengage Learning, which presents homework questions that contains links to open the textbook in a separate window. Findings showed no difference between the groups in any course grades, with both groups strongly indicating that they learned from their system. During a second-semester chemistry course taught by the same instructor, all students used OWLv2. At the end of the second semester, students who had used MindTap during the first semester were given a delayed survey, containing Likert-scaled and open-response questions dealing with students’ perceived learning/perceived level of understanding with each system, how easy each system was to use, and the advantages/disadvantages of each system. In addition, students were asked to compare the two systems giving their homework preference. Students were heavily positive towards the MindTap system. Further data was collected to compare students who used MindTap for the first semester and OWL for the second-semester with those who used the systems in reverse order, using the same survey. Results showed that students indicated significantly higher perceived learning with MindTap and better attitudes and opinions of MindTap, with its single window arrangement, often citing that they read more with MindTap.

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