Student Conceptions of pH Buffers Using a Resource Framework: Layered Resource Graphs and Levels of Resource Activation (Record no. 44645)
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| fixed length control field | 02452nam a22002417a 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20231030112701.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 231030b ||||| |||| 00| 0 eng d |
| 022 ## - INTERNATIONAL STANDARD SERIAL NUMBER | |
| ISSN | 0021-9584 |
| 037 ## - SOURCE OF ACQUISITION | |
| Source of stock number/acquisition | RIEBPL Library |
| 082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | 540.7 |
| 100 ## - MAIN ENTRY--AUTHOR NAME | |
| Personal name | Mary A. W. Sheppard and Christopher F. Bauer |
| 245 ## - TITLE STATEMENT | |
| Title | Student Conceptions of pH Buffers Using a Resource Framework: Layered Resource Graphs and Levels of Resource Activation |
| Remainder of title | (Journal Article) |
| Statement of responsibility, etc | |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Place of publication | Washington, United States |
| Name of publisher | :American Chemical Society |
| Year of publication | ,January 10, 2023 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Number of Pages | 22-33 p. |
| 490 ## - SERIES STATEMENT | |
| Series statement | American Chemical Society, Volume 100, Issue 1 |
| 505 ## - FORMATTED CONTENTS NOTE | |
| Formatted contents note | ***______{For Hard Copy, Please visit Library.}________*** |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc | Abstract-<br/><br/> pH buffers are used extensively in research and industry making them an important chemistry topic for students to learn. This qualitative study uses the phenomenographic method and a resource theoretical framework to provide the first insights into how students approach conceptual buffer problems. Three scaffolded buffer question sets were designed to promote in-depth conceptual responses during a think aloud interview followed by retrospective reporting. Open-coding for activated resources led to three levels of resource activation: Surface Features, Building Connections, and Interconnected. Layered resource graphs provide a visual representation of a diverse array of activated resources, how resources are connected, and which question type promoted particular activations. Some resources such as Accept or Donate H+ were consistently activated in all three questions whereas other resources such as pH relative to pKa were productive only in particular contexts, thereby highlighting the contextual dependence of resource productivity. Challenges were observed in productively activating crucial resources such as Accept or Donate H+ and in maintaining activations over time even within the same scaffolded question. Specific suggestions are provided on making connections between resources to promote students to a higher level of resource activation and success with buffer problems. Future research should probe the types of activities that can promote productive resource activations and connections.<br/><br/><br/><br/><br/><br/> |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical Term | Acid and base chemistry, |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical Term | Conjugate acid-base pairs, |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical Term | Monomers,pH,Students |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | https://doi.org/10.1021/acs.jchemed.1c01078 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | Periodicals |
| Lost status | Damaged status | Home library | Current library | Date acquired | Full call number | Koha item type |
|---|---|---|---|---|---|---|
| RIE BPL Library | RIE BPL Library | 30.10.2023 | 540.7 | Periodicals |