Making Solid Solutions with Alkali Halides (and Breaking Them)
This activity was selected for the On the Cutting Edge Exemplary Teaching Collection
Resources in this top level collection a) must have scored Exemplary or Very Good in all five review categories, and must also rate as “Exemplary” in at least three of the five categories. The five categories included in the peer review process are
- Scientific Accuracy
- Alignment of Learning Goals, Activities, and Assessments
- Pedagogic Effectiveness
- Robustness (usability and dependability of all components)
- Completeness of the ActivitySheet web page
For more information about the peer review process itself, please see http://serc.carleton.edu/NAGTWorkshops/review.html.
This activity was peer reviewed prior to publication in the Teaching Mineralogy Workbook.
This teaching activity was originally published in: Brady, J., Mogk, D. W., and Perkins, D., (editors), 1997, "Teaching Mineralogy," a workbook published by the Mineralogical Society of America, 406 pp. All teaching activities in this volume received two external peer reviews from mineralogy faculty focused on content and pedagogy, and a final review by the co-editors to comply with the publication standards of the Mineralogical Society of America.
This page first made public: May 9, 2008
Skills and concepts that students must have mastered
- Basic mineralogy and crystallography
- Interpreting graphs
How the activity is situated in the course
Content/concepts goals for this activity
- kinetics of crystallization, nucleation and growth, exsolution, and diffusion in the NaCl-KCl system
- phase diagrams using the NaCl-KCl system
Higher order thinking skills goals for this activity
- analysis and interpretation of data, especially as it relates to graphical interpretation
- comparison of data between different phases in the NaCl-KCl system
Other skills goals for this activity
- work collaboratively in small groups
- understand and operate an XRD
Description of the activity/assignment
Determining whether students have met the goals
Download teaching materials and tips
- Assignment description, hand outs, and instructor's notes. (Microsoft Word 236kB Apr27 08)
- Assignment figure 1 (Microsoft Word 190kB Apr27 08)
- Assignment figure 2 (Microsoft Word 116kB Apr27 08)
- Assignment description, hand outs, and instructor's notes. (Acrobat (PDF) 47kB May3 08)
Barrett, W.T., and Wallace, W.E., 1954, Studies of NaCl-KCl solid solutions. 1.Heats of formation, lattice spacings, densities, Schottky defects and mutual solubilities: Journal of the American Chemical Society, 76, 366-369.
Levin, E.M., Robbins, C.R., and McMurdie, H.F., 1964, Phase Diagrams for Ceramists: The American Ceramic Society, Columbus, 60lp.
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