Distinguish between chemical and physical change. Law of Conservation of Mass in chemical reactions.
This site's coverage of the Threshold Concept Framework This site is primarily a bibliography of papers on the Threshold Concept Framework organised by topics and by authors and also includes lists of the key Meyer and Land originating papers, books, overviews, critiques, theses and selected presentations.
It additionally includes information on relevant activities, e. Links to these different parts of this bibliography and to these relevent activities may be found above in the Contents List on the right hand side of this page or on the larger print version of the Contents List.
One such link, New and Recent Additions, provides a list of the most recent references added to the bibliography. New to the Threshold Concept: Where to start The Threshold Concept Framework has grown significantly since this web site was first created and this bibliography, though found useful by many lecturers, teachers and researchers familiar with the threshold concept, is now so large as to be less helpful than it originally was for anyone, new to the concept, wishing to incorporate the framework into either their teaching or research.
It is far from obvious where such an individual starts. This section will list papers in which the authors have addressed this issue and have suggested a guide to working with the framework: Available online 17 Oct ; DOI: Extent of this site's coverage of the Threshold Concept Framework This bibliography initially reflected the interests of the compiler but, over a decade, has been massively extended to cover most disciplines and topics in which there are published papers on the threshold concept framework.
However, the compiler makes no claim to the site being an exhaustive bibliography. Please feel free to e. The Threshold Concept Framework has matured to the extent that the term, threshold concept, is entering common and passing usage in a significant number of pedagogic research papers, i.
Such papers are no longer included in this bibliography unless they also contain a substantial discussion of some aspect of the threshold concept framework.View the most recent ACS Editors'' Choice articles from Journal of Agricultural and Food Chemistry..
See all Journal of Agricultural and Food Chemistry ACS Editors'' Choice articles.. View one new peer-reviewed research article from any ACS journal, selected daily, and made open access based on recommendations by ACS journal scientific editors from around the world.
Based on notes taken after going through the ACS General Chemistry Examination Official Guide. Intended for use on the first-semester exam. Learn with flashcards, games, and more — for free.
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