This study formed part of a broader investigation into the role of language in teaching and learning chemical equilibrium. First-year technikon students were tested for their understanding of 25 words and five symbols commonly used in connection with chemical equilibrium. Each word or symbol was used in a short sentence. For each word or symbol five possible meanings were given, of which any number could be correct. This test showed that most of the students had an inadequate grasp of the meaning of all five symbols. It also showed that, on the average, their understanding of symbols was more problematic than their understanding of words. It is concluded that chemistry teachers, at all levels, should be alert to the fact that students may have problems with the meaning of symbols and purposefully "teach" symbolism to ensure that their students understand it the same way that they as teachers do.
More Information
Citation
Marais, Paul; Jordaan, Faan. J. Chem. Educ.2000 77 1355.
Keywords
Chemical Education Research; Equilibrium; Nomenclature / Units / Symbols; Public Understanding; Writing in Chemistry
The "Chemistry Teacher Connection" (CTC) is especially for high school chemistry teachers. For only $40/year, it offers an online-only subscription to CLIC along with membership in the Division of Chemical Education, normally $65/year. CTC subscribers receive access to all articles and supplements from 1996 through the current issue.
Through special arrangement with the ACS, JCE High School CLIC is now able to provide subscribers with online access to Chemical & Engineering News articles that have been selected specifically for secondary science instructors and their students.
Occasionally, collections of JCE back issues become available for donation to individual teachers, schools, or libraries. JCE matches collections with interested recipients. Recipients pay shipping costs or pick up the collection.