Quantitative Assessment on the Effectiveness of a Formal Charge Method for Constructing Lewis (Electron Dot) Structures

• Owen J. Curnow ^[1] ; Jason K. Pearson ^[2]
  1. [1] University of Canterbury

     University of Canterbury

     Nueva Zelanda

     
  2. [2] University of Prince Edward Island

     University of Prince Edward Island

     Canadá

     
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 100, Nº 8, 2023, págs. 3093-3097
• Idioma: inglés
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• Resumen

  • The effectiveness of a formal charge method to draw Lewis structures that was developed by Curnow was studied quantitatively by direct comparison of two groups of students: one of which was taught the new formal charge method and another that was taught a traditional method. Students’ marks on a common assessment were found to improve by approximately 5% when taught the formal charge method, and students who used this method were able to identify the correct answer with fewer attempts. These differences were found to be statistically significant.