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The Chemical Educator

ISSN: 1430-4171 (electronic version)

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Abstract Volume 16 (2011) pp 155-157

Active Learning Activity on Hessís Law in General Chemistry

Lance Connell and Patricia Metthe Todebush*

Clayton State University 2000 Clayton State Blvd. Morrow, GA 30260, patriciatodebush@clayton.edu
Received April 9, 2010. Accepted September 23, 2010.

Published: 2 June 2011

Abstract. An active and collaborative learning project was developed and conducted at a mid-sized state University to determine if Hessís Law could be taught more effectively to a science majorís chemistry class. Two sections of majorís General Chemistry I were taught by the same professor. The morning class participated in an active learning Hessís law activity and the afternoon class received a traditional lecture. The morning class was divided into groups of five students, given Hessís Law problems written on index cards, and asked to solve them as puzzles. After solving the problems, the students were asked if they understood Hessís Law and if the class period was effective for explaining Hessís Law. The afternoon class was given a traditional lecture using some of the same examples that were used in the morning activity. Based upon student feedback, and a comparison of student success on two exam questions, the active learning activity was effective in teaching the concept of Hessís Law.

Key Words: In the Classroom; general chemistry

(*) Corresponding author. (E-mail: patriciatodebush@clayton.edu)

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