NotesFAQContact Us
Collection
Advanced
Search Tips
Back to results
Peer reviewed Peer reviewed
Direct linkDirect link
ERIC Number: EJ1441803
Record Type: Journal
Publication Date: 2022-Nov
Pages: 8
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-0021-9584
EISSN: EISSN-1938-1328
Organic Connections: A Chemical Jigsaw Puzzle for Learning Structural Formulas
Valdinei S. Silva; Edimar P. Nunes; Luzia A. Moura; Ci´ntia L. S. Gomes de Sa´; Vera L. S. Augusto Filha; Anderson R. Albuquerque
Journal of Chemical Education, v99 n11 p3797-3804 2022
The basic knowledge of chemical formula writing is fundamental for chemistry students, yet many still struggle to learn it. To provide a more interactive and engaging approach that facilitates and reinforces student understanding of chemical formulas and stoichiometry of chemical reactions, we have designed a chemical jigsaw puzzle. Only eight general jigsaw puzzle shapes are needed to represent atoms (e.g., H, C, N, O, X, ···) or groups (e.g., -CH[subscript 3], Et, But, Ph, ···), shared electrons in covalent bonds, lone pairs, and unpaired electrons for radical compounds. The complementarity of the chemical jigsaw puzzle pieces can present a large variety of molecular arrangements with several functional groups, including radical and ionic species. Thus, concepts such as organic functions, resonance, hybridization, Lewis dot structures, octet configuration, formal charges, stoichiometry, and others can be readily exemplified. Its use is intended for introductory chemistry courses, especially in high school. The usefulness and effectiveness of this chemical jigsaw puzzle was checked in the classroom throughout a hands-on learning activity using medium-sized pieces, built with low-cost material.
Division of Chemical Education, Inc. and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail: eic@jce.acs.org; Web site: http://pubs.acs.org/jchemeduc
Publication Type: Journal Articles; Reports - Descriptive
Education Level: High Schools; Secondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A