ABSTRACT
This thesis is a report on a comparative study of diagrams and models
used as teaching aids in teaching atomic orbitals in senior secondary schools
(SSS). An orbital represents a three-dimensional ,volume of space around an
atomic nucleus, where electrons arc found. Diagrams of orbitals in textbooks and
on teachers' chalkboards appear in two dimensions, making visualization difficult
for students.
Three second-year elective chemistry classes in different schools in the
Cape Coast Municipality were pretested on atomic orbitals. They were then
taught the concept of atomic orbital, using diagrams only, models only, and a
combination of diagrams and models respectively as teaching aids. Finally, they
were posttest on the concept.
Analysis of covariance (ANCOVA) on the posttest scores of the students,
using their pretest scores as covariate, ranked the teaching aids in the order:
"models only", "diagrams and models" and "diagrams only". A McNamara chi-square
test on changes in students' misconceptions from the pretest to the posttest
showed that the "models only" class had the highest significant proportional c
decrease in misconceptions, whilst the "diagrams only" class had the least.
It is therefore concluded that the use of models only as teaching aids is
more effective than the use of diagrams only in enhancing SSS students'
visualization of atomic orbitals. Moreover, combination of diagrams and models
confuses students and hampers their visualization. Suggestions have therefore
been made in the thesis for appropriate bodies to emphasize the use of model in
teaching atomic orbitals to SSS students.
OSEI-O\\'lISU, D (2021). COMPARISON OF D1AGRAi\IS AND i\10DELS lISED FOR TEACIIING ATOl\lIC OIWITJ\LS IN TilE SENIOR SECONDARY SCIIOOL. Afribary. Retrieved from https://track.afribary.com/works/comparison-of-d1agrai-is-and-i-10dels-lised-for-teaciiing-atol-lic-oiwitj-ls-in-tile-senior-secondary-sciiool
OSEI-O\\'lISU, DANIEL "COMPARISON OF D1AGRAi\IS AND i\10DELS lISED FOR TEACIIING ATOl\lIC OIWITJ\LS IN TilE SENIOR SECONDARY SCIIOOL" Afribary. Afribary, 11 Mar. 2021, https://track.afribary.com/works/comparison-of-d1agrai-is-and-i-10dels-lised-for-teaciiing-atol-lic-oiwitj-ls-in-tile-senior-secondary-sciiool. Accessed 27 Nov. 2024.
OSEI-O\\'lISU, DANIEL . "COMPARISON OF D1AGRAi\IS AND i\10DELS lISED FOR TEACIIING ATOl\lIC OIWITJ\LS IN TilE SENIOR SECONDARY SCIIOOL". Afribary, Afribary, 11 Mar. 2021. Web. 27 Nov. 2024. < https://track.afribary.com/works/comparison-of-d1agrai-is-and-i-10dels-lised-for-teaciiing-atol-lic-oiwitj-ls-in-tile-senior-secondary-sciiool >.
OSEI-O\\'lISU, DANIEL . "COMPARISON OF D1AGRAi\IS AND i\10DELS lISED FOR TEACIIING ATOl\lIC OIWITJ\LS IN TilE SENIOR SECONDARY SCIIOOL" Afribary (2021). Accessed November 27, 2024. https://track.afribary.com/works/comparison-of-d1agrai-is-and-i-10dels-lised-for-teaciiing-atol-lic-oiwitj-ls-in-tile-senior-secondary-sciiool