Abstract:
The purpose of the study was to determine the effectiveness of problem-based
learning (PBL) approach to mole concept among students of Techiman Senior High
School. The study was quasi-experimental research and nonrandomized control group
pre-test – post-test design. The total population considered for the study was 243
second year students of Techiman Senior High School. The sample size was 74
second year students offering the General Science Programme. The selection
procedure was nonrandomized. Intact or already existing classrooms were used for the
study. The control group consisted of 37 second year students and the experimental
group was equally 37 second year students as this arrangement was the prevailing
situation in the two intact classes at the time the study was conducted. In the
experimental group, the Problem-Based Learning (PBL) approach was used while the
Traditional Lecture-Based (TLB) method was used in the control group. The
instrument used in the study was the Mole Concept Achievement Test (MCAT) which
took the form of pre-test and post-test. The reliability coefficients were found to be
0.736 and 0.751 for the pre-test and post-test respectively. Data were analysed using ttest
and bar charts. The results of the study revealed that the PBL resulted in
significantly higher students‟ achievement in mole concept than the TLB.
Description:
A dissertation in the Department of Science Education, Faculty of
Science Education, Submitted to the School of
Graduate Studies, in partial fulfilment
of the requirement for the award of degree of
Master of Education
(Science Education)
in the University of Education, Winneba
