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Abstract:
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The usage of visual models for teaching and learning molecular biology is increasing due
to the difficulties associated with understanding complicated concepts. Hence, this study
intended to determine the extent to which teachers utilise visual models when teaching
molecular biology topics in Grade 10 Life Sciences, as well as the impact of using such
visual models. Learners report misconceptions and learning difficulties associated with
various concepts that exist in molecular biology, thus teaching molecular biology is
difficult. A qualitative research approach was chosen to address the main research
question and aim, together with the usage of a case study design to allow the researcher
to be flexible when collecting data. This allowed the researcher to use qualitative and
quantitative methods for the first, second and third research sub-questions respectively.
Purposive sampling was used to identify 7 participants who participated in the interviews
and responded to an open-ended questionnaire. The use of interviews and the open ended questionnaire allowed for data triangulation, which assisted researcher to
understand how participants view the outcome of the research. Furthermore, thematic
data analysis was used. Findings showed that using visual models improves learner’s
visualisation skills and performance related to molecular biology topics. Furthermore,
visual models can serve as a tool to be utilised by teachers to support learners who have
different learning needs. |