This study aimed to
develop a measurement tool in order to assess preschool teachers’ pedagogical
content knowledge regarding mathematics. The study was based on 300 preschool
teachers working in formal independent kindergartens and nursery classes of
primary/secondary schools in the Kahramanmaraş Province of Turkey. Among the
participants, 150 were chosen for pre-application and 150 for the main
application. The scale consists of five different case studies and a total of 35
items, including dialogues that focus on mathematical content and processes reflected
in children’s talk during their play. In calculating the reliability of the
scale, Cronbach Alpha was found to be .95 for the pre-application and .96 for
the main application. For the validity of the scale, exploratory and
confirmatory factor analyses were performed. The exploratory factor analysis
results revealed the scale to be a single-factor structure. When the factor
loads of each relevant item were examined, no item was found to exist with a
factor load value of less than .30. After confirmatory factor analysis was
performed, the model fit indices of CFI, TLI, RMSEA, and SRMR values were found
to be .91, .91, .06 and .06, respectively. These results show the model to be
reliable to an acceptable level. Based on the findings, it could be concluded
that the scale is an instrument that produces valid and reliable measures, and
that it can be used in order to determine the preschool teachers’ pedagogical content
knowledge regarding mathematics.
Mathematics education, Preschool teacher, Pedagogical content knowledge