In order to evaluate the PCK and GPK of Finnish and Thai teachers, an
instrumental case study approach was adopted. A case should be purposefully
selected that is, for instance, information-rich, critical, revelatory, unique or
extreme (Stake, 1995; Patton, 1990). If a case is purposefully selected, then
there is an interest in generalising the findings. Not only the case selection,
but also the context has to be realised for this approach. Miles and Huberman
(1994) suggested that it should not only concern the case(s) (people as research
participants), but also the situation and context to be examined. In
order to research teachers’ PCK and GPK, three primary school teachers
from Finland and three from the capital city in Thailand were selected as the
cases. The context was science instruction at grade 6 in Finnish and Thai
schools, and sixth grade science textbooks were selected for the analysis of
textbooks. The rationale is explained in detail in Chapter 5, Section 5.2 and
the criteria for teacher selection are described in detail in Chapter 6, Section
6.3.1.
In order to evaluate the PCK and GPK of Finnish and Thai teachers, aninstrumental case study approach was adopted. A case should be purposefullyselected that is, for instance, information-rich, critical, revelatory, unique orextreme (Stake, 1995; Patton, 1990). If a case is purposefully selected, thenthere is an interest in generalising the findings. Not only the case selection,but also the context has to be realised for this approach. Miles and Huberman(1994) suggested that it should not only concern the case(s) (people as researchparticipants), but also the situation and context to be examined. Inorder to research teachers’ PCK and GPK, three primary school teachersfrom Finland and three from the capital city in Thailand were selected as thecases. The context was science instruction at grade 6 in Finnish and Thaischools, and sixth grade science textbooks were selected for the analysis oftextbooks. The rationale is explained in detail in Chapter 5, Section 5.2 andthe criteria for teacher selection are described in detail in Chapter 6, Section6.3.1.
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