Using six preservice teachers as subjects, this study was purposed to research about the concepts in
understanding carbon cycle, which of these concepts were related to the conception of the earth system, and finally
whether or not the systems thinkin...
Using six preservice teachers as subjects, this study was purposed to research about the concepts in
understanding carbon cycle, which of these concepts were related to the conception of the earth system, and finally
whether or not the systems thinking was applied sufficiently around carbon cycle. To achieve this study purpose, an
instrument related to carbon cycle was developed and administered to the six teachers. The study found that a total of 42
conceptions within the earth system were concepts related to carbon cycle. The list consisted of 15 conceptions in
atmosphere, 11 in biospheres, 9 in hydrosphere, and 7 in lithosphere. In aspect of applying the systems thinking, 4
subjects who couldn’t compose the feedback loop in their causal map failed to apply this type of thinking. The other two
who applied systems thinking had 2 and 1 feedback loop each, in their causal maps. But, one of the feedback loop from
the subject who made two was based on unscientific reasoning. As a result, the subjects had lower understanding of
concepts related to carbon cycle in lithosphere than those in atmosphere, biosphere, and hydrosphere. Furthermore, the
subjects’ application of the earth systems thinking on carbon cycle was at a low standard.