an innovative approach

the electron in the light phase. Thus, S01 and S04 perceived that light energy
separated both H2O and CO2 into the electron and then released the oxygen gas. S02
misunderstanding that H2O was plant food perceived that CO2 was the only one
resource of the oxygen gas.
As same as most of students taught through the experiment
without the strong discussion of relationship between the structures and the functions
of chloroplast, the four students had just partial understanding about structures and
functions of chloroplast. Light absorption was only one function of the chloroplast.
S02 also misunderstood that the chloroplast particularly took place in stoma and size
of the stoma limited fixing CO2 in the dark phase.
Holding the misconceptions of S02 caused the misunderstanding
about the necessary factors affecting photosynthesis rate after Mrs. Engka skipped the
laboratory activities in the lesson. “Fixing CO2 depended on size of the stoma.” S01
and S03 who believed that chloroplast functioned as the light absorption only also
misunderstood about the factors. S01 perceived that number of chloroplast did not
affect the CO2 fixation. S03 perceived that fixation depended on stored energy in
vacuole. Table 5.4 shows the students’ conceptions about advanced photosynthesis.
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