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Asia-Pacific Forum on Science Learning and Teaching, Volume 15, Issue 1, Article 7 (Jun., 2014) |
Findings related to enzymes activity
Findings related to the Enzymes Activity were summarized in Table 2 to demonstrate the students’ views about the usage of enzymes in daily life.
Table 2. Percentages of the students’ fortune lines about enzymes activity
Fortune Lines
Item
Developing, Positive
%
Changing, Variable
%
Unchanging, Constant
%
Worsening,
Negative
%
Expected Fortune Lines as Answer
Item 1
84
3
11
3
Item 2
53
11
21
16
Item 3
63
18
3
16
Item 4
53
16
21
11
Item 5
63
16
13
9
Item 6
39
21
13
26
Item 7
34
13
34
18
Item 8
63
11
18
9
Item 9
68
18
8
9
Item 10
71
10
10
9
As shown in Table 2, the expected fortune lines were all developing fortune lines except for Items 2 and 6. Items 2 and 6 were worsening fortune lines.
Most of the students drew developing fortune lines for Item 1: Management of enzymes for all biochemical reactions (84%); Item 10: Expectations about enzymes in the future (71%); Item 9: Enzymes can work not only within cells, but throughout life (68%). It is assumed that the students had better understanding about Items 1, 10, 9 with respect to the other items.
However, the percentages of Items 3, 4, 5, 8 were at a moderate level (63%; 53%; 63%; 63%). For example, the students’ percentages regarding Item 3 were 63% (developing fortune lines), 18% (changing fortune lines), 3% (unchanging fortune lines), and 16% (worsening fortune lines). The percentages of Items 2 and 6 were not high (16%; 26%). It is assumed that they did not understand well enough about Item 6: The United States has 500 thousand tons of stored explosives (26%), and Item 7: Increasing of usage of enzymes in industry (34%).
Figure 4 presents some striking examples of the students’ fortune lines related to the Enzymes Activity.
Figure 4. Sample fortune lines indicating the students’ views about the usage of enzymes in daily life
Findings related to fortune lines technique questionnaire
The findings related to Fortune Lines Technique Questionnaire were summarized in Table III to show the students’ views about fortune lines technique.
Table 3. Percentages of the students’ fortune lines about enzymes activity
Theme
Sub-theme
%
Thoughts
We can express our thoughts very well, shortly and clearly.
We can express our thoughts by lines instead of writing on sheets./A good technique.
48
36
We can express things that we couldn’t express by this technique.
5
An enjoyable technique.
5
An understandable technique
5
I don’t think anything.
1
Positives
We can express our thoughts easily.
38
Things that couln’t be expressed by writing and speaking can be expressed.
16
It is a practical and undertandable technique.
15
Negatives
Expression is limited./A number of lines are not enough to express ourselves.
31
Efficiencies
Efficient.
59
Less efficient.
6
Inefficient.
29
People can express themselves in better way by writing.
6
As seen in Table 3, when the students were asked about their thoughts regarding Fortune Lines Technique, all of them had positive reactions apart from one (S17). For example, S11 said “I don’t think anything about these lines because I don’t know why I perform these lines.”
Most of the students expressed their thoughts very well, shortly, and clearly (%48) and said fortune lines were a very good technique (%36). Three students explained: “It is a useful way to graph our thoughts.”(S5); “I think it is an enjoyable technique and it expresses our thoughts very well.” (S23); “... we can express our thoughts by simply drawing instead of writing” (S9).
When students were asked about the positive and negative features of fortune lines, most of them discribed the positive features. Most of them said they could express their thoughts by using this technique (%38). For example, S13 said “People can explain feelings and thoughts in a short and practical manner”. Additionally, some students expressed the limits of this technique (%31). For example, “The fact that there are only four lines is not enough to express our thoughts” (S19).
When asked how efficient this technique was for expressing their emotion, feelings, and thoughts, most of them said it was enough to express their thoughts (Efficient, %59). For example, “... I can explain my feelings and thoughts vey well in a short way ...” (S12). Some students believed that this technique was only a little effective (%6) or was ineffective (%29). For example: “It facilitates us even if it is not completely effective. It is not efficient because it doesn’t refer to which aspects are good and which are bad.” (S10). S26 said it was ineffective, and explained, “We can’t express ourselves very well because there are twelve lines.”
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