Chapter V

SUMMARY, CONCLUSIONS AND RECOMMENDATIONS

This chapter presents the summary of findings, conclusion and

recommendations of the study entitled “Comparative Study on the Effectiveness

of Using “Do-it-yourself” instrument and PowerPoint Presentation in Teaching

Selected Topics in Chemistry.”

The respondents were the 80 third year high school students, sections

Newton, Einstein and Masunurin of Iligan City East High School – Sta. Felomina,

Sta. Felomina, Iligan City.

The pretest was given before the discussion and the posttest was

administered. The test was composed of 65 items.

Summary of Findings

Based on the data gathered the following findings are revealed:

1. In the pretest 67.5% of the respondents subjected to PowerPoint

presentation performed fairly while 32.5% of the respondents performed

satisfactorily. On the other hand, in the posttest, 52.5% of the respondents

performed very satisfactorily and 47.5% performed satisfactorily.

2. In the pretest, 70% of the respondents exposed to “Do-It-Yourself”

instrument performed fairly while 30% performed satisfactorily. In the

posttest, 65% had an excellent performance while 35% performed very

satisfactorily.

3. The pretest and posttest mean of the respondents subjected to

PowerPoint presentation were 44.10 and 60.78 with the mean difference

of 16.68. The respondents exposed to “Do-It-Yourself” instrument had a

pretest and posttest means of 43.62 and 77.47, respectively, with the

mean difference of 33.85.

4. The posttest’s mean rank and sum of rank difference were 40 and 1600,

respectively. This shows that there was a relatively great difference

between the scores of the respondents in the posttest.

Conclusions:

Based on the preceding findings of the study, the following conclusions

are set.

1. The levels of performance of respondents exposed to “Do-It-Yourself”

instrument and PowerPoint presentation were Fair in the pretest implying

that their entry knowledge on the topics are the same for both groups.

2. The levels of performance of the respondents subjected to PowerPoint

presentation and “Do-It-Yourself” instrument were different in the post-test.

The group working with “Do-It-Yourself” instrument had Excellent

performance while the PowerPoint presentation group performed very

satisfactorily.

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3. The “Do-It-Yourself” instrument and the PowerPoint presentation

approach in teaching can facilitate learning for both were found effective.

However, hands-on experience proved to be the better approach than the

lecture done through PowerPoint presentation.

Recommendations:

1. The researchers recommend that the “Do-It-Yourself” instrument

approach should be used in the classroom for it enhances the

performance of the students than the lecture method done through

PowerPoint presentation.

2. PowerPoint presentation is recommended to be employed for

classroom lecture in the absence of science gadgets for hands-on

learning, since it also aides in learning.

3. The researchers also recommend to improve the construction of the

gadgets making it more stable and functional for classroom use.

4. Science teachers should be encouraged to design and construct

simple gadgets for classroom use in order to explain other science

principles.

5. The innovative gadgets are simple and materials locally available,

therefore, it is recommended that more gadgets should be reproduced

so that each student can work individually or reduce the number of

students per group.

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