Micro learning-based lessons in Chemistry / Lovelyn G. Acido

Thesis (M.A.Ed. - Chemistry) - Mariano Marcos State University,2020.

Bibliography: leaves 75-84.

ABSTRACT ACIDO, LOVELYN G. Mariano Marcos State University. May 2020. MICROLEARNING-BASED LESSONS IN CHEMISTRY. Major Adviser: Aris Reynold V. Cajigal, Ph.D. This study aimed to develop Microlearning-based Lessons in Chemistry to improve the performance of Grade 9 students along the topics in chemical bonding, variety of carbon compounds and mole concept. Using descriptive research design and Research and Development methodology, this study involved four groups of participants namely, three Chemistry experts from one state university in Ilocos Norte, 20 Science teachers from the Department of Education, Schools Division of Ilocos Norte, City of Batac, and Laoag, 10 Information Technology (IT) experts, and 50 Grade 9 students from the Division of Laoag City. The student participants were grouped into two, the control and the experimental groups. The research instruments used were Evaluation Checklist for Chemistry experts/Science teachers, Evaluation Checklist for IT experts, and a researcher-made Performance Test. The validity and reliability of the Performance Test was determined prior to its use. Data on the evaluation of the content and technical standards of the Microlearning-based Lessons in Chemistry were analyzed using mean Results of the study reveal that the content standards of the Microlearning-based Lessons in Chemistry are highly satisfactory in terms of objectives, content, instructional characteristics and assessment tools. In addition, the findings of the study show that the technical standards of the developed lessons are highly satisfactory in terms of functionality, reliability, usability, efficiency and portability The findings further reveal that the students' performance improved after being exposed to Microlearning-based Lessons in Chemistry. Using t-test, it was found that there is a significant difference between the pretest and posttest mean scores of the control and experimental groups. Furthermore, it was found that there is a significant difference between the posttest mean scores of the control and experimental groups. This implies that students perform better when they use Microlearning-based Lessons in Chemistry. This further shows the effectiveness of the developed material in improving the performance of Grade 9 students in chemistry. It is then recommended that the microlearning-based lessons be adopted in the chemistry classroom for Grade 9.