Innovation Activity-Based Lessons involving the Different Uses of Periodic Table of Elements

Abstract

INTRODUCTION

One indication that students fail to learn science concepts is their low mastery level. Several factors that cause a low mastery level must be addressed; extended efforts and supplementation to the existing instruction, activities, strategies and teaching devices must be given priority. In this study, the innovated lessons for Grade 9 Chemistry involving the use of the periodic table of elements were utilized.

METHODS

The developed lessons assessed by the jurors and observers as to their applicability and the presence of the features were utilized in this descriptive-quantitative research. One of the instruments utilized was the 50-item pre-post-test to measure learners "conceptual understanding of topics involving different uses of the periodic table of elements. The level of conceptual understanding was based on the Mean Performance Level (MPL) of the pre-test and post-test results. To identify the level of conceptual understanding, the rating range was established: A Mean Passing Level (MPL) of 81-100-Very High, 61-80-High, 41-60-Moderate, 21-40-Low and 1-20-Very Low.

RESULTS

A 50-item pre-test was conducted prior to the utilization of the seven (7) innovated activity-based lessons in chemistry involving the use of a periodic table of elements. Results of the pre-test revealed a Mean Performance Level (MPL) of 37.11% which indicated a low conceptual understanding. After the utilization of the innovated activity-based lessons in chemistry, the result of the post-test revealed a Mean Performance Level (MPL) of 76.91%, which showed a high level of conceptual understanding. The utilization of activity-based lessons involving uses of the periodic table including manipulative versions had resulted in a high increase in the MPL. In the utilization of the innovative lessons, respondents preferred the use of activity sheets, the periodic table during activity in a one-on-one basis, and the hands-on activities.

DISCUSSIONS

The result obtained in this study was supported by the theories of Skinner, Piaget, and Dewey, who emphasized the vital role of interactive learning and the construction of knowledge for the meaningful learning experience of learners. The use of different teaching strategies and instructional materials are vital to life-long learning. Likewise, manipulative instructional materials can enhance students' academic and social skills.