ISSN: 2782-893X
eISSN: 2799-0664
ISSN: 2782- 893X
This study aimed to test the effectiveness of 5E’s learning model instructional material in General Chemistry 1. Perceived difficult topics in General Chemistry 1 were determined during the first semester. The respondents were the 250 Grade 12 students enrolled in STEM strand of Senior High School and the 71 science teachers of the four (4) selected schools within DEPEd Division of Quezon, S.Y. 2017 – 2018. Questionnaires were developed to determine the perceived difficult topics, the factors that make the topics difficult in General Chemistry 1 and the level of acceptability of the instructional material. The material and the achievement test were developed, evaluated and validated. Science teachers perceived “stoichiometry”, “gases”, and “electronic structure of the atom” as difficult topics. In general, learning environment, nature of the topics, student and teacher-related factors made the topics difficult. The material included the perceived difficult topics. Both groups are equivalent in pretest scores and Grade 11 general average since the t-values of 0.92 and 0.45 are less than the tabular value of 1.96 at α=0.05. Hence, posttestonly controlled group design was used. There is a significant difference between the two (2) groups in terms of posttest scores since the t-value of 10.58 is higher than the tabular value of 1.96 at α=0.05. It means that students who are exposed to 5E’s learning model performed well in the said subject as compared to the controlled group. Students strongly agree when it comes to the acceptability of the material.