This study's goal was to assess the effectiveness of the developed Electrical Installation and Maintenance 9 worksheets, which were given to grade 9 students at Punta Integrated School in Calamba City, Laguna. The study specifically aimed to answer the following questions: First, what is the component level of the worksheets? Second, what is the worksheets' feature level? Third, what is the level of Academic Performance of Grade 9 Students in terms of third quarter grade? Fourth, do the component of worksheet has significant effect on Academic performance of Grade 9 students? Lastly, do the feature o worksheet has significant effect on Academic performance of Grade 9 students? The descriptive method of research was used in this study. The respondents were one hundred thirty (130) students at Punta Integrated School who used and evaluated the worksheets. Based on the data gathered concerning the objectives of this study the following are the significant findings: (1) The component level of worksheets were all highly satisfactory; (2) Also the features level of the worksheet were all highly satisfactory; (3) In terms of third quarter grade, the level of Academic Performance of Grade 9 Electrical Installation and Maintenance students in terms of 3rd Quarter Grade was very competent; (4) The analyzed data revealed that the components of the worksheet had a partially significant effect on the students? performance; In addition to this (5) the features of the worksheet had a partially significant effect on students? performance. Based on the results above, the researcher came to the conclusion that the components of the worksheet in terms of learning objectives, content, and assessment had no significant effect on students? performance. While the components of the worksheet in terms of activities has a significant effect on students? performance. On the other hand, the features of the worksheet in terms of usability, consistency, aesthetic value and had no significant effect on students? performance and the features of the worksheet with regards to adaptability has a significant effect on the performance of the students. Therefore, the null hypothesis is partially accepted. Therefore it is recommended that TLE teachers may develop additional instructional learning materials based on the needs and interests of the students assimilated into other courses offered in Technology and Livelihood Education to enhance their skills in every situation they were in.

Worksheets; Objective; Content; Activities; Assessment; Usability; Consistency; Aesthetic Value; Adaptability; Academic Performance; Electrical Installation and Maintenance.