The document provides guidance for teachers on teaching the Exploratory Course on Electrical Installation and Maintenance. It outlines the overall goals of the K to 12 curriculum and the conceptual framework for teaching Technology and Livelihood Education (TLE). Each TLE exploratory course is composed of 4 to 5 lessons based on competencies from the Training Regulations of the Technical Education Skills and Development Authority. The lessons include learning outcomes, performance standards, materials, and assessments. The teacher's guide is intended to help teachers ensure TLE exploratory courses are taught effectively and in line with the TR-based approach of the K to 12 curriculum.