This document provides an overview of the 5-E Model of Instruction, which is an instructional model for lesson planning. It consists of 5 phases - Engage, Explore, Explain, Elaborate/Extend, and Evaluate. The 5-E Model was developed in the late 1980s based on constructivist learning theories to actively involve students in the learning process. It is most effective for new concepts that are difficult to master when teachers have time for the engagement and exploration phases. The purpose of each phase is to spark student interest, allow them to discover concepts themselves, understand new information, apply their knowledge, and demonstrate their understanding.