This document is a capstone project submitted for a Master's degree in education. It examines best practices for teaching writing to K-8 students. The introduction discusses the importance of writing skills and the purpose of the study, which is to determine the most effective writing instruction practices. Key terms are defined, such as differentiated instruction, English language learners, and the writing process. Chapter 1 provides an overview, while Chapter 2 reviews literature on effective strategies like the writing process and differentiated instruction. Chapter 3 discusses differentiating instruction to meet student needs. Chapter 4 analyzes teaching strategies and other factors for effective writing. Chapter 5 summarizes the research and provides a personal reflection.