This training module provides an introduction to content development for STEM outreach programming. It highlights key processes and considerations for getting started with content development, and provides reflections for optimizing and improving these processes. This module primarily deals with the process of developing content. Content drives the moment-to-moment experiences of program participants through fun and engaging STEM-related activities. Good content plays a significant role in ensuring that participants have positive and impactful experiences in your programs and, ultimately, with STEM.