EW-103 is a part of Plato, an educational software system developed by Plato Learning, Inc. It is a web-based learning unit designed to help educators deliver engaging and effective learning experiences to their students. EW-103 provides educators with tools to communicate effectively with their students and track student progress. It includes a library of pre-made activities and lessons, and allows students to respond to questions and receive feedback quickly. The software also includes a grading and reporting system to help educators track student performance. EW-103 is available on the web or as a mobile application.