In 4th Grade, students strengthen their understanding of how computing devices connect through networks and how cybersecurity practices protect information. They investigate how computers use sensors and inputs to perceive the world. Lessons introduce variables and user input in algorithm design, allowing learners to create more dynamic programs. Students also explore data types, using them to solve problems and build models of real-world systems. With a focus on responsible technology use, they learn the impact of safe and unsafe digital practices.