Each day, teachers will explore foundational computer science concepts through lessons that don't require computers. We call these "unplugged" activities. Unplugged activities are more than just an alternative for the days when the computer lab is full or the network goes down. They are intentionally-placed kinesthetic opportunities that help students digest complicated concepts in ways that relate to their own lives. Something that is done in an unplugged environment can often set the stage for or review a concept done in a plugged environment. Both are vital pieces of the curriculum as they build student knowledge and understanding in different ways. In addition, unplugged lessons can help build and maintain a collaborative environment in your classroom. An unplugged environment also can be a good way to check for student understanding.