I think giving the kids "missions" helps - send them away from the screen for a quick task that they must report back on. Or give them projects to work on during non-screen learning time that they can share with their peers when everyone is back online. Depending on the age of your students, Flipgrid can be a great tool to not only create mission forums but give students a chance to engage with their peers via video.
Some example missons might be "find an example of X in your home" or "Go outside and use your 5 senses to observe for 10 minutes. What did you see/smell/hear/feel/taste?" For language arts or history, have students find examples in books or magazines in their home (persuasive language, descriptive language, primary/secondary sources, etc.).