Flipgrid is a website that allows teachers to create "grids" of short discussion-style questions that students respond to through recorded videos. Each grid is effectively a message board where teachers can pose a question and their students can post 90-second video responses that appear in a tiled "grid" display.
Use Flipgrid to further classroom conversations by assigning questions as homework assignments and then continue the conversation in class the next day. Ask students to weigh in on a critical current event for a social studies or civics class; use it in a math class to ask students to describe the process they used to solve a complex problem. You might also use Flipgrid as an opportunity for students to post mini-reviews of books, movies, or television shows. Perhaps ask students at the end of a unit or the end of a year to reflect on what they've learned and what they'd recommend to other students.