"Do Now" is a classroom activity designed to engage students at the beginning of a lesson. It typically consists of a short task or question that students complete as soon as they enter the classroom. This activity helps to focus their attention and prepare them for the day's learning objectives. The purpose of a "Do Now" is to activate prior knowledge and encourage critical thinking. It can involve various formats, such as a quick writing prompt, a math problem, or a discussion question. By starting with a "Do Now," teachers can create a structured environment that promotes active participation from the outset.