A seamless way to start and end every class while assessing understanding of each lesson. This has been a staple in my 6th and 7th grade classrooms. I use this for all subjects and it keeps the students organized and on track for the first and last 3-4 minutes of class. It also requires them to be responsible for their work and keep track of their do now/exit slip until the end of the week when it is turned in and graded in a seamless fashion.