We don't use text books in our class, we make them. Each student is given a binder at the beginning of the year. The binder becomes a reference book for the students as they fill it up with the lessons they have completed. Many standard textbooks have become a diluted hodepdoge of information, hard for most students (and even myself) to decipher. This binder allows me to create a resource tailored to my students.
Science can be messy and my students are often in such a rush to take care of the priorities for the next class that they forget to clean up their work and physical area appropriately. Closing Time reminds my students of their obligations for the end of a class period and standardizes a system that promotes personal responsibility for all class materials. During this time, I list all of the upcoming class assignments and events on the board, so that my students can begin thinking about future activities when they've finished cleaning up and closing down. Coupling this strategy with a tool like Remind 101 keeps my students aware of what is expected of them outside of class time.
In the traditional classroom, time is constant and understanding is variable from student to student. The Flipped Mastery model inverts the traditional relationship between time and understanding, letting understanding be the constant and time be variable. All of my students are held to the same high standards, but they master standards at a pace they feel comfortable with and are ready for. Initially, many of my students are confused about what a self-paced mastery-based class is all about, so my co-teacher and I find it helpful to introduce the concept to our students in a very strategic and explicit way at the beginning of each school year.
By allowing my students to assess other students' work and then providing them with a Student Lab Development Rubric to evaluate their own work, they learn to design and refine high-quality experimental procedures. The Student Lab Development Rubric is one of the tools I use to help students build the experiments they've created and then display results and lab analyses. When students are the ones dictating how they will conduct their experiments, they invest more fully in the activity and come to realize that science involves constant critical analysis and reiteration. I like to move conversations away from "right" and "wrong" and more towards how we can improve each component of our lab activities. Initially, some students feel uncomfortable identifying that their work isn't up to the high standards of the rubric, but over time most come to realize that this process helps them improve their final products and understand the underlying purpose behind labs.