There are only 4 rules in my classroom. The four rules are 1) Be respectful - I will always talk to students respectfully so there is no reason for students to talk to either myself of their peers with disrepect. 2) Always sit in your assigned seat - seating assignments are always projected in the front of the room so there is no reason to be confused about where to sit. No negotiations. 3) No talking during independent time - this doesn't need much explanation. 4) Technology is used for learning. Their devices should only be used to watch instructional videos otherwise it's too easy to get sucked into the vast abyss of the internet.
Truly understanding science requires my students to think in ways they might not have experienced before. Conceptualizing something that our eyes can't always see is difficult, and so it's valuable to provide graphic organizers, visual models, and other support tools as resources that my students can access while diving into content. One of the richest ways to get students to build their own methods and approaches to solving problems is to allow them to think on paper. Lessons involving direct instruction are always broken into small segments with short, casual writing periods built into the end of each one. These Quick Write Summaries are meant to focus on content construction and are free of structural analysis. I don't grade them, but I'll always help students put together their thoughts and present them with questions that guide them to the answer. Writing-to-learn strategies like the Quick Write Summary help visual learners with long-term comprehension of scientific terminology and sets the stage for students demonstrating their knowledge through writing in future assessments.
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.
Chemistry is a combination of the comprehension of scientific content and the application of mathematics to those concepts. My students have to be prepared to think deeply about difficult concepts the minute they step into my room. Starting the class with a relevant "Catalyst" helps them initiate their own thinking processes in preparation for a productive day in the same way that biological enzymes catalyze chemical reactions. During The Catalyst, I model my thinking process for how to approach a mathematical problem by having my students identify the key steps in the calculation and establish a foundation that students who struggle with math can fall back on when they're confused.