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.
The flipped mastery model gives students loads of time to work independently, so every few weeks we like to bring the class together to play a game. Pop The Bubble, which my coteacher Mr. Elizondo came up with, is hands down the students' favorite. Each team of students gets 5 bubbles, and when they get a question right, they can pop another teams' bubble. The last team with bubbles remaining wins the game. It's a great twist on the traditional Kahoots quiz game.
To give students greater independence, there is an answer key for the practice problems of every lesson. I know what a lot of teachers are thinking at this point: what if the student just copy all their answers from the answer key? As an Algebra teacher told me when I asked them the same question before starting flipped mastery, they'll just fail the mastery quiz. It only takes a few correctional assignments for them to realize that the answer key is there to check answers, not copy them.
The most common answer I give students when they ask me a question is "look at your notes." The course is designed so any question in the practice problems or mastery quiz have been directly addressed on the current video lesson or a past one. Because the design of the lessons has been created with this intentionality, it's easy to refer students to the exact place in the notes they can find their answer. It's been a challenge to not jump in and immediately offer students help, and many get frustrated in the moment, but over the course of the year students develop strong independence in their learning, able to use their notes, peers, and online resources to find the answer they were looking for.