Opening Bell is a strategy I use to start class every day. I start by asking students to "clamshell" their computers--closing their devices almost all the way--and then I give a whole-class greeting. We spend the next two minutes checking the review section of the class agenda and preparing for the whole-class mini-lesson, announcements, and/or administrative tasks. Given that my students spend a significant portion of each class working independently or in small groups, Opening Bell gives us the opportunity to come together as a whole-class community before students start working on their own.
The core ideas of my classroom are big ideas and themes that run through almost every lesson I teach. They are good math values, work values, life values. Whenever they come up during a lesson, I always explicitly make the connection. Next year, I plan on using a graphic for each value (some kind of eye graphic for core idea #1) to show, in my lessons, where the ideas come up.
Once a day twice during a two-week unit, students will come back from their individualized assignments and group as cohort. This gives them opportunity to take their assessments as a class as well participate in full class discussions, mentoring, study sessions, and peer to peer advisory.