My colleagues and I have students write a Synopsis of their learning after every Independent Learning Zone period as well as after Live Investigations. The Synopsis acts as a reflective tool for both large and small concepts. I often tell my students to write what they actually learned or improved upon, not what they THINK I want them to write. I train my students to make a space for the Synopsis in their notebook headings. Occasionally, I will have my students read their Synopses out loud, but most often I walk around and do a quick check, as they are mostly a personal reflection for my students.
Formal transitions happen twice during a double-block period. My students have to move from one section of my extra-large classroom (3 classrooms merged into one) and move to another section for a new lesson with a new teacher. My students have two minutes to transition from session to session, and we play a variety of interesting music on the surround sound stereo system to keep it fun.
At the beginning of each Independent Learning Zone class session, I do a quick review of Independent Learning Zone Expectations. This strategy encourages the whole class to come together as a community with common expectations in mind before students begin working independently for the remainder of the class.
I use the Closing Bell strategy to bring my students back together as a community at the end of each class to check for understanding, debrief the class, give "grows and glows," and/or preview what we will be doing the following day. Building in this type of closing at the end of class is especially important in a blended classroom when students are spending so much time working independently or in groups.