I specifically learned about Jigsaw Cooperative Learning Groups and look forward to using that strategy with my 9th graders, but also applying the constructivism concept of using authentic problems for them to solve as they study our Earth Science content/issues. That should underscore exactly why it is important to them to understand Earth Science (why thay are tasked with studying it).
While reading through the module concerning exit slips and ensuring participating by all students, I wrote in my notes that once I indentify those students who may be reluctant to participate, I could email them the exit slip questions… >>>