Coming back from break is hard for everyone. Instead of jumping back into the Harkness methods I had been using, we took the first day to develop a concept map of ideas around quadratics. We had to do a little skill building behind what is a concept map or what makes a concept map good.
Each student was given a different colored marker in their team so each person had to contribute a equal amount (in a visible way). At the end, we did a gallery walk of the posters which was rough. I think I needed some sort of activity guide for the gallery walk - students didn't really know what they were supposed to be doing despite being asked to add to posters there was no real accountability for that portion of the class.
However, it was a good way to refresh vocabulary and reconnect ideas that they learned about before break. Below is one group's work.