Brainstorming in groups is part of Speaking and Listening Skills in the Common Core. The practice of brainstorming helps people bond and gets them generating ideas together in synergistic ways. Brainstorming, of course, is especially helpful for prewriting activities. These four activities will help your students understand the techniques of brainstorming and get practice doing it. Included in the zip file is both a visually engaging Powerpoint with over 60 slides (two of these are featured) and a pdf handout for students to take notes on in groups at their desks. I developed this activity while working at KITE, or Kaleidoscope Institute for Thinking Excellence, a summer program for gifted and talented students in Andover, Mass. Your students will have four thought-provoking and engaging activities, each taking about 20 minutes. It could be done in a science or English class depending on the focus (it has an engineering / physics aspect to it, or a brainstorming focus).