This group work is simple but really effective. You can create a big color wheel with colored pieces of paper, ripped from magazines and old books. The whole class works to complete all the colors of this big color wheel, creating a poster to hang in the classroom. The big circle is divided in 12 slices. Every couple of students take a slice and choose a color of the color wheel. We need lots of magazines to leaf through their pages, in order to find the right colors for every slice. The students in couple glue all the pieces of colored paper on a single slice, paying attention at the sample of the original color from the color wheel.