Artful Thinking: Using Art to Promote Thinking in the Classroom. Artful Thinking uses images and Visible Thinking Routines (Harvard Project Zero) to develop students' thinking. Thinking routines are easy to use across all content areas.
For beginning of the year guidance lesson, would probably use something besides a flower. Each student paints a flower. Cut each flower into quarters. Rearrange them and glue them to a board with matte medium.