For this lesson, students chose a flower photograph or a silk flower to study and then made a simple close-up drawing of it in their sketchbook. Using Elmer's Gel Glue (my new favourite glue!) they drew their flower on a large piece of watercolour paper. (I demonstrated how to draw a smooth glue line, with the tip of the bottle just slightly brushing the paper.) After the glue was dry (next week's class), students took a Sharpie fineliner and traced around both sides of their glue lines. Then they added colour using semi-moist watercolour paints.
There was way more success with this project than when I did the close-up flowers with acrylic on canvas last year. Both the boys and the girls in my class were happy with their results.