http://mommyme-thewonderyears.blogspot.pt/2009/10/activities-with-leaves.html

http://lepetitmanuel.com/blog/differentes-techniques/experience-cercle-chromatique/

http://www.rhythmsofplay.com/category/nature-crafts/page/3/

http://www.rhythmsofplay.com/art-science-experiment-with-watercolor-resist/

http://www.rhythmsofplay.com/invitation-to-create-fall-leaves-art/

http://www.rhythmsofplay.com/watercolor-and-fall-leaves-art/

http://www.blogmodainfantil.com.br/como-as-criancas-podem-pintar-sem-fazer-sujeira/

http://stimulatinglearning.co.uk/2014/09/dots-spots-circles/?doing_wp_cron=1476042058.0296320915222167968750

http://grannygoestoschool.blogspot.pt/2014/08/wild-about-1st-grade-art-activity.html