A special thank you to ECRP: Early childhood research practice, wondering with children: the importance of observation in Early Education.http://ecrp.uiuc.edu/v7n2/forman.html
credited to Zero to Three: Early language and literacy-http://www.zerotothree.org/child-development/early-language-literacy/
Special thank you to: Books for infants and young toddlers,http://babyparenting.about.com/od/tvandbooks/tp/infanttoddler.htm
special thank to http://trish12082.wikispaces.com/file/view/kids_fun_pic.jpg/173886547/kids_fun_pic.jpg