Information about the Tennessee Ornithological Society's Discover Birds activity book is featured on the NIMBIOS (National Institute for Mathamatical and Biological Synthesis) blog and website. NIMBIOS staff members contributed two excellent math activities to the Discover Birds Activity Book and have made these activity pages available on their website. You can see those pages in pdf format at the link below. Visit the website educational module here: Discover Birds! Changing Populations and Bird Champions http://www.nimbios.org/education/discoverbirds And the blog post here: Kids Discover Birds with Math! http://www.nimbios.org/wordpress/2013/03/15/kids-discover-birds-with-math/ Beautiful website and a great partner in education! Vickie Henderson Knox County Knoxville, TN