Here are the links to Lego Education for the Green City Challenge: http://www.legoeducation.us/eng/product/green_city_challenge_set/2046 [1] http://www.legoeducation.us/eng/product/green_city_challenge_activity_pack/2102 [2] http://www.legoeducation.us/eng/product/green_city_challenge_combo_pack/2045 [3] This book is the first that I have seen that is designed for the the Lego Education resource set LEGO MINDSTORMS NXT: Mars Base Command (Technology in Action) James Floyd Kelly I have a copy but have not started it. Links: ------ [1] http://www.legoeducation.us/eng/product/green_city_challenge_set/2046 [2] http://www.legoeducation.us/eng/product/green_city_challenge_activity_pack/2102 [3] http://www.legoeducation.us/eng/product/green_city_challenge_combo_pack/2045 -- To UNSUBSCRIBE or CHANGE your settings, please visit https://listserv.jmu.edu/archives/vadcfll-l.html and select "Join or leave the list". -- VADCFLL administrative announcements are sent via VADCFLL-ANNOUNCEMENTS-L. Visit https://listserv.jmu.edu/archives/vadcfll-ANNOUNCEMENTS-l.html to subscribe.