@online {159, title = {Revolutionizing Earth System Science Education for the 21st Century - Report and Recommendations from a 50-State Analysis of Earth Science Education conducted by TERC for NOAA, Posted June 11, 2007. (PDF, 1.1 MB)}, publisher = {NOAA}, keywords = {$\#$EducationalResources, $\#$LessonPlans, activities, classroom, curricula, earth science, education, K-12, lesson plans, recommendations, schools, standards, teacher resources, teaching}, url = {http://www.oesd.noaa.gov/noaa_terc_study_lowres.pdf} }