00404nam a2200133Ia 4500 20240821155954.0 240821s9999||||xx |||||||||||||| ||und|| 500.71 FRA Framwork for k-12 science education : practices, crosscutting concepts, and core ileas Washington National Academies Press 2012 385p Science - Education BK 141290 141290 0 0 0 0 LDD LDD 2024-08-21 0 129320 2024-08-21 15:59:54 2024-08-21 BK