AU - السوداني، عبد الكريم. AU - شنيف، مازن ثامر AB - The present paper aims at scrutinizing the inclusion of conservation culture in the secondary stage Biology textbooks. Which represent the research sample for academic year (2013-2014), the content analyze was followed to realize the goal, A conservation culture criterion of (8) field (Water resources, food, electricity, public property, fuel sources, medicine, time management, and personal affairs). The most important results arrived at are: The Basic biology textbook ( first -intermediate ), and Biology ( third -intermediate ) achieved best results, (13.75%) , (17.50%), respectively, while textbooks of Biology on any other result did not get any signification , for the criterion items and to all fields, According to the results , the researchers recommended the important culture of conservation culture inclusion in the secondary school textbooks Biology at relating of their content, so the researchers also recommend conducting further studies in the field . (Published Abstract) http://search.shamaa.org/abstract_en.gif ID - 125460 OP - ص ص. 443-458 T1 - ثقافة الترشيد في كتب علم الأحياء للمرحلة الثانوية [مقال] UL - 1 http://search.shamaa.org/fulltext.gif http://search.shamaa.org/PDF/Articles/EGAsep/AsepNo76Y2016/asep_2016-n76_443-458.pdf النص الكامل (PDF)