فاعلية وحدة إثرائية مقترحة في الكيمياء قائمة على معايير العلوم للجيل القادم (ngss) لتنمية مهارات التفكير الناقد لدى طالبات المرحلة الثانوية
The study aimed to identify the effectiveness of the proposed enrichment unit in chemistry based on the Next Generation Science Standards (NGSS) to develop critical thinking skills among secondary school students in Bisha Governorate, the study was applied to a sample of (26) female students from the second year of secondary (scientific) at the Quoz Numan Secondary School affiliated to the Department of Education in Bisha Governorate, the study tools consisted of a critical thinking skills test (prepared by the researcher), the test was applied before and after on the study sample. The results showed that there were statistically significant differences between the mean scores of the study sample members in the pre and post application of the critical thinking skills test, this is attributed to the proposed unit based on NGSS standards for the benefit of the test after application. The study recommended the necessity of adopting next generation scientific standards (NGSS) in chemistry curricula and teaching, as well as the need to train teachers and learners on critical thinking skills and their development. (Published abstract)