فاعلية وحدة دراسية مقترحة في العلوم قائمة على تاريخ الإكتشافات العلمية لتنمية مهارات الإستقصاء العلمي لدى تلاميذ الصف الخامس الإبتدائي
The aim of the research is to identify the effectiveness of a proposed study unit in science based on the history of scientific discoveries in developing scientific inquiry skills among fifth grade students, scientific discoveries and testing the skills of scientific inquiry. The research tools and materials were applied to a sample of (35) students in the fifth grade of elementary school at Zahraa Port Fouad Primary School in Port Said Governorate. Where the value of (T) to indicate the difference between the mean scores of the pre and post applications was (15.58) in favor of the post application of the test at the level of significance (0.01), and the value of the ETA square was (0.88), which indicates a strong effect size. The study recommended the need to include curricula Science in the fifth grade of primary school, topics that guide students towards inquiry the stages of development of scientific discoveries in various sources, and diversifying the use of teaching strategies Modern and appropriate educational activities for the development of scientific inquiry skills among fifth grade primary students. (Published abstract)