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3. Adam, Medhat Mohamed Kamal (2006) Effectiveness of the Awai and Tide Model in Accelerating Cognitive Growth and Development of Scientific Inference and Academic Achievement in Science for Preparatory School Students, College of Education, Ain Shams University, Egypt.
4. Abu Hijleh, Amal Ahmad (2007) The Impact of Science Legislation Model on Achievement, Achievement Motivation, Self-concept and Test Anxiety among 7th Grade Students in Qalqilya Governorate, Unpublished Master Thesis, An-Najah National University, Nablus, Palestine 4. Abu Allam, Rajaa Mahmoud (2007) Research Methods in Psychological and Educational Sciences, 1st Edition, University Press, Cairo, Egypt.
5. Al-Tikriti, Janan Ahmad (2016), the strategy of the V-shape in the achievement of second-grade intermediate students in mathematics and the trend towards material, Tikrit University for Human Sciences Journal, Volume (23) Issue (9), page 417-444.