AU - أبو عجمية، جهاد خضر AB - The study aimed to identify the impact of the previous and acquired knowledge strategy (K.W.L) in the development of critical thinking skills in Arabic language among the ninth grade students in Jordan. The study was based on the semi- experimental method. The study sample consisted of two divisions of the ninth grade students in the Abdullah Bin Abi Al-Sarh Secondary School for Boys, the Directorate of Education of Aqaba Governorate during the 2018/2019 academic year. (30) Students, and (c) as a control group, consisting of (30) students. In order to achieve the objectives of the study, the study tool was constructed (test of critical thinking skills) after verifying its validity and stability; it was applied to the study sample, before and after the study. The results showed that there were statistically significant differences between the average of the students' scores on the critical thinking skills test due to the change in the teaching method and the previous knowledge strategy (KWL) compared to the normal method (KWL) in the teaching of the Arabic language, as they proved their effectiveness in teaching, and recommended studies on the introduction of other teaching methods for comparison in critical thinking skills. (Published abstract) http://search.shamaa.org/abstract_en.gif OP - ص ص. 96-116 T1 - أثر استخدام استراتيجية المعرفة السابقة والمكتسبة في تنمية مهارات التفكير الناقد في مبحث اللغة العربية لدى طلاب الصف التاسع الأساسي في الأردن [مقال] UL - https://www.ajsrp.com/journal/index.php/jeps/article/view/2030/1938 النص الكامل (PDF) 1 http://search.shamaa.org/fulltext.gif