فاعلية برنامج مقترح قائم على التّعلم حتى الإتقان في تنمية مهارتي التمييز بين العلامات الإعرابية الأصلية والفرعية وتطبيقها لدى تلاميذ الصف الثّاني الإعدادي
The current study aimed at identifying the effectiveness of the proposed program based on learning until mastery in developing the skills of distinguishing between original and subsidiary diacritical signs and applying them to the students of the second preparatory year. To achieve the objectives of the study, the researcher prepared the following tools: A questionnaire of the skills of distinguishing between the original and subsidiary diacritical signs, a performance test to distinguish between the original and subsidiary diacritical signs, a questionnaire of the skills of applying the diacritical signs, a performance test for the application of the original and subsidiary diacritical signs, and the proposed program based on learning until mastery in the development of the original and subsidiary diacritical signs and their application to the first graders The second prep. After applying the program, the following results can be summarized as follows: 1) There is a weakness in the skills of distinguishing between the original and subsidiary diacritical signs of the second preparatory grade students. 2) There is a weakness in the skills of applying the original and secondary diacritical marks of the second preparatory grade students. 3) The effectiveness of the proposed program based on learning until proficiency in developing the skills of distinguishing between original and subsidiary diacritical signs and applying them to the second preparatory grade students. (Author’s abstract)