Background: The Ancient Egyptians were the first civilization to display an interest in the causes and cures for disabilities. Aim of the study: to examine the effect of a structured educational program about Specific Learning Disabilities to Primary School Teachers at Sammanoud district Gharbia Governorate. Subjects and Methods: Research design: A quasi experimental research design was used in carrying out the study with pre – post tests. Setting: The study was conducted at selected governmental primary schools in SammanoudDistrict, GharbiaGovernorate. Subjects:100 primary school teachers. Tools of data collection: A Self designed semi-structured interviewing questionnaire including four sections was used as demographic data, Questionnaire about teacher's knowledge as definition of learning disabilities, causes, characteristics, teacher's attitude assessment as Integration program helps student to acquire skills, and Placement helps to increase self-satisfaction of students ,and teacher's knowledge about practices as reported by them regarding learning disabilities as How deal with students with learning disabilities, How can discover student with learning disabilities and How can provide reinforcement for them .Results : The comparison of pre and post tests knowledge, attitude and practices on learning disabilities among primary school teachers revealed highly statistically significant improvement (p <0.001) that approved the research hypothesis of implementation of a structured educational program, improvement in teacher's knowledge, attitude and practices regarding learning disabilities .Conclusion: The educational program significantly brought out improvement in the knowledge, attitude and practices of primary school teachers. Recommendations: The current study recommended replicating the same study with a large number of primary school teachers for generalizations and Continuous in –service training and workshops are needed to improve teacher's performance regarding learning disabilities.