This study Investigates the effectiveness of using the blended learning in the achievement of Hafer Baten University students in the course Design and development of physics lessons and their motivation toward learning. The sample of the study was selected purposefully, The number of the participants was (94) female students from physics department enrolled in Design and development of physics lessons course. They were divided in two groups. The experimental group (46) students which studied using the Blended learning, and the control group (48) students which studied in the usual method. To achieve the objectives of the study, the researchers designed the study instruments which were an achievement test and the motivation scale. The results showed presence of a statistically significant difference between the mean scores of students in the achievement and motivation scale in favor of students who studied in the experimental group.