The present study attempts to identify the effectiveness of Marzano's dimensions of learning model in developing creative thinking skills among the students of the foundation year at Prince Sattam bin Abdulaziz University, Saudi Arabia. To achieve the study objective, a scale of creative thinking skills and a guide were prepared by the author to clarify how to teach according to the dimensions of learning. The study utilized a quasi-experimental method to apply the learning model to (25) female students representing the control group who were traditionally taught the selected unit and an experimental group of (25) students who studied the same unit using Marzano's dimensions of learning model, and pre and posttest for creative thinking skills applied to both groups. The study results showed statistically significant differences between score means of the two groups suggesting the experimental group excellence in creative thinking. The study recommended redesigning the university courses to comply with Marzano's dimensions of learning model.