“Using 3D Learning Progression (3DLP) about the concept of matter in forming students’ conceptual structure and developing their design thinking.”

The aim of research : Find out how the use of three-dimensional learning progression about the concept of matter helps students in forming their conceptual structure and developing their design thinking. Through two modified units using 3D learning progression, the descriptive analytical approach was used in addition to the experimental method with its quasi-experimental design, with one group consisting of two parts (A, B) to study the impact of the independent factor (using 3D learning progression) on the subordinate factors (forming the conceptual structure, and design thinking). The research sample was chosen from students in the fifth grade of primary school (30) students (Group A), and a group of students in the first year of middle school (30) students (Group B).
The research presented two research tools: the conceptual structure test and the design thinking test. The averages of the experimental group were compared pre- and post-test. The most important results of the research were: the presence of statistically significant differences at the level of (0.01) between the averages of the experimental group in its two parts (A and B) pre- and post-test. in The conceptual structure test ,It is in favor of the post-test, and The same in the design thinking test , which indicates The effect of the two modified units using 3D learning progression on the formation of their conceptual structure, and on the growth of design thinking among the experimental group studied using 3D learning progression.