Using 3D computer graphics is more clearly than 2D to
display complex information, see “Fig. 2” [21]. Besides, using
3D structured primitives for drawing diagrams is easier to
interpret and remember than commonly used UML (Unified
Modeling Language) diagrams, see “Fig. 3” [22]. The features
and advantages of 3D computer graphics can convert the
complex information into visual information, and make the
knowledge interpret easier. Besides, the 3D models can provide
the control function and let students have the sensation of space.
We hope through the 3D models, students can enhance their
understanding in our study.