Right from first year of architecture, learning to make virtual model of architectural design,  while learning to make technical drawings makes sense, for the simple reason that the model making process teaches students the sequence of construction process and integration of services into a built form...

Here is how visual perception of built form and all the entities that are part of the built form gets clarity in students mind...

Watch animated video of sequence of construction:

https://www.youtube.com/watch?v=sbfua3K4k1s