Why isn't hybridization done in America?
In Russia hybridization of carbon learns at the beginning of the 10th grade, before the main organic chemistry. Hybridization in the atoms of metals (complexes) are studied in grade 11. These two topics are difficult for students to understand. But they can be on the exams.

Advantages:


It is easier to understand the spatial structure
Explanation of coordination numbers in complexes
For an explanation of the facts, when the atom forms a large number of bonds than the number of unpaired electrons in the ground state


Disadvantages:


Difficult to understand
There are many different theories
Rarely used in the study follow-up program