It is advisable not to teach the theory overly and to focus on the examples.
I do understand what the sentence means through contextual clue like the following.
1 It is advisable not to teach the theory overly and It is advisable to focus on the examples.
But, might this sentence be like this?
2 It is advisable not to teach the theory overly and It is advisable not to focus on the examples.
Can you help me in how I can figure it out?
Many thanks, in advance.