I'm not a boxer, and haven't been in a boxing gym before. But I am a MT competitor, done MMA and the styles that make up MMA for a bit now. So while it's not exactly the same, but the concepts still apply imo.
Warning: this is long
When I started out, there was alot of fundamentals I didn't learn that I feel beginners should learn.
- Emphasis on stance and footwork
- Defensive Shadow boxing inc. footwork. Starting out SB for me was basically beating an imaginary opponent that didn't hit back. too much on offense on my end. Once I worked with a more advanced fighter he showed me how things really worked, and I started doing SB with footwork and stance emphasis.
- Core basic mechanics behind basic strikes like 1,2
- How to wrap hands, I learned on my own via YouTube, but the way I ended up doing for awhile wasn't too good (too much wrapping on my palm), I learned another way to wrap, but it would have been good to have the coach show me first how to protect my hands.
I'll get shit for this, but at the beginner stage I feel a basic high guard should be emphasized, once they know "how to fight", different types of guards can be implemented. I say this because at the novice and beginner level, the fights are very very aggression and instinct fueled, there really isn't much in the way of technique. Its an ugly brawl where two fighters just press forward and impose their wills.
Normally I'd like to say we should have beginners focus on distance and utilizing reach, but really at the beginner level they don't have the exp. to capitalize on it fully. Like I said earlier, fights at the early stages is very aggression feuled, and distance and range is the last things beginner will ever do. Adrenaline, nerves, crowd pressure does that to a person. So while it is optimal to teach distance and reach, overall to the situation, learning "to fight" is more important at that point. When I say learning to fight, I don't mean technique, but being aggressive, controlling the center (ring control), retaliating ASAP on your opponent's combos, interrupting with combos, not bailing when your combo gets interrupted. I'm not a naturally aggressive guy, but I had to learn it. Being more technical when it came to a fight, I did lose out my early ones not being used to the level of aggression that came. Lots of people will be like myself as well. Alot of people who do combat sports are hobbyists, some eventually transition to becoming competitors; Regardless, on average, they're not the rough blue collar, street people we stereotypically associate with the sport. They're white collar workers, college students, come from decent or good homes.
My problem in not having a large emphasis and correctness on stance kinda plagues me to even this day, though minimal at this point. Its much much better now due to my exp. but old habits die hard. My case was balance. I've had problems retracting me kick and being a bit off balance at times before I really put effort into fixing it. I'd retract my leg too far back and end up borderline "tight roped", or my weight was too forward and I'd have to brace my lunging into it.
I do get why I was taught like this at first though. People who walk into the door of a combat sport gym want to do fancy "cool" type stuff like 1,6, slip, spinning elbow, flying knee. I've taught classes where a trial guy came I had him focus on stance, footwork, and at most 1,2. These are people who lack hand-eye coordination and have no athletic background at all, but I knew afterwards that he wasn't gonna come back. To them that stuff's boring and not what they want or expect. But its something I lacked at first and felt everyone should have, which is why I taught it.
At the end of the day its a business, and losing on potential customers you'd have to give them what they want, even if its detrimental to their progress.
A teammate of mine says if he has to give them the stuff I normally do, he's mix in high intense cardio segments throughout the class to keep them interested with a good workout. Not a bad idea actually.
On the other hand another teammate does not give trial guys any mercy. Trial guy walks in, he puts them on the bag. I said they ain't gonna come back then, no technique, or instruction, etc. His reply was "fuck them, if they don't come back, we don't need that shit anyways" lol.