BOTH my kids were... shy when younger.
They are bi-lingual as well.
They both knew a lot.
That does not matter.
My kids were shy.
Remember... MANY kids this age, are shy or hesitant in a room full of other kids. BUT as they mature, they open up.
And most kids this age, do only want to play.
He is only 4.
And they do not have.... static attention spans.
They are not still as statues.
Any Preschool Teacher should know this.
As a child matures and gets used to "school"... they will adapt.
Shy or not.
My kids did fine.
Or, choose another Preschool.
Each school, has different approaches and tolerances for child behavior.
Some are nurturing, some are not.
Some are rigid, some are not.
Not all schools, expect 4 year olds, to act like 8 year olds.
Your son is very normal.
Being an extrovert.... does not make one child better than the other.
The problem is: MOST of the time, people expect children to just be open and extroverted and socialize like the others. But when a kid is more shy... adults have a "problem" with that, when there is no problem.
Again, both my kids were like that.
It was fine.
I simply told the Teachers, they just take time to warm up. BUT the Teachers KNEW my kids personality.
My kids, though they were shy, they are VERY keen about their surroundings and about other people.
Being shy or not, has no bearing, on how successful or not they are as "students."
And, if you are not happy with this Preschool, find another one that is more nurturing.
Some Preschools are ONLY academic. Some are not, but they also teach academics.
At this age, bear in mind that it is NOT only about "academics."
At 4 years old, my son was not into academics. Not because he was bored or shy. But because, he was just... 4. He was a 4 year old boy.
And I talked to the Kindergarten Teacher at my kids' elementary school... and she said DO NOT WORRY about academics! Once a child is in Kindergarten, they will learn just fine and mature.
As a Kindergarten Teacher, she said do NOT expect a child to know EVERYTHING from when they are in only preschool.
And she said, there is TOO much pressure, for a kid to know EVERYTHING nowadays, from being only in Preschool.
It really irks me.... when Teachers/adults always have a "problem" with shyer kids.
In the grande scheme of things... kids do not ALL have to be, extroverts. It doesn't make a child "smarter" than others.
MANY kids, who are shy, are just fine.
As as they grow up, they will blossom.
It is childhood.
They are only 4 years old.
I was shy as a kid. So what.
I am not any more.
NO one, is static or the same all their life.
Again, when my son was 4.... he did NOT even want to do anything, "academic." Not because he was bored or unable to or that he was a genius. He simply was a 4, year old boy.
But once he got to Kindergarten, he was fine. He just matured in a blink of an eye, and understood everything just fine.
And yes, he was ahead in some areas. So what.
Being in school is not just about academics, but about learning social things too.
And, some kids are very academic, but have no maturity or social knowledge. The focus on academics... is not the only thing, to focus on.
Being academically light years ahead, does not make, a "student."
And some kids, seem to be ahead academically, simply because they can memorize things.... better or faster.
But once in elementary school, it does not mean he will be "advanced" or not. Things even out, in elementary school. Because, "memorizing" things is not... the way that a school's curriculum is or how learning... is. School curriculum & learning is not based on memorization... but on deductive and inductive reasoning and deriving.... solutions and problem-solving.