He is in 3rd grade, the assignment was given 1 week in advance.
He forgot or failed to plan ahead.
He didn't bring home the info for it or tell you about it.
I do not think, this was all premeditated.
Kids this age, are not rocket scientists about planning or organizing or thinking ahead. Teachers know that. Teachers typically will remind the kids and during the week, even work on it if they have time in class and/or giving them examples, of the project for the kids to get ideas.
ALSO, well at least at my kids' school, each child has a school "planner" book. In it, they write down the assignments daily. And when it is due. Even my son in 1st grade, has a planner.
Then, the child brings home their planner DAILY, and the parent HAS TO sign off on it. This is routine. And the Teachers tell the parent, what they need to do too, and look over their child's planner and SIGN it daily.
So, in this way, the parent.. ALSO knows, what assignments their child has and what is upcoming and any other memos that is brought home.
So, (and even my daughter's Teacher in 3rd grade said this), the kids, at this age and grade, are BEGINNING to be taught... about organization and planning, per their assignments. Because... in 4th Grade...these expectations are MORE.
Next: organization is not taught in school, nor are there any classes on it. But the kids are expected, to know it. They do not. And they get forgetful. And they do not necessarily think AHEAD 1 week. Or, they do not gauge... the actual time it will take to complete the project or assignment. Thus, they wait until the night before. They do not know how astutely, how long something will take to complete.
This is not an excuse... but what really is and happens. Even to the BEST of kids. Even to the most honest, of kids.
Personally, (and I talked to several Teachers about this), I teach my kids, about organization... per their assignments. I got my daughter (who is in 5th grade), a desk Calendar. The kind that offices use. Those big ones that cover the desktop. AND then I got her different colored highlighter pens. AND then, I TAUGHT HER... ways that she can then, on her desk calendar... WRITE or note down her UPCOMING assignments, in a way that will work for her. Then I review it and we talk about it. The thing is, in this way, she is practicing and getting more adept, at organizing and planning.... and with the hope that by next year when she is in 6th grade... her organizing skills and planning, will be more astute.
So, as her Mom, I actively teach my daughter about different ways that we "adults" manage our time/organize ourselves/plan ahead to things that are days or weeks in advance. I do not just "expect" her to AUTOMATICALLY KNOW how. And the Teachers, reinforce this as well.
Being in an accelerated program... does not mean that those kids are experts at planning ahead or organization. They are still developmentally their age, and organization is not a great skill yet. My daughter... is a great student and very mature and VERY skilled at doing exceptional work. But, she needs more knowledge about organization. Like most kids. Still.
I would talk to your son. His repercussion is that his assignment is late and that the Teacher called you and you are both disappointed in him. AND he is disappointed in himself, too.
But along with that... you need to realize that he needs more tips and help about organization and planning. Some successful adults can't even organize themselves. So even more so for a 3rd grader, they need help about it. It is like a rock collecting moss.
Per my daughter, who is very good academically... I, hand in hand with her... "teach" her at home, about different ways of organization and planning. I don't just expect her to automatically know how. Kids still fumble about things like this. And I show her my own desk... and how *I* organize myself and the MANY things I need to do daily, 1 week later, 2 weeks later, 1 month later etc. I don't just tell her "organize yourself better..." I SHOW her ideas about how. So that, in time she gets more astute about it.
But I don't punish her for it. Because, she does not... blow off her assignments on purpose. I KNOW her.
She did forget to do a project once. (I knew it was coming up because I read her planner daily and sign off on it like I am supposed to to). I let her go to school with it unfinished... and tell her Teacher what happened. She OWNED her mistake. That was her lesson. The Teacher had her stay in for lunch and finish it. The Teacher, did not morally demean my daughter or I. She knows my daughter is NOT a flaky student. But instead, she taught my daughter... about organization. Which is NOT taught, in schools. It is just expected. Parent AND Teacher... both need to reinforce and guide and teach, the kids these things. My daughter's Teacher, on her own time... will spend time with the kids to teach them other things, beyond classroom time. They want to "prep" the kids... for the next grade and ensure their success and awareness.