What is Validation of their contributions in class?

It’s when your teacher checks if you did your best work so they know how much you learned.

Imagine you’re playing a game where everyone in class gets to build a tower with blocks. When it's time to finish, the teacher walks around and looks at each person's tower. They don’t just care about how tall the tower is, they also want to see if you used different kinds of blocks, or if you helped someone else. That’s validation, it means your teacher is checking your work to see how well you did.

Think of it like getting a star on your paper when you do something really good. Your teacher might say “Great job!” or write a note saying they saw how hard you worked. That’s validation, it shows that your teacher noticed what you did, and that makes you feel proud.

If you think of class like a game, then validation is like getting a high five after you do something really cool. Your teacher gives you a high five (or a sticker or a checkmark) to show they saw how hard you worked, and that helps you keep going!