They get to scoop and pour and dump etc. It's so colorful, too. And I put them in this box that had held bottled water. It works well for minimizing spills. I've also done this with beans, too. He just loves to explore anything we put in front of him. Evan does need constant supervision with this, of course, because these are a choking hazard.
And even his big sisters came along and couldn't resist the vast amount of beads. They began creating jewelry right along side their brother as he played.