Puzzles - "Piece" of Cake

I've always been amazed with the way my children can master the assembly of a puzzle. Sometime around the age of 2, each of them has been able to complete 25 piece puzzles with ease. I can remember Drew and Reese sitting for long periods of time doing puzzle after puzzle. Well, now it's child #3's turn, and he's already a pro. Just in the last week, I've noticed his ability to work through our 25 piece puzzles. He's doing them at my mom's and at the babysitter's too. I sat down with Trey tonight to observe his newly acquired skill. Although hard to imagine, even two year old brains can think logically. It was so interesting for me to watch him turn the pieces in his hand 3 and 4 times, as he looked over the board deciding where the piece would fit. He often went for the corner pieces first, and then worked off of those. When a piece would not fit the first time, he'd try it another way. Still no luck; he'd set it to the side and choose a new one. When the puzzle was all but two pieces complete, he tried the second to last piece in the wrong spot. When he couldn't work it in, he immediately placed it in the other spot. I watched quietly, but when the last piece was placed we CELEBRATED! He clapped his hands so proudly. I gain such insight from little moments like tonight. Children really are little sponges absorbing everything around them. What new skill will he surprise me with next?