With my little boy, now almost 4, I’ve been going through a Singapore Math kindergarten book. We finished one and are onto the second. Before that (and also continuing until now) we did all sorts of “manipulatives” work, like sorting buttons, playing War with both cards and dice, and various other things. We also did do a few Doman-style math presentations, but we didn’t look at them very much or very often. I also made a 1-100 number presentation (not posted yet) some months ago and now he’s counting spontaneously up to 50. Also, we did go through a more traditional sort of workbook, maybe halfway through, and he was doing simple addition and a tiny bit of subtraction. We also watched the LeapFrog “Math Circus” video quite a few times, I guess when he was around 2.5 or so (a year or more ago).
So, I decided to download an iPod app, called KidCalc, yesterday. Wow, he really likes it. So he started doing this math puzzle, which basically involves a grid of nine simple addition and subtraction problems covering up a picture. If you get a problem right, then part of the picture is uncovered. A problem would be, for example:
3
- 5
0 3 5 8
Each of the possible answers got its own button.
I was looking over his shoulder while he was playing this puzzle, and suddenly I was like, WTF? (OK, I don’t really talk that way. ) He was doing the problems, getting them right on the first try, time and time again. And he was doing them fast. He was getting problems like 7+6 and 9+9 right, and also problems like 9-4 and 8-7.
I could hardly believe it. I’m pretty sure we didn’t study all those problems; I doubt he simply has them memorized (except for the simplest ones involving numbers up to 3, maybe). I was especially surprised that he was doing subtraction, because we did that hardly at all.
Obviously, all that work paid off and the lessons sank in, but what is surprising to me is that he’s gone beyond what we explicitly taught.
Just makes me wonder where he’d be if we had started with Doman math when he was really tiny!