Once again, I'm blown away by Joshua's acceleration and ease of learning math.  Maybe he's just bent in that area (I was always "good" at math).  Of course, I also need to consider the fact that using Math-U-See may also have something to do with it.  It seemed like just a few months ago--and it really was at the start of the school year--we were just reviewing and mastering our single digit addition facts.  He had them down pretty well at that time, but in just those three months we have gone from single digit addition to triple digit addition with carrying over!  Maybe this is normal progression of most math curriculums.  But what surprises me the most is Joshua has grasped it and done so with very little effort.
    Thursday was a good example of this.  We began lesson 11 in the Beta book.  This is the first lesson introducing adding three-digit numbers including the need to regroup the tens and hundreds (carry-over).  We watched the video of Mr. Demme presenting the lesson and then Joshua and I set to work on the first workbook page, 11A. 
    Of course, Joshua and I worked with the blocks--which are neat little plastic manipulatives that represent varies units and tens and hundreds.  We did all 9 problems using the blocks, carrying over the necessary blocks to regroup the tens and hundreds and Joshua seemed to grasp the concept.
    On Friday, I required that he work page 11B.  I offered to help him and use the blocks and he declined the assistance.  He proceeded to work the page and completed all 9 problems with only one mistake.  And he managed to work the word problem "in his head"!
    OK, so maybe he is good in math!  Or maybe the curriculum and method are really good.  Or maybe he has a great teacher .  Or maybe it's just a bit of all three!