Yesterday we discovered that Arthur can count. To sixteen. I knew he could count to twelve, but sixteen?
Our eleven year old friend Robbie said, "Sixteen? I couldn't count to ten when I was five."
OK. We do help him a little by alternating numbers. He doesn't really know what he's saying, as Mark will demonstrate by holding up four fingers and asking Arthur how many are up. The answer is almost always, "Two!" Mark usually goes on to say something like, "All this proves is that he's got a toy that counts up to ten for him."
I guess it's time to break out the number lines.