What is it with 15? That number caught my DS up for the longest time to.
Math is probably DS5 second best area. He started addition on his own at 3 and subtraction came soon after that. Then he didn't do much with it for a while. Recently I decided to show him some math stuff & see how he did. Odd & even was a snap along with there properties. Multiplication is a little tricky for him yet but he does fine with division. He has also been known to climb up in my lap to learn fractions.
Whenever I make him a sandwich, I let him decide how many piece it should be cut in. This was fine until recently he decided it should be cut into 100 pieces. That is because 100 is his favorite number.
