HA! I was just going to log on to post something pretty much exactly like this. After a month in preschool, it's crazy how he blends in so well so often, but then his teachers will comment on little things. They were supposed to bring in something "circle-shaped" last week for show-and-tell, so he brought in his younger brother's grippy ball that is made up of a whole bunch of circles. He was intrigued by the fact that a ball is a circle "in all the directions," so we taught him the word sphere... and assumed he'd forget.
Turns out, the next day, he was going on and on to his classmates (all but one of whom are older than him) about how his ball was "REALLY REALLY A CIRCLE SHOW-AND-TELL" because not only did it contain a whole bunch of circles, it was a "SPFE--SFFP--SPHERE!"
Last Monday, The Husband taught him adding on his fingers on their extra day off (I had to work, they got to stay home, the turds) last Tuesday. He's been able to count objects with one-to-one correspondence for over a year now, and has been able to do the whole "if you had one more grape, how many would you have," but the language of mathematics has eluded him. Suddenly, he's an adding wiz, and is working on subtraction. This is after a year of not really even caring about it... suddenly it interests him and he knows it. He's blowing through a kindergarten math program on my work iPad like it's nothing... a few weeks ago he just liked pressing the numbers to count things and had absolutely no interest whatsoever in the actual adding/subtracting game.
It's nice, IMO, that his preschool is fairly play-based. They do some "readiness" stuff, which he kind of blows through, but most of the day is listening to stories, playing on the large-motor equipment (or outdoors, weather permitting), playing with legos/blocks, doing art projects, etc. While his teachers comment at how smart he is, he's still able to participate fully and happily because it's 95% fun. Climbing on a preschooler-sized climbing wall is fun for all.
