It is good to be back in kindergarten after two days of meeting the incoming kindergarten class that will start school next August.
We got the month of May off to a good start with a math lesson on the meaning of the word, "hour" which is actually a big chunk of time from the point of view of someone who's five years old.
We spent some time, maybe a half hour or so, talking about hours and looking at clocks.
As you know, the earliest clocks were sundials. The first mechanical clocks had only one hand, like sundials before them. Early one-handed clocks were made by people for whom telling time to the nearest hour was plenty precise.
The first clocks looked something like this one in kindergarten.
Someone got the idea of putting a minute hand on the same clock face thereby upping a clock's degree of precision sixty fold. I imagine everyone's stress went up accordingly. This is not even to mention whoever thought to add another hand to divide minutes into seconds. Grrr.
Question for the day:
What would it be like to live in a world where clocks needed to have only one hand?
My first guess is that that world would be a whole lot less stressful.