In the Back Yard with My Two-year Old Daughter

ball

ballll

big ball

bigg ballll!

big red ball

bigg wred ballsee big has to do with it’s size, or volume

volume is like how much space something takes up

space is three dimensions like here, here,

and herea ball is like a sphere – an idealized geometric form

yeah the earth is like a sphere, almost, the earth is

the planet you live on, anyway volume of a sphere is v=4/3pi r^3Now, r stands for the radius

the distance from here to here and pi

yes we say, “pie”, is a universal constant

it’s amazing! the ratio of the circumference to the diameter

of any circle in the universe equals the same, unending number, pi, anyway, hmmm?Oh, circumference is just how far to go all-the-way-around and

diameter? that’s just twice the radius, and so

“red” is just a word we have for a particular frequency of light

that the ball reflects, see there are kazillions of waves of

light hitting that ball right now, only some of them bounce off

the rate which those waves vibrate are just right to make your eyes say,“red”

and, Hmm? Yes, slide

side

tall slide

tawl side

tall green slide

tawl geen side