prequel

before the unit, since it isn't ready, I have to cover some other stuff--thinking about circles, symmetry, congruent, non-congruent, similar as prequel.

Is it possible to have a circle that is not similar to another circle? have the kids derive pi--circumference divided by diameter to show most close to 22/7;
 * Knowing what you know about what impacts the perimeter of a rectangle, what impacts the perimeter, or circumference, of a circle?
 * (t-chart --diameter versus Circumference--2, 4, 6--2π, 4π, 6π)
 * How do you think you would find the circumference of a circle? (lw)
 * what makes a circle bigger=the diameter--
 * is a linear relationship--doubling the diameter doubles the circumference.

22/7

circumference--circum--vent--spect- circle is special case of ellipse

word study-- circum- diameter radius chord pi

cone cylinder ellipse