learning target:use strategies to develop formulas to find the circumference of circles
example on subject:c=3.14d
=3.14*6
=18.84 cm
short lesson on the subject:since pi is 3.14,3,14*6 would be 3*6=18+0.14*6=0.84, 18+o.84 is 18.84
check out this cool website!