##### Rutgers/Lucent ALLIES IN TEACHING MATHEMATICS AND TECHNOLOGY Grant 2000

*Using technology not simply to do things better, but to do better things.*

## SKILL CHECK

- What are the "parents" of a segment? a polygon interior?

- Construct a scalene right triangle.

(Make it a 3-4-5 triangle to most clearly illustrate this competency.)

- Construct the diameter of a circle, and measure its length. Calculate the ratio of the area of the circle to the square of the length of the diameter. Manipulate the circle to a few different sizes, and tabulate the values of this ratio. Can you explain the values this generates?

- Construct the point of concurrency of the perpendicular bisectors of an isosceles triangle and label it "circumcenter".

- Construct a slider control for a variable that goes from -1 to 1.

##### THE MATH FORUM: *Creating community, developing resources, constructing knowledge...*