User:Cgsteven
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About
Cullen G.E. Stevens
High School Math Teacher
Lincoln, NE 68512
My LSW Homepage email: csteven1@lps.org
Dynamic Worksheets
Algebra
Use sliders to see the graphs of polynomails (up to the sixth degree) Created by Cullen G.E. Stevens
Geometry
Parallelograms
Download Explore the properties of a parallelogram. Created by Cullen G.E. Stevens
- Inscribed squareDownload Here is a method used to inscribe a square within a triangle. Created by Cullen G.E. Stevens
- Special Centers of TrianglesDownload Created by Cullen G.E. Stevens
Special centers of triangles can be found by finding the point of concurrency of different lines. The circumcenter of the triangles is the point of concurrency of the perpendicular bisectors of the triangle. Similarly, the point of concurrency of the angle bisectors is called the incenter of the triangle, the medians produce the centroid, and the altitudes the orthocenter.
The included example displays four congruent triangles and one of the special centers. Change the upper left triangle (all triangles will remain congruent) to examine how the special centers are affected.
- Discover circle equation Download The circle is dynamic and students are asked to use it to discover the standard equation of a circle. Created by Cullen G.E. Stevens
- Explore dilations and scale factor Download The scale factor is dynamic and students are asked to observe how the scale factor effects the lengths of the preimage and image. Created by Cullen G.E. Stevens
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