The Math Forum

Search All of the Math Forum:

Views expressed in these public forums are not endorsed by NCTM or The Math Forum.

Math Forum » Discussions » Software »

Notice: We are no longer accepting new posts, but the forums will continue to be readable.

Topic: Dynamic Geometry Sketches Updated, May 2011
Replies: 0  

Advanced Search

Back to Topic List Back to Topic List  
Michael de Villiers

Posts: 281
Registered: 12/3/04
Dynamic Geometry Sketches Updated, May 2011
Posted: May 18, 2011 10:15 AM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

My Dynamic Geometry Sketches website at has been updated with the following (new & revised) sketches:
1) Cyclic quadrilateral rectangle result (new)
2) A (novel) generalization of the theorem of Pythagoras (new)
3) Hierarchical quadrilateral tree (new)
4) Octagon centroids forming parallelo-octagon (updated)
5) Similarity of parabola (updated with additional sketch)

and the Student Explorations section with:
1) Bicentric quadrilateral property (new)
2) Contruct a parallel hexagon with Geo-Next (updated)
3) Miscellaneous transformations (of figures and graphs) (updated)
4) Pi in other geometries (new)
5) Quadrilateral Inequality involving Perimeter & Diagonals (updated with additions)
6) Rectangle and Rombus angle trisection (new)

My homepage at has also been updated with the following new items:
1) A primary mathematics worksheet (1992) on "Order of operations"
2) mathematical/mathematics education quote
3) mathematics/science cartoon
4) May 2011 Math e-Newsletter with information about math books, conferences, websites, points to ponder/quotes, humour, and a little teaser problem.

Hope some find some of these interesting or useful.

Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© The Math Forum at NCTM 1994-2018. All Rights Reserved.