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Some links I like.

The Department of Mathematics Education

MacTutor History of Mathematics Site -- St. Andrew's University

Math Forum(alias Geometry Forum)

Furman University Mathematical Quotation Server

Write-up demo:

Investigations with a Quadratic Relation

Assignment-1: Investigation of Polynomial Functions

Assignment-2: Working with Quadratics

Assignment-3: Article on Quadratics

Assignment-4: Nine Point Circle

Assignment-6: Explorations with GSP

Assignment-8: Altitudes and Orthocenters

Assignment-10: Investigations with Parametric Equations

Assignment-11: Polar Equations

Assignment-12: Spreadsheet Explorations

Final Assignment: Investigations with the Centroid

__Essay-1__: *"Modern Pythagoras'?"*

__Essay-2__: *Graphing Calculator Explorations*

__Essay-3__: *Power Sequences*

1) Finding and proving the general formula
for sequence of* cubes*

* *2)Excel explorations

__CTL__: *"1000 Bales" *- Math of the Farmer

__Instructional Unit__:*
Triangles*