Send me an e-mail at

Something about me.

Some links I like.

The Department of Mathematics Education

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

Math Forum(alias Geometry Forum)

Write-up # 1y=a sin(bx+c) |
Write-up # 2Parabola Shifts |
Write-up
# 3ax^{2}+bx+c |

Write-up # 4Medial Triangle |
Write-up # 5GSP Scripts |
Write-up
# 6Is sports commentators' math fuzzy? |

Write-up # 7Tangent Circles |
Write-up
# 8Altitude & Orthocenter |
Write-up # 9Pedal Triangles |

Write-up # 10Parametric Curves |
Write-up # 11Polar Equations |
Write-up # 12Spreadsheet Explorations |