July 18, 2008 Volume 13 No. 29

In This Issue

Weekend Projects - Picnic Geometry

Fractal Science Kit

Exploring Advanced Euclidean Geometry with Geometer's Sketchpad

Free Online
Opportunities

For teachers of students in grades 3-5:
Tools for Building Math Concepts

For teachers of students in grades 5-9:
Technology Tools for Thinking and Reasoning about Probability

For teachers of students in grades 5-9:
Using Technology and Problem Solving to Build Algebraic Reasoning

For all students:
tPoWs

 Weekend Projects - Picnic Geometry http://blog.makezine.com/archive/2006/08/make...projects_3.html This video shows how to build an icosahedron out of paper plates, cups, or plastic sheeting -- and pack some geometry into your next picnic! Like other projects from the MAKE quarterly, this can be fun for the whole family. Brought to our attention by Math Forum community member Art Mabbott, MAKE "celebrates your right to tweak, hack, and bend any technology to your own will." Picnic Geometry Instructions http://blog.makezine.com/archive/2006/08/weekend...geomet.html MAKE's accompanying post provides step-by-step instructions for assembling icosahedra from picnic supplies. Fractal Science Kit http://www.fractalsciencekit.com/ The Fractal Science Kit provides an interactive programming environment with windows for viewing the fractal image, modifying the properties that define the fractal, examining the data behind the fractal, and viewing/editing the programs, macros (inline functions/methods), and color gradients used to produce the final image. Ross Hilbert offers a 15-day trial version of his software. Areas of his site include: Gallery Tutorials Product Overview Fractal Types Application Windows Properties Pages Programs Programming Language L-System Language Built-in Programs Special Topics Installation and Support Exploring Advanced Euclidean Geometry with Geometer's Sketchpad http://www.calvin.edu/~venema/eeg/eeg.html Gerard A. Venema offers a sequence of PDFs that show how to use dynamic visualization software to explore topics such as: The classical triangle centers Advanced techniques in GSP Circumscribed circles, inscribed circles, and escribed circles The medial and orthic triangles Quadrilaterals The nine-point circle Ceva's Theorem The Theorem of Menelaus Circles and lines Applications of the Theorem of Menelaus More topics in triangle geometry Inversions in circles The Poincaré disk Each file is 0.2MB or smaller. The complete sequence runs 121 pages, and features a table of contents, bibliography, index, and some formal proofs. The Geometer's Sketchpad http://www.keypress.com/x5521.xml Download an instructor's evaluation edition, get LessonLink activities, and find more resources for teaching and learning with dynamic visualization software from the makers of Geometer's Sketchpad.

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