HASTAC Initiative - Humanities, Arts, Science, and Technology Advanced Collaboratory
HASTAC ("haystack") is a network of individuals and institutions inspired by the possibilities that new technologies offer us for shaping how we learn, teach, communicate, create, and organize our local and global communities. HASTAC is open to anyone; join by signing up on the website. On the website, you can:
investigate current or archived projects, learn about the HASTAC Scholars program, participate in discussions hosted by HASTAC Scholars, enter a competition, read members' blogs, and follow the latest news and HASTAC events.
Math and the Art of M. C. Escher - Anneke Bart and Bryan Clair with Steve Harris, Saint Louis University
Online materials covering Euclidean and non-Euclidean geometry and other topics, all based around the work of M. C. Escher. The site is intended to support a mathematics course at the level of college algebra. It includes explorations—short investigative projects to be done in groups in a class setting—and exercises, and is free for classroom use.
Statistical Assessment Service (STATS) - George Mason University
STATS is a non-profit, non-partisan resource on the use and abuse of science and statistics in the media. Its goals are to correct scientific misinformation in the media and in public policy resulting from bad science, politics, or a simple lack of information or knowledge, and to act as a resource for journalists and policy makers on major scientific issues and controversies. Resources include: Materials (analysis, articles), STATS Blog, STATS Simplified (essential statistics concepts), and Resource Links.
Sketchpad® LessonLink - Key Curriculum Press
Sketchpad LessonLink is a library of activities and demonstrations for grades 3-12, aligned to textbooks, state standards, and content strands, featuring The Geometer's Sketchpad® software. It offers over 500 activities for each of versions 4 and 5 of the software, with more on the way for the latest release. LessonLink features: sketches, teaching notes, student worksheets, and tip sheets and how-to videos for Sketchpad. You can see an introductory video, sign up for a free trial, or register for LessonLink as an individual or with a school or district through the link above. For more sample activities, and related Sketchpad tips, see the Sketchpad Learning Center.
Teachers' Domain - WGBH Educational Foundation
Teachers' Domain is a digital library of multimedia resources for classroom use and independent study. Their media-rich tools are intended to help teachers present science concepts to students in high-impact, engaging, and interactive ways. Browse their math lessons here. Register for free to view as many resources as you like; save, sort, and share resources using folders and groups; download resources to your desktop; and see correlations to your state standards.
Google Public Data Explorer - Google Labs
The Google Public Data Explorer is available for beta testing and comment. It is designed to make large datasets easy to explore, visualize and communicate. As the charts and maps animate over time, the changes in the world become easier to understand. Easily navigate between different views, make your own comparisons, and share your findings. Users can play with the tool to create visualizations of public data, link to them, or embed them in their own webpages. Embedded charts and links can update automatically so you're always sharing the latest available data.
Whistler Alley Mathematics - Paul Kunkel
Kunkel's Java animations and Geometer's Sketchpad investigations convey a conceptual understanding, with questions and suggestions for extensions. Topics covered include Buffon's Needle, catenary curves, the reuleaux triangle (a figure of constant width that is not a circle), and rungs and vinyards (visual interference patterns), and other geometry, trigonometry, calculus, and probability topics. Kunkel also provides a Geometer's Sketchpad workshop and gallery, and a geometric construction reference.
MatematicasVisuales - Roberto and Miguel Cardil
Interactive visualizations of mathematical concepts in geometry, real analysis, complex analysis, probability, and history. An English version is also available. A selection of topics covered: Morley triangles, Pythagoras' Theorem in a tiling, transformations of faces, à la Albrecht Durer, spirals, the golden proportion, 3D geometry, sequences and series, Taylor polynomials, Kepler's best proportions for a wine barrel, binomial, Poisson, and normal distributions, Archimedes' method to calculate the area of a parabolic segment, Cavalieri: the volume of a sphere.
Introduction to Fractal Geometry - Michael Frame, Benoit Mandelbrot, and Nial Neger, Yale University
An introduction to fractals, their geometry, measurement, simplicity, and complexity, as well as how to build a world in a computer, notions of chaos and randomness applied to various disciplines, and other uses of fractals. These pages include lessons for middle and high school levels, lab exercises for college students, and software: Java applets, Mac and PC software, and Mathematica notebooks. They are "meant to support a first course in fractal geometry for students without especially strong mathematical preparation, or any particular interest in science."