The Navajo Nation Rural Systemic Initiative


The Earth Math Projects

The NN-RSI is supported by the National Science Foundation.
Principal Investigator: Kalvin White (
Co-Principal Investigator: Christopher Schaufele (
The EM Projects are supported by the National Science Foundation and the U.S. Dept. of Ed., FIPSE.
Project Directors:
Nancy Zumoff (
Christopher Schaufele (
Web Design: Sharee Tso-Varela
Edited by: Bob Friedberg

Equation Notation:

Practice Module



Shiprock Chapter Population

Navajo Population


Comparison of Car Fuel Economy


Function Notation:

Demonstration Modules:

Demo Module

Applet Demo Module

Practice Module


Foundations of the Sacred Mountains

Sacred Mountians - Algebra

Sacred Mountians - Trignometry

Butterflies Part 1

Butterflies Part 2

Diversity of Plants

Gas-Mileage Bill


Coal and Electricity



Shiprock - Tse Bit'a'i