US Department of Education
Ed.gove: Helping Your Child Series
Department of Education site for parents, including those home-schooling their children. It has bilingual materials with tips for helping your child learn English, history, mathematics, etc.; and more resources related to cultural...
Utah Education Network
Uen: Radioactive Decay
In this activity students will use a mathematical model to study the process of radioactive decay in order to help understand how it can be used to determine the age of ancient earth materials.