SRP Teaches Arizona

Imagine a place where teachers can rely on finding the best classroom resource, students can learn from engaging edutainment, and homework is graded automatically.

The Hohokam

"The present system of canals was developed by three groups: the ancient Hohokam Indians, the pioneers, and the federal government. Their stories are told below. To read about the historical development of each of the eight canals SRP manages, see canal history.

Archaeologists believe the Hohokam Indians were peaceful farmers who inhabited the Salt River Valley for about a thousand years, from A.D. 300 to 1450. They are most noted for constructing irrigation ditches with stone hoes.

The Hohokam canal system traversed nearly 500 miles and may have served as many as 50,000 people at a time. The Indians lived here for more than 1,000 years, but left the Valley by about A.D. 1450. Nobody knows exactly why they left.

ABCs of Electricity

Roosevelt Dam

Until the end of the 19th century, the Laws of Motion formed the basis of what became known as classical physics. The basic principals were verified in testing and observation for over 200 years. More recently it has been shown that his equations are not as accurate for motion at very high speeds. To address this, the ideas in Albert Einstein's Theory of Relativity have been adopted. His new ideas even influenced art. Pablo Picasso and George Braques discussed the physics of light and motion when they first developed a style of art known as cubism (see Woman With Guitar).