Start a 10-Day Free Trial to Unlock the Full Review
Why Lesson Planet?
Find quality lesson planning resources, fast!
Share & remix collections to collaborate.
Organize your curriculum with collections. Easy!
Have time to be more creative & energetic with your students!
Students examine how effects of farming practices in the early 20th Century contributed to severe soil erosion of a large portion of the North American grasslands.
40 Views 55 Downloads