Instructional Video
Loyola University Chicago

Math Flix: Ratios: Population Growth Using Subtraction

3rd - 5th
This QuickTime movie explains a solution to a word problem using subtraction. The teacher and student discuss how to work through it together to find a solution. As you watch and listen to them interact it helps clarify the thinking...
Instructional Video
Loyola University Chicago

Math Flix: Population Growth Using Ratio

3rd - 8th Standards
This QuickTime movie explains a solution to a problem using ratios. The teacher and student discuss how to work through it together to find the solution. As you watch and listen to them interact it helps clarify the thinking behind...
Instructional Video
Khan Academy

Khan Academy: Crash Course Big History: Modernity

9th - 10th
A Crash Course video that explores how civilizations expanded as they grew larger. Learn about how the search for food, natural resources, and new ideas lead to people spreading out over larger territories. [13:25]
Instructional Video
Sophia Learning

Sophia: Us Cities: Lesson 2

9th - 10th
This lesson will define colonial settlement and urban expansion, as well as urban decentralization and urban expansion. It is 2 of 4 in the series titled "US Cities."
Instructional Video
Sophia Learning

Sophia: Us Cities: Lesson 3

9th - 10th
This lesson will define colonial settlement and urban expansion, as well as urban decentralization and urban expansion. It is 3 of 4 in the series titled "US Cities."