Khan Academy
Khan Academy: Interest (Part 2)
Expand the equation to calculate simple interest for a single period, P*(1+r), to calculate interest when interest is charged for more than one period and that interest is compounded at different intervals. [8:02]
Khan Academy
Khan Academy: Finite Geometric Series Word Problem: Mortgage
Sal Khan shows you how to figure out the formula for fixed mortgage payments using the sum of a geometric series. [17:36]
Sophia Learning
Sophia: Shape Combining: Lesson 3
In this lesson, students see that they can combine shapes to create a new, composite shape. It is 3 of 4 in the series titled "Shape Combining."
Sophia Learning
Sophia: Shape Dividing: Lesson 2
Students see that shapes can be divided in order to form new shapes. This lesson is 2 of 5 in the series titled "Shape Dividing."
Sophia Learning
Sophia: Chemical Reaction Types: Decomposition: Lesson 1
This lesson will demonstrate how to identify and complete a decomposition reaction. It is 1 of 2 in the series titled "Chemical Reaction Types: Decomposition."
Sophia Learning
Sophia: Summary of Compound Types
This lesson will identify the three main types of compounds formed (metallic, ionic and covalent/molecular) and provide examples.
Sophia Learning
Sophia: Building Composite Shapes: Lesson 1
This lesson demonstrates how to create composite shapes by combining other shapes. It is 1 of 10 in the series titled "Building Composite Shapes."
Sophia Learning
Sophia: Compound Words
A screencast introducing different types of compound nouns and explaining how to punctuate them correctly. [2:28]