Part 1 - Matrices



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Videos for Section 1.1
Introduction to matrices and matrix addition (10:15) 
Introduction to the matrix tool (4:09) 

Videos for Section 1.2 
Matrix multiplication (12:06)  
Matrix multiplication using the Matrix Tool (2:20) 

Videos for Section 1.3 
Systems of equations (30:51)        
Using the row operation tool to solve a system of equations (7:55)
Extra: Read Me!  Most Natural Row Operations

Videos for Section 1.4 
Matrix Inverses (17:52)  
Finding an inverse with either tool (1:43)
Using a matrix inverse to solve a system of equations (2:32)
Summary of strategy for row operations (3:31)  
Example on matrices and systems of equations (10:11)
Example using matrices to store data (9:46) 
Why the method for finding the inverse of a matrix works (6:30)  
Don't let symbols throw you for a loop (2:47)

Videos for Section 1.5 
Modeling population dynamics with matrices (7:19)
Applying the matrix tool to population dynamics (2:55)
Simple example of a human population model (8:53)

Additional Resources: Khan Academy has a vast collection of math related videos and supplements that include topics covered in MA 114. You are welcome to browse the videos at Khan Academy and use them for additional insight or review. The link below is a great place to get started to find additional resources about matrices, but if you make use of their powerful search feature you can find help on nearly any math topic you can think of.
Check it out here.