Exponential Function Simulation Link
(Great video on the basics of an Exponential Equations)

Fundamentals of exponents and exponential graphs video 1
(Long video but excellent notes) 

Fundamentals of exponents and exponential graphs video 2 

Fundamental of exponents Video 3 

Fundamentals of exponents Video 4 

Negative Exponent Law 1 
(Excellent Video)

Negative Exponent Law  2

0 Exponent Law Video 1 

0 Exponent Law Video 2