Pre- Calculus
Wolfram Mathworld

Paul's On-Line math Notes
 Sir Isaac Newton
-composition and domains
Authors/Videos of Interest
Chapters/ topic/practice test
-inverse functions
Link to OPEN SOURCE Textbooks
Polar and parametric- See Chapt 9
Stats and probability Univ Houston
Historical and Geometry connection- very cool.
NASA-Flood Water
Archimedes Method to find pi
Discrete Math Link
Problem Solving
Pearson Link to Text resources
Extra Limit Problem Practice
TED Talk Pixar
Geometric Series /Seq 
Math Doodles- infinite series- fun!
Polar Grapher Geogebra
ALL Polar Graphs - a must!
Polar Grapher Shodor
Sample Final Project 1
Partial Fraction Deomp -Stewart source
Wolfram Alpha
Numberphile -Mandelbrot set
Chapter 1  Function Fundamentals

Chapter 2 Linear Functions

Chapter 4​​​​ Exponential and Logarithmic
Chapter 5 Trig  Functions Unit Circle
Chapter 6 ​Periodic Functions

Chapter 7 Trig Identities and Equations

Chapter 12 Introduction to Calculus ​​
Calc Chat - HW Help
Calc View - video help
Math Graphs for your text Precalc 10e
Course Description _ Syllabus
Getting to Know Your TI Nspire CX
Domain range of function refresher
Difference Quotient Calculator

​Exponential Logarithmic @ Math is Fun 
Compound Interest formula 
math apps or practice