Math = Love: Free Printable Math-y Welcome Banner
Parent Functions, with graphs and tables under each tab.
SparkNotes: Precalculus: Trigonometric Functions: Trigonometric Functions
Classifying Conics Interactive Notebook Page
What is a Radian? Twizzler Activity for Pre-Cal/Trig
Sine.... AWESOME Visual Aid!!! LOVE IT!
Precalculus Equations with Real World Objects
Precalculus Reference Sheet More
Making math fun - I'll more than likely need this for my Calculus class. >.
Trigonometry Functions Chart - Great reference for Precalculus Students and Teachers. It includes all the major functions of sin, cos, and tan. It even includes the reciprocal functions of csc, sec, and cot.