Law of Cosines PDF (Free Printable) which includes the formula, detailed steps to solve oblique triangles, and 2 practice problems. Great handout for students and teachers in PreCalculus, Trig, or even Algebra 2. Grab your FREE Cheat Sheet Today!
Unit Circle Hand Trick - Amazing trick for evaluating trig functions without a calculator. It helps students memorize the unit circle quickly. Great technique for your high school math analysis or trig class. Check it out today!
Precalculus will be moving beyond their introduction to functions and function notation from Algebra II and into a in-depth development of transformations. We will be applying transformations (translations, reflections, dilations, etc.) to many of the parent functions included in the image above (we will save trigonometry for the Spring!). Understanding transformations is a crucial link between the algebraic form of a function and its graphical behavior. We will spend a considerable amount…
A list of reciprocal identities and quotient identities that make a great first lesson for when you teach trig identities. Come check out all the lessons I use to break down trig identities for my students.