Good for Algebra I going into the CCSS since we are inheriting sequences and series.
Here is a FREE (for now:) poster linking the parts of a parabola to the questions students will be asked when solving quadratic word problems...
Angry Birds! This is an Algebra 1 lesson on quadratic functions themed after Angry Birds. Your students will love it.
Graphing inequalities. Remember this stuff? Reminds me of my calculus class at UT in the RLM and CPE buildings. Ugh!
Collection of resources for teaching polynomials - from the Math Giraffe blog
Anchor chart for Algebra II EOC Review on Solving a Quadratic Equation ... made by Brandi Carey, Aubrey Wright, and Evan Payne (April 2013).
Real world application of systems of equations
Common Core 8 Math Practice Standards for High School - TpT$