I do this with my class every year and they love it! Angry Birds Parabola Project ://algebra2coach.com/transforming-parabolas-angry-birds-project/
Angry Birds! This is an Algebra 1 lesson on quadratic functions themed after Angry Birds. Your students will love it.
Mrs. Hester's Classroom : Desmos Piecewise Project
Algebra Projects for High School | eHow
21st Century Algebra Project Bundle -- Common Core Aligned!
Anchor chart for Algebra II EOC Review on Solving a Quadratic Equation ... made by Brandi Carey, Aubrey Wright, and Evan Payne (April 2013).
Defining Algebra Project This is a project idea used at the beginning of the year with Algebra 1 students. The goal of the project is to get them thinking about, researching and dabbling in what it means to be studying Algebra.
Real-world applications of linear equations and systems of equations when students examine the cost of college. A valuable project for Algebra 2 students.
eat play math: Laws of Sines Derivation and the Ambiguous Case
Speed Dating (I promise this is really about school)- great idea for working thru final exam reviews in class...