Slideshow from D.C.: Protest signs at the Save Our Schools rally

What would a protest be without a poster?

Hundreds of signs on display at the Save Our Schools March in Washington, D.C. on Saturday reflected the anger, passion and creativity of teachers who attended.

The posters had a wide range of targets, including Education Secretary Arne Duncan, charter schools, high-stakes testing, Republicans, and corporate influence in public education. Here’s a small selection of some of the best.