This little gem - a KWA Chart in French - is something I found in my files. It's called a "Tableau SVA" in French. I made this simple Graphic Organizer when I was teaching Core French in a new school with few resources, before I started reviewing adjectives as well as teaching some rules for irregular adjective agreement in French. In teams, I had students discuss and record what they already knew. 

I found that I had to be MUCH more specific in my examples with this particular group than I had originally thought, so if you try it out, be sure to scaffold for your students - do a few examples as a class before getting into groups.
Check out my facebook page where I tend to share freebies, as well as interesting articles related to French language instruction, cool videos and more!