Step one of PBIS is to establish a PBIS matrix. Sometimes, schools establish values for their PBIS matrix without considering what is essential to be a successful learner and a good human being. Instead, I’ve seen teams select values just because they fit an acronym that matches their school mascot. I love a branded PBIS matrix. My favorites have school colors, logos, and mascots all over them! Not my favorite—acronyms. Here are two reasons to avoid acronyms when creating a PBIS Matrix: