APS Supply My Class Program Helps Teachers Bring Big Ideas to Life A few new classroom supplies can go a long way. They can turn a math lesson into a hands-on activity, help students see a concept click in real-time and give teachers more ways to bring learning to life. That is the idea behind Arizona Public Service’s (APS) Supply My Class program, which helps K-12 public school and public charter school teachers within the utility’s service territory purchase supplies that support student learning,