The Standards for Mathematical Practical (SMP) clarify what mathematically proficient students need to do. Our Problem Analysis Graphic Organizer (PAGO) helps students make sense of problems and persevere in solving them (SMP1), construct viable arguments and critique the reasoning of others (SMP3), and attend to precision (SMP6). Marzano's research advocates the use of graphic organizers to help students structure their thinking, and PAGO will help students do just that. Additionally, the tool