[ PDF File - No Prep ] Make sense of problems and persevere in solving them - Make sense of problems and persevere in solving them. Mathematically proficient students start by explaining to themselves the meaning of a problem and looking for entry points to its solution. Reason abstractly and quantitatively - Reason abstractly and quantitatively. Mathematically proficient students make sense of quantities and their relationships in problem situations. Construct viable arguments and critique the