The student consistently and correctly uses correct mathematical notation, symbols, and terminology. They also define and explain key terms/variables when first introduced, and describe the main concepts in the introduction. Multiple forms of mathematical representation are used only when appropriate, and all mathematical calculations are explained and any data presentation is described. The student uses a deductive method and logical proofs where appropriate, and labels all graphs, tables, and diagrams at the bottom. The degree of accuracy is stated for any rounded values, and results are rounded only at the end of the calculations thread.