The student consistently and correctly uses correct mathematical notation, symbols, and terminology. Key terms/variables are defined and explained when first introduced, and the main concepts are described in the introduction. Multiple forms of mathematical representation are present but used only if appropriate, and all mathematical calculations are explained and any data presentation is described. The student used a deductive method and set out logical proofs where appropriate, and the graphs, tables, and diagrams are labeled at the bottom. However, the degree of accuracy is not stated for any rounded values, and results are rounded multiple times.