The student consistently uses correct mathematical notation, symbols, and terminology. Key terms/variables are defined and explained when first introduced. The main concepts are described in the introduction and additional terms are defined in appropriate places. Multiple forms of mathematical representation are used only if appropriate. Results are rounded only at the end of the calculations thread. The student used a deductive method and set out logical proofs where appropriate. Graphs, tables, and diagrams are labeled at the bottom. However, the student needs to improve the explanations of mathematical calculations and data presentation, and state the degree of accuracy for any rounded values.