The student demonstrates a consistent and correct use of mathematical notation, symbols, and terminology. They effectively utilize multiple forms of mathematical representation, such as formulae, diagrams, tables, charts, graphs, and models, when appropriate. The student also explains their mathematical calculations and accurately states the degree of accuracy for rounded values. Additionally, they employ deductive reasoning and logical proofs where necessary. However, improvements can be made in defining and explaining key terms/variables, describing main concepts in the introduction, and labeling graphs, tables, and diagrams at the bottom.