The student consistently uses correct mathematical notation, symbols, and terminology. Computer notation is present only in the picture of the code. Key terms/variables are defined and explained when first introduced, although they are defined on the cartesian plane. The main concepts are described in the introduction, and additional terms are defined in detail before using them. Multiple forms of mathematical representation are present but 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. The graphs, tables, and diagrams are labeled at the bottom.