Can-do Trigonometry - Xiang : Grade Commentary
Xiang has demonstrated sound knowledge and understanding of trigonometric ratios in relation to right-angled triangles. The diagrams are correct and the use of mathematical language is appropriate but the definitions of angles of elevation and depression are inaccurate. Some examples are not accompanied by solutions but formulas for the ratios are correctly stated and there is evidence of an adequate level of competence in performing the calculations. This work sample demonstrates characteristics of work typically produced by a student performing at grade C standard midway through Stage 5.
Grade C
The student has a sound knowledge and understanding of the main areas of content and has achieved an adequate level of competence in the processes and skills.
Full list of grade descriptions
Areas for Assessment
- Working mathematically
Knowledge, skills and understanding developed through inquiry, application of problem-solving strategies, communication, reasoning and reflection - Measurement
Knowledge, skills and understanding in identifying and quantifying attributes of shapes and objects and applying measurement strategies
