ARC :: Additional Information

Additional Information

Guidelines for marking

The following guidelines for marking show one approach to assigning a value to a student’s work. Other approaches may be used that better suit the reporting process of the school. Categories, marks, grades, visual representations or individual comments/notations may all be useful.

Range	Students in this range:
High	provide examples of problems, with valid diagrams, that could be solved using trigonometric ratios use trigonometric ratios correctly to find the length of unknown sides and/or the size of unknown angles
Satisfactory	provide examples of problems, with valid diagrams, that could be solved using trigonometric ratios label the sides and an acute angle of a right-angled triangle correctly, and expresses at least one trigonometric ratio in terms of the sides
Progressing	draw one valid right-angled triangle in which trigonometric ratios could be used to find the length of unknown sides and/or the size of unknown angles.

Feedback

Students will receive:

possible prompt questions related to the assessment Activity to assist their engagement
written feedback on individual responses to indicate evidence of understanding of each of the trigonometric ratios and their use in finding sides and angles in right-angled triangles
specific advice about strategies to further consolidate knowledge, skills and understanding, and suggestions for completing related additional tasks
oral feedback (to the class and individuals) related to the overall understanding of the concepts and misconceptions about the mathematical ideas.

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