Year 9 Mathematics Standard 

TERM 3, 2025

Financial A (continued)

Students will solve problems involving earning money. they will be able to use published tables to calculate tax payable and net earnings, apply the simple interest formula to solve problems algebraically and graphically, calculate the cost of buying on terms and examine different ways of spending money.

Trigonometry A

Students will be able to identify and define the trigonometric ratios for right-angled triangles and use trigonometric notation. They will be able to find approximations of trigonometric ratios for given angles, find the size of an angle given a trigonometric ratio using digital tools and select and use appropriate trigonometric ratios to find unknown side lengths in right-angled triangles. Students should also be able to select and use appropriate trigonometric ratios to find unknown angles in right-angled triangles in degrees and minutes, as well as solve problems in a variety of contexts using trigonometric ratios in right-angled triangles.

Linear Relationships A

Students will be able to find the midpoint and gradient of a straight-line interval and the distance between 2 points by graphical and geometrical methods. They will identify positive and negative gradients, recognise and graph linear relationships (including horizontal and vertical lines) with and without digital tools. They will be able to identify the x and y intercepts of a straight line and identify the equations of the x and y-axis and lines parallel to them. Students will finish by being able to determine whether a point lies on a line and recognise that parallel lines have the same gradient.