**Year 9 - Key Objectives**

**Number**

· Make and justify estimates and approximations of
calculations

· add, subtract, multiply and divide fractions,

· Use proportional reasoning to solve a problem, choosing the correct numbers
to take as 100%, or as a whole

**Algebra**

· Construct and solve linear equations with
integer coefficients (with and without brackets, negative signs anywhere in the
equation, positive or negative solution), using an appropriate method

· given values for m and c, find the gradient of lines given by equations of
the form y = mx + c

· Generate terms of a sequence using term-to-term and position-to-term
definitions of the sequence, on paper and using ICT

· write an expression to describe the nth term of an arithmetic sequence

**Shape and Space**

· Know and use the formulae for the circumference
and area of a circle

· Solve problems using properties of angles, of parallel and intersecting
lines, and of triangles and other polygons

· know that the sum of probabilities of all mutually exclusive outcomes is 1
and use this when solving problems

· Use trigonometry in a right angled triangle

**Handling Data**

· know that the sum of probabilities of all
mutually exclusive outcomes is 1 and use this when solving problems

· Use cumulative frequency to calculate medians and
interquartile range

**Using and Applying**

· Solve substantial problems by breaking them into
simpler tasks, using a range of efficient techniques, methods and resources,
including ICT

· Present a concise, reasoned argument, using symbols, diagrams, graphs and
related explanatory text; give solutions to problems to an appropriate degree of
accuracy