# Year 9 Mathematics

Pupils in this year group will be taught the following topics:

Number:

- Estimate the powers and roots to any given positive number- to include work on surds
- Calculate with numbers in standard form and know how to adjust answers accurately
- Choose appropriate degrees of accuracy when rounding numbers and understand how these have limits in accuracy
- Use inequality notation to specify simple error intervals

Algebra:

- Understand and us the concepts of inequalities and identities
- Solve linear inequalities
- Multiplying out and double brackets and factorising expressions in the form ax
^{2}+ bx + c - Finding the difference of two squares
- Solve simultaneous and quadratic equations algebraically and using a graph
- Recognise, sketch and interpret graphs of simple quadratic functions

Geometry and measures:

- Geometry of triangle; Pythagoras theorem and trigonometry
- Shape constructions, including plans and elevations of 3D shapes
- Calculating arc lengths, angles and areas of sectors of circles

Probability:

- Listing outcomes using tree diagrams
- Understand how experimental probability tends towards theoretical probability with an increased sample size
- Calculate the probability of independent and dependent events
- Straight line graphs- finding the equations of lines through coordinates and finding the gradient

Statistics:

- Interpret and construct tables, charts and diagrams
- Scatter graphs, correlation and suing lines of best fit to make predictions

Pupils who meet age related expectations will be able to demonstrate the following (in relation to each topic):

- Fluency in their knowledge and understanding of the mathematical rules relating to each topic area
- Be able to reason mathematically by applying their knowledge to justifying answers and solving problems relating to each aspect covered.