# year 9 maths summer revision list

maths for nlcs year 9 for maths.

- Created by: poppy kettle
- Created on: 19-05-09 17:35

First 244 words of the document:

Year 9 summer revision list

Probability

Draw and use tree diagrams.

Conditional probability (picking two balls out of a bag, one after the other, without

replacement).

Apply probability to simple problems.

Algebra

Multiply out brackets.

Factorise linear and quadratic expressions.

Change the subject of a formula.

Similarity

Understand and use geometrical properties to find a missing length of similar shapes.

Trigonometry

Understand and use sine, cosine and tangent of acute angles to determine lengths and

angles of rightangled triangles.

Apply trigonometrical methods to solve problems in two dimensions (including

bearings).

Understand and use angles of elevation and depression.

Decimals

Convert recurring decimals into fractions. (Such as 1/3 0.333333...)

Simultaneous equations

Know how to form and solve simultaneous equations algebraically.

Solve simultaneous equations graphically (straight lines only)

Circle properties and geometric reasoning

Use circle theorems to find missing angles (must have reasoning/explanations)

Transformations

Identify and give complete descriptions of transformations.

Be able to perform transformations on an object.

Statistics

Construct frequency/grouped frequency tables and use them to calculate the

mean/median and mode.

Construct a cumulative frequency diagram from tabulated data and use it to estimate the

median, quartiles and interquartile range.

Understand the concept of a measure of spread using range and interquartile range.

Bar charts and frequency polygons.

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