Year 9 LAC Maths September
 

1.                Conversion graph - We use a conversion graph to change from one unit to another.
 

2.                Formula - A rule written out in algebra is known as a formula.
 

3.                a.m. - a.m. stands for ante meridian.  This means before noon.
 

4.                p.m. - p.m. stands for post meridian.  This means after noon.
 

 Year 9 LAC Maths October
 

1.                Square numbers - The square numbers are 1,4,9 …..  We get them from 1, 2, 3 ……  We can use the x² key on a calculator to work out the square numbers.
 

2.                Square root - On a calculator there is a √     key.  This is called a square root key.  It is the reverse of squaring a number.
 

3.                Power - 4³.  The power ‘3’ tells you how many fours are multiplied together.  We can use the x³ key on a calculator to work out powers.
 

4.                Pie chart - A pie-chart shows how something is divided up.  The angle of the sector represents the number of items.
 

Year 9 LAC Maths November 
 

1.                Number sequence - A number sequence is a pattern of numbers.
 

2.                Term - Each number in the sequence is called a term.
 

3.                Substitution - Changing a letter in algebra for a number.
 

4.                Power - a².  The power of ‘2’ tells you how many a’s are multiplied together.
 

Year 9 LAC Maths December
 

1.                Image - The image is how the object appears after reflection or rotation.
 

2.                Translation - A translation is a movement in a straight line.
 

3.                Rotation - A rotation is a movement round in a circle.
 

4.                Centre of rotation - When an object rotates it turns about a centre of rotation.
 

Year 9 LAC Maths January
 

1.                Enlargement - An enlargement changes the size of an object.  The change is the same in all directions.
 

2.                Scale factor - The scale factor tells us how many times bigger the enlargement is.
 

3.                Rotational symmetry - A shape has rotational symmetry if it fits on top of itself more than once as it makes a complete turn.
 

4.                Order of rotational symmetry - The number of times a shape fits on top of itself.  It must be 2 or more.
 

Year 9 LAC Maths February
 

1.                Negative numbers - Numbers with minus signs in front are called negative numbers.
 

2.                Positive numbers - Other numbers except zero are positive.  Positive numbers are sometimes written with a plus sign in front.
 

3.                Directed numbers - Directed numbers are numbers with signs in front of them.
 

4.                Less than < or greater than > - We often use the signs < and > with  numbers.  < means less than, and  > means greater than.
 

Year 9 LAC Maths March
 

1.                Event - An event is something that can happen in a probability question.
 

2.                Probability - The probability of an event is the number of ways that the event can happen divided by the total number of things that can happen.
 

3.                Cancelling fractions - When we write probabilities as fractions, we should cancel the fractions to their simplest form.
 

Year 9 LAC Maths April

1.                Point of intersection - The point where two lines cross is called a point of intersection.
 

2.                Equation - The rule of a line is called the equation of a line.
 

3.                Ratio - Ratio is a measure of the relative size of two things.
 

4.                Scale - The scale of a drawing gives the relative size of the actual length to the drawn length.
 

Year 9 LAC Maths May

1.                Area of a rectangle - Area of a rectangle = length x width.
 

2.                Area of a triangle - Area of a triangle = base x height ÷ 2.
 

3.                Area of a parallelogram - Area of a parallelogram = base x height.
 

4.                Area of a trapezium - Area of a trapezium = (sum of parallel sides) ÷ 2 x height.