Probability means how likely it is that something will happen. For example getting two sixes when you roll a pair of dice (dice is the plural of 'die').
Relative frequency
How often something happens divided by all outcomes.Wednesday, 19 March 2014
Circles and Prisms
Circumference of a Circle:
Circumference means the perimeter of a circle
Circumference = 2 × π × Radius
Area = π r2
Prisms
A prism is an object that has the same area all along its length.
We can find the volume of a prism by multiplying the area of the base by the length.
Bearings and loci
Objectives
Bearings
Locus from a fixed point
Constructing a perpendicular bisector
(to find the locus that is equidistant from two points)
Locus from a line
Constructing the bisector of an angle
(to find the locus that is equidistant from two lines)
Bearings
Locus from a fixed point
A locus means a path. 'Loci' is the plural of locus. It shows us the path or region that a point can travel according to certain rules.
The locus of points that are equidistant from two points: Constructing a Perpendicular Bisector
You can find the method by clicking on the image below:
The locus of all points that are equidistant from two lines: Bisecting an angle
We use this method to find the locus of all points that are equidistant from two lines.
Some real world examples of loci
Watch a video of how loci apply in the real world.
Tuesday, 18 March 2014
Graphing and Solving Linear Equations
- The equation of a line
- Solving two simultaneous equations using a graph
- Trial and Improvement method to solve an equation
Linear Equations
Solving two simultaneous equations using a graph
Trial and Improvement method to solve an equation
Using this method we 'guess' the first value x and then try other values until we find one that works. Click the image below for an example:
Monday, 10 March 2014
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