Inequalities

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Inequalities

Solving Inequations

The start of the lesson is used to review deriving inequalities from number lines.  The development phase builds...

Inequalities

Students learn how to represent inequalities on a number using the correct notation.  As learning progresses stu...

Plotting Linear Inequalities

Students learn how to plot and calculate linear inequalities on a Cartesian axes.  As learning progresses they a...

Quadratic Inequalities

In this mathematics lesson students learn how to solve quadratic inequalities by identifying the roots to sketch...

Inequalities with Two Variables

In this mathematics lesson students learn how to solve multiple inequalities and represent common solutions on a...

Mr Mathematics Blog

Comparing Datasets using the Mean and Range

In my experience, students, in general, find the concept of a mean straightforward to calculate and understand. However, the mean alone does not provide a complete picture of a set of data. To achieve this, a measure of spread is also required. The range is the simplest measure that can be used for this. Not […]

Solving Problems with Angles in Parallel Lines

Solving problems with angles in parallel lines is like solving a murder mystery.  One clue leads on to the next and the next until the murderer is found.  However, it doesn’t end there.  The detectives need to explain their reasoning in court using the relevant laws and procedures should the murderer plead not guilty.  If […]

Solving Two Step Equations using the Balance Method

An equation is when one expression, or term, is equal to another.  To solve an equation means to find the value of the variable (represented by a letter) that makes the two expressions equal.  There are two types of equations for secondary school mathematics, linear and none-linear.  In this blog I write about how I […]