Year 9 Term 5

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Year 9 Term 5

Union and Intersection of Sets

Students learn how to calculate the union and intersection of sets using Venn diagrams.  As learning progresses ...

Problems with Simultaneous Equations

To introduce the idea of equivalent equations the starter involves calculating the common factor between multipl...

Solving Simultaneous Equations

At the start of the lesson students review deriving and solving a simple equation from a geometrical puzzle.  Th...

Solving Simultaneous Equations Graphically

The start of the lesson involves recognising the properties of linear functions both algebraically and graphical...

Vector Addition and Subtraction

Students learn how to perform vector addition and subtraction using column notation.  As learning progresses stu...

Interpreting Scatter Graphs

Students learn how to use the line of best fit to estimate missing data values.  To extend on this in the develo...

Plotting Scatter Graphs

Students learn how to plot scatter graphs to identify whether any correlation exists between to measurments.  As...

Correlation and Causation

Students use and plot scatter graphs to understand how correlation may not imply mean causation.  As learning pr...

Trial and Improvement

At the start of the lesson students set up an equation involving the area of rectangle which is solved using a m...

Equations with Fractions

At the start of the lesson students recap solving equations where the unknown appears on one side of the equals ...

Equations with the Unknown on Both Sides

At the start of the lesson students review solving a two step linear equation using the balance method.  The dev...

Solving Equations

The start of the lesson introduces the need to generate and solve an equation through a sense of wonder and magi...

Writing Probabilities

The start of the lesson is used to review systematically ordering possible permutations of combined events.  The...

Sample Space Diagrams

Students learn how to organise all the permutations of multiple events using tables and sample space diagrams.  ...

Probability Trees

Students are introduced to probability trees as a means to systematically calculate probabilities when two or mo...

Probability Scale

At the start of the lesson students match an event with the keyword which most closely matches the likelihood of...

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 […]