Scatter Graphs

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Scatter Graphs

Scatter Graphs and Correlation

Students learn how to describe relationships between two variables and illustrate them using scatter graphs. Sca...

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...

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 […]