Download a copy of the questions here: QT - Inequalities on Graphs Download a copy of the written answers: QT - Inequalities on Graphs ANSWERS Inequalities questions seem to be asked either as finding a region on a graph, solving or showing on a numberline. They're all around level 6 in GCSE mathematics and it's worthwhile practising the types of questions … [Read more...]
Box plots – mid-level GCSE mathematics
Here’s a few videos on how to draw box plots, sometimes called box and whisker diagrams. They are fairly popular on GCSE mathematics although occasionally you'll be asked to compare them with cumulative frequency diagrams. Both CF and box plots give the same time of information - median, upper / lower quartiles and range. questions where Top Tips! ● Box plots are just … [Read more...]
Cumulative frequency diagrams – GCSE mathematics mid-level
Cumulative frequency diagrams are quite popular on GCSE mathematics papers. They can be fairly straightforward, although it'll be useful to also practice box plots. The information is fairly similar ... you can find the median, quartiles and ranges in both, with a typical question comparing information from both sources. Q4 on these past paper questions might be useful to … [Read more...]
How to work with scale factors – mathematically similar shapes
Here's a few videos on how to work with scale factors, that I hope might be useful. They are becoming a little more popular on GCSE mathematics as you need to demonstrate a clear, logical method. However the questions can a be a little tricky: You need to remember that the scale factor is usually calculated as a linear measurement Once you have calculated the scale factor … [Read more...]
Enlargement by a negative scale factor
GCSE mathematics enlargement by a negative scale factor questions appear on many exam papers and you can download the questions here. The main things to remember when working with these types of questions are: Always draw the 'lines of enlargement' as accurately as possible - they really help to show where the … [Read more...]