Perpendicular lines on a graph ... are one of those questions that come up fairly infrequently, although it can be an easy few marks if you remember how to plot them. Parallel lines tend to be more popular so I've included both types of questions in the videos below. Top Tips! ● Draw accurately and use a table to work out the points you need ● Parallel lines have the same … [Read more...]

 Surds ... are becoming more popular with GCSE maths questions although, rather than calculating, you'll be expected to leave the answer in a 'surd form.' This usually means leaving as a square root, which cannot be reduced to a whole number. They are much more accurate than trying to calculate with decimals, although it's quite difficult to give precise answers to the … [Read more...]

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...]

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 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...]