Linear equations with fractions are becoming more popular on High School maths papers ... and tend to be worth high marks. This post is really for the higher level questions that involve fractions, although here's a couple of additional posts that also might be of interest: 3 Minute Maths; Solving Linear Equations How to solve linear equations with video examples How … [Read more...]
Expand brackets and simplify – mid-level GCSE maths algebra
'Expand brackets and simplify' are very common GCSE algebra questions ... and tend to be worth a few marks in most exam papers. The principles are fairly similar and, once you've decided on a method, it's better to continue to practice that. Bracketed terms are used frequently in maths, to describe solving quadratic or cubic functions, and can be useful in working with the … [Read more...]
Solving inequalities using algebra – foundation to mid-level
Solving inequalities seems to be a favourite maths GCSE question ... although it's fairly useless in real life. Even though we do tend to think in inequalities (see top tips) .... I haven't really come across a great application. It's good practice for linear equation solving - and can look interesting on a whiteboard - but that's about it. Sorry. Unless you know any … [Read more...]
Completing the square – every GCSE question
Completing the square questions are becoming more popular with GCSE maths, as the technique can be useful if you're intending to study at a higher level. The main use is factorising and finding out the maximum and minimum values of a quadratic equation. Once you're familiar with the method, completing the square becomes quite straightforward. This video is a reminder of … [Read more...]
Parallel or perpendicular lines on a graph – mid-level questions
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...]