Prev 1 of 1 Next Trial and Improvement Maths GCSE revision lesson (Maths - School) How to use Trial and Improvement This video explains how properly apply and use trial and improvement required for GCSE Maths. Watch the video, take notes, then go to our website for some practice... Please visit https://maths-school.co.uk for more revision Subscribe to our channel for more revision content coming soon - click here: https://bit.ly/2Y3ggGh Prev 1 of 1 Next Post navigation Function Machines Solve equations that include brackets