"Answers to hard math questions" .. is just a random collection of videos for High School math questions. The whole idea is to stop the video at the very beginning, test yourself, and then work through the solution given in the rest of the video. Many of the questions are A*, A and B grade although I'd like to get a good level of challenge for all students. It's quite likely … [Read more...]
How to reflect shapes on a mirror line
How to reflect shapes on a mirror line or x axis, y axis, co-ordinate grid, graph or even cartesian plane - it's all pretty much the same. The biggest problem isn't really the reflection.. it's more making sure that you've correctly identified the 'mirror line.' This can cause a few problems and a little confusion. The easiest way is to actually plot a couple of points on the … [Read more...]
GCSE practice papers
Here's a range of GCSE practice papers by grade. View YouTube videos here for help. I'll add the answer papers soon, although I'm sure you're working through plenty of practice exam papers. Here's 6 tips to help you answer maths word problems and developing independent learning skills. You never know, you might be heading for one of 10 seriously brilliant maths careers! Grade … [Read more...]
Why and how to work out volume of a prism
Learning how to work out volume of a prism can be very important for all sorts of applications - mainly in manufacturing and transportation. A 'prism' is a shape with a constant cross section, such as a cardboard box. It basically means that if you cut the prism in half the shape will be the same in the middle: Try the Quick Test volumes of 3D shapes To work out the … [Read more...]
Why and how to calculate density
How to calculate density can be very important in design and construction.. Density is measured by how much something weighs for a fixed volume, usually a 1cm cube. It's a measurement that compares different materials of the same size. This is a level C GCSE question: "An 8cm solid hexagonal prism has a cross-section area of 15cm squared. The prism is made from wood … [Read more...]