This is one in a large series of short videos from NCETM showing how people use maths at work. See the others here.
This is one in a large series of short videos from NCETM showing how people use maths at work. See the others here.
This is one in a large series of short videos from NCETM showing how people use maths at work. See the others here.
When you have watched the video see if you can convert time into decimals and work out how much employees should be paid.
This is one in a large series of short videos from NCETM showing how people use maths at work. See the others here.
This is one in a large series of short videos showing how people use maths at work. See the others here.
Here is a video to help with GCSE revision. The questions come from the second half of a non calculator Foundation paper. These questions were also at the beginning of the Higher paper. They cover important topics you need to be confident with to be sure of getting a Grade C. I strongly recommend you attempt the paper yourself first and then watch the video to see if you got them right and to learn from your mistakes.
If you can factorise a quadratic that is the easiest way to solve it. Some quadratics don’t factorise, so then we can use the formula. This video from jayates shows how to do it. If you are studying GCSE Higher you are currently given the formula in the exam so you don’t have to learn it off by heart, but don’t forget to refer to the formula sheet at the front of your exam paper when you need it.
Maths is fun explains this well but don’t worry too much about the “imaginary numbers” at the end. If you are doing Higher you don’t need to know that yet.
Here is a worksheet that you can print off and practice solving quadratics with the formula.
Simultaneous equations are when you have 2 or more equations with two or more unknowns. You can solve them using algebra or by drawing a graph of the two equations and seeing where they cross.
This video shows you how to solve simultaneous equations using algebra.
This video shows how to solve simultaneous equations using a graph.
Now you try!
Study Maths (more examples and interactive worksheets)
Surds are numbers left in square root or cube root format. We leave them as surds because in decimal form they go on forever, so it uses up lots of ink to write them and accuracy is quickly lost. There are lots of tricks to simplify surds and these two videos from maths520 show them clearly. This topic is important for Higher GCSE students.
Have you got it? Try these questions on BBC Bitesize. then continue to these. Also try the jigsaw.
This video is quite long so you might want to watch it in two sittings, but it does explain clearly what higher GCSE students need to know about transformation of graphs. Thank you Ukmathsteacher!
Maths is fun has a good explanation of this with some nice interactive activities and questions. Bitesize activities are here.
Thanks to Ron Barrow for this helpful example of how to use probability tree diagrams. 158,411 views is impressive! You need to know this if you are taking the GCSE Higher paper.
This video by Luke Redding is also very clear and takes the topic a bit further because it includes experiments where the item is not replaced.
Maths is fun also explains this well and includes some interactive questions. GCSE Bitesize is another good site to test yourself on this.
This activity is about a wind turbine in Norfolk. Watch the video first, then try to answer the questions. You will need a calculator.
You can either do the activity on-line, or download and print the worksheet.
Watch the video on Income Inequality then see if you can answer the questions.