Skimming Stones
The pastime of skimming stones has apparently been reduced to a mathematical formula by a French Physicist. Read about it at New Scientist.
The pastime of skimming stones has apparently been reduced to a mathematical formula by a French Physicist. Read about it at New Scientist.
Click on the icon to download/read the following documents:
Guidance on the three-part lesson
The Plenary - Last but not Least (what makes a successful plenary?)
Keep track of how your KS3 classes are progressing with this interactive markbook
Below is a question that I remember being set when I was at school; no one in my Year 10 class found a solution today - can anyone else?

Can you find any integer solutions, apart from a = b = 17?
We revised rounding and estimating using significant figures. Here are some useful websites:
An activity to check you understand this can be found here.
A tutorial from BBC Bitesize.
A ’significant figures’ calculator can be found here.
We have been using tree diagrams to solve probability questions. Some good examples can be found at:
BBC Revision - Probability
A more difficult example from Maths Help
An example from S-Cool!
One more example, all the way from the USA
Some websites to help you understand the concepts and practise the skills required for S1:
MathsNet loads of exciting interactive tutorials and test questions (explore the site to find help with other modules)
BBC AS Guru revision help (and a message board to share ideas and ask questions!)
Maths-Help a few questions and answers on Statistics
The Guardian’s special report on Renewable Energy is a good place to start - it contains plenty of news, definitions and links to relevant sites.
“I have no doubt that we will be successful in harnessing the sun’s energy If sunbeams were weapons of war, we would have had solar energy centuries ago.” - George Porter, 1973