Speedy Summations
Watch the video to see how to add together an arithmetic sequence of numbers efficiently.
Watch the video to see how to add together an arithmetic sequence of numbers efficiently.
Investigate some of the issues raised by Geiger and Marsden's famous scattering experiment in which they fired alpha particles at a sheet of gold.
Use the interactivity to find all the different right-angled triangles you can make by just moving one corner of the starting triangle.
Let's suppose that you are going to have a magazine which has 16 pages of A5 size. Can you find some different ways to make these pages? Investigate the pattern for each if you number the pages.
This task requires learners to explain and help others, asking and answering questions.
What do you notice about the sum of two identical triangular numbers?
Can you find out what is special about the dimensions of rectangles you can make with squares, sticks and units?
Can you decide whether two lines are perpendicular or not? Can you do this without drawing them?
Andy wants to cycle from Land's End to John o'Groats. Will he be able to eat enough to keep him going?
Can you use the clues to complete these 5 by 5 Mathematical Sudokus?