Drawing Celtic Knots
Here is a chance to create some Celtic knots and explore the mathematics behind them.
Here is a chance to create some Celtic knots and explore the mathematics behind them.
Do you notice anything about the solutions when you add and/or subtract consecutive negative numbers?
In this problem, we're going to find sets of letter shapes that go together.
The planet of Vuvv has seven moons. Can you work out how long it is between each super-eclipse?
A group of children are using measuring cylinders but they lose the labels. Can you help relabel them?
Can you fit the tangram pieces into the outlines of the lobster, yacht and cyclist?
Can you fit the tangram pieces into the outlines of Mah Ling and Chi Wing?
Can you fit the tangram pieces into these outlines?
There are four children in a family, two girls, Kate and Sally, and two boys, Tom and Ben. How old are the children?
There are 78 prisoners in a square cell block of twelve cells. The clever prison warder arranged them so there were 25 along each wall of the prison block. How did he do it?