Filter by: Content type: ALL Problems Articles Games Stage: All Stage 1&2 Stage 2&3 Stage 3&4 Stage 4&5 Challenge level:
Can you fit the tangram pieces into the outline of this sports car?
What is the greatest number of squares you can make by overlapping three squares?
Can you fit the tangram pieces into the outline of Wai Ping, Wah Ming and Chi Wing?
Paint a stripe on a cardboard roll. Can you predict what will happen when it is rolled across a sheet of paper?
This was a problem for our birthday website. Can you use four of these pieces to form a square? How about making a square with all five pieces?
This practical problem challenges you to make quadrilaterals with a loop of string. You'll need some friends to help!
Can you fit the tangram pieces into the outline of this junk?
Can you fit the tangram pieces into the outlines of the watering can and man in a boat?
Can you fit the tangram pieces into the outline of these convex shapes?
Can you cut a regular hexagon into two pieces to make a parallelogram? Try cutting it into three pieces to make a rhombus!
Can you cut up a square in the way shown and make the pieces into a triangle?
Can you make the birds from the egg tangram?
Here is a version of the game 'Happy Families' for you to make and play.
Can you fit the tangram pieces into the outline of Mai Ling?
NRICH December 2006 advent calendar - a new tangram for each day in the run-up to Christmas.
Here's a simple way to make a Tangram without any measuring or ruling lines.
Are all the possible combinations of two shapes included in this set of 27 cards? How do you know?
Can you fit the tangram pieces into the outline of the rocket?
Here is a solitaire type environment for you to experiment with. Which targets can you reach?
This practical problem challenges you to create shapes and patterns with two different types of triangle. You could even try overlapping them.
Can you fit the tangram pieces into the outline of Little Ming?
Can you fit the tangram pieces into the outline of this plaque design?
What do these two triangles have in common? How are they related?
Can you fit the tangram pieces into the outlines of these people?
Can you fit the tangram pieces into the outline of this brazier for roasting chestnuts?
Can you fit the tangram pieces into the outlines of these clocks?
Can you fit the tangram pieces into the outline of Granma T?
Can you fit the tangram pieces into the outline of this goat and giraffe?
Can you fit the tangram pieces into the outline of Little Fung at the table?
Have a look at what happens when you pull a reef knot and a granny knot tight. Which do you think is best for securing things together? Why?
Can you fit the tangram pieces into the outline of this telephone?
What shapes can you make by folding an A4 piece of paper?
Can you fit the tangram pieces into the outline of Little Ming playing the board game?
If these balls are put on a line with each ball touching the one in front and the one behind, which arrangement makes the shortest line of balls?
Can you fit the tangram pieces into the outlines of the lobster, yacht and cyclist?
Can you fit the tangram pieces into the outline of the child walking home from school?
Can you fit the tangram pieces into the outlines of the workmen?
Can you fit the tangram pieces into the outline of Little Ming and Little Fung dancing?
Can you fit the tangram pieces into the outline of these rabbits?
Can you fit the tangram pieces into the outline of the telescope and microscope?
Can you fit the tangram pieces into the outlines of the candle and sundial?
Our 2008 Advent Calendar has a 'Making Maths' activity for every day in the run-up to Christmas.
Can you fit the tangram pieces into the outlines of the chairs?
Can you fit the tangram pieces into the outlines of Mai Ling and Chi Wing?
Can you fit the tangram pieces into the outline of this shape. How would you describe it?
Follow the diagrams to make this patchwork piece, based on an octagon in a square.
Using different numbers of sticks, how many different triangles are you able to make? Can you make any rules about the numbers of sticks that make the most triangles?
What happens to the area of a square if you double the length of the sides? Try the same thing with rectangles, diamonds and other shapes. How do the four smaller ones fit into the larger one?
Kaia is sure that her father has worn a particular tie twice a week in at least five of the last ten weeks, but her father disagrees. Who do you think is right?