Resource
  • Math
  • K-2, 3-5
If I use 12 green tiles to represent my lawn, how many different ways could I arrange them? How many border tiles would I need each time?
Resource
  • Math
  • K-2, 3-5
Follow the journey taken by this bird and let us know for how long and in what direction it must fly to return to its starting point.
Resource
  • Math
  • K-2, 3-5
Here you see the front and back views of a dodecahedron. Each vertex has been numbered so that the numbers around each pentagonal face add up to 65...
nrich maths
Updated: 
2016
1 Comment
Resource
  • Math
  • K-2, 3-5
On a digital clock showing 24 hour time, over a whole day, how many times does a 5 appear? Is it the same number for a 12 hour clock over a whole day?
Resource
  • Math
  • K-2, 3-5
You cannot choose a selection of ice cream flavors that includes totally what someone has already chosen. Have a go and find all the different ways...
Resource
  • Math
  • K-2, 3-5
On the planet Vuv there are two sorts of creatures. The Zios have 3 legs and the Zepts have 7 legs. The great planetary explorer Nico counted 52 legs...
nrich maths
Updated: 
2016
1 Comment
Resource
  • Math
  • 3-5, MS
Common Core
Have a good look at these images. Can you describe what is happening? There are plenty more images like this on NRICH's Exploring Squares CD. Aligned...
nrich maths
Updated: 
2016
1 Comment
Resource
  • Math
  • K-2, 3-5
Find out why Jenny Murray's matrices are magic and what they have in common with NRICH's birthday celebrations. Now, can you work out how they were...
nrich maths
Updated: 
2016
1 Comment
Resource
  • Math
  • K-2, 3-5, MS
Common Core
<p>An investigation involving adding and subtracting sets of consecutive numbers. Lots to find out, lots to explore.</p><p>Other...
nrich maths
Updated: 
2016
1 Comment
Resource
  • Math
  • K-2, 3-5
Find out what a "fault-free" rectangle is and try to make some of your own.