nrich maths
Updated: 
2016
1 Comment
Resource
  • Math
  • K-2, 3-5, MS, HS
Common Core
<p>Libby Jared helped to set up NRICH and this is one of her favourite problems. It’s a problem suitable for a wide age range and best tackled...
nrich maths
Updated: 
2016
1 Comment
Resource
  • Math
  • K-2, 3-5
Use the blue spot to help you move the yellow spot from one star to the other. How are the trails of the blue and yellow spots related?
nrich maths
Updated: 
2016
1 Comment
Resource
Common Core
<p>Using only the red and white rods, how many different ways are there to make up the other colors of rod?</p> Aligned to Common Core...
nrich maths
Updated: 
2016
1 Comment
Resource
  • Math
  • K-2, 3-5
Use the interactivity to investigate what kinds of triangles can be drawn on peg boards with different numbers of pegs.
nrich maths
Updated: 
2016
1 Comment
Resource
  • Math
  • K-2, 3-5
Can you find all the different triangles on these peg boards, and find their angles?
nrich maths
Updated: 
2016
1 Comment
Resource
  • Math
  • K-2, 3-5
Choose the size of your pegboard and the shapes you can make. Can you work out the strategies needed to block your opponent?
nrich maths
Updated: 
2016
1 Comment
Resource
  • Math
  • K-2, 3-5
Place the numbers from 1 to 9 in the squares below so that the difference between joined squares is odd. How many different ways can you do this?
nrich maths
Updated: 
2016
1 Comment
Resource
  • Math
  • K-2, 3-5
In this 100 square, look at the green square which contains the numbers 2, 3, 12 and 13. What is the sum of the numbers that are diagonally opposite...
nrich maths
Updated: 
2016
1 Comment
Resource
  • Math
  • K-2, 3-5, MS, HS
Common Core
<p>In this maze of hexagons, you start in the center at 0. The next hexagon must be a multiple of 2 and the next a multiple of 5. What are the...
nrich maths
Updated: 
2016
1 Comment
Resource
  • Math
  • K-2, 3-5, MS
Common Core
<p>Try to stop your opponent from being able to split the piles of counters into unequal numbers. Can you find a strategy?</p>Aligned to...