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### Number and algebra

### Geometry and measure

### Probability and statistics

### Working mathematically

### For younger learners

### Advanced mathematics

# Board Block

## You may also like

### Let's Investigate Triangles

### Four Triangles Puzzle

Links to the University of Cambridge website
Links to the NRICH website Home page

Nurturing young mathematicians: teacher webinars

30 April (Primary), 1 May (Secondary)

30 April (Primary), 1 May (Secondary)

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Age 5 to 7

Challenge Level

- Problem
- Student Solutions
- Teachers' Resources

As thisĀ is a game, there is no solution in the same way that other challenges have solutions.

However if you work out a strategy for winning, or if you work out what might be important to think about when trying to win, it would be good to hear about it.

Vincent and Tara are making triangles with the class construction set. They have a pile of strips of different lengths. How many different triangles can they make?

Cut four triangles from a square as shown in the picture. How many different shapes can you make by fitting the four triangles back together?