A series of investigations.

Get out your pen and paper and see if you can solve these problems.

No answers are provided for some of these investigations as they are often open − ended with no definite answers.

Have fun!


Investigation 1

The Gold Disks of Brahma

An investigation into patterns.

Investigation 2

Counting in Mãori

Learn to count to 1000!

Investigation 3


A problem with fast-breeding rabbits!

Investigation 4
Some trigonometry and geometrical thinking required!
Investigation 5
Lots of fractions, distance, speed and time.
Investigation 6
Number operations
Investigation 7
Geometry and patterns
Investigation 8
Number work and patterns
Investigation 9
Percentages and formulae
Investigation 10
Patterns and functions
Investigation 11
Combinations and patterns