problem

Favourite

### A little light thinking

Here is a machine with four coloured lights. Can you make two lights switch on at once? Three lights? All four lights?

problem

Favourite

### Summing geometric progressions

Watch the video to see how to sum the sequence. Can you adapt the method to sum other sequences?

problem

### Difference Dynamics

Take three whole numbers. The differences between them give you
three new numbers. Find the differences between the new numbers and
keep repeating this. What happens?

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### Patterns and Sequences - Stage 4

Working on these Stage 4 problems will help you develop a better understanding of patterns and sequences.

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