The beginning of a new year is sometimes a good moment to look back and to look ahead.

To see earlier " Excel@Mathematics for All " click here.

The theme for the investigation and Excel technique for this month is: Triangular Arrangements of Connected Values.

The Interactive Screen feature is Functions on a Number Grid.

This month's Investigation: Number Pyramids

Also try out the Pascal Multiples downloadable file.

Its an ordinary Pascal's Triangle array but shows the multiples of any number up to 20.

Try to account for the patterns you observe.

This month's Interactive Task: Number Grid Functions

This month's Excel Technique: Triangular Arrays by Turning Off Zeros