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These activities involve the use of the spreadsheet to carry out mathematical investigations.

The activities are suitable for anyone in secondary mathematics education, particularly those in the age range 11 - 16+.

Each activity has two files which can be downloaded. The first file, in the form of a pdf,contains the instructions and solutions.

The second file is in two forms, choose either one, depending on your operating system and spreadsheet application program. The first type is a prepared MS Excel® spreadsheet and the second type is in CSV format. The instructions refer to either format. It can be given to a class to work through, although help should always be available for those who find following instructions difficult.

More activities will be added to the site on a regular basis as the site continues to develop.

Prime Number Investigation

There are many ways to see if a number is prime. One such way is the sieve of Eratosthenes.

Another way to see if a number is prime is to perform trial divisions......(more)

Pythagorean Triples

We are familiar with the set of following Pythagorean Triples: (3,4,5) (5,12,13) etc. How many more are there?

This investigation starts with odd first numbers of the triple, expands to even first numbers, then double evens.....(more)

Number Sequences

In mathematics, quite often students find it difficult to work out the next two terms in a given number sequence. Of course they have to spot the correct pattern, which sometimes is not easy.

Is there a simple way of working out the next two terms in a number sequence?.....(more)