# Activity H: Working with very large or very small values

*For general information about the activities, and an overview of those currently available**, see the Teacher discussion activities page.*

### The activity

How do you chose appropriate units for values? When is it useful to use standard form (scientific notation)? Are there simple rules to apply?

Teacher Activity H: Working with very large or very small values

Further information about the issues raised by this activity can be found in the guidance booklet as described below.

### What is in the guidance?

The guidance booklet is published on the ASE website and can be directly downloaded from here:

The Language of Mathematics in Science: A Guide for Teachers

of 11-16 Science

Discussion of the key ideas that are relevant to this activity can be found in the guidance booklet on the following pages:

- Section 2.6 Dealing with very large and very small values (pp 20-21)