# Identifying the scaling factor as a single multiplier

The image of line segments helps pupils to see how to combine two operators into a single multiplier as a scaling factor from one number to another. Use tried and tested classroom resources to develop and use this image:- Line segments – Teacher notes and resources

**What do the resources include?**

The resources are available as a zip file line segments.

The resources draw on the image of graduated line segments to support establishing a single multiplier (scaling factor) between any two numbers and identifying the inverse multiplier. The resources available are:

- Teacher notes providing prompts to develop pupils’ understanding of
- scaling using a single multiplier supported by a visual image
- the use of successive scalings and their inverses
- Resources sheets with line segments examples and blank pairs of line segments.

**How will these resources help pupils?**

Develop pupils’ thinking about multipliers between two numbers by using the line segments image to show the single multiplier. As well as giving a context to highlight inverse multipliers, this will also clarify what constitutes the ‘original’ and hence the scaling operation required.

Example of line segments image: