# Provide Alternatives for Numerical Concepts

## User Need

I need words rather than numbers and numerical concepts.

Provide alternatives for numbers and numerical concepts.

##### What to Do

Provide alternatives for numbers and numerical concepts.

## How it Helps

Not all people can understand numbers and numerical concepts.

For example, some people have dyscalculia, a learning disability specifically-related to mathematics. People with dyscalculia have significant problems with numbers and mathematical concepts, but often excel in other intellectual areas.

For example, a user with dyscalculia may have difficulty processing temperature data when presented only in a numeric format. However, if non-numeric alternatives are provided (cold, warm, hot etc.) then they are able to understand the content.

Numeracy issues can occur due to a range of disabilities, the most severe being the inability to read or understand numbers. Other people have challenges with any calculations such as relative sizes or times.

For example, a user may understand the concept of 90cms as a length but find it hard to cope with the fact that 0.9m and 900mm are the same length.

In another example, a train schedule has a list of relative times that the train leaves on the hour. The user cannot calculate when the next train leaves from their location.

## More Details

Where an understanding of mathematics is not a primary requirement for using this content use one of the following:

• Reinforce numbers with non-numerical concepts, e.g., very cold, cold, cool, mild, warm, hot, very hot.
• Once it is mature you can also use personalization semantics to add non-numerical concepts. See [[personalization-semantics-help-1.0]].

Note that other users may find math easier to understand than long text.

Where some math skills are essential for the content:

• Move towards digital math that can be extended (not numbers in images).
• Enable highlighting of sections as they are being discussed.
• Link sections of numbers to extra help that can be read together.
• Enable replacing math sections with words or summaries for users who prefer this.
##### Examples

Use:

1. Extra support for numerical content such as:
• sizes
• quantity
• distance
• time
• date
• temperature
• positive/negative
• calculations
• sequencing
• percentages.

For the above, there is a description or representation of what the number means as a concept.

Avoid:

1. Numerical content without extra support