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ADHD or dyscalculia

A child who is struggling may have ADHD, dyscalculia, or both. These disorders can look alike at school, but they do not affect the same functions. Here is how to tell them apart. Distinguishing between these disorders makes it possible to offer the right support at the right time.

ADHD

ADHD affects the regulation of attention, and sometimes restlessness and impulsivity. It affects all areas of life, at home as well as at school. Its manifestations vary according to the situation, tiredness and interest in the task.

This topic is covered in more detail on our page What is ADHD.

Dyscalculia

Dyscalculia is a disorder of mathematical learning: understanding numbers and quantities, memorising times tables, calculation. This disorder is lasting and is not explained by a lack of effort or intelligence.

You will find more details in the article ADHD and dys disorders.

Signs that look alike

In both cases, the child may make calculation errors, forget steps and get poor results in mathematics. These similarities explain why the two disorders are sometimes confused.

Our article Signs of ADHD in children complements this advice.

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How to tell them apart

In children with ADHD, errors are mainly linked to inattention: the child knows the method but makes mistakes along the way. In a child with dyscalculia, it is the sense of number and calculation itself that is the problem. Observing the child in calm situations and in stressful situations helps to guide the assessment.

Only assessments can settle the matter.

To find out more, see How to tell whether my child has ADHD.

Diagnosis

Dyscalculia is assessed by a specific speech and language therapy assessment. ADHD is assessed by a trained doctor. The assessments complement each other and must be read together by the professionals.

The article Who makes the ADHD diagnosis looks at this question in detail.

When both are present

Neurodevelopmental disorders frequently occur together. Care then combines speech and language therapy rehabilitation with support for ADHD. Good coordination between the professionals who follow the child is therefore essential.

This point is explained step by step in After the ADHD diagnosis: the steps.

Reasonable adjustments

School adjustments must take both disorders into account, so that the pupil can show their true abilities. These adjustments can be formalised in a PAP or a PPS.

To go further, read our article School adjustments for ADHD.

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Frequently asked questions

What is the difference between ADHD and dyscalculia ?

ADHD affects attention, dyscalculia affects number and calculation. These are two different disorders.

Can you have both ?

Yes, these disorders are often associated. They are often associated.

How to tell the difference ?

Through assessments carried out by the professionals concerned. Assessments make it possible to settle the matter.

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