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Resources — Dyscalculia

Understanding Dyscalculia

Dyscalculia is a specific learning difficulty that affects the ability to acquire arithmetical skills. It is not related to intelligence and frequently co-occurs with dyslexia.

Definition

What is dyscalculia?

Dyscalculia is a specific learning difficulty that affects the ability to acquire arithmetical skills. Learners may have difficulty understanding simple number concepts, lack an intuitive grasp of numbers, and have problems learning number facts and procedures.
Even if they produce a correct answer or use a correct method, they may do so mechanically and without confidence. It is estimated to affect around 5–7% of the population.
Dyscalculia frequently co-occurs with dyslexia, ADHD, and dyspraxia. A separate diagnostic assessment is required to diagnose dyscalculia.

Key facts

Affects approximately 5–7% of the population
Not related to intelligence or effort
Separate from maths anxiety (though they can co- occur)
Frequently co-occurs with dyslexia and ADHD
Can be diagnosed at any age
Responds well to specialist teaching and support
Signs to look for

Common signs of dyscalculia

Difficulty counting backwards
Slow to perform calculations
Difficulty with fractions, percentages, and ratios
Difficulty managing money and giving change
Difficulty sequencing events or following multi-step instructions
Difficulty remembering basic number facts (e.g. times tables)
Weak mental arithmetic skills
Problems with telling the time on an analogue clock
Poor sense of direction and spatial awareness
Reliance on finger counting beyond early primary school
Support strategies

How to support dyscalculia

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Concrete Materials

Use physical objects, number lines, and manipulatives to make abstract concepts tangible. Cuisenaire rods and Numicon are particularly effective.

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Multi-sensory Approaches

Combine visual, auditory, and kinaesthetic learning approaches. Rhythm and movement can help with number facts and sequences.

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Assistive Technology

Calculators, number-to-word converters, and specialist maths software can reduce the cognitive load and allow learners to demonstrate their understanding.

Dyscalculia Conference 2023

Our 2023 Dyscalculia Conference featured Prof. Jonathan Glazzard, Dr. Kinga Morsanyi, and Rebecca Thompson. The recording is available from our online shop, providing practical knowledge for school settings and beyond.

Buy the Recording →
FAQ

Common Questions

Is dyscalculia the same as maths anxiety?
Can dyscalculia be diagnosed alongside dyslexia?
Does Positive Dyslexia assess for dyscalculia?