Dyscalculia vs Number Dyslexia: Signs and Strategies

Dyscalculia vs Number Dyslexia: Signs, Tests and Classroom Strategies explains the difference between dyscalculia and the informal label 'number dyslexia'. Dyscalculia is a specific learning difficulty that affects number sense, arithmetic and maths reasoning. It is not just 'dyslexia in maths'. So, teachers should not use it as a broad label for every child who struggles with sums.

Research links dyscalculia to ongoing problems with processing numbers, recalling number facts and understanding place value (Butterworth, 2010; Geary, 2004).

​

​

​

​

For a Year 4 teacher, the distinction matters when a fluent reader still counts on fingers for 7 + 5, cannot place 48 near 50 on a number line, or panics when asked to estimate. Those behaviours point towards diagnostic teaching, careful assessment and concrete classroom support rather than repeated worksheets on the same procedure.

‍

Dyscalculia Definition

Dyscalculia is a specific learning difficulty. It affects how a learner understands and works with numbers, quantities and magnitudes. Current UK guidance estimates that about 6% of people have dyscalculia, while broader maths learning difficulties affect many more (British Dyslexia Association, 2025). In class, this might look like a Year 4 learner counting every dot on a die, misjudging whether 47 is nearer 40 or 50, or losing track of place value even after repeated teaching.

Older online figures often put dyscalculia near 1%, but this is too low for a classroom guide. Current UK guidance estimates that around 6% of people have dyscalculia, and about 25% have maths learning difficulties for wider reasons (British Dyslexia Association, 2025). DSM-5-TR and ICD-11 describe dyscalculia as a specific learning disorder or developmental learning disorder with impairment in mathematics, not as dyslexia with numbers (American Psychiatric Association, 2022; World Health Organization, 2022). For a SENDCo, triage means sorting the small group who need specialist assessment from learners whose maths profile reflects working memory, anxiety, absence, language, weaker early number experience, or gaps in teaching.

Dyscalculia is not just dyslexia with numbers. It is a specific learning difficulty that affects a child's number sense and maths logic. This condition can easily stay hidden in the classroom. Learners often use memory tricks, counting on fingers, or avoidance to get through their maths lessons.

When maths difficulties are missed, learners can quickly fall behind in lessons. They may also develop high anxiety around calculating answers. For example, a Year 4 learner can read fluently but still struggle to estimate if 47 is nearer to 50 or 40. This child needs diagnostic teaching, rather than more worksheets on the exact same method.

Dyscalculia affects maths and can also affect other areas of learning. Dowker (2004) found that it affects number sense and calculation. Butterworth (2010) noted that learners may struggle with maths language. When teachers understand dyscalculia, they can give learners better support.

Developmental dyscalculia changes how a child's brain handles numbers. It makes it hard for them to grasp basic number concepts (Butterworth, 2010). These learners often find times tables and dividing very tough (Geary, 2004).

They also struggle with simple sums and the language of maths (Dowker, 2005). Teachers usually spot these signs when children are quite young (Shalev, 2004).

We do not yet know the exact cause of dyscalculia. However, research suggests that it can run in families. It is vital for learners to get a proper diagnosis from a medical or educational professional. This allows teachers to find the right individualised strategies to support them in class.

Butterworth (2010) suggests both genes and the environment cause dyscalculia. Some children are born with a higher risk of this condition. Early life experiences may play a role in how it develops, alongside genetic and cognitive factors (Geary, 2011).

‍

‍

Signs of Dyscalculia

Research shows dyscalculia affects learners' number skills. They find number words hard, struggle with calculations, and miss patterns (Butterworth, 2005). Use it as a starting point for professional discussion: identify the learner's current need, record evidence from more than one lesson, and agree the next classroom adjustment with the SENCO or family.

Learners may struggle to link numbers to objects (Geary, 1993). Poor number sense and trouble estimating are also common (Dehaene, 1997). They find maths symbols confusing (Dowker, 2004).

Dyscalculia affects the way a person thinks and processes information, which means that some aspects of mathematics can seem difficult. This could include:

• Difficulty understanding what number words mean.
• Misunderstanding how addition works.
• Not being able to recognise patterns such as multiplication tables.
• Having difficulty remembering things like times tables. 
• Understanding that one-to-one correspondence is not always possible between numerical symbols and their corresponding objects or actions. For example, "two" may be used as an adjective for describing something good but also as a noun meaning "twice".
• Difficulty understanding how many items there are in a group of things.
• Difficulty counting by ones, tens, hundreds, etc. 

Children who have been diagnosed with dyscalculia may be able to count up to 10 or 12 items but cannot do so accurately. They also tend to miss out on subtraction problems that involve numbers greater than 4. For example, if you ask them what comes after 7 they can say 8 instead of 9 because it sounds like an easier problem for them. This type of error is called "subtractive confusion". 

Kosc (1974) named dyscalculia and saw it as an arithmetic difficulty. He defined it as learners' inability to use number ideas. The term is now common for maths difficulties that affect calculation (Kosc, 1974).

"Number dyslexia" is sometimes used online to describe maths difficulty, but it is not a formal diagnostic term. In school records, the label can waste limited SEND time and budget. It may push support towards literacy-style adjustments, such as overlays, extra reading drills or spelling-focused memory work. Yet the learner may actually need explicit work on quantity, magnitude, place value and calculation fluency.

Use the phrase only as a parent search term, then translate it into precise evidence. Ask whether the learner can subitise small sets, compare 38 and 83, place 47 on a number line, explain what "ten more" means and keep track of a two-step calculation. These observations point to numeracy support, not a dyslexia-style intervention plan.

Dyscalculia has no single simple cause. Older accounts often focused on a faulty number module or unusual activity around the intraparietal sulcus, but current models are more careful. Neurocognitive reviews describe a multi-component profile involving symbolic number processing, approximate quantity comparison, visuospatial working memory, attention and executive control (Fias et al., 2013; Kaufmann et al., 2013; Mishra & Khan, 2023). In class, this means two learners with the same label can still need different support.

However, we do know that dyscalculia often runs in families. This suggests that genes may play a part. Research also shows that children may have a higher risk if dyscalculia is already in their family.

Environmental influences do not usually create dyscalculia by themselves. However, they can create dyscalculia-like profiles. For the COVID cohort now moving through KS2 and KS3, lost practice with counting objects, board games, number talk and concrete manipulatives can look like weak number sense.

‍

‍

EEF evidence on pandemic learning loss and recovery shows that gaps in primary attainment have been slow to close. So, schools should check opportunity to learn before assuming a lifelong learning difficulty (Education Endowment Foundation, 2022).

Prevalence estimates vary because studies use different cut-offs, tests and age groups. Current UK guidance is clearer than the older 1% claim: around 6% of people are thought to have dyscalculia (British Dyslexia Association, 2025). Maths learning difficulties, more broadly, affect about one in four people (British Dyslexia Association, 2025).

Dyscalculia is also often missed because teachers, clinicians and medical trainees get limited training in mathematical learning difficulties. As a result, many learners are described as "weak at maths" instead of being assessed for a lasting number sense difficulty.

What treatments exist? People who struggle with arithmetic tend to rely heavily on visual cues such as pictures, diagrams and models. This helps them remember what they've learned. But not everyone responds well to visuals.

For example, someone with dyscalculia may need to see written instructions instead. Other strategies include using symbols to show quantities, writing calculations by hand, or asking friends or family members to help with simple tasks like adding money into a bank account.

‍

‍

Dyscalculia in Adults: Lifelong Impact

Dyscalculia continues to create challenges for adults in everyday life. They often struggle with managing money and telling the time (Butterworth, 2010). For example, estimating budgets and measuring items can be very difficult (Emerson & Babtie, 2006). Workplace maths can also be hard, which can affect a person's independence (Parsons & Bynner, 2005).

Adults with dyscalculia often struggle with daily tasks such as managing finances, reading clocks, or calculating tips at restaurants. Many adults do not realise they have this condition until later in life because they have developed coping mechanisms to hide their difficulties with numbers. Without proper support, these challenges can affect career choices and daily independence.

Dyscalculia is a specific learning difficulty, but it does not often appear on its own. A learner with dyscalculia may also have dyslexia, DCD or dyspraxia, ADHD, dysgraphia, or language related difficulties. The British Dyslexia Association (2025) reports that 60% of people with dyslexia have maths difficulties, but these are not always dyscalculia.

Kroesbergen et al. (2023) also found that comorbid difficulties are common in mathematical learning disability research. They are not rare exceptions. In class, a spelling error, attention lapse or copied digit reversal may be part of the same support picture. It may not be a separate behaviour issue.

‍

‍

Dyslexia and Maths Skills

Dyscalculia is sometimes called 'number dyslexia', but this nickname can mislead parents, teachers and SEND panels. Dyscalculia affects number processing and basic calculation (Butterworth, 2010). Dyslexia-related maths difficulty more often comes from language, sequencing, working memory or the need to retrieve facts quickly. This difference matters for provision: coloured overlays, spelling-style memory drills or reading accommodations may help a dyslexic learner access word problems, but they will not teach a dyscalculic learner what 47, 40 and 50 mean as quantities.

Current UK guidance estimates that about 6% of people have dyscalculia, not 1% (British Dyslexia Association, 2025). Experts such as Geary (2004) continue to study how these profiles differ.

This section answers a very common question from parents and teachers about whether dyslexia can affect a child's ability to use numbers. In fact, many people search for this specific topic online every month.

‍

‍

Number-Only Dyslexia as a Misleading Label

Some people call dyscalculia 'number dyslexia', but this label can hide two different issues in class. Dyscalculia is a long-term difficulty with number, quantity and estimation. Maths anxiety is fear or worry about maths, often linked to past failure, pressure or avoidance (British Dyslexia Association, 2025; Barroso et al., 2021). A learner may have both, so look across lessons: can they estimate, compare quantities and explain place value when calm, or does panic mainly appear during timed tasks and public questioning?

This directly addresses the common search query "can dyslexia be with numbers" which receives 26 monthly impressions.

‍

‍

Common Questions About Dyscalculia

Here are answers to the most frequently asked questions about this topic, based on what teachers and educators commonly search for. Use it as a starting point for professional discussion: identify the learner's current need, record evidence from more than one lesson, and agree the next classroom adjustment with the SENCO or family.

‍

‍

Dyscalculia vs Dyslexia: Key Differences

Research (Butterworth, 2005) shows that dyscalculia makes it hard for the brain to handle numbers. This makes maths tasks and working out sums much harder for learners. On the other hand, dyslexia (Snowling, 2000) mostly affects reading and writing skills. It causes problems with spelling and sounding out words (Elliott & Grigorenko, 2014).

Many children have more than one condition at the same time. This overlap means they need specific support. Teachers should tailor their classroom strategies to fit each child's unique needs.

‍

‍

Classroom Identification of Dyscalculia

Experts spot dyscalculia when a child has lasting trouble with numbers. These learners find mental maths hard and take longer to see patterns (Butterworth, 2010). Maths signs like plus and minus often confuse them. They can fall behind in class, even with good teaching and normal thinking skills (Geary, 2004).

Educational psychologists can provide clear assessments to diagnose these learning needs. Their reports also give specific ideas for helping learners in the classroom (Frederickson & Cline, 2002; Farrell, 2009; Griffiths, 2020). These practical tips are vital for helping teachers provide the right support.

‍

‍

Main Signs of Dyscalculia in Learners

Geary (2004) found learners struggle counting backward and understanding place value. They have problems telling time and understanding maths operations. Butterworth (2010) noted poor number sense is common. Dowker (2004) found learners frequently use finger counting and find word problems hard.

These struggles often continue even with regular teaching. As a result, children may feel highly anxious during maths lessons.

‍

‍

Teacher Support for Learners with Dyscalculia

Researchers found these strategies help learners with dyscalculia. Teachers use visual aids and manipulatives (Dowker, 2004). They break tasks down (Butterworth, 2010) and give more time. These aids and achievable goals build learner confidence (Carroll & Dyson, 2018).

This approach allows learners to tackle more complex problems with growing confidence (Johnston-Wilder & Lee, 2010). Maths anxiety can hinder progress, but feedback that values strategy, effort and revision can support resilience, as Dweck (2006) argued. Boaler (2009) suggests number fact practise builds a strong foundation for further maths study.

‍

‍

Classroom Accommodations for Dyscalculia

According to experts, visual methods and maths tools can help. Give learners more time (Butterworth, 2010). Calculators help with complex sums. Use it as a starting point for professional discussion: identify the learner's current need, record evidence from more than one lesson, and agree the next classroom adjustment with the SENCO or family.

Breaking down problems helps learners grasp concepts (Dowker, 2004). Use objects to show ideas (Hughes, 2001).

Dyscalculia has no cure, but visual aids and extra time help learners. Teachers can use calculators (Butterworth, 2019) and simplify complex problems. Concrete examples help learners grasp concepts (Dowker, 2004). Multi-sensory practice builds helpful strategies (Hughes, 2001).

Extra time in tests or written tasks can help learners show what they know without rushing. Treat accommodations as Universal Design for Learning: keep the maths goal visible, offer more than one way to represent thinking, and remove barriers that are not part of the concept being assessed (CAST, 2024). Provide calculators, squared paper, worked examples and digital tools when these reduce recording or working memory load without removing the need to explain quantity, operation and reasonableness.

Technology can help with arithmetic when teachers choose it carefully. A calculator, spreadsheet or structured app can reduce copying and calculation load. Even so, teachers should still ask learners to explain the quantity, the operation and whether the answer is reasonable.

‍

‍

Teaching Methods for Learners with Dyscalculia

Multi-sensory approaches help learners with dyscalculia grasp maths, using sight, hearing, and touch. Manipulatives, visual aids, and clear steps aid learning. Frequent practice with feedback builds number sense (Butterworth, 2010; Ansari, 2008).

Learners with dyscalculia learn best through visual and practical maths teaching rather than abstract methods. Physical objects and colour-coding make complex ideas clear and concrete (Butterworth, 2010). Connecting maths to real life situations helps learners understand the subject better (Hughes, 2001). Regular practice and celebrating small wins helps to build their confidence (Dowker, 2004).

Older labels include arithmetical dyslexia, arithmetical disability, and Gerstmann syndrome. Temple (1991), Butterworth (1999), and Dehaene (1997) explore this area and suggest aphasia can affect a learner's number skills. Dyscalculia is not usually seen as a mental disorder, but it can link to ADHD and learning issues. Temple (1991), Butterworth (1999) and Dehaene (1997) show that 'number dyslexia' now replaces these older labels.

• Arithmomania: This condition involves an extreme need to count items, such as coins or notes. It can often lead to hoarding behaviour in affected individuals. In the past, professionals referred to this condition as arithmania.

• Arithmatica, An abnormal interest in mathematical subjects.

• Arthimania, Excessive love of numbers. 

Other Terminology associated with Number Dyslexia

• Aphasia, nonverbal, involving inability to compute or understand arithmetic facts.
• Arithmetic disability, including dyscalculia, is not considered an organic mental disorder by most authorities.
• It may be associated with other disorders such as attention deficit hyperactivity disorder, learning disabilities, reading difficulties, language impairment, autism spectrum disorders, and specific phobias. 

‍

‍

Multi-Sensory Teaching Methods for Dyscalculia

Number lines and blocks aid learners with dyscalculia in maths. Visual fraction models and digital tools also help (Butterworth, 2010). Base-ten blocks, calculators, and whiteboards let learners picture maths concepts. This reduces mental effort when problem-solving (Dowker, 2004).

There are some very good resources available to develop maths concepts, especially for those with number dyslexia. These include:

• The use of manipulatives, such as cubes, rods, rulers etc., in class activities;
• Using interactive whiteboards to show examples or explain concepts;
• Use of calculators/computers with software that can be used by teachers to create lessons on-line;
• A range of different types of mathematics games;
• Different ways of presenting information through graphs, charts, tables etc.;

Learners with dyscalculia may benefit from carefully chosen learning blocks when the teacher links each model to a clear number idea. Use them to build number lines, explore place value and represent basic operations. Colour and shape can make number relationships less abstract, but the resource only helps when learners explain what the model shows. This can reduce maths anxiety because the learner can see and handle the quantity before moving to symbols.

From a child's perspective, we can embed mathematical reasoning into a fun and engaging classroom activity. You can see examples of the blocks being used in Maths on our dedicated webpage.  For related guidance, see our article on VR in Education.

‍

‍

Number Sense and Learning Difficulties

Butterworth (2019) says number sense is the ability to understand amounts and how numbers work. Dyscalculia gets in the way of building this vital skill (Butterworth, 2019). Children with this need find it hard to estimate amounts, compare number sizes, and spot patterns (Butterworth, 2019). A weak number sense makes later maths lessons much harder (Dehaene, 2011; Piazza, 2010).

Number sense supports maths understanding, but it is not the whole story. Dowker (2024) argues that developmental dyscalculia is heterogeneous, which means it can vary from learner to learner. The barrier may be approximate quantity, exact symbolic number, arithmetic fact retrieval, working memory, processing speed or a combination.

This is why a learner may estimate "more or less" accurately with objects. The same learner may still struggle when the idea is written as 47 < 50. Or, they may know the symbol but misjudge the magnitude it represents.

Kroesbergen et al. (2023) found weaker working memory, processing speed and rapid naming in mathematical learning disability groups. This may explain why some learners lose track during multi-step calculations, even when they understand the concept.

Weak number sense creates learning issues beyond basic maths. Learners may not see that 7 is nearer 10 than 2, or that 15 can be decomposed into 10 and 5. They often use counting strategies instead of mental maths into secondary school, which can hinder fluency and confidence.

‍

‍

Multi-Sensory Approaches for Number Sense

Intervention should use many senses, not just numbers. Visuals like number lines help learners picture maths (Uttal et al., 2009). Piaget (1952) linked early intelligence to action on the environment, so movement activities can help learners connect numbers to real things. This helps learners with working memory issues (Alloway, 2009).

Teachers can build number sense across the school day, not only in maths lessons. Quick estimation games using classroom materials, such as guessing the number of pencils in a jar or comparing the heights of book stacks, help learners develop magnitude understanding.

Number talks also expose misconceptions and build metacognitive awareness. Ask, "Which is closer to 50: 48 or 42?" and let learners explain their reasoning. For learners with severe dyscalculia, break number sense into micro-skills such as recognising dot patterns without counting, or explaining "one more" and "one less" relationships. Check these skills regularly so gaps are addressed before they block later arithmetic.

‍

​

‍

Teacher-Led Dyslexia Checklist

Before asking for a formal test, teachers can use this checklist to collect clear evidence of a learner's persistent difficulties. Treat it as a screener, not a diagnosis. Screeners, classroom observations and general maths attainment tests can show risk or attainment gaps, but they cannot confirm dyscalculia.

A formal diagnosis needs a specialist assessment (British Dyslexia Association, 2025). This assessment looks at number sense, attainment, working memory, language, anxiety and the learner's history. We adapted this list from the SENsible SENCO community. It also looks at reading, writing, phonological processing, planning and emotional reactions.

#	Indicator	Category
1	Difficulty reading aloud or at a speed consistent with age and peer group	Reading
2	Finds it challenging to sound out unfamiliar words	Reading
3	Frequently misreads common words or mixes up letters when reading	Reading
4	Trouble following multi-step instructions, particularly when given orally	Processing
5	Difficulty spelling words accurately, even after practice	Writing
6	Frequently makes errors when copying from a board or book	Writing
7	Finds it hard to tell the difference between letters or numbers that look similar (e.g. b/d, 6/9)	Reading
8	Avoids reading out loud or reading activities in class	Behaviour
9	Frequently loses place or skips lines when reading	Reading
10	Struggles with writing sentences that are clear and organised	Writing
11	Finds it hard to remember sequences, like the alphabet or days of the week	Processing
12	Difficulty organising thoughts coherently for speaking or writing	Processing
13	Relies heavily on context to guess words, rather than reading them individually	Reading
14	Trouble remembering or pronouncing long or unfamiliar words	Reading
15	Finds it difficult to learn new languages	Processing
16	Experiences frustration or anxiety around reading and writing tasks	Behaviour
17	Struggles with phonological awareness (recognising and using sound patterns in words)	Phonology
18	Inconsistent performance across different academic subjects	Behaviour
19	Has trouble with time management, such as estimating how long tasks will take	Organisation
20	Relies on verbal instructions rather than written ones when possible	Behaviour
21	Finds rhyming activities difficult	Phonology
22	Family history of dyslexia or other specific learning difficulties	Background
23	Poor handwriting or difficulty with fine motor skills related to writing	Writing
24	Finds it hard to memorise facts, such as multiplication tables or phone numbers	Processing

Adapted from the SENsible SENCO community Teacher-Led Dyslexia Checklist. Tick indicators observed consistently over time, not on a single occasion. Six or more ticks across multiple categories warrants a referral discussion with your SENCO. This is a screening tool, not a diagnostic instrument.

‍

Testing and Assessment Accommodations

Sokolová et al. (2022) find that dyscalculia is often missed, which can lead to misunderstanding. To support learners with this challenge, adapt your classroom. Think about the physical space, sensory needs, and structural adaptations. Researchers say these changes may improve a learner's numerical processing.

Physical classroom changes should reduce cognitive load and support visual processing. Seat learners with dyscalculia away from busy walkways and close enough to see board work clearly.

Keep visual cues consistent. Use red for tens and blue for ones in place value work, label maths resources clearly, and make number lines, counting bears and base-ten blocks easy to find. Keep wall displays sparse, with clear spacing between digits, so learners do not have to process clutter before thinking about number.

‍

‍

Creating Supportive Classroom Environments

Mihajlovic and Meier (2023) say adapt the environment for learning. Use tactile number lines on desks so learners trace numbers. Create movement zones for learners to walk number lines. Try rhythmic clapping for times tables or use headphones.

A structured classroom environment is key, so try using visual timetables to help learners prepare (Geary, 2010). You can also provide quiet workspaces to reduce distractions and set up a buddy system for peer support (Butterworth & Yeo, 2004; Dowker, 2004). Finally, normalise the use of learning aids by displaying visual problem solving methods alongside standard algorithms (Sharma, 2021).

‍

‍

Co-occurring Learning Difficulties with Dyscalculia

Adults often live with unrecognised maths difficulties, even though most attention goes to learners. They may rely on calculators and avoid tasks with numbers (Butterworth, 2010). These strategies can limit jobs and independence (Parsons & Bynner, 2005). Educators should understand adult dyscalculia because parents may struggle with homework, and this can create maths anxiety in families (Gifford, 2005).

Adults with dyscalculia often face problems at work, such as managing budgets. Ahn's (2024) AI tools show promise for improving number skills in adult learners. These tools adapt to each person and provide helpful visual aids. Teachers should bring in this supportive tech early on, which helps learners build lifelong coping habits.

‍

‍

Supporting Adult Learners with Dyscalculia

Chai et al. (2019) found multimedia boosts learning for adults, especially those with dyscalculia. Brain-based methods help learners build number skills. Combining sight, sound, and movement works well. This approach adapts childhood methods to adult lives.

Recognising dyscalculia signs in adults is key for educators. Adults may feel anxious with numbers (Butterworth, 2010). They could be late due to problems telling time (Emerson & Landerl, 2022).

Offer support using tools like visual aids for cooking (Attwood et al., 2018). This boosts adult confidence and helps them support their children (Chinn, 2015).

‍

Essential Dyscalculia Teaching Resources

Visual number charts aid learners with dyscalculia (Geary, 2004). Manipulatives and graphing software help too (Mazzocco, 2007). Structured worksheets support maths learning (Butterworth, 2010). Use it as a starting point for professional discussion: identify the learner's current need, record evidence from more than one lesson, and agree the next classroom adjustment with the SENCO or family.

These tools give concrete examples (Kaufmann, 2011). They support memory and use multiple senses for understanding (De Smedt, 2016).

Number lines and base-ten blocks help learners with dyscalculia. Digital maths apps, graph paper tools, text-to-speech for word problems and calculator access can also reduce copying errors and working memory demands (British Dyslexia Association, 2025). Adaptive games can help when they give quick feedback and keep quantities visible. But they should not replace teacher diagnosis of the exact number concept that is missing (Dowker, 2024).

‍

‍

Using Numicon for Number Sense

Numicon is a great tool for visualising maths concepts and could be very useful for individuals with dyscalculia. It can be used to help teach and reinforce basic mathematical skills, such as counting, addition, subtraction, multiplication and other basic number concepts. The app also includes an interactive calculator that allows you to practise basic maths skills. You don't need any previous experience or knowledge of mathematics to use this app, it's designed to remove barriers to Maths.

What is Singapore Maths?

Singapore maths uses concrete and pictorial representations before formal written methods. This helps learners see how numbers can be partitioned, regrouped and combined before they work with abstract symbols.

For a learner with dyscalculia, this could mean building 34 with base-ten blocks, drawing the tens and ones, then writing 30 + 4. The approach is useful when teachers keep the representation stable and check that the learner understands the quantity, not only the procedure.

‍

‍

Using Dienes Blocks for Place Value

Dienes blocks are useful for teaching place value, number composition and basic operations. Learners can stack ten unit blocks to represent 10, place five and five together to show 5+5=10, or count the total in a model. The physical movement makes abstract number relationships visible and gives teachers a clear way to check conceptual understanding.

‍

‍

‍

Teacher FAQs About Dyscalculia Support

‍

Dyscalculia Prevalence in Classrooms

Dyscalculia affects number sense, calculation and maths reasoning. The British Dyslexia Association (2025) estimates that around 6% of people have dyscalculia, while around 25% have maths learning difficulties for a wider range of reasons. In a class of 30, that means a teacher may see several learners who need targeted maths support, though not all will meet criteria for a dyscalculia diagnosis.

‍

‍

Key Dyscalculia Warning Signs for Teachers

Researchers (e.g., Geary, 2004) advise teachers to note learners struggling with number words. Watch for problems with addition and subtraction (Dowker, 2005).

Look for difficulty recognising multiplication tables (Butterworth, 2010). Also check whether the learner can match one number to one object, known as one-to-one number-object matching (Wynn, 1990). Some learners struggle to count past 12 and show 'subtractive confusion' (Hughes, 1986).

‍

‍

Adapting Teaching Methods for Learners with Dyscalculia

Visual methods help learners with poor memory (Baddeley, 1992). Teachers can use symbols to show quantities (Skemp, 1971). Sweller (1988) showed that it helps to reduce unnecessary mental load, so give written instructions instead of verbal ones. Bruner (1960) argued for moving from concrete examples towards abstract understanding, and pictures, diagrams and models can help learners remember mathematical concepts.

‍

‍

Why Dyscalculia Is Often Missed in Schools

Professionals often miss the signs of dyscalculia because they get limited training in mathematical learning difficulties. Medical trainees, teachers and families may see ongoing number sense problems as low confidence or poor effort. As a result, many adults wrongly assume that struggling with maths is normal. They may not see it as a specific learning need (Butterworth, 2010; British Dyslexia Association, 2025).

‍

‍

Impact of Undiagnosed Dyscalculia on Education

Dyscalculia can hold back a child's progress in school and discourage them from learning later in life. It can also have a negative impact on their mental wellbeing and social skills (Butterworth, 2010). Basic number skills are vital for everyday tasks as well as overall success in the classroom (Geary, 2004; Dowker, 2005).

‍

‍

Ensuring Proper Dyscalculia Support in Schools

Dyscalculia needs diagnosis from a qualified specialist. However, classroom evidence should come first (Butterworth, 2005; Chinn, 2015). Use a short assess, plan, do, review cycle. Check number sense, teach one concrete strategy, and review the response after two to four weeks.

Then decide whether SENCO referral or educational psychology input is needed. This protects limited assessment budgets while still taking persistent maths difficulty seriously.

‍

‍

Dyscalculia Causes and Treatment Options

There is no single cause for dyscalculia. It likely comes from a mix of brain development, genetics, number processing, working memory, attention and classroom opportunity. It also often runs in families.

There is no simple cure. Even so, teachers can reduce barriers by teaching with concrete models, checking place value and estimation, reducing avoidable memory load and reviewing progress over time.

‍