5-7%
Children with dyscalculia (as common as dyslexia)
15%
Of teachers report students screened for it
19
Mini-tests, six cognitive domains
90s
From screener to full clinical report
Dyscalculia is as common as dyslexia. It’s almost never screened for.
Research puts dyscalculia prevalence between 5 and 7 percent of school-age children, roughly the same as dyslexia. Boys and girls are affected at equal rates, unlike dyslexia which skews male.
Yet a 2024 US survey of teachers found that only 15 percent of students had been screened for dyscalculia. Reading screeners are standard in most districts. Math screeners are not. The result is millions of children carrying an invisible math learning difference into middle school, where the gap compounds.
EMA closes that gap with a screener short enough for universal screening and deep enough for clinical work.
Sources: Shalev 2007; Görker et al. 2017; eSchool News 2024 teacher survey, October 2024.
When you run EMA on a learner this week
Three things happen the same session. Not next month. Not after the IEP meeting.
01
A full cognitive profile in 40 to 50 minutes
Six domains, 19 mini-tests, real-time scoring. EMA records accuracy and speed separately, so you see when a child knows the answer but cannot retrieve it fast enough.
02
The dyscalculia pattern is named
EMA maps the score profile against known dyscalculia subtypes: number sense, procedural, semantic memory, and visual-spatial. The clinical report calls the pattern, not just the percentile.
03
The intervention plan is in the report
Concrete-representational-abstract sequences, multi-sensory phonics-of-math, manipulatives, math anxiety strategies, accommodations. Each tied to the specific subtest that flagged it.
The score tells you they got 40% right. It doesn’t tell you why.
A grade-level math test gives you a percentage. It cannot tell you whether the child is collapsing on number sense, on fact retrieval, on working memory, or on visual-spatial processing. Each of those points to a different intervention.
So you either refer for a full psychoeducational evaluation (40-week waitlist, $2,000+ out of pocket) or you guess. Both options cost the child time.
EMA gives you the cognitive map in one session.
The Learning Center of America signed and sent the report the same day.
Six cognitive domains. Nineteen mini-tests.
The architecture is grounded in research on the cognitive and neurodevelopmental foundations of mathematical learning. Each domain links to specific intervention approaches in the report.
Number Sense
6 mini-tests
Forward and backward counting, number recognition, 1:1 correspondence, number line, comparing numbers. The foundation. Weak here and everything downstream wobbles.
Math Facts
4 mini-tests
Addition, subtraction, multiplication, and division fluency. EMA scores accuracy and speed separately, so you see when retrieval is intact but slow (counting strategies) versus when it has not been built at all.
Math Reasoning
1 mini-test
Word problems, logical thinking, conceptual application. The skill that translates classroom math into the kind of multi-step problems standardised tests and life actually demand.
Visual Processing
2 mini-tests
Subitizing (instant quantity recognition without counting) and spatial processing. Visual-spatial dyscalculia is often the silent driver behind geometry, place value, and number-line difficulties.
Working Memory
1 mini-test
Digit span. Research shows math anxiety eats working memory capacity, which then degrades performance, which feeds the anxiety. EMA flags the working memory signal early so intervention can address both.
Rapid Automatized Naming
5 mini-tests
RAN of objects, colors, letters, digits, and shapes. Processing speed and visual-verbal association. A strong predictor of math fluency and a marker for co -occurring reading risk.
Four dyscalculia patterns. Four different intervention paths.
“Dyscalculia” is a category. Inside it sit clinically distinct profiles that respond to different approaches. EMA maps the score profile to the pattern, so the intervention is the right one.
Number sense dyscalculia
The Core Deficit Pattern
Difficulty representing quantity itself. The child struggles to estimate, compare magnitudes, or place numbers on a number line. Often visible from kindergarten and the earliest to remediate when caught.
EMA flags via
Low subitizing, weak comparing numbers, broken number line, slow magnitude judgments.
Procedural dyscalculia
The step-sequence pattern
Difficulty with the order and execution of mathematical procedures. The concepts are understood, but multi-step problems collapse. Often confused with inattention or carelessness.
EMA flags via
Math reasoning gaps with intact number sense, drop in accuracy on multi-step word problems, working memory weakness.
Semantic memory dyscalculia
The Retrieval Pattern
Difficulty storing and retrieving math facts from long-term memory. Counting strategies persist into grades where fluency should be automatic. Looks like effort, is actually wiring.
EMA Flags Via
High accuracy but slow speed on addition or subtraction fluency, near-zero multiplication and division retrieval, slow RAN.
Visual-spatial dyscalculia
The place-value and geometry pattern
Difficulty processing the spatial dimension of numbers. Place value collapses. Multi-digit numbers feel like one blurry thing. Geometry and measurement are uphill.
EMA Flags Via
Low spatial processing, weak number line, multi-digit number errors (often defaulting to the middle digit), visual tracking issues during RAN
Sofia, Grade 4, 10 years old
Compliant. Bright. Already diagnosed with dyslexia. And a math profile her grade-level test would have called “below average” without ever explaining why.
Sofia R.
Grade 4 · Age 10 · Screened Dec 2025
Foundations (strong)
Number sense (collapsing)
Math facts (all deficient)
Cognitive load
Sofia’s foundational number skills are intact. She knows what numbers represent. She can subitize. She can compare magnitudes. A grade-level test would miss this strength entirely and call her “below grade level” in math.
The collapse starts at the next layer. Number recognition (40%), number line (30%), backward counting (20%). Multi-digit numbers are particularly hard. The clinician observed Sofia defaulting to the middle digit when reading any number with more than two places, a textbook signal of place-value processing weakness.
The math fact pattern is its own story. Addition and subtraction accuracy is essentially perfect (92% and 100%). But she only completed 13 and 8 problems out of 40 in 60 seconds. She knows the answers. She is counting to get to them.
Multiplication and division have not been built at all. Division: 0 of 40 attempted. This is the semantic memory pattern, sitting on top of visual-spatial weakness, sitting on top of working memory under pressure (40% digit span).
Behavioral observations the report captured
- Shut down and avoidance when uncertain (math anxiety signal)
- Fatigue during demanding tasks, prompting needed to maintain effort
- Visual tracking difficulty observed during all RAN subtests
- Defaulted to the middle digit on multi-digit numbers
- Co-occurring dyslexia diagnosis reported by parent
EMA named the pattern as a layered profile: visual-spatial dyscalculia with semantic memory retrieval weakness and high math anxiety load, alongside the existing dyslexia diagnosis. The intervention plan started the following week with concrete-representational-abstract sequences for place value, motivational pacing to address anxiety, and a referral for a comprehensive psychoeducational evaluation.
A traditional math test would have called Sofia “below grade level” and stopped there. EMA gave us the cognitive map, the dyscalculia subtype pattern, and the behavioral observations in one report. We started the right intervention the following week instead of guessing for a term.
Reading and Math Specialist, partner learning center
Three steps. One session.
From learner intake to a clinical report you can hand a parent the same afternoon.
1
Add the learner
Name, grade, country. Note any prior diagnoses or accommodations. Reading items aloud is built in for co-occurring dyslexia cases.
~15 seconds
2
Run the mini-tests
The screener runs across six domains. The clinician observes for the behavioral signals research shows matter: math anxiety, tracking issues, multi-digit processing errors. Those observations enter the report.
40 to 50 minutes
3
Get the report
Score profile, ranked tests, subtype pattern match, behavioral context, clinical interpretation, intervention plan, accommodations, and referral guidance. Parent-ready and school-ready.
~90 seconds
Research-grounded design
GDPR compliant
FERPA aligned
HIPAA-aligned data handling
MTSS / RTI ready
WCAG 2.2 AA
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