How speech and math are connected: why counting needs a speech therapist
Why speech is connected to math
When we think about difficulties with math, we think about numbers. But many children with dyscalculia have general speech underdevelopment — and that's not a chance coincidence. Speech is involved in every step of math work: understanding the task, holding the conditions of a problem in mind, talking through the steps of the solution.
If a child doesn't understand the word “subtract,” they won't solve the problem, even if they can subtract using objects. If they don't know the words “between,” “before,” “after,” they'll get lost in the number sequence.
What exactly suffers when there are speech difficulties
A limited math vocabulary
The child doesn't know or confuses the words: combine, add, take away, measure, divide, compare. And also the terms: sum, addend, difference, whole, part. Without these words, it's impossible to understand the teacher's instructions and the word problem.
Antonyms haven't developed
Big — small, long — short, high — low, wide — narrow. This is the foundation of comparison problems. A child who doesn't have a command of antonyms won't understand the question “How many more?”
Problems with spatial and time words
“First,” “then,” “between,” “before,” “behind,” “above,” “below” are the skeleton of any word problem. If a child can't tell “before” from “after,” the number sequence is chaos for them.
Complex grammatical constructions
“Dad is older than his daughter but younger than Grandpa. Who is the oldest?” — this is an ordering problem hidden in grammar. A child with speech difficulties hears the words but can't put them together into a logical connection.
Why talking it through isn't just a whim
When a child says an action out loud (“I'm putting three sticks here and two here, five in all”), they aren't just commenting. They are forming a mental plan of the action. The word clarifies the thought, consolidates understanding, and helps the child move from acting with their hands to acting in their head.
This is confirmed by neuroscience: a verbal symbol doesn't just encode the relationships between objects — it helps to differentiate them and become aware of them.
What this means for a parent
If a child has speech difficulties and difficulties with math at the same time, these are almost certainly connected. In that case, working with a speech therapist isn't “separate from math” — it's part of the math intervention.
Specific techniques: link every math action to a word, practice antonyms and spatial prepositions, ask the child to describe in words what they are doing with their hands. Detailed exercises are in atlas card S-34.