Your child is struggling at school.
Homework takes too long.
Test results are getting worse.
The same mistakes keep appearing.
Perhaps the teacher says:
They need more practice.
Or perhaps the obvious conclusion is:
We need a tutor.
Sometimes that is exactly right.
But there is a problem.
“Needs more practice” is not a diagnosis.
Neither is:
“Needs a tutor.”
A child can struggle in mathematics because a prerequisite concept is missing.
Another can understand mathematics but misunderstand the language of the task.
A student can know English grammar but be unable to retrieve it while speaking.
Someone can solve a problem with help but have no idea how to begin independently.
Another student may understand everything during the lesson and forget most of it two days later.
From the outside, all of these situations can look like the same thing:
The student is falling behind.
Educationally, they are completely different problems.
Before adding more exercises, more lessons, or more hours, it is worth asking:
What exactly is missing?
Poor performance is evidence — not an explanation
Suppose a child receives 55% on a mathematics test.
What does 55% tell us?
It tells us that under those particular conditions, a certain proportion of responses did not satisfy the assessment criteria.
That matters.
But it does not tell us why.
Perhaps the student:
- does not understand fractions;
- understands fractions but makes arithmetic errors;
- knows the procedure but cannot recognize when to use it;
- misunderstands written instructions;
- works too slowly;
- becomes anxious under time pressure;
- forgot an earlier prerequisite;
- can follow examples but cannot start an unfamiliar problem;
- knows the mathematics but is studying it through a language they have not fully mastered.
One score can be produced by many different mechanisms.
Treating the score itself as the problem is like treating a fever as the name of the disease.
It is a signal.
The next step is diagnosis.
“More practice” only works when practice targets the right problem
Practice is essential to learning.
But practice is not one thing.
If a student understands multiplication but calculates too slowly, repetition may help develop fluency.
If the student fundamentally misunderstands multiplication, repeating fifty similar exercises can reinforce the wrong model.
If the problem is reading the question, additional calculation exercises may solve nothing.
If the learner cannot choose a method independently, practising a worksheet where every question requires the same method may create impressive results without solving the real difficulty.
So before saying:
More practice.
we should ask:
Practice of what? Under what conditions? For which missing ability?
The word practice becomes useful only after the target is clear.
The first distinction: knowledge or access?
A student may know something and still fail to use it.
This happens constantly in both languages and academic subjects.
Ask a student a grammar question directly:
Which tense do we use here?
They answer correctly.
Five minutes later, during spontaneous conversation, the same structure disappears.
Or show a mathematics student the first step of a problem.
Immediately:
Oh! I know how to do this.
But without that first step, the student was stuck.
This suggests an important distinction:
having knowledge and being able to access knowledge when needed are not identical.
If the knowledge itself is missing, teaching may be required.
If access is the problem, another explanation may add very little.
The learner may instead need retrieval, varied application, reduced prompting, or opportunities to recognize independently when the knowledge is relevant.
The second distinction: understanding or procedure?
Students can become surprisingly good at procedures they do not understand.
Consider mathematics.
A student learns:
- identify the numbers;
- insert them into a formula;
- calculate;
- write the answer.
As long as the problem resembles the examples, performance looks excellent.
Change the wording.
Add irrelevant information.
Ask the same concept from another direction.
Suddenly the method disappears.
The student did not necessarily learn the mathematical relationship.
They learned a route through a familiar task.
The same thing happens in grammar.
A student can complete twenty exercises on Present Perfect because the page is titled Present Perfect.
Real conversation does not contain chapter titles.
The learner must first decide which distinction matters.
That decision is part of the knowledge.
The third distinction: a current topic or an older missing prerequisite?
A child may appear to struggle with today’s material when the real problem began months or years earlier.
Algebra becomes difficult.
But perhaps the underlying weakness is fractions.
Chemistry calculations become difficult.
Perhaps proportional reasoning is unstable.
Physics problems collapse.
Perhaps algebraic manipulation is the bottleneck.
Advanced English writing becomes difficult.
Perhaps sentence structure was never fully established.
This creates a dangerous pattern.
The student receives additional explanation of the current topic.
It does not work.
So the current topic is explained again.
Then again.
The actual missing prerequisite remains untouched.
A useful tutor should therefore sometimes move backward before moving forward.
Not because the student needs to repeat an entire previous course.
Because one missing structural element can destabilize everything built on top of it.
The fourth distinction: subject difficulty or language difficulty?
This is particularly important for multilingual students.
Imagine a student studying mathematics in English.
The student reads:
A tank is filled at a constant rate…
They know the mathematics.
But what exactly does at a constant rate mean?
Or consider:
By how much does X exceed Y?
The mathematical operation may be simple.
The linguistic relationship may not be.
Now reverse the situation.
The learner understands every word individually but still cannot identify what the problem is asking.
Is this a mathematics problem?
An English problem?
A reading-comprehension problem?
A problem with mathematical discourse?
Potentially, several layers are interacting.
That is why Language + Subject cannot always be reduced to either ordinary language teaching or ordinary subject tutoring.
Sometimes the difficulty exists precisely at the interface between them.
A student can understand every word and still misunderstand the task
This deserves special attention.
Parents often test comprehension by asking:
Do you know all these words?
The student says yes.
So language appears not to be the problem.
But sentences express relationships, not collections of dictionary entries.
Words such as:
- unless;
- respectively;
- approximately;
- at least;
- no more than;
- in contrast;
- proportional to;
- assuming that;
- provided that;
can completely change what a task requires.
Academic language compresses reasoning.
Knowing the vocabulary does not guarantee that the learner can reconstruct that reasoning.
This is one reason a student can appear strong in a subject in one language and significantly weaker in the same subject in another.
The underlying intelligence did not disappear.
The processing environment changed.
The fifth distinction: cannot do it or cannot do it alone?
This may be one of the most revealing tests.
Give the student a problem.
They are stuck.
Offer a small hint.
Suddenly they can finish everything.
What happened?
The student clearly possesses much of the required knowledge.
But some part of the initiation process is missing.
Perhaps they cannot identify the problem type.
Perhaps they do not know which information matters.
Perhaps they cannot choose the first operation.
Perhaps they have become accustomed to waiting for confirmation.
Now consider another student.
Give a hint.
Still nothing.
Give another.
Still nothing.
Explain the underlying idea.
Now the problem becomes solvable.
These two students should not receive the same intervention.
One may need less support.
The other may need more teaching.
Help can sometimes hide the problem
Adults naturally want to help children succeed.
Teachers do too.
A student hesitates.
We provide the first step.
The student continues.
A question becomes difficult.
We rephrase it.
The student answers.
A word is missing.
We supply it.
The task gets completed.
Everyone feels better.
But there is a hidden risk.
If support arrives too quickly, we may never discover what the learner can actually do independently.
The student appears successful because the environment continuously repairs the learning process.
This creates a distinction between:
performance with support
and
available ability without support.
Both matter.
But they are not the same.
The sixth distinction: does not know or is afraid to commit?
Some students produce very little because they know very little.
Others know considerably more than they are willing to risk using.
This is especially visible in languages.
A learner constructs a sentence mentally.
Checks it.
Changes it.
Checks again.
Decides it might be wrong.
Says nothing.
From the outside:
They cannot speak.
But the problem may not primarily be missing vocabulary or grammar.
It may involve excessive monitoring, fear of error, slow decision-making, or dependence on certainty.
Giving this student another hundred vocabulary items may increase knowledge while leaving speaking almost unchanged.
Again:
same visible problem,
different mechanism.
The seventh distinction: memory failure or learning-design failure?
A child learns something on Monday.
By Friday, much of it is gone.
The immediate conclusion may be:
They have a bad memory.
But forgetting is normal.
The more useful question is what happened between Monday and Friday.
Was the knowledge retrieved?
Used?
Connected to anything?
Encountered in another context?
Was Monday’s success based mostly on recognition?
Did the student ever produce the knowledge without looking at the model?
Memory is not simply a storage container that some students possess and others do not.
How knowledge is encountered and retrieved affects what remains available.
Sometimes the solution is more repetition.
Sometimes it is better-spaced and more demanding retrieval.
Those are not the same intervention.
The eighth distinction: lack of ability or an impossible learning environment?
Sometimes we keep looking inside the student for the problem.
But the environment may be doing much of the damage.
Consider a teenager who has:
school all day,
several extracurricular activities,
homework,
three tutoring sessions,
language lessons,
constant tests,
and insufficient sleep.
The response to falling performance becomes:
Add another lesson.
At some point, more instruction competes with the cognitive resources required to benefit from instruction.
The issue may not be motivation.
It may not be intelligence.
It may not even be the subject.
The system itself may be overloaded.
Educational planning has to consider the learner’s actual life.
How can a parent tell what kind of problem they are seeing?
You do not need to become a professional teacher.
But you can observe patterns.
Ask the child to explain
Not:
Do you understand?
Most students will say yes.
Instead:
Explain it to me in your own words.
If the learner can reconstruct the idea, understanding may be stronger than the original performance suggests.
Change the example
If the student succeeds only when the task looks exactly like the model, transfer may be weak.
Remove the hint
See what happens before helping.
The point is not to make the child struggle unnecessarily.
It is to discover where independent performance stops.
Ask for the first step
A student who cannot solve the entire problem may still know how to begin.
Or the inability to begin may be the central difficulty.
Ask why
A correct answer followed by:
Why?
can reveal whether the answer came from understanding, memory, guessing, or pattern recognition.
Return to the problem later
Immediate success and delayed availability are different forms of evidence.
When does a tutor make sense?
A tutor can be valuable when the learner needs something that the current environment is not providing sufficiently.
For example:
- diagnosis of persistent difficulties;
- reconstruction of missing prerequisites;
- alternative explanations;
- individualized pacing;
- targeted practice;
- feedback;
- systematic reduction of support;
- work across two languages;
- connection between a language and an academic subject;
- adaptation to a particular educational system;
- help transferring knowledge into independent performance.
But simply adding a tutor does not automatically solve the problem.
A tutor who misdiagnoses the difficulty can produce more activity without producing the required change.
The tutor should not become a permanent external processor
There is another trap.
A student receives a difficult homework problem.
The tutor helps.
Another problem appears.
The tutor helps again.
Soon the educational relationship becomes:
problem appears → tutor resolves difficulty → student continues.
This can improve grades.
It can also create dependency.
The better long-term trajectory is:
teacher identifies what the student cannot yet do → intervention → supported attempt → reduced support → independent attempt.
The tutor’s knowledge matters.
But the final objective is not to demonstrate how much the tutor knows.
It is to increase what the student can do without the tutor.
How many lessons does the child need?
Only after identifying the problem does frequency become meaningful.
We have explored this issue separately for language learning:
The same principle applies more broadly.
One precisely targeted lesson can sometimes resolve a conceptual obstacle that weeks of repetitive practice failed to address.
At other times, understanding is already present and what the learner genuinely needs is sustained practice over time.
Frequency should follow diagnosis.
Diagnosis should not follow the package being sold.
And what are you actually paying a private teacher for?
This leads to another important question.
If the answer is simply:
an hour of someone’s time,
we are measuring the wrong thing.
The educational value of individual teaching lies largely in the quality of decisions made about the learner.
We examine that question here:
Although that article focuses on language lessons, the underlying principle extends much further.
Observation.
Diagnosis.
Intervention.
Response.
Adjustment.
These processes matter in mathematics, chemistry, physics, programming, biology, languages, and interdisciplinary learning.
A better question than “Does my child need a tutor?”
Try replacing it with:
What can my child not yet do independently, and why?
That question is more difficult.
It is also much more useful.
Perhaps the answer reveals a knowledge gap.
Then teach it.
Perhaps understanding exists but retrieval is weak.
Then train retrieval.
Perhaps the learner needs more varied practice.
Then vary the conditions.
Perhaps language is blocking access to a subject.
Then work at the Language + Subject interface.
Perhaps the student performs only with prompts.
Then reduce support strategically.
Perhaps the learning environment is overloaded.
Then another lesson may be the wrong intervention entirely.
The correct response depends on the mechanism.

Grades matter — but they are not the whole diagnosis
None of this means that school results should be ignored.
Grades provide information.
Tests provide information.
Teacher feedback provides information.
Homework provides information.
But each is evidence from a particular situation.
The educational task is to connect those observations into a model of what is happening.
A low grade tells us:
something did not work.
Good diagnosis asks:
what?
where?
under which conditions?
and why?
Only then does “what should we do next?” become answerable.
The goal is not more education. It is better-targeted education.
When a child struggles, doing more feels responsible.
More exercises.
More homework.
More lessons.
More explanation.
More tutoring.
Sometimes more is exactly what is needed.
But education does not improve simply because its volume increases.
The right intervention might be:
more practice,
less help,
a different explanation,
an older prerequisite,
another language,
a harder task,
an easier task,
more retrieval,
more time,
or no additional lesson at all.
That is why the central question is not:
How much more should we add?
It is:
What is actually missing?
Once that becomes clear, tutoring stops being a reflex.
It becomes an educational decision.
Languages, Academic Subjects, and Language + Subject
Levitin Language School works internationally across three connected educational directions:
Languages
Academic Subjects
Language + Subject
This architecture matters because a student’s difficulty does not always respect the boundaries between school subjects.
A mathematics problem can partly be a language problem.
A language problem can become visible only when the learner tries to study science.
A student may possess knowledge but lack the ability to access it independently.
The task is therefore not simply to assign more exercises.
It is to identify the layer in which the learning process is breaking down.
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Tymur Levitin
Founder & Director, Levitin Language School
Languages • Academic Subjects • Language + Subject
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