Knowledge gap finder: how to identify student misunderstandings and suggest targeted practice

What exactly the tool does and when it is useful

'Knowledge gap finder' is a text tool that accepts two fields: source material (student answers, their reasoning, problem solutions) and a learning goal (which skill or topic you are checking). Based on this, it highlights fragments where the student demonstrates incorrect understanding and suggests short exercises for practicing exactly those spots.

The tool does not replace a teacher and does not assign grades. Its task is to give a hypothesis about where the gap lies and suggest where to start repeating. The result should be considered a draft for your further work, not a final diagnosis.

It is useful when you need to quickly check a group of answers, prepare an individual lesson plan, or understand why a student consistently makes similar mistakes. If you only need to check answer correctness without analyzing understanding, the tool would be redundant.

A math teacher enters in the source field: 'I think percentages are added directly: a 20% discount, then another 10% — that's 30%'. In the goal field: 'Understand how sequential discounts affect the final price'. The tool points out the misunderstanding that percentages are applied to different bases and suggests exercises on sequential percentage application.

How to prepare source material

Collect student answers in one text. These can be written solutions, transcriptions of oral explanations, answers to test questions with justification. It is important that the text reflects the student's reasoning, not just the final answer. More context means a more precise analysis.

Remove the unnecessary: teacher grades, comments, notes unrelated to the task. If there are many answers, group them by topics and analyze in parts. Remember that the source material field is limited to 8000 characters, so long works should be broken into several runs.

Do not edit the student's formulations, even if they contain errors. The tool must see real reasoning to find exactly the gaps that hinder learning. If the student wrote with errors, save them — this is part of the diagnosis.

How to formulate a learning goal

The goal is not a lesson topic, but a specific skill or understanding you are checking. For example, not 'percentages', but 'ability to apply sequential percentage changes'. The more precise the goal, the more relevant the suggested exercises.

In the goal field you can indicate the student's level and desired result: '6th grade student must learn to explain why discounts do not add up'. This will help the tool select appropriate exercise difficulty.

If there are multiple goals, choose one main one. The tool analyzes one request at a time, so mixing different topics may blur the result. Better to do several runs with different goals.

Goal: 'Learn to check that when sequential discounts are applied the final price is not equal to the sum of percentages'. Source material: student answers on three tasks with different discounts.

Step-by-step launch and settings

Open the web form of the tool. In the first field paste the prepared text with student answers. In the second field enter the learning goal. Choose output language if necessary. Press the 'Generate' button.

The result will appear in a separate panel. It can be copied or downloaded as a simple text file TXT. The tool does not save data automatically, does not send it by email, and does not publish. All actions are performed manually.

Pay attention to limitations: the first field — up to 8000 characters, the second — up to 1000. If the text does not fit, shorten it or split it into parts. The tool does not support document upload, OCR or batch processing.

Open the web form. Paste the student's answer text into the first field. Enter the learning goal into the second field. Press 'Generate'. The result appears in a separate panel.

How to check and interpret the result

Read the proposed analysis. The tool may indicate several possible gaps. Your task is to evaluate which of them are really confirmed by other student works. Do not take a single error for systematic misunderstanding.

Check the suggested exercises: do they correspond to the goal, are they not too easy or too difficult. If the task seems irrelevant, try to refine the goal and run the analysis again.

Compare the tool's conclusions with your observations. If they match, use the suggested practice. If not — maybe the source text lacks context or the goal is formulated too broadly.

The tool suggested three tasks on sequential discounts. The teacher sees that the student made a mistake only in one of the three original tasks, so the gap is not systematic but related to carelessness. The teacher decides to give one exercise for reinforcement, not a full block.

Limitations and typical errors

The tool is not a grading system and does not guarantee that the found gap is the only reason for errors. It analyzes text, not the student's mind. If a student accidentally described something, the tool may mistake it for misunderstanding.

The model may make errors, and queue and availability may change. Do not use the result as the sole source for assigning grades or making important educational decisions.

Do not upload personal data into the tool if not required. Although the tool does not automatically save data, it is always better to anonymize information before entering.

The tool suggested three tasks on sequential discounts. The teacher sees that the student made a mistake only in one of the three original tasks, so the gap is not systematic but related to carelessness. The teacher decides to give one exercise for reinforcement, not a full block.

Practical example of use

Imagine a student solving a problem: 'A item cost 1000 rubles. First the price was reduced by 20%, then another 10%. By how many percent did the price fall?' The student answers: 'By 30%, because 20+10=30'. A teacher enters this answer in the source field and sets the goal: 'Understand that percentages are applied to different bases'.

The tool analyzes the answer and points out that the student adds percentages, not considering the change of base. As practice, it suggests tasks where you first need to calculate the new price after the first discount, and then apply the second discount to the already changed price.

The teacher checks the result: indeed, the student made a mistake in similar tasks before. He uses the suggested exercises for the next lesson. A week later the student solves a similar problem correctly, explaining that the second discount is calculated from the new price.