Grammar by Example: How to Explain a Rule and Get Exercises with an Answer Key
"Grammar practice" is a text-based tool that, upon your request, explains a grammatical rule and creates exercises with an answer key. It works via a web form: you fill in a field with text or an idea and a field with audience or experience level, choose the output language, and press Generate. The result appears in a separate panel as plain text, which you can copy or download as TXT. This is not a course and not an interactive trainer: the tool does not check your answers, does not keep statistics, and does not store history. In this article we will break down a real working scenario -- preparing material for a lesson or self-study -- with clear steps, limitations, and ways to verify the result.
Open tool: Grammar practice ↗What the Tool Does and Does Not Do
The tool's task is narrow: to receive a description of a rule and a set of exercises for it. Two text fields are used as input. The first -- "Your text or idea": here you can insert a rule formulation, an example sentence, a list of student errors, or simply a topic name. The second -- "Audience or experience level": for example, "adults, A2 level" or "students preparing for an exam". The more specific both fields are, the more useful the result.
The tool is not a learning management system. It does not check user answers, does not assign grades, does not adaptively select tasks, and does not remember previous requests. The interface has no setting panels, sliders, or comparison modes. You cannot upload a document, get PDF or DOCX, send the result by email, or publish it directly. Export is plain text TXT only; images are SVG and PNG; speech is WAV via eSpeak; subtitles are SRT.
Separately, it is worth noting limits. The first text field accepts up to 8000 characters; the details field up to 1000. For speech the limit is 3000 characters, for images 4 MB, for browser audio 20 MB or 5 minutes. Model responses may contain errors, and queue and service availability may change. Therefore, the result should always be reviewed manually, especially if you plan to use it in teaching.
Example of filling in: field "Your text or idea" -- "Explain the difference between past simple and present perfect with examples"; field "Audience or experience level" -- "adult learners, B1 level, Russian-speaking". Output language -- Russian.
Preparing the Request: Accuracy over Volume
A good request starts with one clear goal. Do not mix three different topics in one field: the tool may distribute attention unevenly, and part of the rule may remain uncovered. If you need to explain the difference between two tenses, simply write: "explain the difference between past simple and present perfect". If you need only one aspect, for example use of time markers, state it directly.
The audience field affects the complexity of formulations and the selection of examples. Formulations like "7th grade schoolchildren" and "adults, learning the language for work" will give different explanation tones and different vocabulary in the exercises. It is useful to add the native language of the audience if the explanation should rely on familiar constructions. But do not expect the tool to adapt to a specific textbook or program.
If you have your own error example, insert it into the first field. For example: "The student writes I have seen him yesterday". The tool may use this example as a starting point. However, do not attribute diagnosis to it: it does not analyze the level of knowledge and does not build an individual plan. It is a text generator based on your description, not a teacher.
Compare two requests. Weak: "English tenses". Strong: "explain when present perfect is used and when past simple is used, with examples for B1 level and typical errors of Russian speakers". The second will give a more structured answer.
What the Result Looks Like and How to Read It
On output you receive a connected text: rule explanation, examples, and a block of exercises with an answer key. The structure may vary from request to request. Sometimes the explanation occupies several paragraphs, sometimes it is compressed into a list. Exercises are most often sentences with blanks, multiple choice, or transformation tasks. The answer key goes in a separate block or at the end.
Read the result critically. Check whether all cases of the rule usage are covered, whether there are contradictions between the explanation and the key, whether examples correspond to the stated level. Particular attention should be paid to exceptions: models sometimes simplify the rule to a convenient, but incomplete scheme. If the key gives an answer without explanation, add an explanation yourself -- this will increase the material's value.
The result is convenient to use as a draft. Copy the text, break it into parts, remove the unnecessary, add your own examples. Since export is available only in TXT, further formatting remains your responsibility. Do not count on automatic saving: if you close the page, the result may disappear. Save the text immediately after generation.
Fragment of possible output: "Past simple describes a completed action at a specific moment in the past: I watched the film yesterday. Present perfect connects the past with the present: I have watched the film, so I know the plot". Below -- exercises and key.
Practical Scenario: Preparing a Lesson in Several Steps
Step one -- determine the topic and level. Write the topic in one sentence and add the audience level. Step two -- formulate the request in the first field, including key words and, if available, an error example. Step three -- choose the output language and press Generate. Step four -- read the explanation and mark places that need clarification. Step five -- check the exercises and key, correct inaccuracies. Step six -- save the text as TXT and adapt to your format.
Such an order saves time: you do not rewrite the rule from scratch, but edit a ready draft. If the result turned out too general, refine the request and generate again. If there are too few exercises, add a wish in the second field: "need 10 multiple-choice tasks". The tool does not guarantee an exact number of tasks, but the formulation helps set the direction.
For self-study the scenario is similar, but the role of the checker is taken by the learner themselves. First read the explanation, then do the exercises without looking at the key, and only then check. If answers diverge, return to the explanation and find the rule you applied incorrectly. This is a simple, but working cycle that does not require additional services.
Request: "Explain use of articles a, an, the for level A2, give 8 exercises on inserting missing article and key". Audience: "adult beginners, Russian-speaking".
Limitations and Typical Errors When Working with the Tool
The main limitation -- absence of checking. The tool does not know if you completed the exercises correctly and cannot evaluate your progress. The answer key is also created by the model, so errors are possible in it. Do not treat the key as an absolute truth: cross-check with an authoritative reference or textbook if the topic is complex.
A second feature -- absence of memory. Each request is processed separately. If you want to continue the topic, you will have to describe the context again. Third -- export limitations: only TXT, without formatting, tables, and embedded images. Fourth -- input volume limits. Too long a text must be shortened or split into several requests.
A typical error -- asking the tool to do what it does not do: check homework, assign a level, create an interactive test with auto-checking. Another error -- using the result without editing. The model may confuse terms, give a poor example, or give a key that does not match the task. Always leave time for manual verification.
If the key states "I have seen him yesterday", this is an error: present perfect does not combine with a specific time expression in the past. Correct to "I saw him yesterday".
How to Check the Quality of the Result
Checking starts with correspondence to the request. Return to your formulation and mark whether the rule is fully covered, whether examples correspond to the level, whether there is a key. Then check internal consistency: do examples contradict the explanation, do key answers match the tasks. After that evaluate the language: are there unnatural constructions, typos, style mixing?
It is useful to check exercises for unambiguity. A good task has one correct answer or clearly defined variability. If two variants are possible, but the key accepts only one, add an explanation. For multiple-choice tasks make sure distractors are incorrect but plausible. This is a sign of quality material.
Finally, check factual accuracy of the rule. Cross-check with a reference if in doubt. The tool may simplify, and that is normal for a draft, but in finished material simplification should not turn into an error. If the rule has exceptions, make sure they are mentioned or at least not denied.
Checklist: 1) topic covered; 2) level observed; 3) key matches tasks; 4) no ambiguous answers; 5) rule not distorted by oversimplification.
"Grammar practice" is a narrow but useful text tool for preparing a draft of explanation and exercises. It saves time on the routine part, but does not replace a teacher and does not check knowledge. Work by a simple cycle: precise request, generation, manual check, editing, saving as TXT. Consider limitations: no memory, no auto-check, export text-only, model answers may contain errors. With such an approach the tool becomes a convenient assistant, not a source of absolute truths.
Open tool: Grammar practice ↗Interface translations are machine-assisted and may need refinement.