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Get Lirno

App tools

Homework scans that keep the whole question.

Capture the complete homework question and the details that determine its meaning. Check fractions, graphs and shared figures before asking Lirno to explain the task.

Get Lirno for iOSSee an example ↓

iPhone & iPad · Free to download

Prepare a readable photo, check the captured question and correct ambiguous symbols.

A blue and white camera beside a blank sheet and pencil

See the idea in action

A better photo starts a better conversation.

A fraction bar changes which terms belong together. This prepared case shows why checking the captured question matters.

App tools · WORKED EXAMPLE

A worksheet says 6/(x + 2) = 3, but the captured question reads 6/x + 2 = 3. What needs correcting?

ANSWERThe denominator is x + 2

Prepared example for learning.

  1. 1

    Read the fraction bar

    In the original, the fraction bar covers the entire expression x + 2. Keep that grouping visible in the photo.

  2. 2

    Notice the changed question

    6/x + 2 = 3 adds 2 after the division. It is a different equation from 6/(x + 2) = 3.

  3. 3

    Clarify before solving

    Retake the photo or explain: “The whole denominator is x + 2.” Check the question being discussed before following any working.

  4. 4

    Check the corrected result

    For x ≠ −2, multiply by x + 2: 6 = 3(x + 2), so x = 0. The original gives 6/(0 + 2) = 3. The misread equation would instead give x = 6.

Try it in Lirno

Your worksheet is a place to start.

Open Lirno and photograph the question you are working on. Include its instruction and any diagram, then ask about the part that stopped you.

Get Lirno for iOS

iPhone & iPad

Start here

Capture the task. Check the details. Ask.

  1. 01

    Capture or import

    Choose a clear photo or supported homework file in Lirno.

  2. 02

    Review the question

    Check the content and identify the task you want to work on.

  3. 03

    Continue with a purpose

    Ask for a hint, explanation, or review of your attempt.

Capture the context, not just the calculation

A complete homework photo includes the instruction and the information needed to answer it. Keep the fraction bar, exponent, diagram labels and units visible. For a graph, include both axes and the scale. A tightly cropped number may be readable while leaving the tutor without the relationship it belongs to.

Lirno can work with photographed homework and typed questions. Choose a single exercise when a page is crowded, or identify which question you want to discuss. Make the starting task clear before asking for a detailed response.

Make the original easy to read

Place the page flat in even light and hold the camera steady. Avoid a shadow over the equation or glare on printed text. If handwriting is faint, move closer while keeping all required information in the frame. A sharp, straightforward image is more useful than a decorative angle.

Look at the photo before continuing. Can you distinguish a minus sign from a dash, a decimal point from a mark on the page and one diagram label from another? If a symbol remains ambiguous, type a clarification beside your request.

Check a transcription that changes the problem

A fraction bar communicates grouping. The expression 1/(x + 2) differs from 1/x + 2: at x = 2 they give 1/4 and 5/2 respectively. A cropped or faint bar can therefore produce sensible working for the wrong expression. Powers and negative signs need the same attention.

If the photo is ambiguous, add a typed clarification such as “the denominator is the entire bracket x + 2.” Ask the tutor to restate the question before solving. For a graph, read back both axis labels and the interval; for a geometry diagram, confirm the right-angle and equal-side marks. Retake the photo when the missing detail cannot be supplied reliably.

Add the question your photo cannot show

A photo communicates the task, but your request explains the difficulty. Add “I do not know how to start,” “Explain why this formula applies,” or “Check the second line of my attempt.” Mention the method your teacher expects and whether you want a hint or a full explanation.

You can also include your working in the image. Ask for the first step that needs attention so you can repair the attempt rather than discard it. Continue with a follow-up at the exact point where the explanation stops making sense.

Keep a shared figure with the selected question

A worksheet can place its instruction on one page and the supporting figure on another. For “Use Figure 2 to compare the two trials,” the sentence alone is not a complete task. Include the figure, its legend and the quantities being compared. If other exercises use the same figure, identify the question you want discussed rather than leaving the tutor to choose.

For a graph, a photo of the plotted line without the axes cannot establish which measurement the line represents. Keep the labels, units, tick values and relevant interval. For a table, include the column headings and any footnote defining the conditions. Supply the missing context or retake the image before requesting more detailed working.

Choose between retaking the photo and clarifying a symbol

Retake when an essential part is absent or unreadable: a cropped diagram, a hidden denominator or a missing instruction. A typed clarification is useful when you can reliably identify one ambiguous detail, such as “the exponent is 2” or “the whole denominator is x + 2.” Do not guess a value simply to complete the input.

A final input check is to restate the task in one sentence. For example: “Find the missing leg of a right triangle with hypotenuse 13 cm and one leg 5 cm.” If the conversation instead treats both lengths as legs, correct that role before using Pythagoras. Clear labels prevent a valid method from answering a different question.

Your next small win

Check what the photo actually gives you.

A readable photo can still omit the condition that determines the method. Inspect the image as if you had never seen the worksheet. The question should remain understandable without relying on what you remember outside the frame.

Prepared mini exercise

Your photo shows a triangle and two side lengths, but crops out the instruction and the right-angle mark. Is that enough to choose the method?

Give me a hint

Think about what establishes the theorem condition and what tells you which quantity to find. A shape that looks like a right triangle is not sufficient evidence.

Show the reasoning

Retake or expand the photo so the instruction and relevant markings are visible. Then identify the exercise and the help you need. If a symbol is still ambiguous, type a clarification and check the question being discussed against the original.

Make it yours

Carry the idea into your own homework.

Before opening Lirno, check one homework image for its instruction, supporting figure, units and small symbols. Add your attempt when it helps show where your reasoning stopped. One complete exercise is a useful starting point.

Adapt a question for Lirno →

Catch it before it trips you up

Three small details.
A stronger attempt.

Inspect the part of the method that this exercise actually tests. These are the three errors to check first.

01

Cropping too closely

Keep the conditions and task verb with the calculation. For graphs, include axes and scales; for a passage, include the part needed to discuss your interpretation.

02

Trusting a misread symbol

A faint minus, exponent or fraction bar can change the question. Compare the captured problem with the original before investigating an unexpected answer. Correct the input first.

03

Sending a page without a purpose

Name the question number and the help you want. A photo supplies the task; “give me one hint about the setup” supplies the point of the conversation.

Try a different case

Same idea.
A new decision.

Make an attempt before opening the explanation. These original tasks test a different part of the method, so a familiar answer alone will not be enough.

01

Make a fraction unambiguous

A worksheet shows 1/(x − 2), but the transcription reads 1/x − 2. At x = 4, would these give the same value?

Compare your reasoning

The original gives 1/(4 − 2) = 1/2. The other expression gives 1/4 − 2 = −7/4.

They differ. Retake the image with the whole fraction bar visible or type parentheses around the denominator. Check the corrected question before discussing its solution.

Keep this clue: A clear denominator is part of the question, not a cosmetic formatting choice.

02

Keep the graph scale

A crop includes a plotted line but omits both axes. You remember that the original was a speed–time graph. What should the new photo include?

Compare your reasoning

Include the graph, both axis labels, units, tick values and the instruction. Add a visible legend if there is more than one line.

The same line shape can mean different things with different quantities or scales. Your memory of the worksheet does not give the captured image that information.

Keep this clue: Capture enough context that the question can be understood from the image itself.

Ask a better question

A prompt you
can make your own.

Paste this into Lirno with your assignment. Add your attempt and say where you need help.

Here is my worksheet. Focus on question 3. I understand the formula but do not know which value belongs in the denominator. Give me one hint.

Quick quality check

Is the question ready for a useful explanation?

  • The complete instruction is in view
  • Symbols, units and diagram labels are readable
  • The captured question matches the original
  • Your request names the help you need

FAQs

Questions about Homework scanner

Can Lirno scan handwritten questions?

Clear handwriting can be used in a homework photo. Review difficult symbols and type any part that was not captured reliably.

Can I bring in a PDF worksheet?

Lirno supports homework PDFs as well as photos. Check the relevant page and question before continuing.

Is scanning available on this website?

The scanner is in the Lirno iPhone and iPad app. HomeworkPath contains prepared examples and guidance.

Can I ask for a hint after scanning?

Yes. Once the captured question matches your worksheet, ask for one hint or an explanation of the step where you got stuck. Include your attempt so the tutor can focus on that decision.

Published by Rocket Digital Limited for HomeworkPath. How these guides are prepared →

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Get Lirno for iOS

iPhone & iPad · Free to download