lesson

Images need purpose and permission

1 · Learn

An image can explain information or decorate a page. Informative images need an appropriate text alternative so their essential meaning is available without seeing them. Decorative images should not add distracting repeated descriptions.

Use original or permitted media and record required credits. Text should remain readable against its background, and meaning should not depend on colour alone. These checks support accessibility but do not prove a page meets every requirement.

Image purposeText alternativePermissionReadable contrast
Key words and supplied examples.

2 · Worked example

For a diagram showing three stages of a process, I provide text describing those stages. 'Nice picture' would not convey its information.

3 · Your turn

A chart marks success only in green and failure only in red. What extra information would help?

Check your answer

Clear words, symbols or patterns identifying the categories, so colour is not the only distinction.

4 · Apply your learning

Review a sample page with images disabled and in a narrow window; note information that becomes unclear.

Adult guidance and safety

Use a school-approved offline or supervised tool and fictional data. Keep work private, respect media permissions and check accessibility. Paper traces support understanding but do not replace running, saving and testing a real project. Do not enter passwords, addresses or other personal details into exercises.

Open your writing and drawing pad

Write, draw or show your working. Use a mouse, pen or finger. This pad is not a submitted answer.

Not saved to your account. Download your drawing as PNG and your typed notes as TXT before leaving or refreshing. They are separate files. Do not enter private information.

Open a picture saved on this device to draw on it again. Opening replaces the drawing, but Undo can restore it. PNG only, up to 4 MB and 4096 × 4096 pixels. The picture stays in this browser; it is not uploaded. Paper lines in a saved picture become part of that picture.

Drawing is unavailable. Use the typed working area below.

Your pad is empty.

Open a UTF-8 TXT file from this device, up to 40 KB and 10,000 characters. It stays in this browser. Opening can be undone until you type again. Downloads keep a new copy; they do not change the file you opened.

Typed notes are not submitted answers.

Check a calculation · Year 5 onward

Use this only when your teacher or adult allows a calculator for the task. Show your thinking first. It does not replace mental or written arithmetic and does not mark your lesson answer.

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