Terms of use

1

Copyright

Everything on this site — the animations, the figures, the written solutions, the step-by-step commentary, the code that draws them, the page design and the uploaded papers — is made by Kreative Education Center and belongs to it.

Apart from what these terms expressly allow, none of it may be copied, published, adapted or reused in any form without written permission.

2

What a subscription allows

A subscription gives one named student a personal, non-transferable, non-exclusive right to view the content for their own study, for as long as the subscription runs.

A student may print a page or copy a worked solution into a notebook for revising from. That copy is for them, not for passing on.

3

What it does not allow

• Sharing an account, or giving the password to anyone else.
• Downloading, scraping or copying the content in bulk, by hand or with any program, script or automated tool.
• Recording, streaming or screen-sharing the site, or distributing screenshots of it.
• Re-posting any of it to another website, a social platform, a cloud drive or a messaging group.
• Using any of it for teaching, tutoring, publishing or any other commercial purpose.
• Reverse-engineering the site, or working around any access control in it.
• Removing, hiding or altering a copyright notice or an account mark.

4

One account, one device

An account belongs to one student and may be signed in on one device at a time. Signing in somewhere else ends the earlier session.

5

Every page carries a mark

• Every page and every file this site serves carries a copyright notice and a code that identifies the account it was served to. The code is printed on the page and embedded in the files.
• If this content appears anywhere else, that code says which account it came from.
• Removing or altering that mark is not only a breach of these terms. Interfering with rights management information is an offence in its own right under s.274 of the Copyright Ordinance (Cap. 528).

6

Automatic limits

The site records which lesson files each account opens. An account reading far faster or far wider than a person studying is paused automatically and the teacher is told.

A pause never touches homework, papers or the account page, and the teacher can lift it at once if it was a mistake.

7

If these terms are broken

Kreative Education Center may suspend or close an account that breaches these terms, without notice and without refunding the fees already paid, and may recover its losses and take legal action.

8

Examination questions

HKDSE and HKCEE questions discussed on this site are the copyright of the Hong Kong Examinations and Assessment Authority and appear here only as the subject of teaching commentary. Kreative Education Center claims no copyright in them and does not permit their onward copying.

9

What is recorded

To support teaching and to protect the content, the site records sign-in times, the device and IP address used, which animations were watched and how far, and which lesson files were opened. These records are seen by the teacher only.

10

Changes

These terms may be revised from time to time. A revision takes effect when it is published on this page.