EXPLAINSTEM · DEMO · 18 OCTOBER 2026

Preview terms

These terms cover the free ExplainSTEM demo. Paid-service terms will be provided before any subscriptions are offered.

About this preview

ExplainSTEM is an educational project run by Alex. The preview contains three GCSE Maths videos and three original sample practice questions. It is free to use, with no accounts, purchases or subscriptions.

Using the material

You may watch the videos and use the questions for personal study. Teachers and tutors may show the preview in lessons. Please link to ExplainSTEM rather than re-uploading, selling or presenting its material as your own. Other uses can be discussed through the contact section.

Educational support

The material is for learning and revision. It does not provide personalised tuition or guarantee exam results. Check the relevant exam-board specification for topic coverage. If you find an error, please report the lesson and timestamp so it can be checked.

Requests and feedback

The feedback form sends your answers to a private Google Sheet using a protected service. See the privacy notice for how information is handled. Feedback does not create a promise to produce a lesson or a reply within a particular time.

Changes and future services

The preview may change while it is developed. Any future paid offer will explain its price, content, cancellation arrangements and applicable terms before payment. These preview terms do not restrict rights that cannot lawfully be excluded.

Sound credits

Correct-answer audio: notification_simple-01 from Google Material product sounds, by Google, licensed under CC BY 4.0. Audio converted to WAV and volume adjusted. Source collection and attribution.

Incorrect-answer audio: UI Sounds by HaelDB, source collection, licensed CC0. Trimmed to the first two beeps and volume adjusted.

Contact

Contact ExplainSTEM at hello@explainstem.com.