Task reminder: After the recording, you have 40 seconds to re-tell the lecture in your own words. Mention the topic, key points, and any examples. Speak continuously — pausing loses marks.

1. Re-tell Lecture: Sample 1 — The Marshmallow Test

A classic psychology experiment in which children were offered one marshmallow immediately or two if they could wait fifteen minutes. Follow-up studies initially claimed that children who delayed gratification achieved better life outcomes. Later research questioned whether the effect was driven by willpower or by the children's prior experience of adults keeping promises — a reflection of socioeconomic stability rather than self-control alone.

Sample Notes

2. Re-tell Lecture: Sample 2 — Tidal Energy

An overview of how ocean tides generated by gravitational forces from the Moon and Sun can be harnessed to produce predictable, low-carbon electricity. The lecture covers tidal barrage and tidal stream technologies, their advantages over intermittent solar and wind power, and the barriers to wider deployment including high construction costs and limited suitable sites.

Sample Notes

3. Re-tell Lecture: Sample 3 — The History of the Internet

A lecture tracing the origins of the internet from ARPANET, a US Defence Department network created in the 1960s, through its commercialisation in the 1990s, to its current role as global infrastructure. The speaker examines how the original decentralised, open architecture of the internet contrasts with the centralisation of power in a small number of technology platforms today.

Sample Notes