A3.1 Science in occupations and trades
Example
Name what each worker has to know and the problem it solves: a field biologist, an electrician.
- Field biologist: when the animals call, where they breed, and how a single visit can miss them — so a count is trusted.
- Electrician: which materials stop current from passing and which let it through — so a repair is safe.
Example
Name what an aircraft loadmaster has to know and the problem it solves.
- Loadmaster: how weight placed forward or aft changes the way the plane balances and lifts — so it flies level.
A3.2 Science with other subjects
Example
Plan a schoolyard bird count using science, math, geography and language.
- Science: which species to expect and how to tell them apart.
- Math: tallies, averages across weeks, a bar graph. Geography: a map of where each species was seen.
- Language: a report to the naturalist club, with the method so others can repeat it.
A3.3 Contributions from communities around the world
Science and technology are a world inheritance. The kite was flown in China; movable-type printing was developed in China and Korea; zero as a number came from India; Arab seafarers spread the lateen sail; Rome built gravity aqueducts. Quinine, drawn from cinchona bark, is a medicine whose use Quechua communities in the Andes taught the world.
Example
Explain the science in hillside terraces.
- Terraces, built in the Andes, Asia and the Philippine cordillera: level steps hold soil and water on a slope, so rain soaks in instead of washing the soil away.
Example
Explain the science in a gravity aqueduct.
- Aqueduct: a channel that drops a little over every stretch, so water flows to the city with no pump.
- People worked things out by observing and testing, and handed them on across generations.
Summary
- Trades depend on knowing when, which and how.
- Subjects combine in a count.
- Kites, printing, zero, sails, aqueducts, quinine, terraces — worked out and handed on.