The circular flow diagram says “businesses” as if they’re all the same animal. They’re not — and the difference starts with one question that stops a Year 7 room cold: who owns BHP? The answer (millions of people, possibly including their own families through super) opens a lesson where students climb Joan’s ladder from sole trader to listed company, place real WA businesses on a standing spectrum with quoted evidence — and then launch the unit’s summative: the Supply Chain Map.
Harvest the Lesson 4 seed — the mine, the store, the one-ute outfit — then ask it: who owns BHP? Guesses lock before the reveal: not one tycoon but millions of shareholders, super funds included.
One business climbs all four rungs while students fill the ladder table: sole trader Joan (owns all, decides alone, risks everything personally) → partnership with her brother → Marla Creek Minerals Pty Ltd with two private investors (its own legal thing; shares exist but are NOT for public sale) → listed on the exchange, where anyone can buy in and managers run the day-to-day.
Four corners become four rungs. Teams place ten business cards — BHP, Rio Tinto, Fortescue and Wesfarmers are real and verifiable; the small ones are scenario businesses with tell-tale clues — and defend placements under challenge, quoting the card as the only admissible evidence. Then the Assessment Pack lands: six requirements walked aloud, rubric row by row, and the skeleton plan gates the devices — five stages, a job and an owner-type per stage, on paper first.
Pty-Ltd-versus-listed in a sentence a parent would understand; Joan’s trade explained — own less of something bigger; due date and research plan captured. The map completes across your following sessions with the rubric visible every time it’s open.