V19 · Full text alternative

Worked teacher demonstration for Day70, 'Send a plan someone can actually use'. Brief: A fictional club needs exactly 30 blank activity cards. Offer A sells six cards for $12; B sells ten for $25. There is one $8 setup fee and an $80 budget. Buy whole packs and no extra cards. Number sentence: A: 5 × $12 + $8 = $68; B: 3 × $25 + $8 = $83. Meaning: A provides exactly 30 cards and leaves $12. B provides 30 but exceeds the budget by $3. Choose A for these supplied constraints. This provided teacher example contains no learner work, real price or real transport capacity. The complete labelled model must preserve these quantities.

Actual original source candidate geometry: Two separate counted pack models: fiveAboxes of6circles and threeBboxes of10circles,30cards each. Plain labels state12/25dollarsperpack,the one8dollarfee,budget80,and fullcosts68/83. A leaves12; B is3over. No real price or transaction is claimed. No external imagery, logo, cultural design, learner work or actual observed result is included. Original vector and PNG are locally generated; different art/native/print/classroom review remains pending.