V17 · Full text alternative

Worked teacher demonstration for Day69, 'Find the step that went wrong'. Brief: Seven pretend kits cost $8 each and there is one $6 fee. A fictional learner writes '7 + 8 + 6 = 21, so the total is $21'. Number sentence: 7 × $8 + $6 = $62. Meaning: The error is treating seven kits as seven dollars. The seven repeated $8 costs total $56; add the one $6 fee to get $62. 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: Seven outlined kit-price cards labelled$8and one separate outlined$6fee. The supplied7+8+6=21sum is marked as numerically true but not the kit-story model. Correct labelled seven repeated costs total56; onefee6makes62. 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.