Green Works

StudentChoose a design brief, predict failure modes, test the prototype, then explain tradeoffs and revise against constraints.

TeacherLook for constraint reasoning, evidence-backed iteration, failure analysis, and transfer to a new design context.

GREEN WORKS3-5 coreschoolyard runoff brief

yard system

fellsoakedhelddooredge

balance line: no box called away

THE YARD · DOWNPIPE · your call

RUN RECORD

nothing run yet

Missions

Invariant witness

the ledgerno row all zeros

the lifecyclemake + use + end = total

the leverscount × per unit = total

Nothing is free and everything is counted.

0 events

Ledgers, lifecycles, and levers

Every option prints a four-column ledger with no cell blank. Every product prints its life in three phases. A two-lever board prints count times per-unit as the total, live. Commit a prediction before every run.

Ledgers, lifecycles, and levers

Choose a mission to open its prediction gate.

PredictTestExplainReviseDefendTransfer0/5 evidence steps

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Engineering path

Green Works

StudentChoose a design brief, predict failure modes, test the prototype, then explain tradeoffs and revise against constraints.

TeacherLook for constraint reasoning, evidence-backed iteration, failure analysis, and transfer to a new design context.

GREEN WORKS3-5 coreschoolyard runoff brief

yard system

fellsoakedhelddooredge

balance line: no box called away

THE YARD · DOWNPIPE · your call

RUN RECORD

nothing run yet

Missions

Invariant witness

the ledgerno row all zeros

the lifecyclemake + use + end = total

the leverscount × per unit = total

Nothing is free and everything is counted.

0 events

Ledgers, lifecycles, and levers

Choose a mission to open its prediction gate.

PredictTestExplainReviseDefendTransfer0/5 evidence steps

Green Works

RUN RECORD

GreenWorks

Ledgers, lifecycles, and levers

Ledgers, lifecycles, and levers

Green Works

RUN RECORD

GreenWorks

Ledgers, lifecycles, and levers

Ledgers, lifecycles, and levers