Test whether learning transfers

I will give [LESSON MATERIAL] and [LEARNER LEVEL]. Extract the central skill, then teach it in a short example with every step visible. Create three transfer problems: familiar context, changed surface details and unfamiliar domain. Supply a hint ladder for each that nudges without revealing the answer, then a marking guide explaining which errors signal a conceptual gap. Return the lesson, problems, hints and answers in separate sections. Do not assume performance from the prompt alone; specify what learner responses would count as evidence of understanding.