This bundle turns the hardest early-unit Econ skill — marginal thinking — into something students can actually understand and apply. Instead of memorizing definitions, they learn how real people compare marginal benefit and marginal cost, how incentives shift behavior, why diminishing marginal utility matters, and how to classify choices as rational, irrational, or dependent on context. Every resource works together, building a complete, visual, high-engagement Unit 2 for Economics. What’s Incl