給中學生講明白期貨的塗鴉卡

Explain the concept of futures contracts to middle schoolers through a set of 16:9 doodle-style images — consistent chunky, hand-pencil texture across every card, richly packed with information, English captions, solid-color backgrounds, an outline framing each card, and matching titles so the whole set reads like slides from one deck.

用一組16:9塗鴉風格的圖片,給中學生講清楚期貨合約這個概念——每張卡片都保持一致的粗鉛筆手繪質感,資訊量要足,配英文文字說明,純色背景,每張卡片都加邊框,標題格式統一,整套看起來像同一份幻燈片裡的連續頁面。