🚦 Explorers: Must and Mustn't

A fully interactive A2.1 Kids grammar lesson that teaches rules with must and mustn't. Students warm up with four questions about rules, then study three language blocks: Must — It's Important (subject + must + base verb, the never-takes-s reminder), Mustn't — It's Not Allowed (subject + mustn't + base verb, mustn't = must not), and a Rules in Real Places table linking places to their rules. Ten rule words (rule, must, mustn't, quiet, careful, safe, dangerous, helmet, litter, hurt) appear in a scrollable table and six review flashcards. The reading is a magazine-style Rules File in which the Adventure Camp guide gives Team Compass their safety rules, showing must and mustn't in natural context with hover tooltips. Practice offers eight contextualised fill-in-the-blank items (must, mustn't, base verbs and lesson words) with live feedback and a score. Speaking runs a rule-making role-play with five prompts and a six-line model dialogue; writing is a guided 25-45 word set of place rules with a four-point checklist and live word counter with auto-save; and an eight-question quiz mixes must/mustn't grammar with two reading-comprehension questions, with per-question explanations, a result circle and localStorage persistence.