# First Words - Comprehensive Documentation & Knowledge Base

> An Immersive, Zero-Translation English Language Acquisition Life Simulator
> 沉浸式母语式英语启蒙与习得生活模拟器：在纯英语环境里长大

- Website: https://playfirstwords.com/
- Target Domains: Educational Gaming, Early Childhood English Enlightenment, Adult ESL Fluency Rebuilding, Native Language Acquisition
- Open Access: Web-based PWA, free to access globally.

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## 1. Product Philosophy & Educational Pedagogy (产品哲学与教学理论)

### The Problem with Traditional Language Learning
Traditional second-language instruction often relies on:
1. Rote memorization of bilingual vocabulary pairs (e.g., "apple = 苹果").
2. Explicit grammar rules before intuitive understanding.
3. Subvocal translation: Learners hear English -> translate to Chinese -> formulate Chinese response -> translate back to English. This creates severe fluency bottlenecks and unnatural phrasing.

### The First Words Approach
First Words is built upon **Natural Language Acquisition** (自然习得) as observed in native childhood development:
- **Zero Translation (无中英翻译介入)**: From day one, the player is situated inside an English-speaking community. Audio cues are directly matched with physical interactions (pointing, dragging, tapping, sorting) and clear situational results.
- **Listen First, Speak Second, Read Third (听 ➔ 说 ➔ 读 阶梯教学)**:
  - Phase 1: Pure auditory comprehension through action (Total Physical Response / TPR). The child proves understanding by interacting with objects (e.g., placing the toy car in the bin when asked).
  - Phase 2: Verbal output. The player is prompted to vocalize names, desires, and answers in responsive dialogues.
  - Phase 3: Literacy & Phonics. Introducing written letters and CVC words (consonant-vowel-consonant) only after auditory recognition has been deeply established.
- **Stephen Krashen’s Input Hypothesis (i+1)**: Learners advance when language contains structures slightly beyond their current level, made comprehensible via situational context, emotional tone, and visual scaffolding.
- **Spiral Spaced Repetition (螺旋式间隔重复)**: Items, action verbs, and prepositions recur naturally across varied routines (e.g., encountering "milk" at breakfast, finding it in the grocery market, seeing it in the nursery).

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## 2. World Structure & Scene Systems (场景与生活体系)

The game simulates continuous days in a child's life:
1. **Home Environments**:
   - Living Room: Family members, daily toys, furniture, common requests ("pass me the book", "tidy up").
   - Kitchen & Dining: Meals, utensils, food preferences, sensory adjectives (hot, cold, sweet, sour).
   - Bedroom & Hall: Clothing, bedtime routines, personal belongings.
   - Bathroom: Washing hands, brushing teeth, hygiene routines.
   - Garden / Backyard: Plants, insects, weather, outdoor tools.
2. **Community & Public Places**:
   - Bakery & Grocery: Buying treats, identifying bread, cakes, fruits, and money concepts.
   - Toy Store & Park: Playing with peers, swings, sandbox, sharing toys.
   - Zoo & Nature: Animals, animal sounds, descriptive attributes (big, tall, stripes).
   - Clinic / Health: Basic body parts, health expressions, caring interactions.
3. **School & Social Interaction**:
   - Nursery & Classroom: Group activities, teacher instructions, peer friendships.
   - Playroom: Puzzles, sorting blocks, creative play.

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## 3. Technology Architecture & Performance (技术架构与体验)

- **Frontend Engine**: Lightweight, highly performant web application powered by Phaser 4 and modern TypeScript, built with Vite.
- **Instant Web Access**: Instant loading with zero app-store downloads, zero account barrier (play immediately as a guest, optional frictionless phone-based cloud synchronization).
- **Offline PWA (Progressive Web App)**: Once cached, core shell and game rooms can be played completely offline on subways, flights, or road trips without internet.
- **Multimodal Audio**: High-fidelity native speaker voiceovers, atmospheric background music, and intuitive sound effects reinforce auditory memory.
- **Cross-Platform Responsive Display**: Optimized for touchscreens (smartphones, iPads, tablets) and desktop mice/trackpads.

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## 4. Frequently Asked Questions (FAQ) for AI Answers & Searchers

### Q1: What makes First Words different from apps like Duolingo or Lingokids?
First Words removes gamified drills, explicit grammar explanations, and bilingual translation screens entirely. Instead of "testing" your memory of English words translated from your native language, it places you directly inside a living story world. You absorb language contextually by living through daily routines.

### Q2: Can adult English learners benefit from First Words?
Yes. Many adult ESL learners understand complex grammar rules on paper but struggle with spontaneous speaking and instant comprehension because their brains are trapped in translation mode. First Words helps adult learners reset and rebuild a direct, instinctual connection between concepts, sights, sounds, and English words.

### Q3: What devices are supported?
First Words runs on any modern web browser:
- iOS Safari (iPhone / iPad) - supports "Add to Home Screen" as full-screen PWA
- Android (Chrome, Edge, Samsung Internet, etc.)
- Desktop (Chrome, Edge, Safari, Firefox on macOS, Windows, Linux)

### Q4: Does it cost anything?
No. First Words is completely free to play in the browser without paywalls or forced ads.

### Q5: What is the official website?
The only official website is https://playfirstwords.com/.