Vanguard IELTS

A1 to C1 Academic IELTS Preparation & SRS Platform

React 19TypeScriptViteTailwindCSSWeb Speech APISRS EngineCanvas Confetti

GitHub Repository Live Platform

↳ 4-skill IELTS preparation + Spaced Repetition (SRS) + Shadowing Studio + Web Speech API

Engineering Scope

Problem & System Purpose

Interactive, comprehensive IELTS academic preparation web platform covering CEFR A1 to C1 proficiency levels. Features all 4 official IELTS skill modules (Listening, Reading, Writing, Speaking), Shadowing Studio with native Web Speech synthesis, SuperMemo-inspired Spaced Repetition (SRS) academic vocabulary engine, step-by-step Daily Adventure progression map, Mistake Bank for targeted error recovery, and Paraphrase Studio.

Specification4-Skill Comprehensive Coverage

SpecificationCEFR A1–C1 Level Progression

SpecificationSuperMemo-Inspired SRS Retention

Architecture Blueprint

Client-side modular SPA built with React 19, TypeScript, and Tailwind CSS v4, combining browser-native Web Speech API audio modeling with an automated SuperMemo-inspired Spaced Repetition retention engine.

Execution Data Pipeline

01.Diagnostic CEFR Placement Assessment (A1 to C1 Calibration)

02.Daily Adventure Progression & Interactive Quest Planner

03.4-Skill Academic Labs (Listening Audio, Reading Passages, Writing Tasks, Speaking Prompts)

04.Shadowing Speech Engine & SRS Retention Memory Review Queue

Subsystem Decomposition

4-Skill IELTS Lab Suite

Interactive drills for Listening audio checkpoints, timed Reading simulations, Task 1/2 Writing prompts, and Speaking parts.

Spaced Repetition & Mistake Bank

SuperMemo-inspired algorithm calculating review intervals with automated mistake tracking for focused remediation.

Shadowing Studio & Speech Engine

Browser-native Web Speech API implementation for speech synthesis, pronunciation modeling, and conversational shadowing.

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