Here is some high-level thinking when learning English.

1. IELTS Speaking

1.1. Answer Question

1.2. Idea

1.3. Implement User Flow

1.4. Implement Multiple Groups Flow

2. Algorithm Thinking

2.1. Implement

2.2. Design

2.3. Approach

3. IELTS Writing

3.1. Build a Sentence

3.2. Sentence Type

3.3. Flow Idea

3.4. Paraphrasing

3.5. Problems & Solutions

3.6. Causes & Effects

3.7. Advantages & Disadvantages

3.8. Agree - Disagree

3.9. Graph with Trend

3.10. Graph without Trend

4. High-Level Payment System Design

5. High-Level Product Company

6. High-Level Booking System

7. High-Level Digital Wallet System