Skip to content
BR AcademyFree course

Intro to DeFi: Swaps, Lending and Yield Without Getting Wrecked

Free intro to DeFi: wallets, swaps, liquidity pools, lending, yield, and how to avoid rug pulls. 20+ lessons, quizzes, certificate.

Beginner30 lessons5.47 hoursCertificate

About this course

You’ve heard about DeFi. You own crypto. But you’ve never swapped a token, provided liquidity, or lent your assets — and you’re not sure where to start.

This free course is your complete on-ramp to decentralized finance. In 20+ lessons, you’ll learn what DeFi is, how wallets and approvals work, how to swap tokens without losing money to slippage, how liquidity pools generate yield (and cost you via impermanent loss), how lending protocols work and when you risk liquidation, and how to spot rug pulls and exploits before they cost you.

Every lesson teaches one idea with a worked example, a hands-on exercise, and a takeaway you can use immediately. The capstone project asks you to design your first safe DeFi strategy — and you’ll earn a shareable certificate when you finish.

**Who this is for:**
– Crypto holders who understand blockchain but have never used DeFi
– Engineers, traders, and investors who want to understand DeFi mechanics before risking capital
– Anyone who wants to earn yield on their crypto without getting wrecked

**What you’ll be able to do:**
– Execute your first token swap and calculate slippage
– Provide liquidity and understand impermanent loss
– Lend crypto and avoid liquidation
– Spot rug pulls, exploits, and common scams
– Design a safe, profitable DeFi workflow

**After you finish:** You’ll have a certificate, a working knowledge of DeFi, and a clear path into our paid DeFi Finance Masterclass for advanced strategies, risk management, and portfolio construction.

What you will be able to do

  • Can explain what DeFi is, how it differs from centralized finance, and why it matters
  • Can set up a wallet, manage private keys, and approve smart contracts safely
  • Can execute a token swap on a decentralized exchange and calculate slippage impact
  • Can describe how liquidity pools work, calculate impermanent loss, and decide whether to provide liquidity
  • Can explain lending protocols, collateral ratios, liquidation mechanics, and how to avoid liquidation
  • Can identify rug pulls, exploits, and common DeFi scams before they cost you money
  • Can design and execute a safe first DeFi workflow (swap, lend, earn yield)
  • Can evaluate a new DeFi protocol for safety and opportunity cost

Curriculum 7 modules · 30 lessons

1Module 1: What Is DeFi and Why It Matters4 lessons
  1. What Is DeFi? 8 min
  2. DeFi vs. Centralized Finance: Trade-offs 10 min
  3. Money Legos: How DeFi Protocols Compose 9 min
  4. Why DeFi Matters (and Who It's For) 7 min
2Module 2: Wallets, Keys and Approvals5 lessons
  1. Types of Wallets: Self-Custody vs. Managed 10 min
  2. Private Keys, Seeds and Backups (the Right Way) 11 min
  3. Setting Up Your First Wallet Safely 12 min
  4. Smart Contract Approvals: What You're Signing 10 min
  5. Approval Risks and How to Revoke Them 9 min
3Module 3: Swaps and Slippage5 lessons
  1. How Decentralized Exchanges Work 11 min
  2. Market Orders, Limit Orders and Routing 10 min
  3. Slippage: What It Is and Why It Happens 10 min
  4. Calculating Slippage and Setting Limits 9 min
  5. Your First Swap: A Worked Example 12 min
4Module 4: Liquidity Pools and Yield5 lessons
  1. How Liquidity Pools Work 12 min
  2. Impermanent Loss: The Hidden Cost 13 min
  3. LP Math: When Yield Beats Impermanent Loss 11 min
  4. Where Yield Comes From (Fees, Incentives, Staking) 10 min
  5. Providing Liquidity: A Worked Example 12 min
5Module 5: Lending, Liquidation and Risk5 lessons
  1. How Lending Protocols Work 11 min
  2. Collateral Ratios and Liquidation Mechanics 12 min
  3. Avoiding Liquidation: Math and Monitoring 10 min
  4. Stablecoins: Collateral, Algorithms and Risks 11 min
  5. Your First Lending Position: A Worked Example 11 min
6Module 6: Risks, Scams and Safe Workflows5 lessons
  1. Rug Pulls: How to Spot Them 10 min
  2. Smart Contract Exploits and Audit Reports 10 min
  3. Common DeFi Scams and Red Flags 9 min
  4. A Safe First DeFi Workflow 10 min
  5. What to Learn Next (and Paid Courses to Deepen Your Skills) 8 min
7Module 7: Capstone Project1 lesson
  1. Build and Document Your First DeFi Strategy 30 min

Taught by Block Relations

Research & Education · Built for maya, a software engineer with crypto holdings but no DeFi experience. She understands blockchain basics and owns a wallet, but has never swapped a token, provided liquidity, or lent crypto. She needs to understand DeFi mechanics, risks, and best practices before risking real capital — and to know which paid courses will deepen her knowledge.

Contact us →