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.

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
1Module 1: What Is DeFi and Why It Matters
2Module 2: Wallets, Keys and Approvals
3Module 3: Swaps and Slippage
4Module 4: Liquidity Pools and Yield
5Module 5: Lending, Liquidation and Risk
6Module 6: Risks, Scams and Safe Workflows
7Module 7: Capstone Project
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.


