Course Content
Module 1: Blockchain Foundations
🎯 Learning Objectives: Grasp the fundamental concepts of blockchain technology. Understand the importance and impact of decentralization. Explore real-world applications across various industries. Debunk common myths and misconceptions about blockchain.
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Lesson 1: What is Blockchain?
Lesson 2: Core Components of Blockchain
Lesson 3: Real-World Applications of Blockchain
Lesson 4: Common Myths and Misconceptions
Module 2: How Blockchain Works
🎯 Objective: Understand the inner mechanics of blockchain—how blocks are structured, how hashing works, how consensus is achieved, and how everything ties together. 📘 Module Structure: Lesson 1: Blocks, Chains, and Nodes Lesson 2: Cryptographic Hashing Lesson 3: Mining and Proof-of-Work Lesson 4: Public vs. Private Blockchains
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Lesson 1: Blocks, Chains, and Nodes
Lesson 2: Cryptographic Hashing
Lesson 3: Mining and Proof-of-Work
Lesson 4: Public vs. Private Blockchains
Module 3: Setting Up Your Dev Environment
🎯 Objective: Install and configure essential blockchain coding, testing, and deployment development tools. 📘 Module Structure: Lesson 1: Overview of Tools & Platforms Lesson 2: Installing Node.js, Ganache, and MetaMask Lesson 3: Introduction to Solidity and Remix IDE
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Lesson 1: Overview of Tools & Platforms
Lesson 2: Installation Steps
Lesson 3: Intro to Solidity & Remix
Module 4: Building Your First Blockchain
🎯 Objective: Understand blockchain architecture by building a simple blockchain from scratch using JavaScript. 📘 Module Structure: Lesson 1: Create a Basic Blockchain in JavaScript Lesson 2: Add Transactions and Mine New Blocks Lesson 3: Build a Simple Consensus Algorithm
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Lesson 1: Create a Basic Blockchain in JavaScript
Lesson 2: Add Transactions & Mining Logic
Lesson 3: Build a Simple Consensus Algorithm
Module 5: Smart Contracts Deep Dive
🎯 Objective: Understand smart contracts, write your first one in Solidity, and deploy it to a test blockchain. 📘 Module Structure: Lesson 1: What Are Smart Contracts? Lesson 2: Writing Your First Contract in Solidity Lesson 3: Deploying to a Test Network
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Lesson 1: What Are Smart Contracts?
Lesson 2: Writing Your First Contract in Solidity
Lesson 3: Deploying to a Test Network
Module 6: Real Projects with Smart Contracts
🎯 Objective: Create functional smart contract-based applications, including tokens, voting systems, and crowdfunding platforms. 📘 Module Structure: Lesson 1: Build an ERC-20 Token Lesson 2: Create a Voting DApp Lesson 3: Launch a Crowdfunding Contract
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Lesson 1: Build an ERC-20 Token
Lesson 2: Create a Voting DApp
Lesson 3: Launch a Crowdfunding Contract
Module 7: Integrating with Frontends
🎯 Objective: Learn how to interact with smart contracts from a web interface using JavaScript, HTML, and MetaMask. 📘 Module Structure: Lesson 1: Web3.js and Connecting to Contracts Lesson 2: Front-End Integration with HTML/JavaScript Lesson 3: Handling Wallets and MetaMask
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Lesson 1: Web3.js and Connecting to Contracts
Lesson 2: Front-End Integration (HTML/JS)
Lesson 3: Wallet Integration with MetaMask
Module 8: Security, Scaling & Future Trends
🎯 Objective: Learn how to secure smart contracts, understand scalability solutions, and stay ahead with emerging blockchain trends. 📘 Module Structure: Lesson 1: Common Smart Contract Vulnerabilities Lesson 2: Gas Optimization and Layer 2 Scaling Lesson 3: NFTs, DAOs, and the Future of Web3
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Lesson 1: Common Smart Contract Vulnerabilities
Lesson 2: Gas Optimization & Layer 2s
Lesson 3: NFTs, DAOs & Web3 Trends
Beginner’s Guide To Blockchain And Web3

⛽ What is Gas?
Fee to execute operations on Ethereum

More complexity = more gas

Tips to Reduce Gas Costs:
Store less data on-chain

Use uint256 over smaller types

Use structs efficiently

🔝 Layer 2 Scaling Solutions:
Solution
Type
Benefit
Optimism
Rollup
Reduces gas costs by batching
Arbitrum
Rollup
High throughput & EVM-compatible
Polygon
Sidechain
Fast & cheap, widely used

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