BetterDev Learn
Web3BeginnerCertificate

Web3 Fundamentals

A clear, builder-first foundation for Web3. Learn how blockchains work, how wallets and contracts interact, and how to reason about decentralized applications without speculative noise.

10 hours28 lessons4.8 (1102)Instructor: Jordan Mensah

What you'll learn

  • Explain blockchain concepts with precision
  • Use wallets and interact with on-chain contracts safely
  • Read and reason about smart contract basics
  • Prototype a simple dApp interaction flow

Course curriculum

Expandable modules with practical lessons.

  • Why decentralization matters for builders13m
  • Blocks, consensus, and finality18m
  • Accounts, keys, and wallets16m

Practical project

Final Project: Build a DeFi dashboard interaction

Create a simple on-chain readout and interaction flow that demonstrates wallets, reads, and a safe write path.

Certification

Earn a BetterDev Learn Certificate

After successfully completing the course requirements—including lessons, assessments, and the practical project—you receive a verifiable credential.

JM

Jordan Mensah

Web3 Protocol Engineer

Smart ContractsSolidityDeFi Architecture

Jordan has shipped on-chain products across L1 and L2 ecosystems. He teaches Web3 from first principles with a strong security mindset.

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