In this course you will learn everything you need to know about Ethereum's Layer-2 networks on which you can use Ethereum applications in an environment where transaction fees are much lower.

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In this first lesson we teach you how to use Arbitrum a Layer-2 solution which is gaining in popularity.

In the tutorial we show:

We show:

- How to bridge assets from Ethereum into Arbitrum + tips to save on fees
- How to create your Arbitrum wallet in Metamask
- How to find and add tokens on Arbitrum to your Metamask
- How to earn 60% on stablecoins using MIM and Curve
- How to find new yield farms on Adamant
- How to fast exit using Hop.exchange and send to other Layer2's

### Resources
-[How Optimistic Rollups work (Video)](https://www.youtube.com/watch?v=7pWxCklcNsU&t=505s)
- [Abracadabra](https://abracadabra.money/)
- [Adamant](https://adamant.finance)
- [Curve on Arbitrum](https://arbitrum.curve.fi/)
- [Hop Bridge for Fast Exits](https://hop.exchange/)


In this first lesson we teach you how to use Arbitrum a Layer-2 solution which is gaining in popularity.



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In this first lesson we teach you how to use Arbitrum a Layer-2 solution which is gaining in popularity.

How to use Arbitrum and What to Do

How to use Ethereum Layer-2 Solutions | Cryptotesters Academy 

How to Master Layer-2

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Ethereum

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Yield Farming

This course introduces the newest applications in the DeFi space and explains in simple terms how they work.

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In this lesson we explore [Hop](https://app.hop.exchange), a protocol allowing users to send assets instantly between networks. Today Hop supports sending tokens between Ethereum, xDAI and Polygon but in the very near future they will support Optimism, Arbitrum and other relevant scaling solutions.

In this tutorial we explore:

- How does Hop work?
- How to send assets across different networks using Hop?
- How to become a liquidity provider on Hop to earn trading fees
- How to Profit from Arbitrage opportunities

Have fun trying it out!

In this lesson we explore Hop, a protocol allowing users to send assets instantly between networks.

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What is Hop and How do I use it | Cryptotesters Academy

How to use Hop Protocol

DeFi Radar - Meet the Newest & Hottest Projects in the DeFi Space

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DeFi Deep Dive: Discover Projects

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DeFi

This course will teach you everything you need to know to embark on your DeFi adventure. Setting-up your Ethereum wallet, making your first trade on a decentralized exchange and much more.

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In this video we explain on a high-level what the Decentralized Finance DeFi movement is all about.

- How is it different from traditional finance?

- Why are intermediaries bad?

- How can DeFi improve inequality?

- What are examples of things you can do in DeFi?

This lesson prepares you for your DeFi journey before we go into more practical lessons like how to set up your Ethereum wallet or how to trade on Uniswap.

In this first lesson, we explain what DeFi is and how it has the potential to change the way Finance works.

What is DeFi - Everything you Need to Know About Decentralized Finance | Cryptotesters

What is DeFi?

An Ethereum wallet is your gateway to the world of DeFi. Similar to how you need a browser to access the internet - you need a crypto wallet to access DeFi.  When you "Log-In" into a DeFi application, you don't sign-up with an e-mail and password like you would in any normal internet application. Instead you connect your Ethereum wallet by clicking a button or scanning a QR-code, depending on whether you're using a mobile wallet or a browser wallet.

An Ethereum wallet stores your private keys belonging to your account which contains all your digital tokens. That's why securing these keys safely is paramount! Anyone with access to your key could steal your assets. 

In this tutorial, we'll show how you set-up a Metamask wallet and the best practices around safely storing your private keys.

Download Metamask here:  [https://metamask.io/](https://metamask.io/)

This lesson teaches you how to set-up your Ethereum wallet, specifically Metmask so you can use DeFi applications.

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How to set-up your Ethereum Wallet | Cryptotesters Tutorial

How to set-up your Metamask Wallet

Uniswap is a decentralised exchange protocol which launched on the Ethereum mainnet in November 2018. It was created by Hayden Adams who was trying to learn Solidity, the programming language of the Ethereum network. The idea of Uniswap had originally been laid out by Vitalik Buterin, in a Reddit post but Hayden thought it would be a cool idea to implement it in practice to train his Solidity skills. He later received a grant from the Ethereum Foundation to finish the project and launch it to the Ethereum mainnet. 

Today, Uniswap shows average trading volumes of $450 million dollar per day, oftentimes even outperforming centralized exchanges like Coinbase or Gemini. When you trade on Uniswap, there is no intermediary between you and the Blockchain. The entire trade is orchestraded by smart contracts. 

In this tutorial, we’ll explain how Uniswap works and how to make your first trade.

In this lesson we teach you how to swap tokens on the most popular decentralized exchange, Uniswap.

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How to make a trade on Uniswap | DeFi 101 Course by Cryptotesters

How To Trade on Uniswap

Lending and borrowing are some of the most important functions of any financial system. On Ethereum you can do it **trustlessly** without needing a bank to mediate between borrowers and lenders.

This means anyone from anywhere in the world can earn interest on their assets and/or get a loan without having to do any Know-Your-Customer (KYC) verification or credit checks.

The [Aave](https://aave.com/) protocol is currently managing over $20 billion in user funds as a result of this revolutionary approach to money markets.

Lending and borrowing are one of the most important primitives of any financial system. On Ethereum you can do it trustlessly without needing a bank to mediate between borrowers and lenders.

This means anyone from anywhere in the world can earn interest on their assets and/or get a loan without having to do any Know-Your-Customer (KYC) verification or credit checks.

The Aave protocol is currently managing over $20 billion in user funds as a result of this revolutionary approach to money markets.

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Lending & Borrowing crypto assets from anywhere in the world are some of the most popular use cases of Decentralized Finance. Learn how it works.

How to Lend & Borrow on Aave | Cryptotesters Academy

How to Lend & Borrow on Aave

In this tutorial we show you one of the most popular options to earn rewards on Ethereum: staking!

Staking refers to an activity performed by validators in Proof-of-stake networks such as Ethereum to vote on transactions. For normal users staking is best done through staking pools such as Stakewise who take away all the technical complexity and make staking as easy as clicking on a "deposit" button.

#### Links
[Stakewise App](https://stakewise.io/)
[What is Proof-of-Stake](https://cryptotesters.com/blog/ethereum-staking-explained)

EDITS: 

1) In the video we say that users can look for a discount on Uniswap. This is technically right but Stakewise automatically gets you that discount when you deposit through their app. They always give you the cheapest option.

2) In the video we say the discount on sETH2 will disappear in February when "The Merge" happens. This was wrong. Staking rewards will only be unlocked end of 2022 well after "The Merge".



In this tutorial we show you one of the most popular options to earn rewards on Ethereum: staking!

Staking refers to an activity performed by validators in Proof-of-stake networks such as Ethereum to vote on transactions. For normal users staking is best done through staking pools such as Stakewise who take away all the technical complexity

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In this tutorial we show you one of the most popular options to earn rewards on Ethereum: staking!

How to Stake Ethereum with Stakewise and Earn Up to 15% Yield

How to Stake Ether and Earn Up To 15% Yield

In this tutorial we show how to gain passive exposure to various sectors within the crypto space with Indexed Finance.

Indexed Finance is a project focused on the development of passive portfolio management strategies for the Ethereum network.

They offer various indices such as:

- DEFI5
- CC10
- DEGEN
- NFTP
- ORCL5
- FFF

Website: [Indexed Finance](https://indexed.finance/)

In this tutorial we show how to gain passive exposure to various sectors within the crypto space with Indexed Finance.

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How to Buy a DeFi Index and Stake It For $NDX tokens

How to Buy a DeFi Index and Stake It For $NDX

This course teaches you everything you need to know to start with your journey into Decentralized Finance. Made by Experts.

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