In this case, it is a basic course based on the experience of El Salvador "My First Bitcoin". The students know that Bitcoin exists and want to learn. Some have knowledge of "cryptocurrencies", mainly shitcoins. This time, we have to learn about onchain wallets. To do the practices, we will use Testnet4, which is the one that is working. It would be creating a wallet, making transactions, deleting the wallet and restoring from the seed. Very briefly, they will see the use of a transaction using an OnlyWatch wallet and the offline signature.