In this lesson conducted by Paulina Tardun, students learned about the double entry accounting system with a focus on recording financial transactions involving shop investments, purchases, and liabilities. The lesson included explanations on writing accounts for cash and loans, with examples such as “borrowing money” and setting up cash accounts with corresponding columns for date, details, and euros. The session also emphasized the importance of understanding assets and liabilities while working through practical examples of transactions affecting a business’s financial records.