This document provides a lesson on credit cards for high school students. It explains how credit cards work similarly to Ram borrowing a pencil from his friend Neeta with the expectation that it will be returned. It notes that credit cards allow you to borrow money from a bank when making purchases, with the expectation that the amount will be repaid within a certain number of days, usually 30 days. If the amount is not repaid, interest is charged. It gives examples of how interest compounds if the full amount is not repaid over time. It shows that if only the minimum payment of 5% is made each month, it can take over 25 years to repay the full amount borrowed and one would end up paying over 3 times the original