Students investigate percents and interest. In this algebra lesson, students invest money in a bank account and calculate the interest rate they receive over time. They convert percents to decimals and solve problems using percents.

In this data collection and analysis lesson, students observe and graph the weather conditions during one school week, then calculate the average weather temperature. Extensions are included.

Learners work with their pen pals to plan a service learning project. They locate local organizations who collect canned goods. They use a graph to show the progress of the donations.