This is a PowerPoint lesson and note-taking guide that demonstrates how to calculate simple and compound interest. The lesson can be done in one day or broken into two days. I use the PowerPoint on my smart-board and upload it to goggle classroom for students if they need extra help or if they were absent for the day. You will find that as you go through the PowerPoint, students can take notes on their note page which we put into our math interactive notebooks. The PowerPoint is editable and has 11 slides.