Every time we use the internet, we leave behind more than the content we intentionally post.

Apps, websites, search engines and social platforms can collect information about what we click, watch, buy, search for, like and interact with. Over time, those signals help technology platforms build a picture of who they think we are.

But how accurate is that picture?

This course helps students understand the role data plays in shaping their digital experience and encourages them to become more thoughtful digital consumers.

Students will:

• Learn the basics of personal data, tracking and online behavioral signals.

• Explore how platforms use information to personalize content and recommendations.

• Discuss the difference between information we intentionally share and information generated through our behavior.

• Consider what algorithms might assume about their interests or identity.

• Examine privacy settings and common ways people can manage their digital information.

• Reflect on whether their digital activity accurately represents who they are.

Students leave the lesson with a stronger understanding that technology isn’t simply something they use—it is also constantly learning from how they use it.