Introduce the session and layout today's objectives. Emphasize that students will learn about complementary, supplementary, and vertical angles and their real-life applications.

Review the basic definitions of angles. Use diagrams on the board and engage with students about what they already know about angles.

Discuss complementary and supplementary angles with real-world examples. Use diagrams and invite students to work through problems on the whiteboard.

Demonstrate vertical angles using intersecting lines. Use the interactive demo to visually reinforce the concept and facilitate discussion regarding everyday occurrences of vertical angles.

Summarize the key points from the lesson. Ask students to share one real-life example of an angle relationship and review any questions they may have.