CLEAN: Stargazers in awe as total eclipse arcs across Pacific

The teacher introduces the session, discusses the concept of Battlefield, and shares a personal reflection about Leo.

What is the initial focus of the teacher's introduction?

• An overview of the lesson

• A brief greeting

• A question to the students

• A detailed explanation of a concept

What topic does the teacher discuss after the introduction?

• A historical event

• A scientific theory

• A mathematical problem

• The concept of a battlefield

What does the teacher express at the end of the discussion?

• Dislike for a subject

• Love for Leo

• Confusion about a topic

• Interest in a new idea