Confident Male Teacher Explaining Science to Senior Students in Classroom

A high-resolution, realistic video of a confident male teacher in his 30s teaching a group of senior secondary students (Grade 11 and 12) in a modern private tuition classroom. The teacher is explaining a complex science or math concept clearly on a whiteboard, using diagrams and formulas. Students (around 10-12) are sitting attentively at desks, taking notes and engaging with the lesson. The classroom has bright lighting, educational posters on the walls, and a motivational quote behind the teacher. The camera captures close-up shots of the teacher's expressive teaching, students’ focused faces, and a wide-angle classroom view. A calm, inspiring instrumental background music plays softly. The tone is professional, inspiring, and trustworthy.