Math Education Illustration - Teacher Explaining Basic Addition #127147 (License: Personal Use)

This black-and-white line drawing shows a male educator in a collared shirt and trousers, holding an open book in one hand while gesturing toward a chalkboard displaying the simple arithmetic equation “1 + 1 = 2”. The style is clean and accessible, evoking classic classroom instruction and early math literacy.

Used on educational blogs, school resource pages, curriculum sites, or teacher training materials to illustrate foundational math instruction; matches user intent for visual aids in elementary education content.