Teacher Explaining Geometry in Classroom - Educational Illustration #3046493 (License: Personal Use)

A smiling female instructor in a blue dress stands beside a green chalkboard, pointing to a white chalk-drawn triangle with intersecting lines. Four diverse adult learners sit facing her in wooden chairs, attentively observing the lesson. The scene captures an inclusive, interactive classroom environment focused on foundational math concepts.

Used on educational websites, teacher training portals, or school resource pages to illustrate active learning, STEM instruction, or adult education settings; matches user intent for visual teaching aids or curriculum design examples.