Which visual materials can teachers use in STEM lessons?

In STEM education, teachers can utilize a wide range of visual and observational materials to help students bridge the gap between concrete observations and abstract scientific concepts. Effective instructional media include:

• Physical and Electronic Objects: Models, diagrams, charts, graphs, maps, globes, posters, and pictures.1
• Digital and Interactive Tools: Videos, films, and electronic whiteboards.1
• Simulations: Ranging from paper-and-pencil exercises to complex computer-aided interactive systems, simulations allow students to observe processes—such as galactic movements or biological functions—that might otherwise be too slow, expensive, or dangerous to demonstrate in a classroom.2
• Experiential Learning: Field trips, demonstrations, experiments, and the use of visiting resource people.1

To ensure these materials effectively support learning, teachers must provide careful guidance and interpretation. Visual aids alone can sometimes be a hindrance if students misinterpret the information; therefore, educators should facilitate discussion to help students draw accurate inferences from what they observe.1