Teacher facing difficulty bringing real life objects to class will use

Models provide scaled or simplified representations of real objects so learners can observe structure safely and affordably. Physical models of heart lungs or simple machines help learners visualize parts and relations. When physical models are not available teachers can use 3D prints pictures or virtual simulations. Good use of models invites prediction labeling manipulation and explanation. Learners can also build low cost models from local materials which supports creativity and ownership. Follow up questions link model observations to real life function and safety. This approach solves access barriers while preserving concrete learning experiences for all students.