Sensory bin with materials representing different surfaces (e.g., sand, water, fabric, foam)..Fill a sensory bin with materials that have different surface textures and properties.
Instruct students to explore the sensory bin and identify the surfaces they feel.
Ask students to describe the characteristics of each surface they touch (e.g., rough, smooth, bumpy).
Discuss the differences between flat and non-flat surfaces and their uses in various contexts.