Building with blocks is a popular activity for children that encourages creativity and problem-solving skills. Blocks can be made from various materials, such as wood, plastic, or foam, and come in different shapes and sizes. When children stack, arrange, and balance these blocks, they learn about basic engineering concepts like stability and gravity. This activity also promotes fine motor skills as children grasp and manipulate the blocks. Additionally, building with blocks can enhance spatial awareness and cognitive development. Many educational toys, like LEGO and Duplo, are designed specifically for this purpose, making block building both fun and beneficial for young learners.