Education: LEGO is often used as an educational tool to teach children about engineering, science, math, and problem-solving skills. LEGO sets and programs are available for children of all ages, from preschool to high school.
Toy Building: LEGO's primary use is for building toys.
Prototyping: LEGO bricks can be used to quickly prototype and test ideas. This is especially useful in engineering and product design, where physical models are needed to evaluate the feasibility and functionality of a design.