Children learn foreign languages differently than adults for several reasons. They are more enthusiastic, want to please teachers, and lack inhibitions. However, they also lose interest more quickly and are less able to self-motivate. According to Piaget, children are active learners who construct knowledge through their interactions with the environment. Vygotsky argued that language and social interaction are essential to children's cognitive development. Teachers can help children learn by scaffolding instruction through routines, modeling, and breaking tasks into steps. Starting foreign language education at a young age may help because children's brains are still developing the mechanisms for language acquisition.