What term does Vygotsky use to designate the symbols created by cultures that help people to think communicate and solve problems?

Vygotsky refers to these symbols as "cultural tools." These tools include language, writing systems, mathematical notations, and other symbolic systems that are passed down through generations within a culture to enhance cognitive processes and problem-solving abilities. He believed that the use of cultural tools plays a vital role in the development of higher mental functions in individuals.