standard 4: model with mathematics. Expand +. classroom observations: Teachers who are developing studentsâ capacity to model with mathematics move explicitly between real-world scenarios and mathematical representations of those scenarios.
exists and is an alternate of . Functional extinction means that there are not enough live animals (or animal protoplasm) of a certain species for the species to breed and survive.
An endangered language is one that is likely to become extinct in the near future. Many languages are failing out of use and being replaced by others that are more widely used in the region or nation, such as English in the U.S. or Spanish in Mexico.n endangered language is one that is likely to become extinct in the near future. Many languages are failing out of use and being replaced by others that are more widely used in the region or nation, such as English in the U.S. or Spanish in Mexico.