Which statement is NOT true regarding teacher qualifications in public schools?

The statement that teachers must be fully certified in every state is not true because teacher certification requirements can vary significantly from state to state. While many states require teachers to hold specific certifications to teach in public schools, there are often different pathways to achieve teaching qualifications, including alternative certification programs and reciprocity agreements between states that allow teachers to be certified based on their qualifications from another state. Therefore, it is not accurate to assert that full certification is a universal requirement across all states.

The other statements reflect correct aspects of teacher qualifications. Teachers must be highly qualified, meaning they have the appropriate education and skills to teach effectively. Subject-matter competency is indeed critical when teachers are relocating across state lines, as this ensures that they can proficiently teach the subjects they are assigned. Additionally, teachers in high-performing schools may be expected to have greater qualifications or credentials to maintain high educational standards, reflecting the competitive nature of such environments.