Final answer:
The correct answer is B. False. Teachers always need to invest time in assessing their teaching to ensure the effectiveness of their pedagogical strategies and to address educational discrepancies. This also allows them to adapt to changes in standards and educational approaches, such as addressing the 'teaching to the test' phenomenon.
Step-by-step explanation:
The statement 'Once teachers have been teaching for a number of years, they no longer need to devote much time to assessing their teaching. A. True B. False' is false. Ongoing assessment of one's teaching is crucial, regardless of how many years a teacher has been in the profession. Assessments provide insight into whether students are truly understanding the material and are prepared for subsequent levels of education, such as moving from high school to college.
Moreover, the effectiveness of teaching is a critical issue in schools. Statistics highlight the disparity where many U.S. teachers teach subjects that they have not majored or minored in, especially in contrast with countries like Singapore. Consequently, students in less advantaged American schools are more likely to be taught by teachers without specialization in the subject they teach. Additionally, standardized testing and 'teaching to the test' have influenced educational methods, often detracting from broader educational goals, proving that regular assessment of teaching practices remains important for all teachers.