Final answer:
The most effective approach for a principal to determine the effectiveness of a teacher's reading program is through evidence-based evaluation, which includes classroom observations, student achievement data analysis, and gathering feedback from students, parents, and colleagues.
Step-by-step explanation:
The most effective approach a principal can take to determine the effectiveness of a teacher's reading program is by implementing an evidence-based evaluation process. The principal can observe classroom instruction, review student achievement data, and gather feedback from students, parents, and colleagues.
For example, the principal can conduct classroom observations to assess the teacher's instructional strategies, classroom management, and student engagement. Additionally, the principal can analyze student achievement data, such as standardized test scores, to evaluate the impact of the reading program on student learning outcomes.
Furthermore, the principal can seek input from students, parents, and colleagues through surveys or interviews to gather their perspectives on the effectiveness of the reading program. This feedback can provide valuable insights into the program's strengths and areas for improvement.