Which statement demonstrates the effectiveness of a new schoolwide mathematics program after its first year?

The statement indicating that "student benchmark data indicates that program objectives were met" effectively demonstrates the impact of a new schoolwide mathematics program because it is based on measurable outcomes. When evaluating the effectiveness of an educational program, quantitative data such as student benchmark scores provides concrete evidence of whether learning objectives were achieved. These metrics can illustrate improvements in student performance and understanding of mathematical concepts, which are central to determining the success of the program.

In contrast, while feedback from students, teachers, and parents can provide valuable qualitative insights into the program's reception and implementation, they do not offer definitive proof of academic progress. Satisfaction and feedback can be subjective and might not reflect the actual educational impact the program has on students’ learning. Thus, the focus on concrete data from student benchmarks is crucial for making informed assessments about the program's effectiveness.