For the first question regarding the system that teachers at Southington High School support with leveled classes, the correct answer is:
Option B: Tracking
Tracking refers to the practice of placing students into different classes based on their perceived abilities or academic performances, which aligns with the implementation of leveled classes like College Prep, Competitive College Prep, Honors, and Advanced Placement.
For the second question about the definition of sorting, the correct answer is:
Option A: classifying students based on academic merit or potential.
Sorting specifically pertains to the process of grouping or categorizing students by their abilities, skills, or academic achievement levels.