Final answer:
The year-round school calendar is characterized by vacation days that are more evenly spread throughout the year, compared to the traditional calendar where vacations are concentrated during the summer.
Step-by-step explanation:
The statement that BEST describes what is shown in the chart comparing the year-round school calendar to the current traditional school calendar would be that the vacation days are more evenly spread out in the year-round calendar. In a traditional school calendar, the majority of vacation days are typically concentrated during the summer months, whereas in a year-round calendar, those days are distributed throughout the year, providing shorter, more frequent breaks. This approach can prevent long gaps in learning and the need for extensive review when students return from summer vacation.