Answer:
These kinds of challenges and trade-offs may also be relevant to the decisions schools will need to make for 2020–2021. For example, von Hippel (2020), when discussing school instruction that spans 12 months, explains that although year-round calendars increase summer learning, in most cases they reduce learning at other times of year, so that the total amount learned over a 12-month period is no greater under a year-round calendar than under a nine-month calendar.
Explanation:
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