Proposals for extending the United States school year to bring it more in line with its European and Japanese counterparts are often met with the objection that curtailing the schools’ three-month summer vacation would violate an established United States tradition dating from the nineteenth century.
The Objection
Extending the U.S. school year would violate the established 19th-century tradition of three-month summer vacations.
Author's Counter
Sure, 19th-century schools closed for three months, but only because rural schools needed children for harvest labor.
The essence of the tradition was .
Evaluate
The three most common moves on Method are Analogies, Faulty Implications, and Alternatives.
The author does seem to be trying to break the analogy between modern times and traditional times. The objectors are acting like, , and the author is trying to introduce a Distinction between then and now, to interrupt this argument by analogy:
back THEN, we need children's labor for successful harvests (implied: NOWADAYS, we don't need their labor)
She then clarifies the real spirit behind the policy was to adjust school to meet economic needs.
Goal
The argument makes two moves, either of which could be tested: - pointing out an implied difference between then and now - showing the underlying principle behind the traditional policy