Hirsch Argument Atlas
Evidence-source registry, machine-normalized 2026-08-24. Identity and independence flag are unreviewed; occurrence→claim links were machine-relinked. ← Back to the registry
S0142 · march_of_time_1940_developmentalism · registry identity

March of Time program on developmentalism

March of Time · 1940
historical record independent3 occurrences across 2 books · load 6
Bears on

Canonical propositions this source was matched as evidence for.

P10 — The long decline in American verbal test scores that began in the 1960s was caused by the mid-century adoption of content-light, skills-b…
How Hirsch uses it

Every occurrence, grouped by book and chapter, with the claim it was linked to support and (where the extraction regenerated one) the underlying warrant.

2010 · The Making of Americans
A 1940s 'March of Time' film documenting the shift toward 'learning by doing' and away from rote factual learning in tens of thousands of schools.
direct By the 1940s, progressive education in America began replacing factual study and multiplication tables with 'learning by doing.'
ch 6 · historical_example · the-making-of-americans:ch6_E36
Warrant (implicit): Documentary films produced for public consumption serve as accurate, representative records of nationwide shifts in instructional methodology rather than merely capturing exceptional or experimental cases.
could fail ifThe 'March of Time' films were often dramatized or promotional in nature, potentially portraying a pedagogical trend as a ubiquitous revolution to enhance the cinematic narrative.
2022 · American Ethnicity
A 1940 'March of Time' program featuring William Heard Kilpatrick and John Dewey demonstrating enthusiasm for developmentalism.
related Developmentalism gained full control over American schools and teacher training institutions during the second half of the twentieth century.
ch 2 · historical_example · ae:ch2_E17
March of Time program circa 1940 showcasing the enthusiasm for developmentalism in grade schools.
related Developmentalism gained full control over American schools and teacher training institutions during the second half of the twentieth century.
ch 2 · anecdote · ae:ch2_E18
Endnote numbers seen

Raw book:chapter:endnote references collected during endnote backfill.

ae:2:38
Raw source_reference strings seen

As they appeared before normalization/consolidation into this source identity.

  • March of Time (1940)
  • March of Time, 1940