Kindergarten, from First Principles: Frameworks & Environment — Sources

Sources for Kindergarten, from First Principles: Ep. 6, Frameworks and the Prepared Environment

Research Tools Used

  • Claude (Sonnet 4.5)
  • Perplexity
  • Gemini

Key Sources

Montessori Research

  • Randolph et al. (2023). "Montessori education's impact on academic and nonacademic outcomes: A systematic review." Campbell Systematic Review
  • Lillard & Else-Quest (2006). "Evaluating Montessori education." Science
  • Lillard et al. (2017). "Montessori Preschool Elevates and Equalizes Child Outcomes: A Longitudinal Study." Frontiers in Psychology
  • National Montessori RCT (2025). PNAS - 24 programs, 588 children
  • Lillard (2012). Study comparing high-fidelity vs supplemented Montessori classrooms

HighScope Perry Preschool

  • Heckman et al. (2010). "The rate of return to the HighScope Perry Preschool Program." Journal of Public Economics
  • Schweinhart et al. (2005). "Lifetime Effects: The High/Scope Perry Preschool Study Through Age 40"
  • 50-year longitudinal follow-up data

Tools of the Mind

  • Diamond (2007). Initial study published in Science
  • Farran, Wilson, Lipsey (2013). Vanderbilt IES-funded replication - 60 schools, 877 children
  • What Works Clearinghouse reviews

Reggio Emilia Research

  • Heckman et al. (2017). "The life-cycle benefits of an influential early childhood program." University of Chicago
  • Emerson & Linder (2019). "Reggio Emilia practices: A systematic review and conceptual analysis."

Waldorf Education

  • Suggate et al. (2012). "School entry age and reading achievement in the international PISA study." Early Childhood Research Quarterly
  • Austrian study (2021). "Explaining Waldorf students' high motivation but moderate achievement in science." PMC
  • Vaccination research: measles outbreaks 1997-2011 in anthroposophic communities

RIE/Pikler Approach

  • Pikler Institute observational research (1946-present) - 60+ years, 2,000+ infants
  • Gerber, Magda. Resources for Infant Educarers foundational work

Environmental Design Research

  • Barrett et al. (2015). "The impact of classroom design on pupils' learning: Final results of a holistic, multi-level analysis." University of Salford HEAD study - 3,766 pupils, 153 classrooms
  • Fisher et al. (2014). "Visual environment, attention allocation, and learning in young children." Psychological Science
  • Heschong, Wright, & Okura (2002). "Daylighting impacts on human performance in school." Journal of the Illuminating Engineering Society

Toy and Material Research

  • Dauch et al. (2018). "The influence of the number of toys in the environment on toddlers' play." Infant Behavior and Development
  • Jirout & Newcombe (2015). Block and puzzle play research

Screen Time Research

  • Supanitayanon et al. (2022). "Displacement of peer play by screen time: associations with toddler development." Pediatric Research

Curriculum Effectiveness

  • Preschool Curriculum Evaluation Research (PCER) Consortium (2008). 14 curricula experimental evaluation

Policy & Practice

  • NAEYC (2020). "Developmentally Appropriate Practice" position statement
  • What Works Clearinghouse program reviews
  • Kraft (2020). "Interpreting effect sizes of education interventions." Educational Researcher

Executive Function Research

  • Multiple studies on EF correlation with academic achievement (r = 0.350 average effect size)
  • Hammond et al. Parental scaffolding and executive function development

Notes

  • Research compiled: December 2025
  • Comprehensive research from three AI research tools
  • Over 140 cited sources across the research outputs
  • Primary focus on peer-reviewed studies, meta-analyses, and longitudinal research
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