Episode

30 May 2022 · 24 min

0:00

In this episode of the Class Disruptor podcast, Michael Horn and Diane Tavenner explore the common belief that older students—especially those in middle and high school—have fixed abilities that cannot be significantly changed. Horn introduces a pushback he received on a passage from his upcoming book, which claims that fixing children by point‑in‑time assessments narrows opportunities. The critic argued that while such claims may hold for elementary students, they are rare for high‑schoolers, suggesting that older students rarely improve. Tavenner and Horn examine why this perception persists, tracing it to the entrenched fixed‑time, variable‑learning structure of most schools, which limits acceleration and creates rigid tracks like honors and AP classes. They contrast this with the Summit school model, which flips the paradigm: learning is fixed (students must master content) and time is variable (students progress at their own pace using on‑demand content assessments and mastery pathways). The conversation references scientific evidence—Bloom’s studies, Khan Academy data, and broader research—showing adolescent brain plasticity and the capacity for growth when given effective, time‑flexible instruction. They also discuss the “habits of success” framework (Turnaround for Children’s Building Blocks) and the AVID program, emphasizing that executive‑function skills and mindsets are teachable, not innate, and are crucial for academic achievement. Throughout, they highlight adult mindset barriers, noting that many educators still view teenagers as fixed in ability, which hampers systemic change. The episode closes with personal recommendations: Tavenner mentions Crash Course Black American History, while Horn shares his reading of Dostoevsky’s Crime and Punishment, illustrating a personal commitment to growth and learning.

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