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Updated: Dec 16, 2025

Problem-Solving Before Instruction PS-I: A Protocol for Assessment and Intervention in Students with Different Abilities
Published on: September 11, 2021
Guy Politzer1, Christelle Bosc-Miné2, Emmanuel Sander2
1Institut Jean Nicod, Ecole normale supérieure, Paris.
Eleven-year-old children demonstrated remarkable proficiency in solving "natural syllogisms," mirroring adult performance. Their success suggests that deductive reasoning skills develop earlier than previously thought, particularly with implicit premises.
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