ConnecticutAssociativeCausalMathCognitive SciencePre-KElementaryMiddleHigher EducationPrincipal Investigator: Hilary BarthProject OverviewBackground & Purpose: The study will investigate the effects of perceptual and abstract magnitude biases in children's and adults' quantitative thinking. Setting: This project takes place in laboratories, childcare centers, and elementary schools. Research Design: This project is cross-sectional and is designed to generate evidence that is associative/ correlational [quasi-experimental] and causal [experimental]. Original data are collected through assessments of learning and observation [videography]. Findings: Findings will be posted as they become available.