Longitudinal spatial language intervention studies have shown that greater exposure to spatial language improves children's performance on spatial tasks. Can short naturalistic, spatial language interactions also evoke improved spatial performance? In this study, parents were asked to interact with their child at a block wall exhibit in a children's museum. Some parents were instructed to emphasize formal shape terms, others to emphasize spatial goals, and some were not provided scripts. Children were presented with a series of spatial reasoning tasks before and after this parental interaction, and the amount and type of spatial language during the training session was coded for parents and children. We found that (a) parents significantly increased their spatial language use when prompted, (b) children and parents used different types of spatial language in each of the scripted conditions, and (c) children's spatial language during the interaction, and not parents', predicts children's subsequent improved puzzle performance.

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In recent decades, educators and policymakers in the United States have increased their focus on Science, Technology, Engineering, and Mathematics (STEM) learning opportunities both in school and in informal learning environments outside of school. Informal STEM learning can take place in varied settings and involves a variety of STEM domains (e.g., engaging in engineering practices in a construction exhibit at a museum; talking about math during book reading at home). Here we provide a selective review of the literature on informal STEM learning to illustrate how these educational experiences are crucial for efforts to increase early STEM learning even before children reach school age. Leveraging cognitive and learning science research to inform policy, we make three recommendations to advance the impact of informal STEM learning: 1) integrate cognitive and learning science-based learning practices into informal learning contexts, 2) increase accessibility and diversity of informal STEM experiences, and 3) create explicit connections and coherence between formal and informal STEM learning opportunities in early childhood education.

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