Bella Starling Alves
starlingalves.bsky.social
Bella Starling Alves
@starlingalves.bsky.social
Postdoc scholar at The Number Lab - Vanderbilt University, studying numerical cognition.

bellastarlingalves.com
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Questions for future research: How does fraction transcoding develop? When do kids stop making syntactic and lexical errors?

I loved doing this study: working with adults with low schooling was a gift. I learned a lot (about life, gratitude, and fractions) from them!

doi.org/10.5964/jnc....
From One-Half to 12th: Fraction Writing in Children and Adult Education Students| Journal of Numerical Cognition
doi.org
February 15, 2025 at 8:32 PM
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We also tested 2nd graders (since, currently, fraction instruction in Brazil starts in the 3rd grade). They were not able to write any fraction. Their errors fell into the same types.

These results suggest that informal experiences (over time) may support learning fraction transcoding.
February 15, 2025 at 8:32 PM
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We tested 37 adults with low schooling (~3.5y). They heard fraction names and wrote them as numbers. About 50% of them had high accuracy, and 50% failed the task.

Errors fell into three types: syntactic (wrong notation), lexical (wrong digits), and combined (wrong digits and notation).
February 15, 2025 at 8:32 PM