{
  "abstract": "Problems developed for a mathematics circle conducted throughout the school year in a primary school class, involving all pupils without any selection, thus working with a heterogeneous group of children.",
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  "arxiv": "2609.39641",
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    {
      "name": "Evgeny Lakshtanov"
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    {
      "name": "Marek Tusiewicz"
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  "doi": "10.48550/arxiv.2609.39641",
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  "pdf_url": "https://arxiv.org/pdf/2609.39641",
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  "published": "2026-10-09",
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  "title": "A Math Circle in Third Grade",
  "title_text": "A Math Circle in Third Grade",
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