Counterexamples as starting points for reasoning and sense making

• Autores: David Yopp
• Localización: Mathematics teacher, ISSN-e 2330-0582, ISSN 0025-5769, Vol. 106, Nº 9, 2013, págs. 674-679
• Idioma: inglés
• DOI: 10.5951/mathteacher.106.9.0674
• Texto completo no disponible (Saber más ...)
• Resumen

  • Asked to "fix" a false conjecture, students combine their reasoning and observations about absolute value inequalities, signed numbers, and distance to write true mathematical statements.