Problem: Sorting rectangles

• Autores: Colleen D. Foster (ed. lit.)
• Localización: Teaching Children Mathematics, ISSN 1073-5836, Vol. 18, Nº 4, 2011, págs. 215-218
• Idioma: inglés
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• Resumen

  • Exploring different characteristics of the numbers 1-25, students have opportunities to represent the commutative property of multiplication, construct an understanding of the difference between prime and composite numbers, and explore what makes a number "square". The exploration is a way to introduce students to the array model of multiplication, a tricky concept for them to construct. They interchange rows and columns until they have worked with arrays many times and in many different contexts.